镀锌层无铬钝化工艺研究

1.哈尔滨工业大学应用化学系,黑龙江,哈尔滨,150001

2.哈尔滨工业大学应用化学系,黑龙江,哈尔滨,150001

3.哈尔滨工业大学应用化学系,黑龙江,哈尔滨,150001

4.哈尔滨汽轮机厂有限公司,黑龙江,哈尔滨,150040

5.哈尔滨汽轮机厂有限公司,黑龙江,哈尔滨,150040

6.哈尔滨汽轮机厂有限公司,黑龙江,哈尔滨,150040

Chromium-Free Passivating Technology for Zinc Plating

开发了一种无铬无毒的环保型镀锌层钝化工艺,通过试验研究了钝化液成分和工艺条件对钝化膜的影响情况.钢铁件在锌酸盐或酸性镀锌15 μm后,采用此工艺钝化,得到的钝化膜抗白锈试验24 h,中性盐雾试验72 h达到5 级(符合国家标准),钝化液排放达到环保要求.

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