Pickling surface treatment of stainless steel
There are usually two methods for pickling treatment, chemical and electrolytic.
Stainless steel pipe anticorrosion only uses chemical pickling, which can remove scale, rust, and old coatings. Sometimes this method can also be used as retreatment after sandblasting and rust removal. Although chemical cleaning can achieve a certain degree of cleanliness and roughness on the surface, its anchor pattern is shallow and it is easy to pollute the environment.
Spray (throw) shot rust removal
Spraying (throwing) rust removal is driven by a high-power motor to rotate the spraying (throwing) blades at high speed, so that steel sand, steel shots, iron wire segments, minerals and other abrasives are sprayed (throwing) on the surface of the steel pipe under the action of centrifugal force , not only can completely remove rust, oxides and dirt, but also the stainless steel tube can achieve the required uniform roughness under the action of violent impact and friction of abrasives.
After spraying (throwing) to remove rust, it can not only expand the physical adsorption on the surface of the stainless steel pipe, but also enhance the mechanical adhesion between the anti-corrosion layer and the surface of the pipe. Therefore, spraying (throwing) shooting rust removal is an ideal rust removal method for pipeline corrosion. Generally speaking, shot blasting (sand) derusting is mainly used for pipe inner surface treatment, and shot blasting (sand) derusting is mainly used for pipe outer surface treatment