A chromium-free colorful passivation technology for zinc coating was developed. 研究了用於鋅鍍層彩色鈍化的無鉻鈍化液最佳配方及工藝。
Process control of phosphating including analysis of the solution,inspection and quality control of the film is described. 介紹磷化工藝過程中的工藝管理,如磷化液的分析,磷化膜的檢測和質量控制等。