Detailed description of stainless steel welded pipe processing technology

In the process of stainless steel welded pipe processing, it is easy to cause certain changes to the internal or external of stainless steel welded pipe. As a professional manufacturer of stainless steel welded pipe for 13 years, jinrunde summarizes some knowledge about stainless steel welded pipe processing for your reference

Welding:

Before processing and welding of stainless steel welded pipe, the rust, oil, water and paint harmful to welding should be thoroughly removed, and the welding rod suitable for steel type should be selected. The processing time interval of stainless steel welded pipe is shorter than that of carbon steel spot welding. Stainless steel pipe brush should be used to remove welding slag. After finishing or grinding, the surface shall be cleaned to prevent local corrosion.

Stainless steel welded pipe cutting and stamping:

Because the strength of stainless steel welded pipe is higher than that of general materials, higher pressure is required during stamping and shearing. Only when the clearance between knives is accurate, can poor shear and work hardening not occur. Plasma or laser cutting is used. When gas cutting or arc cutting is necessary, the heat affected zone is ground and heat treatment is necessary.

Stainless steel welded pipe processing equipment

Stainless steel welded pipe processing and bending:

The thin plate can be bent to 180, but in order to reduce the cracks on the bending surface with the radius of 2 times the plate thickness, it is necessary to give 2 times the plate thickness radius along the calendering direction and 4 times the plate thickness radius when bending perpendicular to the calendering direction in stainless steel welded pipe processing, especially in welding, in order to crack in stainless steel welded pipe processing, it is necessary to grind the surface of the welding area.

Stainless steel welded pipe processing construction and construction points for attention

In order to prevent scratch and contaminant adhesion during the processing of stainless steel welded pipe, stainless steel welded pipe construction is carried out under the film sticking state. However, with the extension of time, the residue of the paste solution should be cleaned according to the service life of the film. After the construction, when removing the film, the surface should be washed, and the special stainless steel welded pipe processing tools should be used. When cleaning the common tools with the general steel, the cleaning should be carried out in order to prevent the iron filings from sticking.

Attention should be paid to prevent the highly corrosive magnetic and cleaning drugs from contacting the surface of stainless steel welded pipe, and the stainless steel welded pipe should be washed immediately during processing. After the completion of construction, neutral detergent and water shall be used to wash the cement, fly ash and other materials attached to the surface.