The method of orthogonal experiment was used to find the reason of rolled steel blister in panting pretreatment process if take sulfuric acid or hydrochloric acid as mordant.

• 本文介绍了利用正交优化法进行试验,找出涂装前处理过程中,用硫酸或盐酸做酸洗剂时,经常出现的钢材起泡的原因,并制定出了相应的预防措施。