Preventive measures for cracking of welded pipe

When installing, the welded pipe can be directly welded on the pipeline according to the connection method, and installed according to the position used. Under normal circumstances, it can be installed at any position of the pipeline, but it needs to be easy to check, pay attention to the flow direction of the stainless steel welded pipe. Stainless steel welded pipes should be installed horizontally or vertically. Welded pipe should pay attention to the tightness during installation to prevent the occurrence of leakage and affect the normal operation of the pipeline.

Returning to the processing of welded pipe, bending and drawing is a procedure for deep processing of welded pipe. In this process, it is easy to produce cracks in the weld and produce a large amount of waste products. In order to prevent the occurrence of similar problems, it is necessary to use appropriate lubricants, which has a significant effect on the drawing and bending of welded pipes.

Because the lubricant can form a thin film with certain toughness and elongation between the convex and concave molds, it is conducive to the drawing and bending of the welded pipe. After coating the dry film, the dry film can deform with the blank during the drawing process, and the blank can be always separated from the mold. In addition, the film itself has a certain porosity and a large number of fiber cracks, so it can also store a certain amount of lubricating oil. The film is equivalent apply a layer of dry film lubricant. This lubrication method can effectively isolate the deformed welded pipe from the surface of the mold, and the lubrication effect is good, which is beneficial to improve the service life of the mold and the pass rate of the finished product.