Method of removing rust from steel plate
With the social development and technical improvement,there are more and more method to remove rust from steel plate,now introduce the most used ways:
1,Manual rust removal
Manual rust removal means workers remove the rust by some simple tools such as grinding wheel,grinding paper etc.
2.Rust removal by chemical method
It is a method that to remove rust from steel plate by chemical reaction.Usually putting steel plate in acidic solution or alkaline solution and make the rust away soon.There are the advantages via the method:fast;good result and easy to deal with,but attention should be paid to anti-corrosion and environmental protection issues.
3.Electrolytic derusting
Electrolytic derusting is a method of removing rust from steel plates by the action of electric current. Direct current is passed into the electrolyte to cause an oxidation reaction at the anode on the surface of the steel plate, removing the rust. Electrolytic derusting has the advantages of good rust removal effect and no damage to the surface of the steel plate, but it requires professional equipment and technicians to operate.
4、Sandblasting and shotblsting to derust
Sandblasting and shotblsting to derust is a method of achieving surface cleanliness and appropriate roughness by using the erosion effect of particle injection. It uses the pressure of compressed air to continuously impact the surface of steel plate with white fused alumina,brown fused aluina,garnet sand or steel grit to clean the rust, oil and other debris on the surface of steel, revealing the original appearance of metal steel rust. This method is highly efficient and thoroughly removes rust, and is a better rust removal process.for example,we have many customers who use garnet 20-40mesh or 30-60mesh for rust removal.
Generally ,it is very necessary to remove rust from steel plate,because it not only can increase surface finish and corrosion resistance of steel plate,but also can extend the service life of steel plates.
