I-4 new surface treatment process is studied by chemical conversion coating technology.
采用化学转化膜技术，研制出I - 4表面处理新工艺。
HY-200 process procedure for colour chemical conversion coating of al and its alloys parts and the test method for quality control are introduced in this paper.
本文介绍了对铝及铝合金零件进行彩色化学转化处理的HY—200法的工艺及质量控制的试验方法。
Influences of factors such as pretreatment, chemical conversion film on the quality of coating are analyzed.
分析了前处理、化学转化膜等因素对涂膜质量的影响。
The sulphuration coating was formed mainly by a chemical conversion, not only by a diffusion process.
硫化层主要通过化学反应和原子扩散过程而形成。
A composite chemical-conversion coating formed on a metallic base and comprising a crystalline continuous coating film.
本发明涉及一种复合化学转化涂膜，其含有在金属基质上形成的结晶连续涂膜。
A composite chemical-conversion coating formed on a metallic base and comprising a crystalline continuous coating film.
本发明涉及一种复合化学转化涂膜，其含有在金属基质上形成的结晶连续涂膜。
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