The coating adhesion was detected by scribe - grid test and thermal shock test . the morphology of the coating was charactered by metallographic microscopy and sem . the research results of the experiments show that : 1 研究结果表明: 1 .采用草酸酸洗、碱性活化、配合剂钾盐浸锌液浸锌的前处理获得的后镀层质量高。
