Said method is that a pretreatment before electroplating and a special formula solution used in the treatment are used to ensure the alloy surface from oxidation and ensure its electroplating quality.

本方法是利用电镀前的预处理及处理中使用特殊配方的溶液，以保证合金表面不被氧化，保证电镀质量。

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Black chrome is one of special strain in the system of chrome-plating. This paper simply introduced formula of plating solution, technical terms, influential factors and matters needing attention.

黑铬是镀铬体系中的一种特殊镀种。本文简要介绍镀黑铬的镀液配方、工艺条件、影响因素及注意事项。

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Black chrome is one of special strain in the system of chrome-plating. This paper simply introduced formula of plating solution, technical terms, influential factors and matters needing attention.

黑铬是镀铬体系中的一种特殊镀种。本文简要介绍镀黑铬的镀液配方、工艺条件、影响因素及注意事项。

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