铝合金无铬电解抛光工艺

Electropolishing of Aluminium in Non-Chromate Acid Solution

无铬电解抛光液,含H_3PO_4600ml, H_2SO_4 400ml,添加剂350ml,和适量的水,工作条件为温度60～80℃,电流密度15～25A/dm^2,时间2～5分钟.其抛光效果与常规三酸抛光液相同.

Non-chromate acidic solution containing (mL) 600 H_3PO_4, 400 H_2SO_4 350 additive and balance water, and woking at 60-80℃, 15-25A/dm^2 in 2-5 minutes gives the same polishing effect as the conventional acid-type solution containing chromate.