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几种不锈钢镀铬操作工艺流程概括

时间:2014/7/21   作者:凯维特精密

镀铬

1、电化学除油→热水洗→冷水洗→浸酸活化(1ml/L Hcl、10ml/L H2SO4,室温,半分钟;适用于自动线上不锈钢镀铬,不宜镀铜或镍)→水洗→镀铬。

2、阴极电化学除油→清洗→阳极活化(10A/dm2)→直接镀铬。

3、化学除油→清洗→阳极电化学除油(0.5A/dm2)→清洗→浸酸活化(1ml/L Hcl、10ml/L H2SO4,室温,45S)→清洗→镀铬

 

注:镀铬时,应先用是正常电镀时电流密度的1.5~2倍镀3~5分钟,然后再正常电流密度电镀,要尽量缩短各工序之间的过渡引起的停留时间。

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