Thick wall stainless steel pipe after long-term use or long-term storage, there may be surface rust, then how to deal with this situation? Today, we share with you the rust removal method of thick wall stainless steel pipe.

1, by cleaning

The surface of thick wall stainless steel pipe is cleaned by solvent and emulsion to achieve the effect of removing oil, grease, dust, lubricant and similar organic matter. Through cleaning, it can not only clean up the corrosion, oxidation, welding, etc., on the surface of the thick wall stainless steel pipe, but also play an auxiliary role in anti-corrosion.

2, by pickling

Chemical and electrolytic pickling is used in two ways, of which only chemical pickling can be used for pipeline anticorrosion, which can remove the oxide, rust and old coating on the surface of the pipe, and sometimes can be used as reprocessing after sand blasting. Chemical cleaning can achieve a certain degree of cleanliness and roughness on the surface of the steel pipe, but because of its shallow anchor pattern, it is easy to cause environmental pollution.

3. Tool rust removal

Performance in the use of steel wire brush and other tools to polish the surface of the steel, can remove the surface of the pipe oxide, rust, welding slag, etc., hand tools can reach Sa2 level, power tools can reach Sa3 level, if the surface of the steel pipe attached to a solid oxide, the effect of rust removal is not significant, can not achieve the anticorrosive construction requirements of the anchor grain shallow degree.

4, spray rust removal

Through the high-power motor to drive the jet blade high-speed rotation, so that steel balls, steel sand, iron wire segments, minerals and other abrasives in the motor under the powerful centrifuge action on the surface of the steel pipe for spraying treatment, not only can completely remove oxides, rust and dirt, in the abrasive impact and friction can also achieve the required uniform roughness.

Jet rust removal can not only expand the physical adsorption of the pipe surface, but also enhance the mechanical adhesion between the anticorrosive layer and the pipe surface, so jet rust removal is an ideal method for pipeline anticorrosion.