How To Remove Rust From Stainless Steel Pipes
Nov 15, 2023
Stainless Steel Pipes
How to Remove Rust from Stainless Steel Pipes
The methods for removing rust from stainless steel pipes are as follows:
1. Cleaning
Using emulsion to clean the surface of stainless steel pipes can remove grease, dust, lubricants and similar organic matter, but it cannot remove rust, oxide scale, etc. on the steel surface, so it is only used as an auxiliary means in anti-corrosion production.
2. Tool rust removal
Use tools such as wire brushes to polish the surface of stainless steel pipes to remove loose or lifted oxide scale, rust, etc. The rust removal of hand tools can reach Sa2 level, and the rust removal of power tools can reach Sa3 level. However, if there is a strong iron oxide scale attached to the surface of the stainless steel pipe, the rust removal effect of the tool will not be ideal.
3. Pickling
Generally, chemical and electrolytic methods are used for pickling treatment. Only chemical pickling is used for pipeline anti-corrosion, which can remove scale, rust, and old coatings. Sometimes it can be used as a reprocessing after sand blasting and rust removal. Although chemical cleaning can achieve a certain level of cleanliness and roughness on the surface, its anchor lines are shallow and can easily pollute the environment.
4. Projection rust removal
Projectile rust removal uses a high-power motor to drive the projectile blades to rotate at high speed, so that steel sand, steel shot, wire segments, minerals and other abrasives are projected onto the surface of the steel pipe under the action of centrifugal force. It can not only remove rust, oxides and dirt, but also Moreover, the steel pipe can achieve the required uniform roughness under the action of violent impact and friction of abrasives. After blasting rust removal, it can not only expand the physical adsorption effect on the pipe surface, but also enhance the mechanical adhesion between the anti-corrosion layer and the pipe surface. Therefore, projectile rust removal is a rust removal method used for external surface treatment of stainless steel pipes and pipeline anti-corrosion.
