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PRECIPITATION BEHAVIOR IN A Cu-Sn-Ni-Zn-P LEAD FRAME MATERIAL M.Nemoto1,C.K.Yan2,W.H.Tian3 (1.Sasebo National College of Technology, Okishin 1-1, Sasebo 857-1193, Japan;2.Institute of Metal... electron microscopy (TEM) observations were carried out for examining the precipitation behavior in a Cu-Sn-Ni-Zn-P lead frame material. TEM observations revealed that the precipitate is hexagonal......
Behavior of silver and lead in selective chlorination leaching process of gold-antimony alloy LIU Wei-feng(刘伟锋), YANG Tian-zu(杨天足), XIA Xing(夏 星) School of Metallurgical Science...; Abstract: The behavior of silver and lead in the selective chlorination leaching process of gold-antimony......
Researches on Mischmetal Preventing Lead Segregation in High Lead Bronze李道韫,徐连棠,战松江,付念新摘 要:<正> The effect of mischmetal addition on lead segregation in high lead bronze(grade ZQPb25-5)is studied inthis paper.The testing results confirm that 0.5 to 1.0% misehmetal addition can effectively prevent lead fromgravity and inverse segregation.The results......
Behavior, distribution and environmental influence of arsenic in a typical lead smelterCHAI Li-yuan(柴立元)1, 2, SHI Mei-qing(史美清)1, LIANG Yan-jie(梁彦杰)1, TANG Jing-wen(汤景文)1, LI Qing-zhu(李青竹)1, 2(1... University), Changsha 410083, China)Abstract:A field study was conducted to determine the behavior and distribution of arsenic during the pyrometallurgy process in a typical SKS (Shuikoushan) lead......
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Assessment of heavy metal pollution in sediments from Xiangjiang River (China) using sequential extraction and lead isotope analysisJIANG Bo-feng(蒋博峰)1, 2, SUN Wei-ling(孙卫玲)1, 2(1. Key Laboratory... of anthropogenic Pb in these four fractions.Key words:sediment; heavy metals; sequential extraction; lead isotope......
Preparation of pure SbCl3 from lead anode slime bearing high antimony and low silver CAO Hua-zhen(曹华珍) 1, CHEN Jin-zhong (陈进中)2, YUAN Hai-jun(袁海军)1, ZHENG Guo-qu(郑国渠)1 1. College of Chemical... December 2009; accepted 23 April 2010 Abstract: A novel treatment process of lead anode slime bearing high antimony and low silver was developed by a potential-controlled chloridization leaching......
Two-echelon inventory model with service level constraint and controllable lead time sensitive to order quantityLI Guo(李果)1, GUAN Xu(关旭)2, LIU Meng-qi(刘梦麒)3, SHAN Mi-yuan(单汩源)3(1. School... University, Changsha 410082, China)Abstract:The decision-making and optimization of two-echelon inventory coordination were analyzed with service level constraint and controllable lead time sensitive......
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