摘要
铝电解用连接导杆是连接阳极和电源的关键部件,在高温电解条件下起承载阳极的作用和承担大电流导通的任务,其原材料必须是导电的、有一定强度和高致密度的。该文采用粉末冶金方法制备Cu-Ni-Fe-Co合金材料,研究烧结温度对其密度及力学性能的影响,进而确定制备高致密度导杆合金材料的最佳烧结工艺。结果表明:该合金的相对密度随烧结温度的提高而提高,当烧结温度为1 250℃时能获得综合性能较好、相对密度为95.2%、晶粒尺寸为20～30μm的Cu-Ni-Fe-Co合金材料,其性能完全满足制作铝电解连接导杆的要求。
Due to the functions of hanging anode and conducting electricity, the connecting bar is a critical component used in aluminum electrolysis for joining anode and electric power source, and its raw materials should be conductive, strong enough and densified. Therefore, the Cu-Ni-Fe-Co alloy is prepared by conventional powder metallurgy method, the influence of sintering temperature on density and mechanical properties of the alloy was investigated, and the best sintering technology for preparing the alloy material of the connect-bar was determined. The results show that the density of this alloy increases with rising sintering temperature and pressing pressure. When sintering temperature is 1250℃, the Cu-based alloy with relative density of 95.2% and grain size of 20-30μm is obtained, which are suitable for preparing the connect-bar.
出处
《粉末冶金材料科学与工程》
EI
2009年第3期152-156,共5页
Materials Science and Engineering of Powder Metallurgy
基金
国家重点基础研究发展规划(973计划)资助项目(2005CB623703)
国家高技术研究发展计划(863计划)资助项目(2008AA030501)
湖南省自然科学基金(05530098)
国家自然科学创新团队资助项目(50721003)
关键词
粉末冶金
Cu基连杆
烧结
致密化
power metallurgy
Cu-based connecting bar
sintering
densification
