1. Pickling and rust removal: Pickling and rust removal is also known as chemical rust removal. The principle is to use the acid in the pickling solution to chemically react with metal oxides to dissolve the metal oxides and remove the rust and dirt on the surface of the steel tray. Things. But pickling cannot achieve the surface roughness effect of shot blasting or shot blasting. And after pickling and rust removal, a large amount of clean water must be cleaned and passivated; the large amount of waste water, waste acid, and acid mist formed by it cause environmental pollution. If it is not handled properly, it will cause over-corrosion of the metal surface and form pitting, so it is rarely used at present.
2. Manual and power rust removal: The tools are simple and convenient for construction, but the labor intensity is high and the rust removal quality is poor. This method can only be partially adopted when other methods are not available.
3. Shot blasting and rust removal: using the high-speed operation of mechanical equipment to throw steel shots of a certain size by the centrifugal force of the blasting head, and the thrown steel shots collide with the components violently to achieve the purpose of removing the rust on the surface of the steel pallet. method.
4. Shot blasting and rust removal: a method of removing rust by using high-pressure air to bring out steel shots and spray them on the surface of the steel tray.
5. Sandblasting and rust removal: a method of removing rust by using high-pressure air to bring out the quartz sand and spray it on the surface of the steel pallet.
