Genotoxic exposures of potroom workers. (1/621)

OBJECTIVES: Potroom workers in aluminum reduction plants have increased risks for bladder and lung cancer due to exposure from polycyclic aromatic hydrocarbons (PAH). In this study correlations between measures of the external, internal, and biological effective dose have been studied for PAH. METHODS: Venous blood samples were obtained from 98 male potroom workers and 55 unexposed male blue-collar workers, for the analysis of aromatic adducts to DNA (deoxyribonucleic acid) in lymphocytes, using the 32P-postlabeling technique. 1-Hydroxypyrene in urine was analyzed with high-pressure liquid chromatography. Personal sampling of both particulate and gas phase PAH was performed during a full workday for the potroom workers and for 5 referents. Individual PAH congeners were determined with liquid chromatographic-mass spectrometric and gas chromatographic-mass spectrometric techniques. RESULTS: The respiratory-zone airborne level of the sum of 22 particulate (median 13.2 micro/m3) and the 7 gas phase PAH-congeners (median 16.3 microg/m3) among the potroom workers was a hundred times higher than among the referents. The urinary concentration of 1-hydroxypyrene before work was 30 times higher for the potroom workers (median 3.43 micromol/mol creatinine) than for the referents. Most airborne PAH congeners correlated with the excretion of 1-hydroxypyrene in urine. The frequency of aromatic DNA adducts did not, however, differ between the potroom workers and the referents, and no correlation was found for 1-hydroxypyrene in urine. CONCLUSIONS: Despite an obvious occupational exposure to PAH, no increase in aromatic DNA adducts in lymphocytes was found among the potroom workers.  (+info)

Effects of experimental exposure to triethylamine on vision and the eye. (2/621)

OBJECTIVES: To determine the effect of triethylamine (TEA) on the cornea and to evaluate the cause of blurred vision. To find the lowest observed effect concentration of exposure to TEA. METHODS: Four people were exposed to TEA for 4 hours at concentrations of 40.6, 6.5, and 3.0 mg/m3. Before and after every exposure, symptoms and ocular microscopy findings were recorded. Binocular visual acuity and contrast sensitivity at 2.5% contrast were also measured. Also, before and after the 40.6 mg/m3 exposure, corneal thickness was measured and ocular dimensions were recorded by ultrasonography, endothelial cells of the cornea were analysed, and serum and lacrimal specimens were collected for the analysis of TEA. RESULTS: After exposure to 40.6 mg/m3 TEA there was a marked oedema in the corneal epithelium and subepithelial microcysts. However, corneal thickness increased only minimally because of the epithelial oedema. The lacrimal concentrations of TEA were, on average (range) 41 (18-83) times higher than the serum TEA concentrations. The vision was blurred in all subjects and visual acuity and contrast sensitivity had decreased in three of the four subjects. After exposure to TEA at 6.5 mg/m3 two subjects experienced symptoms, and contrast sensitivity had decreased in three of the four subjects. There were no symptoms or decreases in contrast sensitivity after exposure to a TEA concentration of 3.0 mg/m3. CONCLUSIONS: TEA caused a marked oedema and microcysts in corneal epithelium but only minor increases in corneal thickness. The effects may be mediated by the lacrimal fluid owing to its high TEA concentration. Four hour exposure to a TEA concentration of 3.0 mg/m3 seemed to cause no effects, whereas exposure to 6.5 mg/m3 for the same period caused blurred vision and a decrease in contrast sensitivity.  (+info)

Dose dependent reduction of erythroid progenitor cells and inappropriate erythropoietin response in exposure to lead: new aspects of anaemia induced by lead. (3/621)

OBJECTIVE: To determine whether haematopoietic progenitor cells and erythropoietin (EPO), which is an essential humoral stimulus for erythroid progenitor (BFU-E) cell differentiation, are affected by lead intoxication. METHODS: In male subjects chronically exposed to lead with and without anaemia, pluripotent (CFU-GEMM), BFU-E and granulocyte/macrophage (CFU-GM) progenitor cell counts in peripheral blood were measured with a modified clonal assay. Lead concentrations in blood (PbB) and urine (PbU) were measured by the atomic absorption technique, and EPO was measured with a modified radioimmunoassay. RESULTS: PbB in the subjects exposed to lead ranged from 0.796 to 4.4 mumol/l, and PbU varied between 0.033 and 0.522 mumol/l. In subjects exposed to lead with PbB > or = 2.896 mumol/l (n = 7), BFU-E cells were significantly reduced (p < 0.001) whereas the reduction in CFU-GM cells was only of borderline significance (p = 0.037) compared with the age matched controls (n = 20). The CFU-GEMM cells remained unchanged. Furthermore, BFU-E and CFU-GM cells were reduced in a dose dependent fashion, with increasing PbB or PbU, respectively. In the subjects exposed to lead EPO was in the normal range and did not increase in the presence of anaemia induced by lead. No correlations existed between EPO and PbB, PbU, or progenitor cells. CONCLUSION: The data suggest new aspects of lead induced anaemia besides the currently acknowledged shortened life span of erythrocytes and inhibition of haemoglobin synthesis. Two additional mechanisms should be considered: the reduction of BFU-E cells, and inappropriate renal EPO production in the presence of severe exposure to lead, which would lead to an inadequate maturation of BFU-E cells.  (+info)

Historical cohort study of a New Zealand foundry and heavy engineering plant. (4/621)

OBJECTIVES: To investigate the mortality of workers who had been exposed to asbestos, machining fluids and foundry work in a foundry and heavy engineering plant in the railway rolling stock manufacturing industry in New Zealand. METHODS: Historical cohort study design. RESULTS: For the total workforce of 3522 men employed between 1945 and 1991, follow up was 90% of person-years to 31 December 1991. Significantly increased standardised mortality ratios (SMRs) were found for all causes of death combined (SMR 1.07; 95% confidence interval (95% CI) 1.01 to 1.14), all malignancies (SMR 1.15; 95% CI 1.01 to 1.31), circulatory (SMR 1.16; 95% CI 1.07 to 1.27) and musculoskeletal diseases (SMR 3.06; 95% CI 1.39 to 5.84), all digestive cancers (SMR 1.29; 95% CI 1.04 to 1.59), all respiratory cancers (SMR 1.34; 95% CI 1.08 to 1.65), cancer of the oesophagus (SMR 1.97; 95% CI 1.01 to 3.45), and mesothelioma of the pleura (SMR 6.58; 95% CI 1.24 to 19.49). Three deaths from pleural mesothelioma were recorded, with latency times of 51, 53, and 57 years. There were no dose-response relations between exposure to asbestos, machining fluids or foundry work, or by duration of employment in the plant, and any cause of death. CONCLUSIONS: This study found small increases in risk for several causes of death among foundry and heavy engineering workers; however, these increases were small and the possible effects of smoking and other lifestyle factors could not be excluded. There was evidence of asbestos related disease in those involved in engineering work in the past.  (+info)

Modulating influence of cytochrome P-450 MspI polymorphism on serum liver function profiles in coke oven workers. (5/621)

OBJECTIVES: It was reported previously that topside oven workers with heavy exposure to coke oven emissions had increased serum activities of hepatic aminotransferase in one coke oven plant. This study was conducted to investigate the modifying effect of CYP1A1 MspI polymorphism on liver function profiles in coke oven workers. METHODS: 88 coke oven workers from a large steel company in Taiwan were studied in 1995-6. Exposure was categorised by work area: topside oven workers and sideoven workers. Liver function profiles including serum aspartate aminotransferase (AST), alanine aminotransferase (ALT), r-glutamyl transpeptidase (GGT), alkaline phosphatase (ALP), and total bilirubin (BIL) were examined in the morning after personal exposure measurements. The MspI polymorphism was determined by polymerase chain reaction (PCR) and restriction fragment length polymorphism (RFLP). RESULTS: Five of 23 (22%) topside oven workers and seven of 65 (11%) sideoven workers had the CYP1A1 MspI homozygous variant genotype. With sideoven workers with the combined wild type and heterozygous variant as the reference group in multiple regression models, it was found that topside oven workers with the combined traits had mean AST and ALT activities that were 21% and 46% higher (95% confidence interval (95% CI) 4% to 42% and 12% to 91%, respectively) than the reference group after adjusting for appropriate confounders. Also, topside oven workers with the homozygous variant trait had mean AST, ALT, and GGT activities that were 59%, 68%, and 157% higher (95% CI 21% to 109%, 6% to 168%, and 39% to 374%, respectively) than the reference group. The prevalence of an abnormal hepatocellular pattern (AST > 37 IU/l or ALT > 39 IU/l) was more common in the topside oven workers with the homozygous variant than in the sideoven workers with the other combined genotypes (adjusted odds ratio 9.9, 95% CI 1.2 to 82.3) after adjusting for appropriate confounders. CONCLUSIONS: The CYP1A1 MspI polymorphism may modify the biotransformation of coke oven emissions, which results in hepatocellular damage in coke oven workers.  (+info)

