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铬酸盐钝化 [gè suān yán dùn huà]
[涂料] chromating
- 为提高热镀锌钢板的耐蚀性，对热镀锌钢板铬酸盐钝化工艺进行了研究。
In order to improve the corrosion resistance, the passivation process of hot-dipped galvanized steel has been studied. - 研究发现，植酸、硅酸钠体系生成的钝化膜经硅烷处理后，其耐蚀性已接近铬酸盐水平。
And found that phytic acid, sodium silicate system of passive film generated by the silane treatment, the corrosion resistance close to the level of chromate. - 结果表明，热浸镀锌层采用该无毒钝化液进行钝化，可以推迟镀锌层出现白锈的时间，其抗蚀性已接近铬酸盐钝化水平；
Results showed that ACM coating retarded the formation of white rust on the galvanized steel and the corrosion resistance of coating was closed to that of the chromate conversion coating.
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