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介绍了电镀锌板在汽车工业中的发展、应用现状。论述了不同因素对电镀锌板磷化的影响,“P”比、晶粒形貌对阴极电泳漆膜耐腐蚀性能的影响。概述了磷化技术在无亚硝酸盐磷化,无镍磷化,无铬钝化,低温磷化及磷化前表面预处理方面的进展。
The development and application status of electro galvanized sheet in automobile industry are introduced. The effects of different factors on phosphating of electro-galvanized sheet, “P” ratio and grain morphology on the corrosion resistance of cathodic electrodeposition coatings were discussed. The progress of phosphating technology in the process of nitrite-free phosphating, nickel-free phosphating, chromium-free passivation, low-temperature phosphating and surface pre-phosphating is reviewed.