20 years of medical surveillance on exposure to allergenic and non-allergenic platinum compounds: the importance of chemical speciation. (6/621)

OBJECTIVES: Chloroplatinates are potent allergens but other soluble platinum compounds such as tetraammine platinum dichloride (TPC) do not provoke reactions in subjects who are sensitive to chloroplatinates. TPC has been used in the manufacture of autocatalysts for 20 years. This study analyses 20 year data on exposure to soluble platinum compounds and medical surveillance to confirm that TPC is not allergenic. METHODS: Workers in three distinct operations were exposed to soluble platinum compounds as chloroplatinates, chloroplatinates with TPC, or to TPC alone. Results of personal air sampling for soluble platinum compounds were compared together with the results of medical surveillance. RESULTS: The levels of exposure to soluble platinum compounds in each operation were comparable but the incidence of allergy was significantly different. In a subgroup of workers consistently exposed to chemical processes in each operation, the cumulative chance of being sensitised after 5 years of exposure was estimated as 51% for chloroplatinate exposure, 33% for mixed exposure, and 0% for TPC alone. The differences in sensitisation rates could not be explained by age, sex, and atopy. Nor could they be explained by the increased frequency of smoking in the workers with chloroplatinate exposure, despite the markedly higher risk of sensitisation in smokers. The differences could only be explained by the chemical stability of TPC. CONCLUSIONS: This study shows that the soluble platinum compound TPC is not allergenic under normal industrial conditions. Characterisation of the chemical compound (speciation) is essential to prevent stringent exposure limits being imposed for all soluble compounds on a generic basis.  (+info)

Point source sulphur dioxide peaks and hospital presentations for asthma. (7/621)

OBJECTIVE: To examine the effect on hospital presentations for asthma of brief exposures to sulphur dioxide (SO2) (within the range 0-8700 micrograms/m3) emanating from two point sources in a remote rural city of 25,000 people. METHODS: A time series analysis of SO2 concentrations and hospital presentations for asthma was undertaken at Mount Isa where SO2 is released into the atmosphere by a copper smelter and a lead smelter. The study examined 5 minute block mean SO2 concentrations and daily hospital presentations for asthma, wheeze, or shortness of breath. Generalised linear models and generalised additive models based on a Poisson distribution were applied. RESULTS: There was no evidence of any positive relation between peak SO2 concentrations and hospital presentations or admissions for asthma, wheeze, or shortness of breath. CONCLUSION: Brief exposures to high concentrations of SO2 emanating from point sources at Mount Isa do not cause sufficiently serious symptoms in asthmatic people to require presentation to hospital.  (+info)

Extremely low frequency magnetic fields and fertility: a follow up study of couples planning first pregnancies. The Danish First Pregnancy Planner Study Team. (8/621)

OBJECTIVES: To evaluate the impact of extremely low frequency (ELF) magnetic fields on markers of human fertility. METHODS: A follow up study of time to pregnancy, semen quality, and reproductive hormones was conducted among couples planning first pregnancies (36 males were welders and 21 were non-welders). The male and the female partner were monitored for exposure to ELF magnetic field by personal exposure meters. As summary measures of exposure the median value was calculated together with the 75 percentile value and the proportion of measurements exceeding 0.2 and 1.0 microT, respectively. Each summary measure was divided in three categories: low, medium, and high. RESULTS: Couples in which the man had a medium or a high proportion of measurements > 1.0 microT had a reduced probability of conception per menstrual cycle compared with the men with low exposure, but the result was only significant for the men with medium exposure. This finding was partly attributable to a high probability of conception per menstrual cycle among the men with low exposure compared with non-welders in the original cohort of 430 couples. Other summary measures were not related to probability of conception or other markers of fertility. A possible negative association was found between high probability of conception and female exposure measures based on the median, the 75 percentile, and the proportion of measurements > 0.2 microT, but no association was found with the proportion of measurements > 1.0 microT. CONCLUSIONS: The findings provide no consistent support for a hypothesis of a deleterious effect of low level ELF magnetic fields on markers of human fertility. However, due to the relatively small size of the studied population only large associations would be detected.  (+info)

