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采用正交试验法优选磷化液的添加剂，得到了耐蚀性较好的锌钙系中温磷化配方。研究了游离酸度、总酸度、磷化时间、磷化温度对膜耐蚀性的影响，并总结了该配方的最佳工艺条件
Orthogonal test method was used to optimize the phosphating solution additives to obtain a good corrosion resistance of zinc-zinc medium temperature phosphating formulations. The effects of free acidity, total acidity, phosphating time and phosphating temperature on the corrosion resistance of the films were studied, and the optimum process conditions were summarized