有些资料介绍国外一步磷化法的工艺把磷化、漂洗、钝化一步完成。在氧化锌的磷酸溶液中先添加有机还原剂,再添加铬酸或铬酸盐,使溶液部分氧化产生Cr~(3+)而具有钝化作用,这样可进一步提高耐蚀性和随后涂漆的附着力。根据工厂生产上的需要,经多次实验,提出生产上可行的一步面膜磷化工艺. Some information on the introduction of foreign one-step phosphating process phosphating, rinsing, passivation completed step by step. In the zinc oxide phosphoric acid solution first added organic reductant, and then add chromic acid or chromate, the partial oxidation of the solution to produce Cr ~ (3 +) with passivation, which can further improve the corrosion resistance and subsequent painting Adhesion. According to the needs of the factory production, after many experiments, put forward feasible production step mask phosphating process.