How To Remove Rust From Sanitary Valves?
Sanitary Valve How to perform rust removal? Why do sanitary valves rust during use? So how to deal with this situation? The following sanitary valve manufacturers summarize several rust removal methods for sanitary valves.
1. Tool rust removal
Mainly use tools such as wire brushes to polish the steel surface to remove loose or raised oxide scale, rust, welding slag, etc. Manual tool rust removal can reach Sa2 level, and power tool rust removal can reach Sa3 level. If the steel surface is firmly attached to the oxide scale, the tool rust removal effect is not ideal, and the anchor depth pickling required by the anti-corrosion construction cannot be achieved.
2. Pickling rust removal
Generally, chemical and electrolytic methods are used for pickling treatment. Pipeline anti-corrosion only uses chemical pickling, which can remove oxide scale, rust, and old coatings. Sometimes it can be used as a re-treatment after sandblasting rust removal. Although chemical cleaning can make the surface reach a certain degree of cleanliness and roughness, its anchor
mark is shallow and easy to pollute the environment.
3. Shot blasting rust removal
Shot blasting rust removal is to use a high-power motor to drive the shot blasting blade to rotate at high speed, so that steel sand, steel shot, wire segments, minerals and other abrasives are sprayed (blasted) on the surface of the steel pipe under the action of centrifugal force. It can not only completely remove rust, oxides and dirt, but also achieve the required uniform roughness under the violent impact and friction of the abrasive. After shot blasting rust removal, it can not only expand the physical adsorption effect on the surface of the pipe, but also enhance the mechanical adhesion between the anti-corrosion layer and the surface of the pipe. Therefore, shot blasting rust removal is an ideal rust removal method for pipeline anti-corrosion. Generally speaking, shot blasting rust removal is mainly used for the inner surface treatment of the pipe, and shot blasting rust removal is mainly used for the outer surface treatment of the pipe. Several issues should be paid attention to when using shot blasting rust removal.
The above are several rust removal methods for sanitary valves, I hope it will be helpful to everyone.
