How are stainless steel welded pipes processed?

How are stainless steel welded pipes processed?

welding:

Before processing and welding stainless steel welded pipes, rust, oil, water, paint, etc. that are harmful to welding should be thoroughly removed, and welding rods suitable for the steel type should be selected. The processing time of stainless steel welded pipe is shorter than that of carbon steel spot welding, and a stainless steel welded pipe brush should be used to remove welding slag. After welding, the surface should be polished or cleaned to prevent local corrosion or strength reduction.

Stainless steel welded pipe cutting and stamping:

Because stainless steel welded pipe is stronger than ordinary materials, higher pressure is required when stamping and shearing. Only when the gap between the knives is accurate will there be no shear failure and work hardening. Cut using plasma or laser. When gas cutting or arc cutting must be used, the heat affected zone should be ground and heat treated as necessary.

Processing and bending of stainless steel welded pipes:

The thin plate can be bent to 180°, but in order to reduce cracks on the curved surface, stainless steel welded pipes with the same radius and 2 times the plate thickness are given a radius of 2 times the plate thickness when processing along the edges. rolling direction. When bending perpendicular to the rolling direction, a radius of 4 times the plate thickness needs to be given, especially when welding. When processing stainless steel welded pipes, the surface of the welding area should be ground off to prevent cracking.

Stainless steel welded pipe processing and construction precautions

In order to prevent scratches and adhesion of pollutants during the processing of stainless steel welded pipes, the construction of stainless steel welded pipes is carried out in a film-coated state. But as time goes by, the residual amount of paste will change with the service life of the membrane. When removing the film after construction, the surface should be cleaned and special stainless steel welded pipe processing tools should be used. When cleaning public tools made of general steel, they should be cleaned to prevent iron filings from sticking to them.

Care should be taken not to allow highly corrosive magnetic and stone cleaning agents to contact the surface of stainless steel welded pipes. Stainless steel welded pipes should be cleaned immediately during processing. After the construction is completed, use neutral detergent and water to clean the cement, ash, etc. attached to the surface.

Article source: https://article-realm.com/article/Business/54758-How-are-stainless-steel-welded-pipes-processed.html