A new kind of non-cyanide alkaline strike copper plating process for zinc alloy die-castings was developed in order to solve the problems in traditional non-cyanide strike copper plating.
为解决传统的锌压铸件无氰预镀铜存在的一些问题，提出了一种新的锌合金压铸件无氰碱性预镀铜工艺。
The process flows and formula of new system of non-cyanide alkaline zinc plating were introduced.
介绍了新型无氰碱性镀锌体系的工艺流程和工艺配方。
Conventional alkaline cyanide zinc plating process was compulsively restricted for its emission of toxic and hurtful substances and harm to the environment and human being.
原有的碱性氰化物镀锌工艺存在有毒有害物质排放及对人体的伤害，被国家强制限制。
A new non-cyanide alkaline copper plating process was introduced.
介绍了一种新的无氰碱铜工艺。
Following the alkaline zinc plating process, the trivalent chromium passivation process is conducted to provide a protection layer for zinc coating.
碱性溶液所获得的镀锌镀层，采用三价铬溶液钝化。
Following the alkaline zinc plating process, the trivalent chromium passivation process is conducted to provide a protection layer for zinc coating.
碱性溶液所获得的镀锌镀层，采用三价铬溶液钝化。
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