The primary process and function of the surface treatment section for PPGI Steel Coil
1. Grinding Machine
Grinding the dirt on the steel surface
2. Degreasing Groove
Remove grease from the surface of the steel sheet
3. Hot water Scrubbing Groove
Remove the degreasing liquid remaining on the surface of the steel sheet
4. Activation Groove
The activation treatment is used to activate the surface of the galvanized sheet, which is conducive to the subsequent chemical treatment.
5. Coldwater Scrubbing Groove
Remove ash and residual treatment liquid from the surface of the steel sheet.
6. Phosphating Groove
A thin conversion coating is formed on the surface of the steel sheet. Increase the roughness of the surface of the steel sheet, and improve the corrosion resistance and the adhesion between the steel sheet and the coating.
7. Cold Water Scrubbing Tank
Removal of residual ash and residual treatment fluid on the surface of the steel sheet
8. Passivation Treatment Tank
To further improve the corrosion resistance of the conversion film, it is used to seal the holes for the steel sheet treatment.
