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Causes of wrong edges of large-diameter spiral steel pipes (SSAW): In the production of large-diameter spiral steel pipes, misalignment occurs from time to time, and there are many influencing fact...

Piling spiral steel pipe（SSAW） is a spiral seam steel pipe made of strip steel coils as raw materials, often extruded and formed by automatic double-wire double-sided submerged arc welding. So, what i...

Pickling passivation is a chemical reaction. First, the oxide scale and rust on the surface of the steel can be removed by the pickling solution, and the passivation process can be completed at the sa...

Why the stainless steel pipe need pickling? The stainless steel pipe will form an oxide film when placed in the air, but the protection of this film is not perfect. The surface of the stainles...

How to identify 304 stainless steel plate? 1. You can use a potion that is specially tested for stainless steel, such as 304 stainless steel. After the potion is tested, it will not change col...

The method of seamless steel pipe to achieve high quality performance: Seamless steel pipes are widely used in mechanical manufacturing, because the mechanical performance of this steel is v...

Principles for the selection of commonly used steel pipe materials for pressure pipelines: When designing pressure piping, after the pipe diameter is determined by calculation, the material of the...

In order to ensure the quality of welding, the processing of the workpiece that needs to be welded before welding can be gas cutting or cutting. Generally, it is a bevel, and sometimes it is a curved ...

Petroleum casing pipes are steel pipes used to support the walls of oil and gas wells to ensure the normal operation of the entire oil well after drilling and completion. Each well uses several layers...

After polishing, the finished product of 304 stainless steel welded pipe can be as clear as a mirror in brightness, which is beautiful and atmospheric, but the products of 304 stainless steel welded p...