This paper introduces the entirely closed upstream cleaning technology after electro - coating, where reverse osmosis technology is employed and domestic ultrafiltration equipment is used.

介绍了采用反渗透技术，结合国内现有油漆线的超滤装置实现电泳后冲洗全封闭逆流冲洗的技术。

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The importance of surface cleaning before replating, reverse electro-etching (anodic treatment) as well as low-voltage and small-current plating, and some problems needing attention were emphasized.

介绍了在已有铬层上补镀硬铬的方法，强调了补镀前表面净洁、反电刻蚀(阳极处理)、低电压小电流起镀等工艺的重要性及应注意的问题。

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