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A flip-ship structure having a semiconductor substrate including an electronic device formed thereon, a contact pad on said semiconductor substrate electrically connected to said electronic device, a passivation layer on said semiconductor substrate and on said contact pad wherein said passivation layer defines a contact hole therein exposing a portion of said contact pad, an under-bump metallurgy structure on said passivation layer electrically contacting said portion of said contact pad that is exposed; and a solder structure on said under-bump metallurgy structure opposite said semiconductor substrate, said solder structure including an elongate portion on said elongate portion of said metallurgy structure opposite said contact pad and an enlarged width portion on said enlarged width portion of said metallurgy structure opposite said passivation layer.
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Metallurgy in Eurasia originated in Southwest Asia due to the widespread adoption of, and experimentation in, pyrotechnology and the desire for new materials to serve as aesthetic visual displays of identity, whether of a social, cultural or ideological nature. This can be demonstrated through the early use of metal for jewellery and the use of ore-based pigments along with the continued use of stone, bone, and other materials for most tools. The subsequent appearance of metals throughout Eurasia is due to the acquisition of metal objects by individuals and communities re-inventing traditions of adornment, even in regions hundreds of kilometres from the nearest sources of native metals or ores. The movement of communities possessing metallurgical expertise to new ore sources and into supportive societies led to the gradual transmission of metallurgy across the Eurasian landmass. By the second millennium BC, metallurgy had spread across Eurasia, becoming firmly rooted in virtually all inhabitable ...
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How is Fellow of the Australasian Institute of Mining and Metallurgy abbreviated? FAIMM stands for Fellow of the Australasian Institute of Mining and Metallurgy. FAIMM is defined as Fellow of the Australasian Institute of Mining and Metallurgy very rarely.
Welding Inspection and Metallurgy. Welding Inspection and Metallurgy. Appendix A Terminology and Symbols We will defer the NDE and Metallurgy coverage for now and stay with the welding topics from RP-571. Appendix A consists of 5 pages of graphics. The topics are; A.1 Weld Joint Types Slideshow 6874965 by jaime-mcdowell
The blast furnace slag and the wet or dry charge may be injected into the feed end of the rotary kiln as separate materials or may be injected together without premixing at the feed end of the kiln.. Fifth, only slight chemical composition changes in the feedstock composition are required for normal feedstock to accommodate the blast furnace slag. This usually means that the lime content of the charge must be richer.. Sixth, the coarse blast furnace slag chemistry is transformed into the desired cement clinker structure during heat treatment in a rotary kiln by diffusion.. Seventh, significant energy savings are realized when the blast furnace slag is used because the blast furnace slag melts at low temperatures and does not require any grinding or milling of the blast furnace slag.. Eighth, the increase in cement clinker formation is almost proportional to the amount of blast furnace slag used.. Ninth, the environmental conditions of the rotary kiln process are improved due to the low volatile ...
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The invention discloses a high-temperature-resistant wear-resistant powder metallurgy valve seat ring material which comprises the following raw materials: C. the valve seat ring material is processed by S, Co, Cr, Mo, Ni, N, V, W, Ca, Si, F, Mn, Cu and Fe, and comprises a matrix structure, first hard particles, second hard particles, a solid lubricant, copper infiltration powder and inevitable impurities; the matrix structure is martensite distributed with spherical carbides, and the first hard particles and the second hard particles are dispersed in the matrix structure at different hardness; the first hard particles are ceramic phase vanadium nitride particles with the mass fraction of 5-15%, and the second hard particles are Co-based alloy particles with the mass fraction of 35-60%, calculated by mass fraction of the total proportion of the valve seat ring material. The valve seat ring material can effectively improve the high-temperature resistance and wear resistance of the powder metallurgy
What is powder metallurgy? Powder metallurgy is a metal-forming process performed by heating compacted metal powders to just below their melting points. It encompasses conventional press-and-sinter technology, metal injection molding, isostatic pressing, metal additive manufacturing (metal 3D printing), and powder forging.
Iran University of Science and Technology was originally founded in 1929 as the first Iranian institution to train engineers. Located in Tehran, it consists of 14 departments, and has two branches in Arak and Behshahr. Web site offers information about admission, news, and conferences. The Department of Metallurgy & Materials Engineering was originally established in Tehran Institute of Technology (TIT) at 1957, under the title of group of metals melting and casting. In the very early days a four year intensive curriculum in metal melting and casting was offered by TIT, leading to M.Eng. degree. In 1961 the institute stopped offering intensive M.Eng. programme, while initiated the offering of anndergraduate course leading to B.Eng. degree. In 1970, due to development of educational programmes, TIT was renamed to Iran College of Science & Technology, ICST, within which the department of metallurgy was established offering a metallurgical engineering degree with two emphasis on casting and extractive
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The aim of this study was to assess the environmental effects of Moshyttan, one of the earliest known blast furnaces in Europe (ca. 11th century). The study was based on the analysis of three lake records in the immediate surroundings of the smelter. Fickeln lies directly downstream and is the main recipient of waterborne pollution. Mosjökälla lies directly upstream and served as the main water reservoir for the water-powered bellows. Kramptjärnen lies 1 km to the NW in a separate catchment and acts as a reference. The data includes 31 elements analyzed by X-ray fluorescence spectroscopy (XRF), organic content inferred from loss on ignition (LOI), biogenic silica (BSi) modeled from Fourier-transform infrared spectroscopy (FT-IRS) for all lakes and diatom counts for Fickeln. Two other studies provided dating of slag from the smelter and pollen- and geochemical data from Fickeln. The results show that the metallurgy and associated activities (e.g. agriculture, forest grazing and charcoal ...
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An electronic device may include an electronic substrate, and an under bump seed metallurgy layer on the electronic substrate. A barrier layer may be provided on the under bump seed metallurgy layer so that the under bump seed metallurgy layer is between the barrier layer and the electronic substrate, and the barrier layer may include nickel and/or copper. Moreover, portions of the under bump seed metallurgy layer may be undercut relative to portions of the barrier layer. In addition, a solder layer may be provided on the barrier layer so that the barrier layer is between the solder layer and the under bump seed metallurgy layer.
OXYGEN ACTIVITY MEASUREMENTS, 978-3-639-15398-9, Ghislain Tshilombo holds a masters degree in metallurgy from the University of Pretoria (2006) and Bachelor degree in metallurgy from the University of Lubumbashi in DRC (1999). He joined CSIR in 2007 as researcher in Materials Science and Manufacturer where he conducts research in extractive metallurgy. Currently, he is working on titanium project. He was Lecturer at the Chemical and Metallurgical department of Tshwane University of Technology (TUT) from 2004 to 2007. He worked as Engineer in training from 2000 to 2001 in DRCongo. He conducted some researches in various field of extractive metallurgy: hydrometallurgy, mineral processing and pyrometallurgy and produced some related articles in referred journal. He is Member of the Southern African Institute of Mining and Metallurgy.
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The powder metallurgy process provides a host of advantages over competing metalworking technologies. These all add up to part-to-part uniformity for improved product quality, shape and material flexibility, application versatility, and cost effectiveness.
TY - JOUR. T1 - A comparative study of pellets, sinter and mixed ferrous burden behaviour under simulated blast furnace conditions. AU - Gavel, Dharm Jeet. AU - Adema, Allert. AU - van der Stel, Jan. AU - Peeters, Tim. AU - Sietsma, Jilt. AU - Boom, Rob. AU - Yang, Yongxiang. PY - 2020. Y1 - 2020. N2 - Physicochemical behaviour of the pellets, sinters and its mixture (60% pellets: 40% sinter) is investigated by a series of smelting and quenching experiments. For all ferrous raw-material beds, three distinct stages of bed shrinkage occur due to indirect reduction, softening and melting. However, the characteristic nature (displacement, temperature and permeability) differ with the ferrous raw-material type. In mixed ferrous bed, the first and third stages are found to be controlled by the pellets (individual particle shrinkage) and sinter (slow melting rate), respectively. Second stage behaviour is initially observed to be close to the pellet and later to that of sinter. In mixed bed (upto ...
