Formate-A acid system was a sulfate trivalent chromium plating process with low concentration.
甲酸-羧酸a体系是一种低浓度的硫酸盐三价铬电镀工艺。
A new decorative chromium plating process for aluminium substrate is described with formulas given.
介绍一种在铝基体上装饰镀铬的新工艺及其配方。
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。
BH-88 trivalent chromium sulfate plating process was chosen.
选用BH- 88硫酸盐三价铬镀铬工艺。
The present invention can eliminate six-valent chromium from chromium plating waste water fast, and has simple technological process, convenient operation, low cost and high effect.
本发明能迅速有效地去除镀铬废水中的六价铬，且工艺简单、操作方便、成本低，效果好。
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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