硼酸熔融盐除铅剂在紫杂铜中的应用研究  

Research and Application of Molten Borate Salt De-laed Agent on the Impure Copper

作　　者：陈一胜[1] 张雪辉[1] 李晓闲[2] 朱志云[1] 闫丰[1] 

机构地区：[1]江西理工大学材料科学与工程学院,江西赣州341000 [2]昆明理工大学材料科学与工程学院,云南昆明650093

出　　处：《铸造技术》2011年第9期1279-1282,共4页Foundry Technology

摘　　要：采用硼酸熔融盐除铅剂对紫杂铜进行了除铅实验研究,采用荧光分析仪、能谱仪(EDS)、扫描电子显微镜(SEM)及金相显微镜,分析了除铅剂成分及保温时间对除铅效果和组织性能的影响,并对其影响规律及作用机理进行了探讨。结果表明,在紫杂铜中添加适量的硼酸熔融盐除铅剂,能有效去除杂质元素铅的含量,且当配比R(H2BO3与Na2CO3质量比)为4时除铅率最高达70%以上,其他杂质含量亦均明显降低;同时能明显改善金属组织。The molten borate salt was used as a de-lead agent on the impure copper to remove the lead in this paper.The microstructure and properties which affected by the composition of the de-lead agent and the holding time were studied by means of the fluorescent analyzer、EDS、SEM and the metallographic microscope,and the influence law and mechanism were also analyzed.The results show that by adding proper amounts of molten borate into impure copper can effectively remove lead when the ratio R（H2BO3/Na2CO3） is 4,the highest rate of removing the lead can reach to more than 70%.Meanwhile,it can significantly improve metal structure.

关 键 词：紫杂铜 除铅 硼酸盐 

分 类 号：TF811[冶金工程—有色金属冶金]