Copper alloy for lead-wire frame and its production

引线框架用铜合金及其制造方法

Abstract

本发明提供一种引线框架用铜合金及制造方法,铜合金中的Fe:2.0~2.6wt%,Zn:0.05~0.1wt%,P:0.01~0.03wt%,Mg:0~0.05wt%,Re:0.01~1.5wt%,其制法为:将原料熔化后注入铸模,在液相线温度至400℃的温度范围内以80℃/min以上的冷却速度进行冷却;将铸坯在1000℃以下的加热温度进行热轧压延后,反复进行冷轧压延和300℃~ 600℃双级连续退火;冷轧加工使其厚度变化量达到40%以上,再进行450℃以下的低温退火,得到成品。该铜合金具有良好的热加工性,尤其具有优良的抗拉强度、硬度、延伸率和电导率等特性,是生产引线框架等电子部件的最佳材料。
This invention provides a kind of fuse frame in copper alloy and its manufacturing method , the copper alloy: Fe:2.0- 2.6wt%,Zn:0.05-0.1wt%,P:0.01-0.03wt%,Mg:0-0.05wt%, Re:0.01-1.5wt%,Whose manufacturing method is: Pour the raw material into casting mould after they melting, cooling it with the speed that over 80DEG C/min in the temperature range that the liquid temperature rise till 400-DEG C; hot-rolling and rolling the casting blank in the heating temperature under 1000DEG C, then cold-rolling and rolling it again and again, twin-stage annealing continuously at 300DEG C-600DEG C ; That cold rolling process makes its thickness change amount to be more than 40% , getting the finished product by low temperature anneal at 450DEG C. The copper alloy has fine hot-workability, especially has these characteristic property such as good tensile strength , hardness , coefficient of elongation and conductance rates , it is the best material to produce the electronic component such as the fuse frame.

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Cited By (14)

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