In order to prolong the service life of the cs seamless pipe, its surface is usually cleaned so that the anti-corrosion layer of the steel pipe can be firmly combined. The common treatment methods are as follows.

1. Cleaning

Solvents and emulsions are usually used to clean the grease, dust, lubricants, and organic matter adhering to the surface of the cs seamless pipe. However, the rust, oxide scale and welding slag on the surface of the steel pipe cannot be removed, and other treatment methods are required.

2. Tool rust removal

The oxide skin, rust and welding slag on the surface of the steel pipe can be cleaned and polished with a wire brush. The rust removal of tools is divided into two types: manual and power. The rust removal of manual tools can reach Sa2 level, and the rust removal of power tools can reach Sa3 level. If there is a particularly strong oxide scale attached to the surface of the steel pipe, it may not be cleaned with the help of tools to remove rust, and other methods must be found.

3. Common pickling of small-diameter cs seamless steel pipes includes two methods: chemical and electrolytic. However, the anticorrosion of the pipeline only adopts chemical pickling. Chemical pickling can achieve a certain degree of cleanliness/roughness on the surface of the steel pipe, which is convenient for subsequent textured lines. Usually as a reprocessing after shot peening (sand).

4. Shot blasting to remove rust

The high-speed rotation of the blades is driven by the Dagongfeng motor, so that abrasives such as steel grit, steel shot, wire segments, minerals and other abrasives are sprayed and projectile on the surface of the steel pipe under the action of centrifugal force. The steel pipe achieves the required uniform roughness under the action of the abrasive impact and friction.

Among the four treatment methods, shot blasting is the most ideal treatment method for pipe derusting. Generally, shot blasting is mainly used for inner surface treatment of steel pipes, and shot blasting is mainly used for outer surface treatment of steel pipes.