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The aim of this work is to study the effect of halide treatment in powder metallurgy Ti-6Al-4V alloy, in order to improve high temperature oxidation and electrochemical corrosion resistance. Halide treatment was performed by immersing samples in a powder mixtu The aim of this work is to study the effect of halide treatment in powder metallurgy Ti-6Al-4V alloy, in order to improve high temperature oxidation and electrochemical corrosion resistance. Halide treatment was performed by immersing samples in a powder mixture containing 3 wt% NH4Cl, at 200 degrees C and 950 degrees C. Oxidation resistance was assessed by exposure to 600 degrees C for 300 h. The microstructure and phase constitution of the formed oxide layers was characterized. Corrosion resistance in aircraft simulated environment was evaluated with electrochemical impedance spectroscopy. Notable improvement in oxidation and corrosion resistance was observed for samples treated at 200 degrees C. [+] [-] ...
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Pressure powder metallurgy process for consolidating refractory or rhenium alloys using a reduced temperature and elevated pressure. Rhenium metal has high temperature strength and wear resistance but has a very high melting point as a pure metal and thus is difficult to use as a coating for many alloys having lower melting points. The reduced temperature and elevated pressure alloying process of the rhenium allows it to be used as a coating for other metal alloys, such as nickel and steel alloys, providing some high temperature and wear resistance due to the properties of the rhenium material in the coating.
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Mr. Len Holland, of Holland & Holland Consultants, UK, will lead the 2018 metallurgical program. Mr. Holland is an experienced mineral processing engineer with considerable expertise in the recovery of metals from poly-metallic ores spanning several decades on deposits around the world. Most recently, he spearheaded the re-commissioning of Trevali Mining Corps Caribou polymetallic base metal deposit in New Brunswick. Mr. Holland currently consults with several different groups at various stages of projects, including, but not limited to, Glencore, SNC Lavalin UK (mining and metallurgy), and First Quantum Minerals.
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The main finding of this study was that exhaled NO concentrations in non-smoking potroom workers were 63% higher than in non-smoking control subjects recruited from the same plant. The two groups were otherwise comparable for occurrence of asthma-like symptoms and use of β2-agonists. No subject in either group used corticosteroids. The potroom workers were somewhat younger than the controls (mean age 40 v 46 years), but concentrations of exhaled NO have not been shown to vary with age.12 Although the exhaled NO concentration in the non-smoking potroom workers was not as high as that found in symptomatic asthmatic subjects, it was comparable to the concentration observed in atopic subjects with bronchial hyperresponsiveness.18 In smokers, we found no difference in exhaled NO between potroom workers and controls. This may be because chronic cigarette smoking itself decreases exhaled NO, both in healthy19 and in asthmatic subjects.20 In mildly asthmatic subjects, the effect of smoking on exhaled ...
OBJECTIVES: To determine whether occupational exposure to chromite, trivalent chromium, or hexavalent chromium causes respiratory diseases, an excess of respiratory symptoms, a decrease in pulmonary function, or signs of pneumoconiosis among workers in an integrated chain of stainless steel production. METHODS: This cross sectional study was carried out in 1993 and the inclusion criterion was a minimum of eight years of employment in the same production department. A self administered questionnaire was collected, and spirometry, measurement of diffusing capacity, chest radiography, and laboratory tests were carried out by a mobile research unit. RESULTS: There were 221 workers in the exposure groups and 95 in the control group. The average duration of employment was 18 years. No significant differences in the odds ratios (ORs) of the symptoms were found between the exposure and the control groups. In a logistic regression analysis age and smoking significantly explained the occurrence of most of ...
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About Bhilai Steel Plant. Eleven times winner of Prime Ministers Trophy for Best Integrated Steel Plant in the country, Bhilai Steel Plant (BSP) is Indias sole producer & supplier of world class rails for Indian Railways including 260 metre long rails, and a major producer of large variety of wide and heavy steel plates and structural steel. With an annual production capacity of 3.153 MT of saleable steel, the plant also specializes in other products such as wire rods and merchant products. The entire range of TMT products (Bars & Rods) produced by the Plant is of earthquake-resistant grade and superior quality. The plant also produces heavy structurals including channels and beams.. Since BSP is accredited with ISO 9001:2000 Quality Management System Standard, all saleable products of Plant come under the ISO umbrella. The Plants HR Deptt is also certified with ISO 9001:2000 QMS Standard. IS0:14001 has been awarded for Environment Management System in the Plant, Township and Dalli Mines. The ...
We reviewed specific chemical exposures and exposure assessment methods relating to published and unpublished epidemiological studies in the alumina and primary aluminium industry. Our focus was to review limitations in the current literature and make recommendations for future research. Although some of the exposures in the smelting of...
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At the end of last year, the Canadian-based multinational aluminium company Alcan announced that it would start construction of a R19.5 billion aluminium smelter at the Coega International Development Zone (IDZ) outside Port Elizabeth in the Eastern Cape in 2008. The factory, the fourth aluminium smelter in the region (after Bayside and Hillside, both in…
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BHP Billiton required a new unit Nitrogen Receiver vessel for its Kwinana Nickel Refinery.. Access Petrotec took up the challenge and delivered the fabricated and tested Autoclave in a record time of 5 months to BHP Billitons nominated freight forwarder in India ...
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There are many ways that businesses can improve on their bottom line, with the obvious things being astute financial management, better customer satisfaction and of course observing and remaining abreast of new trends.. So, what will be some of the new trends following the devastating impact of a pandemic that almost crippled business in 2020? Some are a direct result of the pandemic and some a result of on-going advancements in technology and improved business practices. Here are 4 ways the steel industry can do better business in 2021…. Cocooning has improved our virtual capabilities. The steel industry, like many others, can benefit from the lessons learned as a result of the pandemic. We have learned to operate virtually, saving money in many areas like transport costs, less administrative office space and even attending international virtual events online as opposed to travelling to them. The industry can benefit from maintaining many of these practices and the savings they ...
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OBJECTIVES: To determine whether exposure to five different occupational substances contributes to respiratory symptoms in aluminium smelter workers.. METHODS: A cross-sectional survey of 1,615 male employees of two Australian aluminium smelters was conducted in 1995. Subjects underwent spirometry and were asked about respiratory symptoms and the relationship of those symptoms to work. Their job histories were combined with a task exposure matrix to produce individual quantitative measures of cumulative exposure to fluoride, sulphur dioxide, inspirable dust, the benzene-soluble fraction of coal tar pitch volatiles (BSF), and oil mist.. RESULTS: After adjusting for smoking and age, we found that subjects with the highest cumulative exposure to fluoride (,0.16 mg/m(3) years) and inspirable dust (,2.9 mg/m(3) years) were two to four times more likely to report work-related wheeze and chest tightness than were unexposed subjects. Lower prevalence ratios for the same symptoms were seen with sulphur ...
ABSTRACT: This article summarizes an assessment of air sampling and analytical methods for both oil and water-based metalworking fluids (MWFs). Three hundred and seventy-four long-term area and personal airborne samples were collected at four plants using total (closed-face) aerosol samplers and thoracic samplers. A direct-reading device (DustTrak) was also used. The processes sampled include steel tube making, automotive component manufacturing, and small part manufacturing in a machine shop. The American Society for Testing and Materials (ASTM) Method PS42-97 of analysis was evaluated in the laboratory. This evaluation included sample recovery, determination of detection limits, and stability of samples during storage. Results of the laboratory validation showed (a) the sample recovery to be about 87%, (b) the detection limit to be 35 microg, and (c) sample stability during storage at room temperature to decline rapidly within a few days. To minimize sample loss, the samples should be stored ...
By Dr. Michael Berg, EMLab P&K Senior Molecular Biologist. Metalworking fluids (MWFs) are used in industrial machining and grinding operations to reduce heat and friction and to improve product quality. They are categorized into straight or neat oils, soluble oils, semi-synthetic and synthetic fluids. Generally, MWFs are complex mixtures containing a number of additives to improve performance and stability including emulsifiers, anti-weld agents, corrosion inhibitors, extreme pressure additives, buffers, dyes, odorants and biocides. In use, the fluid complexity is compounded by contamination with substances from the manufacturing process such as tramp oils, hydraulic fluids and particulates from grinding or machine operations. Furthermore, water-based MWFs may support microbial growth adding biological contaminants in the form of bacterial and fungal cells and their related byproducts such as endotoxins, exotoxins and mycotoxins. Each component of the complex mixture can contribute to health ...
