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Do you know the production process of welded pipe?

Do you know the production process of welded pipe? Let's take a look at it!

Longitudinal welded pipe production process is simple, high production efficiency, low cost, rapid development. Generally, the strength of spiral welded pipe is higher than that of longitudinal welded pipe. It can be used to produce welded pipe with larger diameter by using narrow blank, and welded pipe with different diameter can be produced with blank of same width. However, compared with the straight seam pipe of the same length, the weld length increases by 30 ~ 100%, and the production speed is lower. Large diameter or thick welded pipe is usually made of steel billet directly, while thin-walled welded pipe with small diameter only needs to be directly welded by steel strip. Then after simple polishing, wire drawing can be added: welded pipe is welded with strip steel, so in the original position it is not as high as seamless pipe. Process flow of welded pipe raw material uncoiling leveling end shearing and welding looper forming welding removing inner and outer welding bead pre correction induction heat treatment sizing and straightening eddy current testing cutting hydraulic inspection pickling final inspection packing shipping.

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