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铝箔轧机轧制油系统改造李永军商丘金汇铝电股份有限公司铝加工项目部摘 要:通过对SIEMENS VAI(以下简称S-VAI)2150 mm铝箔轧机轧制油系统研究,结合上海神火铝箔有限公司的实际使用情况,从保证系统工作稳定性方面,分析铝箔轧机轧制油系统在设计上存在的不足,提出并实施了改造方案.关键词:铝箔轧机;轧制油系统;设计;改造;......
-quenching and cold rolling with 80% reduction, the alloy exhibited excellent resistance to recrystallization softening. The hardness and electrical conductivity of Cu-Fe-P alloy under different.... The conductivity decreased during cold rolling, especially for the pre-aged specimens, because the fine precipitates with the size smaller than 5 nm re-dissolved easily into the matrix. A Cu-Fe-P alloy......
Effect of Boron and Cerium on Microstructures and Properties of Cu-Fe-P Alloy Liu Yong1,Sun Baode1,Lu Deping1,Lu Lei2,Xie Shifang2,Wang Jun1 (1.State Key Laboratory of Metal Matrix Composite... of removing S, Pb, and Bi from copper alloys; on the other hand, the recrystallization temperature of the Cu-Fe-P alloy is considerably increased by adding trace B and Ce, resulting in the combined......
引线框架铜合金精轧薄板表面起皮剥落的数值分析 董企铭1,李贺军2,苏娟华2,康布熙1,刘平1 (1.河南科技大学,材料学院,河南,洛阳,471003;2.西北工业大学,材料学院,陕西,西安,710072) 摘要:运用弹塑性有限元方法的平面应变分析模型,依据引线框架Cu-Fe-P合金精轧后表面起皮剥落处的显微组织特征,研究了Cu基体和Fe相颗粒界面附近的应力应变场分布.研究表明:铜基体与铁相的塑性行为及应力应变分布具有明显的不均匀性,界面区强烈的应力集中易造成界面开裂;精轧前Fe相周围的微裂纹在精轧变形时将进一步发展,直至发生引线框架板材表面起皮剥落破坏.应避免热轧板坯中出现较大Fe颗粒. 关键词:数值分析; 应力应变; Cu-Fe-P合金; 精轧; 皮剥落; [全文内容正在添加中] ......
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The Strengthening of Cu-15Ni-8Sn Alloy WANG Ming-Pu1,WANG Yan-hui1,HONG Bin1 (1.School of Material Science and Engineering, Central South University, Changsha China) 摘要:The microstructure, property and relation between them of Cu-15Ni-8Sn alloy are studied by means of TEM and the measurement of hardness. The results show that γ '' metastable phase strengthens alloy because of its ordering......
because they possess excellent combination properties. Four alloy systems (Cu-Fe-P[1-2], Cu-Ni-Si [3-4], Cu-Cr-Zr[5] and Cu-Ag) share about 80% of the market for metal lead frames. Among the 77 brands of copper alloys in use for lead frames, Cu-Fe-P alloys make up about 65% of the market[6-7]. C194, which belongs to the Cu-Fe-P alloy system, is a moderate strength and conductivity alloy......
The Technological Improvements of Aluminum Alloy Coloring by Electrolysis LI Nai-jun1 (1.Teachers College, Shenyang University, Shenyang 110015, P. R. China) 摘要:The technological process of coloring golden-tawny on aluminum alloy by electrolysis was improved in this paper. The optimum composition of electrolyte was found, the conditions of deposition and anodic oxidation by electrolysis were......
Microstructure and Performances of Nanocrystalline Zinc-nickel Alloy Coatings LI Guang-yu1,NIU Li-yuan1,JIANG Zhong-hao1,LIAN Jian-she1 (1.The Key Lab of Automobile Materials, Ministry of Education, China, College of Materials Science and Engineering, Jilin University, Nanling Campus, Changchun, 130025, China) 摘要:Nanocrystalline zinc-nickel alloy coatings were deposited from an alkaline......
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