A kind of manganese series black phosphating technics at mid-temperature was studied.
研究了一种中温锰系黑色磷化工艺。
Black phosphating of iron and steel is a new surface treatment process made a feature of using HHS blackening additives.
钢铁黑磷化是以HHS黑化剂为特征的表面处理新工艺。
Low temperature black phosphating solution was introduced in this paper, and the factor can influence the phosphating film were discussed.
介绍了一种低温黑色磷化液，并初步讨论了影响磷化膜质量的一些因素。
The existing problems of black phosphating process for solenoid valve were analyzed, including unstable phosphating quality, imperfect technics, incongruous rack design and low post-treatment quality.
分析了电磁阀本体黑色磷化工艺存在的问题，包括磷化质量不稳定，工艺不完善，挂具设计不合理、后处理质量低等。
Mn series black anti-corrosion phosphating process at medium temperature was an improved process for traditional Mn series phosphating process.
锰系中温黑色抗蚀磷化工艺对传统的锰系磷化工艺进行了改进。
Mn series black anti-corrosion phosphating process at medium temperature was an improved process for traditional Mn series phosphating process.
锰系中温黑色抗蚀磷化工艺对传统的锰系磷化工艺进行了改进。
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