General process flow of antirust phosphating
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Last Update: 2020-02-21
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Source: Internet
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Author: User
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Oil removal and rust removal → water cleaning → surface adjustment and activation → phosphating → water cleaning → chromate treatment → drying → greasing or dyeing treatment The workpieces treated by strong alkali and strong acid will lead to the coarsening of phosphating film, and the grains can be refined by surface adjustment and activation Oxalic acid and colloidal titanium can be used for zinc phosphating Manganese phosphating can be activated by insoluble manganese phosphate suspension Iron phosphating generally does not need to adjust activation treatment After phosphating, the work piece can be sealed with chromate to improve the rust resistance greatly For example, after oiling or dyeing treatment, the rust resistance can be increased several or even dozens of times.
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