Occupational exposure to nickel occurs mainly through inhalation of dust particles and fumes or through skin contact. Acute exposure to high levels of nickel by inhalation can cause severe damage to the lungs and kidneys. Prolonged exposure to nickel refinery dust among nickel refinery workers leads to an increased risk of lung and nasal cancers. Nickel refinery dust is a mixture including many nickel compounds as well as other inorganic substances. Nickel subsulfide is the major constituent in refinery dust from the smelting of sulfidic ores. Chronic dermal exposure to nickel can lead to dermatitis with complaints such as dry, irritated or itchy skin. Chronic inhalation exposure to metallic nickel and water-insoluble nickel compounds can result in respiratory effects, including decreased lung function and bronchitis. Chronic exposure to soluble nickel compounds by inhalation can also result in asthma cases.. Latency period between exposure and nickel related cancer varies from 13 to 24 ...
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OBJECTIVE: To examine the incidence of occupational asthma in the seven aluminum smelters of Australia and New Zealand from 1991 to 2006.. METHODS: Incidence and exposure data were collected by survey from the smelters prospectively during the study period.. RESULTS: The incidence of occupational asthma across all smelters combined was highest in 1992 at 9.46/1,000/year, declining to 0.36/1,000/year in 2006; a 96.2% reduction. The incidence of occupational asthma was correlated with geometric mean total fluoride concentration, measured as personal samples from employees undertaking anode changing (r(s) = 0.497, P , 0.001).. CONCLUSIONS: The control of exposures, respiratory protection and pre-placement medical assessments undertaken during the study period seem to have contributed to the substantial decline in occupational asthma incidence.. ...
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Rajkrupa Metal Industries have a wide range of specialized products. Without high-quality manufacturing, we are known widely as one of the top manufacturers of round Bar, Wire Mesh, Perforated Sheets, Titanium Vessels, Phosphor Bronze, Aluminium Bronze, Lead Gun Metal, Naval Brass, etc ...
Alloy development, downstream processing, microstructure and properties are core areas of the Norwegian expertise on light metals. The knowledge-dependent products made of light metals are part of a more sustainable and energy conserving future.. This MSc specialization is focused on the physical metallurgical aspects of light metals, in particular the aluminium alloys and their modern applications and recycling. It also includes related topics from applied mechanics, mechanical metallurgy, corrosion and modelling. Although emphasizing light metals, some coverage of modern offshore steels, composites and ceramics is included.. Candidates who have completed their study in this specialization: Physical metallurgy and downstream processing shall have:. ...
When physicist Francis Slakey decided to become the first person to climb the highest peak on every continent and surf every ocean, he never thought the challenge would cause him to reevaluate his approach to life and his career. But after encountering some unanticipated complications during his world travels, thats just what happened.. ...
The Department of Mining Engineering had its conception in the 1867 aims of the Illinois Industrial Universitys Committee on Courses and Faculty, which listed the department as part of the proposed Polytechnic Department. Courses in mining engineering were offered in the Civil Engineering Department during the 1870-75 period. In 1885, the University faculty adopted and approved a B.S. program. The program had its first graduate in June 1887. With little student interest, the program lapsed in 1889. An attempt was made two years later to revive interest by offering a course for coal miners. A lack of response caused the Department to be abolished in 1891. In 1901, the Board requested Illinois members of Congress to support a bill promoting mining engineering. In June, 1909, the Illinois General Assembly passed an act calling for a Department of Mining Engineering with provision for instruction and extension work by the University. In 1911, the Department began to work closely with the State ...
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Journal of Metallurgy is a peer-reviewed, Open Access journal that publishes original research articles as well as review articles in all areas of metallurgy.
Silicon slag is a by-product from the manufacture of silicon metal, it is a kind of mixture which contains the main content Silicon (45%~95%) and other components such as C, S, P, Al, Fe. It is a good substitute for FeSi in steel making, which has...
Mechel reported that supplies of 100-meter R65 DT-350 type rails to Russian Railways have begun. Mechels Chelyabinsk Metallurgical Plant has already shipped off the first 12,000-tonne batch to Russian Railways. Chelyabinsk Metallurgical Plant supplies rails as part of a supplementary agreement to the 2008 strategic contract between the two companies. In 2016 supplies are due to amount to 150,000 tonnes. In particular, Russian Railways will use those rails for construction and reconstruction of North Caucasian and Kuibyshev railroads.. The rails are fully in compliance with Russian Railways requirements and were produced according to the certificate granted to Chelyabinsk Metallurgical Plant by Federal Railway Transport Certification Register in June 2015.. Today prompt fulfillment of Russian Railways order is an absolute priority for Chelyabinsk Metallurgical Plant, Mechels Chief Executive Officer Oleg Korzhov noted. The technology mastered by the plant enables it to produce rails whose ...
Malathi, M and Adekunle, Adeleke and Odusote, J K and Ikubannia, P P and Lasode, O A and Paswan, Dayanand (2020) The Ignitability, Fuel ratio and Ash Fusion Temperatures of Torrefied Woody Biomass. Heliyon, 6/3 (IF-1.65). e03582.. Meshram, Pratima and Sahu, S K and Sinha, Manish K and Khan, Pritam and Pandey, B D and Mankhand, T R (2010) Solvothermal synthesis of high value copper powder from Copper bleed solution. In: NMD - ATM 2010, 14-16th November 2010, National Science Seminar Complex, Indian Institute of Science, Bangalore.. Meshram, Pratima and Abhilash, (2019) Battery Recycling- Charged with Huge Potential. Material Recycling , 5(2) . pp. 20-22.. Meshram, Pratima and Abhilash, and Pandey, B D (2019) Global Outlook on the Availability of Critical Metals and Recycling Prospects from Rechargeable Batteries. In: Critical and Rare Earth Elements. CRC Press, Boca Raton, US, pp. 37-58. ISBN 978-0367086473. Meshram, Pratima and Abhilash, and Pandey, B D and Mankhand, T R and Deveci, Haci (2018) ...
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Journal of Metallurgy is a peer-reviewed, Open Access journal that publishes original research articles as well as review articles in all areas of metallurgy.
Considering that the scientific research activity is of special importance for the overall development of the Republic of Serbia, that is based on knowledge, and is the main factor and driving force of economic and social development, the commitment of the Mining and Metallurgy Institute Bor is a further continuation and encouragement of this development, with the highest use of new knowledge and technologies, using the personnel, technological and natural advantages and mechanisms, in order to ensure a competitiveness in domestic, regional and international frameworks.. A commitment of the Mining and Metallurgy Institute to the scientific-research work, research and development arising from the current achieved degree of economic, social, scientific and technological development, as well as from the changes occurred in the past years in the Balkans and the Republic of Serbia, changed the economic and systematic conditions, and with the emphasized transition of economy to the market conditions ...
The main target includes the ridge where steeply dipping Ordovician age quartzite is exposed over a strike length of approximately 850 meters. Geological mapping, geochemical sampling, and surveying identified a series of white quartzite outcroppings (Wonah Quartzite Formation) that form 2 lenses, the Central Zone that has been traced for approximately 500 m, and South Zone traced for 350 m along strike. The Central and South Zones consist of a highly competent quartzite unit that trends N to NNE, is approximately 50 meters in width, and has a steep east dip. There is an ESE trending fault between the Central and South Quartzite Zones that has an approximate 200 m sinstral, horizontal displacement. A total of 11 rock chip quartzite samples were taken from the Central & South Zones by MGX VP Exploration Andris Kikauka (P. Geo.) shortly after acquisition in 2015. Rock chip samples were analyzed by ALS Minerals, North Vancouver, BC, using Li Borate fusion, whole rock analysis ME-XRF-06 (XRF26), ...
Phase transitions in functional materials My research focuses on phase transitions in functional materials whose thermal, structural, magnetic and electrical properties display strong coupling. These materials include multiferroics, and offer plenty of scope for interesting science and useful applications.
Tartaglia proceeded by cutting the trajectory of the cannonballs into different portions and then identifying them with the two different sorts of motion his conceptual apparatus was able to provide. The theory of ballistics that emerged from this operation was basically an analysis of the portion of the trajectory that was associated with violent motion. On the basis of this procedure, Tartaglia was able to draw quantitative consequences not only concerning the maximal range, but also concerning the variation in the destructive power of cannon shots in dependence on the distance between target and cannon, and on the elevation of the artillery.. The tests executed by means of cannons, around which Tartaglia narrates in his work, merely symbolize the background against which the new science of ballistics emerged. Clearly, and as it has already been stated by several scholars, the background knowledge involved in the process of emergence of the theoretical ballistics was represented by the ...
