1. Chemical methods
After pickling, in order to remove all contaminants and acid residues, it is important to wash it properly with clean water. After pickling, it is important to remove all contaminants and acid residues. After all the treatment with polishing equipment re-polishing, polishing wax can be closed. On the local slight rust spot can also be used 1:1 gasoline, oil mixture with a clean cloth to wipe rust spot.
2, mechanical methods
Sandblasting, blasting with glass or ceramic particles, annihilation, brushing and polishing. It is possible to mechanically remove the contamination caused by previously removed materials, polishing materials or annihilation materials. All kinds of pollution, especially foreign iron particles, can be a source of corrosion, especially in humid environments. Therefore, the mechanical cleaning surface should preferably be cleaned under dry conditions. The mechanical method can only be used to clean the surface and does not change the corrosion resistance of the material itself. It is therefore recommended to re-polish with a polishing device after mechanical cleaning and to seal with polishing wax.
