It also was studied to increase the corrosion resistance of blue-white passivation film of zinc plating on the premise of not improving the chromium content in plating.

• 介绍了如何提高镀锌低铬蓝白钝化的耐蚀性能,探讨了在不提高钝化膜含铬量的前提下,增加镀锌层蓝白钝化的耐蚀性能。