梁贺,赵永龙,臧勃林,吴春京

• 1:北京科技大学材料科学与工程学院

摘要(Abstract)：

选用低熔点的铅和锡为材料,采用"气压充芯连铸"工艺,制备出外层铅直径为12 mm,内层锡直径为8 mm的铅包锡双金属复合棒坯。设计了铅液浇注温度、连铸速度和充气压力的三因素、三水平的正交试验,对影响双金属连铸坯复合界面的因素进行了原理性研究,得出了最佳的工艺参数组合。结果表明:当铅液浇注温度为375℃,连铸速度为10 mm/min,充气压力为0.03 MPa时,连铸坯复合界面过渡层明显,表面质量良好,包覆层厚度均匀,实现了冶金结合。

关键词(KeyWords)： 铅包锡;双金属;气压充芯;连铸;复合界面

Abstract:

Keywords:

基金项目(Foundation): 国家“863”计划资助项目(2009AA03Z532);; 国家自然科学基金资助项目(50774009)

作者(Author): 梁贺,赵永龙,臧勃林,吴春京

DOI: 10.13289/j.issn.1009-6264.2011.03.007

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