Industry News
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Straight seam steel pipe diameter expansion technology and common detection methods
Expanding technology of straight seam steel pipe: 1. Preliminary rounding stage: the fan-shaped blocks are opened until all the fan-shaped blocks touch the inner wall of the steel pipe. At this time, the radius of each point in the inner tube of the steel pipe within the step ...Read more -
Tips to identify fake and inferior steel pipes
Shoddy steel pipes are prone to folding. Folding is a variety of fold lines formed on the surface of the steel pipe, and this defect often runs through the longitudinal direction of the entire product. The reason for the folds is that the counterfeit and inferior manufacturers...Read more -
Treatment measures for common problems in pre-welding of straight seam steel pipes
1. Wrong side. This is a common problem in pre-welding, and the wrong side is out of tolerance, which directly leads to the degradation or scrapping of the straight seam steel pipe. Therefore, it is required to strictly control the misalignment amount during pre-welding. When ...Read more -
How to correctly judge the thickness of stainless steel welded pipe
How to correctly judge the thickness of the stainless steel welded pipe refers to the wall thickness of the pipe. Tell everyone that the wall thickness of the stainless steel welded pipe will be attached to the pipe under normal circumstances. Customers can know the thickness ...Read more -
How to detect the corrosion performance of steel flanges
The use of steel flanges in industrial structural parts is mainly to improve the connection and keep the pipelines sealed without leakage. However, many steel flanges will corrode and age after being used for some time, thus losing their tightness. Therefore, it is very necess...Read more -
Horizontal fixed welding of thick-walled stainless steel pipes
Thick walled stainless steel pipe is a hollow long strip of steel, which is widely used as a pipeline for transporting fluids, such as oil, natural gas, water, gas, steam, etc. Stainless steel pipes are lighter in weight when they have the same bending and torsional strength. ...Read more -
Wall Thickness Accuracy and Straightening Method of Straight Seam Steel Pipe
The control of the wall thickness of the straight seam steel pipe is a difficult point in the production of steel pipes. At present, the methods of straight seam steel pipe manufacturers in the production of wall thickness accuracy generally include: 1. Tube billet heating: th...Read more -
What inspections do submerged arc steel pipes need to go through after production
In the process of producing submerged arc steel pipes, the temperature must be strictly controlled, to ensure the reliability of welding. If the temperature is too low, it may cause the welding position to fail to reach the temperature required for welding. When most of the me...Read more -
How to avoid rusting of precision stainless steel pipe fittings
1. Do not contact other metals, because stainless steel pipe fittings will be rusted by the attachment of dissimilar metals, such as screws, etc. Although it is not serious at the beginning, if you wipe it with a cloth and a neutral detergent, you will see rust. 2. Another fac...Read more