copper and copper alloy parts 铜及铜合金零件
The process can be applied for the surface treatment of copper and copper alloy parts with super-thick oxide films and has a good effect.
该工艺用于超厚氧化皮铜及铜合金零件表面处理，效果较好。
Super-thick oxide films on copper and copper alloy parts heat-treated at high temperature make it very difficult for chemical polishing of the parts.
铜及铜合金制品经高温氧化后氧化皮过厚，进行化学抛光处理难度较大。
Tin welding parts and lead-tin alloy die casting, zinc, beryllium bronze, phosphorus copper alloy in electroplating copper with commonly used before also gets to improve adhesion.
锡焊件、铅锡合金、锌压铸件、铍青铜、磷铜等合金在电镀前也常用预镀铜来改善结合力。
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