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介绍了铸铁件在75～80℃进行锰盐处理的原理和工艺。特点是中温快速,槽液易于控制,铸铁件表面在磷化前预先进行调整处理,所得磷化膜具有优良的耐蚀和抗磨性能,膜厚约3μ,不影响装配。
The principle and process of manganese salt treatment of cast iron at 75 ~ 80 ℃ are introduced. It is characterized by fast temperature and easy control of the bath. The surface of the cast iron is pre-adjusted before phosphating. The obtained phosphating film has excellent corrosion resistance and abrasion resistance. The film thickness is about 3μ without affecting the assembly.