... chemistry and metallurgy, mines, as required by entrepreneurs in Northern France. The third year of the curriculum provided ... Metallurgy. - Preparation of different ores by machines and hand-dressing previous to putting into furnace. Manufacture of Iron ...
"Metallurgy". MQes Uranium Inc. Retrieved 2 June 2012. Betke, Ulf; Wickleder, Mathias S. (2012). "Oleum and Sulfuric Acid as ...
ISBN 978-8-44-905585-0. Muhly, James (1999). "Metallurgy". In Bard, Kathryn A.; Blake Shubert, Steven (eds.). Encyclopedia of ...
On that decade arrive in the municipality Industries from different sectors: electricity; metallurgy; plastics; food; rubber; ...
Montero-Ruis, I. and Perea, A. (2007). "Brasses in the early metallurgy of the Iberian Peninsula". In La Niece, S., Hook, D., ... "Gunmetal , metallurgy". Encyclopedia Britannica. Retrieved 26 May 2020. "What is Naval Brass?". National Bronze Manufacturing. ... Bachmann, H. (1976). "Crucibles from a Roman Settlement in Germany". Journal of the Historical Metallurgy Society. 10 (1): 34-5 ... Metallurgy in Numismatics 1 pp. 83-98 Day 1990, pp. 123-150 Day 1990, pp. 124-133 Noel Stratford, pp. 232, 245, in Zarnecki, ...
Chemistry, properly said, (Pyrotechnics, Dyeing, etc.). Metallurgy. Alchemy. Natural Magic. Imagination. Poetry. Sacred, ...
Among the topics that he has studied are: ancient trade; metallurgy; pottery production and provenance; scientific applications ...
In the field of extractive metallurgy, mineral processing, also known as ore dressing, is the process of separating ... Geometallurgy is a branch of extractive metallurgy that combines mineral processing with the geologic sciences. This includes ... Lowrie, Raymond L; Society for Mining, Metallurgy and Exploration (2002), SME mining reference handbook, Society for Mining, ... Ball mill Dartmoor tin-mining Science of Flotation Rocker box "mineral processing , metallurgy , Britannica". www.britannica. ...
Metallurgy. Fuchs, Leonhart. De Historia Stirpium Commentarii Insignes. Basel, 1542. Botany. Copernicus, Nicolaus. De ...
Metallurgy. In the west side of the county there are mines for extracting coal and bauxite. Crude oil is also extracted. The ...
ISBN 978-0-19-815034-3. Muhly, James (1999). "Metallurgy". In Bard, Kathryn A.; Blake Shubert, Steven (eds.). Encyclopedia of ...
26, pp 1083-1087 Rehren Th., 2003, Crucibles as Reaction Vessels in Ancient Metallurgy, Ed in P. Craddock & J. Lang, Mining and ... 36, pp2700-2712 Hauptmann A., 2003, Developments in copper Metallurgy During the Fourth and Third Millennia B.C. at Feinan, ... Hessian crucible Micro-pulling-down Ladle (metallurgy) Wax melter Percy, John. Natural Refractory Materials Employed in the ... Development of Metallurgy in Eurasia, Antiquity Vol. 83 pp 1012-1022 Scheel B., 1989, Egyptian Metalworking and Tools, Shire ...
King, P. W. (2002). "Dud Dudley's contribution to metallurgy". Historical Metallurgy. 36 (1): 43-53. A. W. Skempton et al., ... It is not clear where he obtained his knowledge of metallurgy, but it is possible that Dud Dudley was his teacher; certainly, ... P. W. King, 'Sir Clement Clerke and the Adoption of Coal in metallurgy' Trans. Newcomen Soc. 73(1) (2001-2), 33-52. Leigh ...
He is the author or co-author of more than 650 published papers in the field of metallurgy and several books. In the 90s, he ... In 2022 he joined Queen Mary University of London as Professor of Metallurgy. Bhadeshia was born in Kenya to Indian parents, ... Bhadeshia has developed a wide range of freely accessible teaching materials on metallurgy and associated subjects. The subject ... During 2005-2018, as the Founding Director of the Computational Metallurgy Laboratory, he helped create the Graduate Institute ...
Tylecote, R.F. (1992) A history of metallurgy 2nd ed., Institute of Materials, London. pp. 95-99 and 102-105. ISBN 0-901462-88- ... Wayman, M.L. & Juleff, G. (1999). "Crucible Steelmaking in Sri Lanka". Historical Metallurgy. 33 (1): 26. Hartwell, Robert ( ... Department of Metallurgy, Indian Institute of Science. ISBN 0-85115-355-0. Archived from the original on 2018-11-19. Akanuma, H ... the pioneering precursor to modern steel production and metallurgy. The Chinese of the Warring States period (403-221 BC) had ...
Dieter, G. E. (2013). Mechanical Metallurgy. McGraw-Hill. ISBN 978-1259064791. Little, R.E.; Jebe, E.H. (1975). Statistical ...
The company produces mining equipment; metallurgy equipment; rolling mills, forges, blast furnaces, ore crushers, presses, and ...
Dieter, George E. (1988). Mechanical Metallurgy. McGraw Hill Book Company. pp. 236, 237. ISBN 0-07-084187-X. v t e (Articles ...
Although the dominant use of iron is in metallurgy, iron compounds are also pervasive in industry. Iron catalysts are ... Recent developments in ferrous metallurgy have produced a growing range of microalloyed steels, also termed 'HSLA' or high- ... 1-93 Weeks, p. 33, quoting Cline, Walter (1937) "Mining and Metallurgy in Negro Africa," George Banta Publishing Co., Menasha, ... Wagner, Donald B. (2003). "Chinese blast furnaces from the 10th to the 14th century" (PDF). Historical Metallurgy. 37 (1): 25- ...
However, as properties such as brittleness of mild steel improved with better ferrous metallurgy and as steel became less ... A. den Ouden, 'The production of wrought iron in Finery Hearths' Historical Metallurgy 15(2) (1981), 63-87 and 16(1) (1982), 29 ... ISBN 978-1-898563-11-2. Campbell, Flake C. (2008). Elements of Metallurgy and Engineering Alloys. ASM International. p. 154. ... Hayman, R. (2004). "The Cranage brothers and eighteenth-century forge technology". Historical Metallurgy. No. 2 (28th ed.). pp ...
ISBN 978-81-208-2087-6. Dube, R. K. (1990). "Aspects of Powder Technology in Ancient and Medieval India". Powder Metallurgy. 33 ...
Andrews, Phil (2016). "Crucible steel production at Derwentcote Forge, County Durham". Historical Metallurgy. 50 (1): 53-66. ...
Field pilot scale application". Process Metallurgy. 9: 645-654. doi:10.1016/S1572-4409(99)80154-0. ISBN 9780444501936. "Risks ...
Metallurgy MSc. Mineralogy MSc. Paleontology and Stratigraphy MSc. Petrology MSc. Quaternary Geology Wrocław University of ...
ISBN 0-521-49827-9. Dieter, G. E. (3 ed.). (1989). Mechanical Metallurgy. New York: McGraw-Hill. ISBN 0-07-100406-8. Holtz, ...
Historical Metallurgy. 38 (1): 47-59. Curzon, William (1883). The Manufacturing Industries of Worcestershire. Birmingham. pp. ...
Upadhyaya, G. S. (2016). "A Brief History of Major Powder Metallurgy Research Centres". Powder Metallurgy. 59 (1): 2-8. doi: ... In addition he is known as a major expert in powder metallurgy. He is the inventor of a technique for measuring metal corrosion ... Metallurgy and Petroleum and the Japan Society for the Promotion of Science. In 2009 he was awarded the title of Distinguished ...
Powder Metallurgy. 56 (3): 184-188. doi:10.1179/1743290113Y.0000000058. Journal of Petroleum Technology. "Legends of Drilling ...
metallurgy (mĕt´əlûr´jē), science and technology of metals [1] and their alloys [2]. ... Metallurgy Fundamentals. Chicago: Goodheart-Wilcox, 2004.. Hosford, W.F. Physical Metallurgy. Boca Raton, FL: CRC Press, 2005. ... Metallurgy. Metallurgy is the science and technology of metals. As indicated in Table 1, the recorded history of metal working ... Powder metallurgy. In powder metallurgy, articles are produced by agglomeration of fine metallic powder. This technique is used ...
metallurgy. Actions Cite verifiedCite While every effort has been made to follow citation style rules, there may be some ...
Purchase Metallurgy of Welding - 6th Edition. Print Book & E-Book. ISBN 9781855734289, 9781845694869 ... Metallurgy of Welding. Holiday Sale. :. Save up to 25% on print and eBooks with FREE shipping. No promo code needed. More ... Undergraduate students studying metallurgy and welding, engineers, metallurgists, and welding technologists. Table of Contents ... It is intended for undergraduate and graduate students of metallurgy, as well as those attending specialist welding courses.It ...
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Metallurgy then seemed aimed toward copper and copper alloys.. "Its very curious. You normally associate metals and ... The scientists found the earliest evidence for metallurgy dated back to between 1000 and 1200 AD, after the fall of the Wari ... "Were hoping to really help reconstruct the history of metallurgy in the New World," Cooke said. They have so far collected ... "Its rather strange that the onset of metallurgy occurred just as the Wari Empire disappeared from the scene." ...
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He has run over 250 metallurgy courses for companies and colleges on various aspects of metallurgy and is an approved trainer ... He studied metallurgy at Imperial College and gained a PhD from the University of Sheffield looking at offshore corrosion ... Introduction to Oilfield Metallurgy. Specialist metallurgical training for those working in the oil and gas sectors. ... Oilfield metallurgy is a specialist sector involved in understanding the requirements and performance of materials used in the ...
... technology and metallurgy of steelmaking and casting as they apply to upstream and downstream processes and products. We shall ... Metallurgy - Steelmaking & Casting Technology Committee Activities. Bill Jones (left) and Sunday Abraham (right) presented. ... There was discussion of the AIST Road Show, and a suggestion was made to consider it for universities that have a metallurgy ... "Discussion on Thermo-Calc Process Metallurgy Module and TCOX Database," by Drew Huck, Carnegie Mellon University. ...
... was 638620 Euros. Discover more data with NationMaster! ... How does Finland rank in Sold Production of Products of Steel Powder Metallurgy?. #. 10 Countries. Euros. Last. YoY. 5‑years ... In 2019, the country was ranked number 9 among other countries in Sold Production of Products of Steel Powder Metallurgy with € ... Finland - Sold Production of Products of Steel Powder Metallurgy Euros - 1997 to 2019 ...
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Everyday Metallurgy is really more about everyday items than it is about metallurgy. How are the products we use every day ... Everyday Metallurgy is really more about everyday items than it is about metallurgy. How are the products we use every day ... Filled with images of everyday items and people using them, Everyday Metallurgy is an attractive coffee-table book that will ...
