引线框架用C194铜合金工艺的研究  

Study on Process of C194 Copper Alloy Applied to Lead Frame

作　　者：黄国杰[1] 谢水生[1] 程镇康[2] 马吉苗[2] 程磊[1] 

机构地区：[1]北京有色金属研究总院有色金属材料制备加工国家重点实验室,北京100088 [2]宁波兴业电子铜带有限公司,浙江宁波315336

出　　处：《金属热处理》2006年第11期67-70,共4页Heat Treatment of Metals

基　　金：国家"863"资助项目(2004AA3Z1460;2004AA33G060)

摘　　要：对国内外引线框架用C194合金的成分及性能进行了对比,分析了不同合金含量对材料性能的影响,随后进行了合金熔铸工艺的研究,用SEM分析了微观组织。结果表明,C194合金性能上的差距是由于铸坯中产生的5～10μm左右的粗大析出颗粒造成的,但这些颗粒的形成不是主要由于元素P、Zn合金元素含量的不同造成的,也不是由于铸造温度及速度的变化产生的,而是由于Cu-Fe和Cu-P中间合金的添加方法不正确带来的。因此,在合金熔炼过程中,Cu-Fe和Cu-P中间合金一定在熔体完全熔化后同时加入。The composition and performance of C194 alloy home made and abroad were studied. The influence of different alloy content and different casting process on properties of C194 alloy were also analyzed. The results show that the reason for the different performance of C194 ,alloy is for the coarse precipitate grains which size is about 5 - 10μm. The formation of the coarse grains is not for the different content of the P and Zn element or for the variation of the casting temperature and speed,but it is the adding method of Cu-Fe and Cu-P interalloy. So Cu-Fe and Cu-P interalloys should be added together after the base metals fully melted in the process of smelting.

关 键 词：引线框架 铜合金 C194合金 熔铸 

分 类 号：TG146.11[一般工业技术—材料科学与工程]