The traditional process, the chrome plating solution the chromium acid as the foundation and sulfuric acid as catalyst, the ratio of 100 to 1.

传统的镀铬工艺，其电镀液以铬酸为基础，以硫酸作催化剂，两者的比例为100：1。

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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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