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The bi-metal metallurgy composite pipe welding method includes the steps that (1) an X-type groove is formed in an SS2205-X65 ... The invention discloses a bi-metal metallurgy composite pipe welding method. ... CN105252116A - Bi-metal metallurgy composite pipe welding method - Google Patents. Bi-metal metallurgy composite pipe welding ... The invention discloses a bi-metal metallurgy composite pipe welding method. The bi-metal metallurgy composite pipe welding ...
Indonesian Metallurgy. Prof. John Miksic has kindly granted the Archaeology Unit permission to disseminate an Indonesian ...
Metallurgy and Materials Science in Slovenia Conferences , Curated Calendar of Upcoming Scientific Conferences , Last updated: ... Conferences > Engineering > Metallurgy and Materials Science > Slovenia. Select a location. Australia (2) Belgium (2) Canada (1 ...
It is a powder metallurgy material that can be made into steel or parts. Stainless steel powder metallurgy is widely used in ... Stainless steel powder metallurgy is stainless steel manufactured by powder metallurgy. ... Stainless steel powder metallurgy is stainless steel manufactured by powder metallurgy. It is a powder metallurgy material that ... What are the advantages of stainless steel powder metallurgy?. 1. The corrosion resistance of stainless steel powder metallurgy ...
SAES have decades of experience and expertise in vacuum metallurgy (arc melting and vacuum induction melting) and powder ... A deep knowledge of fundamentals in physical metallurgy, the understanding of the principles behind the gettering mechanisms, ... metallurgy (milling technologies, sieving, powders classification and mixing, screen printing and sintering). In particular, by ...
Mining Engineering magazine Mining, Metallurgy & Exploration journal Tunneling & Underground Construction magazine OneMine ...
The syllabus section provides the course overview and information about course texts, attendance and assignments, and the schedule of lecture topics.
Dennis, W.H. (1963). Metallurgy: 1863-1963 (1st ed.). Routledge. https://doi.org/10.4324/9781315124414 ...
A surge toward low-or zero-carbon iron and steel production focuses on the use of hydrogen. ...
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School of Metallurgy and Materials. Request a prospectus. Order prospectus Our impact: find out about recent advances. Explore ... School of Metallurgy and Materials. Professor of Biomaterials. Contact details Telephone. (+44) (0) 121 414 5216. Email. a. ... School of Metallurgy and Materials. University of Birmingham. Edgbaston. Birmingham. B15 2TT. UK. ...
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Water treatment solutions for mining and metallurgy 16th September 2016. Louise Davis ...
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Future geo-metallurgy efforts would benefit from an assessment of lessons ignored, Wolfgan Baum says ... Geo-metallurgy, the most overused word in mining, lingers on without emphasising the heart and essence of geology and ... If modern ore characterisation had been used as part of an integrated geo-metallurgy program at many mine sites, there would ... For geo-metallurgy, labs are not everything - but they are an extremely important thing. ...
I am William Shack, Chairman of the Subcommittee on Materials and Metallurgy. Graham Wallis is Chairman of the Subcommittee on ... This is a joint meeting of the Advisory Committee on Reactor Safeguards, Subcommittees on Materials and Metallurgy, Thermal- ... Joint Meeting of the Subcommittees on Materials and Metallurgy, Thermal-Hydraulic Phenomena, and Reliability and Probabilistic ... COMMITTEE MEMBERS: WILLIAM J. SHACK, Chairman, Materials and Metallurgy Subcommittee COMMITTEE MEMBERS: (contd) GRAHAM B. ...
  • Geo-metallurgy, the most overused word in mining, lingers on without emphasising the heart and essence of geology and metallurgy, ie modern ore characterisation focused on processing and based on instrumental laboratory work. (im-mining.com)
  • Mining, Metallurgy and Minting in the Middle Ages. (steiner-verlag.de)
  • The first of four volumes, which examine non-ferrous precious and base metal mining, metallurgy and minting in the Middle Ages, encompasses the history of these activities during the years 425-1125. (steiner-verlag.de)
  • Recent progress in the study of early mining and metallurgy in the British Isles. (historicalmetallurgy.org)
  • The Mineral Processing Division is one of core divisions of Zijin Research Institute of Mining and Metallurgy /Xiamen Zijin Technology of Mining and Metallurgy Ltd., State Key Laboratory of Comprehensive Utilization of Low-Grade Refractory Gold Ores. (zijin-tech.com)
  • The use of geo-metallurgy further streamlines the mining process. (makeitmissoula.com)
  • Turkey's mining and metallurgy company Eti Bakir has selected global design firm Stantec to review and evaluate its mining facility in Siirt Province. (mining-technology.com)
  • Most occupational exposures occur in mining and metallurgy, steel foundries, welding, and other high-temperature processes using steel. (who.int)
  • Chemical or extractive metallurgy is concerned with the extraction of metals from ores and with the refining of metals. (encyclopedia.com)
  • The three main branches of this major are physical metallurgy, extractive metallurgy, and mineral processing. (scienceoxygen.com)
  • AIM offers a full range of marketing services in the field of ferrous and non-ferrous metallurgy, metallurgical raw materials and related industries. (aimarketing.info)
  • A metallurgical engineer is a specialized engineer who combines knowledge and skills in metallurgy, chemistry and materials processing to develop materials for a range of applications. (scienceoxygen.com)
  • In 2019, the country was ranked number 9 among other countries in Sold Production of Products of Steel Powder Metallurgy with €638,620. (nationmaster.com)
  • What are the Advantages of Stainless Steel Powder Metallurgy? (mis-asia.com)
  • What is stainless steel powder metallurgy? (mis-asia.com)
  • Stainless steel powder metallurgy is stainless steel manufactured by powder metallurgy. (mis-asia.com)
  • It is a powder metallurgy material that can be made into steel or parts. (mis-asia.com)
  • Stainless steel powder metallurgy is widely used in machinery, chemical industry, shipbuilding, automobile, instrumentation and other industries because it can save raw materials and energy consumption, and achieve low carbon, green and environmental protection. (mis-asia.com)
  • In choosing powder metallurgy stainless steel, besides paying attention to the general corrosion resistance of stainless steel, it is also necessary to pay attention to the local corrosion under specific conditions of use. (mis-asia.com)
  • Powder characteristics, sintered body density and sintering parameters determine the mechanical properties of powder metallurgy stainless steel. (mis-asia.com)
  • The common materials of stainless steel powder metallurgy are 304, 316, 420. (mis-asia.com)
  • 316 stainless steel powder metallurgy is non-magnetic, and Mo is added to make it corrosion resistant. (mis-asia.com)
  • SAES have decades of experience and expertise in vacuum metallurgy (arc melting and vacuum induction melting) and powder metallurgy (milling technologies, sieving, powders classification and mixing, screen printing and sintering). (saesgetters.com)
  • TWI has partnered with Airbus Defence and Space, Nammo Westcott Ltd, ESR Technology and the University of Birmingham on a new project to investigate the use of powder metallurgy (PM) for astrospace applications. (twi-global.com)
  • The 24-month project, titled 'Powder Metallurgy Based Materials for High Wear Resistance, High Hardness and High Temperature,' has a budget of €600,000. (twi-global.com)
  • The use of powder metallurgy will allow for complex shapes to be produced without extensive machining and with a reduction in material wastage. (twi-global.com)
  • Powder metallurgy should also provide cost-saving solutions with a shorter lead time as well as offering the opportunity to produce functionally graded materials with a variety of properties, such as a softer core surrounded by a harder functional surface. (twi-global.com)
  • You can find out more about powder metallurgy here , or contact us for more details. (twi-global.com)
  • The organisers of Brazil's 38th Senafor event, set to run from October 3-5, 2018 in Porto Alegre, Rio Grande do Sul, have announced that this year's event will include the 7th International Conference on Powder Metallurgy and 13th Meeting of Powder Metallurgy- Brazil. (pim-international.com)
  • Japan Powder Metallurgy Association (JPMA) and Japan Society of Powder & Powder Metallurgy (JSPM) have announced that. (pim-international.com)
  • New Jersey , N.J. , April 26, 2022 - The Automotive Powder Metallurgy Components Market research report provides all the information related to the industry. (bignewsnetwork.com)
  • This Automotive Powder Metallurgy Components market research report tracks all the recent developments and innovations in the market. (bignewsnetwork.com)
  • An analysis of the current market designs and other basic characteristics is provided in the Automotive Powder Metallurgy Components report. (bignewsnetwork.com)
  • The research report also mentions the innovations, new developments, marketing strategies, branding techniques, and products of the key participants present in the global Automotive Powder Metallurgy Components market. (bignewsnetwork.com)
  • In the end, this Automotive Powder Metallurgy Components report helps to save you time and money by delivering unbiased information under one roof. (bignewsnetwork.com)
  • The European Powder Metallurgy Association (EPMA) has launched its 2023 Powder Metallurgy Thesis Competition. (pm-review.com)
  • Quality to start with, Honesty as base, Sincere company and mutual profit" is our idea, as a way to build constantly and pursue the excellence for iron based powder metallurgy Southeast Asia and other regions. (asxqfap.com)
  • Zhejiang Zhongping Powder Metallurgy Co., Ltd.,established in 1997, is located in Shupu Huiyuan Road, Zhenhai District, Ningbo City, Zhejiang Province, covering an area of nearly 100 mu and a construction area of 40000 square meters. (zhongping.com)
