镁合金化学镀镍磷传统的前处理溶液中含氟化氢和六价铬，对环境有较大的污染，其化学镀液对镁合金基体的腐蚀也影响镀层质量。为此，以H3PO4＋Na2MoO4溶液代替HNO3＋CrO3进行酸洗，并采用NH4HF2活化。在以硫酸镍为主盐的化学镀液中加入三元配位剂，以提高镀液的质量，降低镀液对镁合金基体的腐蚀。结果表明：开发的环保型前处理和镁合金直接化学镀镍磷工艺具有新特色。
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