叙述了国内与国外在镀锌层无铬(VI)钝化工艺的新进展,包括有三价铬的钝化、钼酸盐的钝化、钨酸盐的钝化、钛盐的钝化、单宁酸的钝化、植酸的钝化工艺,以及在研究上有很大进展的改性硅酸盐的钝化、稀土金属盐的钝化、有机硅烷的钝化,以及无机-有机物复合型的钝化等工艺,并在这一基础上进一步提出了镀锌层无铬钝化的发展方向。 The new progress of chromium (VI) passivation process for zinc coating at home and abroad is described, including passivation of trivalent chromium, passivation of molybdate, passivation of tungstate, passivation of titanium salt, single The passivation of niacin, the passivation of phytic acid, and the passivation of modified silicates, the passivation of rare earth salts, the passivation of organosilanes, and the inorganic-organic complex Passivation and other processes, and on this basis further proposed galvanized chromium-free passivation development.