  • Workshop_Workshop_Longkou Yatai Powder Metallurgy Co., Ltd. (lkfmyj.com)
  • Over the years, the Department has developed excellent expertise in the areas of Extractive and Physical Metallurgy, Manufacturing Processes, Mechanical Behaviour of Materials, Nano-Science and Technology, Modelling and Simulation, Surface Engineering, Powder Metallurgy and Environmental Degradation of Materials. (iitkgp.ac.in)
  • PSM Industries' Powder Metallurgy-value engineered solutions provide optimum performance at a low cost. (iqsdirectory.com)
  • The powder AlSi2 is often used in powder metallurgy and as brazing solder. (iberocruceros.com)
  • History of Metallurgy. (encyclopedia.com)
  • We're hoping to really help reconstruct the history of metallurgy in the New World," Cooke said. (livescience.com)
  • Everyday Metallurgy is really more about everyday items than it is about metallurgy. (industrialheating.com)
  • Filled with images of everyday items and people using them, Everyday Metallurgy is an attractive coffee-table book that will look great in your home, office or the company lobby. (industrialheating.com)
  • 1. The American company RETECH, of which you are president, is one of the leaders in vacuum metallurgy. (secowarwick.com)
  • 2020 was a strong year for Retech and the SECO/WARWICK vacuum metallurgy segment. (secowarwick.com)
  • Zirconium is widely applied in nuclear industry for production of claddings of nuclear fuel elements, as an alloying element in non-ferrous and special metallurgy, in production of thermal-resistant coatings in manufacturing of aviation and aerospace products, at power plants, in engineering ceramics, as well as in medicine. (tvel.ru)
  • The enterprise has mastered in production of calcium injection wire, which is widely used in ferrous metallurgy for extra-furnace steel processing. (tvel.ru)
  • Vanadium is a rare element used in ferrous metallurgy as an alloy additive in various types of steel. (who.int)
  • Continuous Casting Technology Committee (CCTC) chair Jim Gilmore (right) and Metallurgy - Steelmaking & Casting Technology Committee (MSCTC) chair Bryan Webler (left) presented a plaque of appreciation to Heath Brown (center) for hosting a tour of Nucor Steel Florida Inc. on 23 February 2022. (aist.org)
  • On September 27-29, 2022, the SECO/WARWICK Group will host the 3rd annual e-Seminar 4.2, the largest online event for the metal heat treatment and metallurgy industry. (secowarwick.com)
  • It is intended for undergraduate and graduate students of metallurgy, as well as those attending specialist welding courses.It is also a valuable source of reference for practising engineers and metallurgists concerned with joining processes. (elsevier.com)
  • A deep knowledge of fundamentals in physical metallurgy, the understanding of the principles behind the gettering mechanisms, the possibility to simulate binary and ternary phase diagrams and the modeling of solidification processes has become of utmost importance in the design and screening of new formulations for a quicker selection of suitable alloys. (saesgetters.com)
  • The optimization of processes in metallurgy or in the crystallization of semiconductor materials with regard to product quality and energy efficiency requires a profound understanding of the flow processes in the melts. (hzdr.de)
  • Liquid metal two-phase flows are of particular importance for many processes in metallurgy and metal casting. (hzdr.de)
  • Metallurgy is the science and technology of metals. (encyclopedia.com)
  • Physical metallurgy is concerned with the physical and mechanical properties of metals as affected by composition, mechanical working, and heat treatment. (encyclopedia.com)
  • By analzying metals in lake mud in the central Peruvian Andes, scientists have revealed the first evidence for pre-Colonial metallurgy there. (livescience.com)
  • One of the key areas is the Metallurgy, which goal is to meet the demand for products made of metals and special alloys on both Russian and international markets. (tvel.ru)
  • Since 2012, the Industrial Metallurgy Center, a modern production facility of full cycle from hydrometallurgy to rolling mills, has been successfully developing and producing a wide range of products from refractory, light metals, their alloys, including those in the form of rolled bars with high-precision geometry and advanced surface quality. (tvel.ru)
  • Metallurgy is the first step in the production of high-quality metals - and perhaps the most important. (sms-group.com)
  • Metallurgy is defined as a process that is used for the extraction of metals in their pure form. (scienceoxygen.com)
  • While chemical metallurgy involves the domain of reduction/oxidation of metals, physical metallurgy deals mainly with mechanical and magnetic/electric/thermal properties of metals - treated by the discipline of solid state physics. (scienceoxygen.com)
  • Process metallurgy has always thrived only as new milestones in inorganic chemistry have been reached in metals technology. (scienceoxygen.com)
  • Metallurgy is the technology of metals, and the way in which science is applied to producing metal components. (scienceoxygen.com)
  • Oilfield metallurgy is a specialist sector involved in understanding the requirements and performance of materials used in the challenging environments of the oil and gas sector. (iom3.org)
  • William J. Shack, Chairman of the Materials and Metallurgy Subcommittee, presiding. (nrc.gov)
  • This is a joint meeting of the Advisory Committee on Reactor Safeguards, Subcommittees on Materials and Metallurgy, Thermal-Hydraulic Phenomena, and Reliability and Probabilistic Risk Assessment. (nrc.gov)
  • Welcome to the new website of Department of Materials and Metallurgy (OMM) at Faculty of Natural Sciences and Engineering (NTF). (uni-lj.si)
  • At the Department of Materials and Metallurgy, within the project of Internationalization of the University of Ljubljana, a new promotional brochure was released. (uni-lj.si)
  • Metallurgy is a domain of materials science and engineering that studies the physical and chemical behavior of metallic elements, their inter-metallic compounds, and their mixtures, which are known as alloys. (scienceoxygen.com)
  • Developments in early metallurgy have often been seenas innovative responses to fluctuations in the availability of raw materials. (historicalmetallurgy.org)
  • We are proud that our Department is among the very few Institutes of excellence in India that stills embraces the classical metallurgy like iron and steel research along with advanced materials, which is the need of the nation today. (iitkgp.ac.in)
  • We continue to review some of the most important materials in heat treatment and metallurgy. (industrialheating.com)
  • He studied metallurgy at Imperial College and gained a PhD from the University of Sheffield looking at offshore corrosion fatigue. (iom3.org)
  • He also had responsibility for the material selection and corrosion prevention for topside and subsea projects and for the metallurgy and welding of equipment including wellheads, BOPs, flowlines, choke valves, risers, manifolds, Christmas trees and associated items. (iom3.org)
  • Recognize fundamental principles related to welding metallurgy. (trcc.edu)
  • Applications in metallurgy, medical device manufacturing and material science industries use high-temperature ovens for this process. (terrauniversal.com)
  • The highest potential exposure occurs in the metallurgy and tanning industries, where workers may be exposed to high air concentrations. (cdc.gov)
  • forum330 - Professional forum and technical support for engineers for Metal and Metallurgy engineering. (eng-tips.com)
  • The scientists found the earliest evidence for metallurgy dated back to between 1000 and 1200 AD, after the fall of the Wari but well before the rise of the Inca. (livescience.com)
  • Norway's Pollution Control Authority (SFT) is planning further reductions in mercury and other heavy metal discharges by conducting an investigation into current emissions at 33 metallurgy plants. (edie.net)
  • Cyanide salts are used in metallurgy for electroplating, metal cleaning, and removing gold from its ore. (cdc.gov)
  • Physical metallurgy deals with problem solving: you'll develop the sorts of metallic alloys needed for different types of manufacturing and construction. (scienceoxygen.com)
  • What is the difference between physical metallurgy and metallurgy? (scienceoxygen.com)
  • Advanced Characterization Techniques by Dr. Krishanu Biswas, Prof.N.P.Gurao, Department of Metallurgy and Material Science, IIT Kanpur. (freevideolectures.com)
  • Department of Matrials and Metallurgy is one of four departments of the Faculty of Natural Sciences and Engineering. (uni-lj.si)
  • Metallurgy Engineering is not very easy but not difficult also if you've put in some efforts. (scienceoxygen.com)
  • Is metallurgy engineering a good career? (scienceoxygen.com)
  • Derek Denlinger, one of our metallurgists, explains what happens to the part's microstructure during decarburization…and discusses how Paulo prevents this from happening in this installment of our Metallurgy Minute. (paulo.com)
  • It is used in the manufacture of chemicals, in metallurgy, and as an analytical reagent. (bvsalud.org)
  • For instance, a large rise in zinc and copper levels relative to lead concentrations suggest copper smelting, while increases in lead, antimony and bismuth hint at silver metallurgy. (livescience.com)
  • Metallurgy then seemed aimed toward copper and copper alloys. (livescience.com)
  • Ideas and technology concerning metallurgy might have spread after these collapses, but it's still a mystery of where metallurgy came from here," Cooke said. (livescience.com)
  • Receive in-depth case studies, articles, maintenance tips, or the latest heat-treatment and metallurgy news for free! (secowarwick.com)
  • For geo-metallurgy, labs are not everything - but they are an extremely important thing. (im-mining.com)
  • Dan Herring is president of THE HERRING GROUP Inc., which specializes in consulting services (heat treatment and metallurgy) and technical services (industrial education/training and process/equipment assistance). (industrialheating.com)