Long-term storage method of welded pipes and preventive measures for cracking

In daily work and production, long-term storage of welded pipes (erw pipes) should be regularly inspected, and exposed welded pipes should be kept clean on the surface, cleaned of dirt, and neatly stored in a ventilated and dry place indoors. Always keep the welded pipe dry and ventilated, keep it tidy, and store it according to the correct storage method.

During installation, the welded pipe can be directly welded to the pipe according to the connection method, and can be installed according to the location of use. Generally, it can be installed in any position of the pipe, but it needs to be easy to check the operation. Pay attention to the medium flow direction of the welded pipe, install it horizontally or vertically, and pay attention to the tightness of the welded pipe during installation to avoid leakage and affect the normal operation of the pipe.

Back to the processing of the welded pipe, bending and stretching is a process of deep processing of the welded pipe, and in this process, it is easy to produce weld cracks, resulting in a large number of waste products. In order to prevent the occurrence of similar problems, it is necessary to use suitable lubricants, which have obvious effects on the drawing and bending of welded pipes.

Since the lubricant can form a film with certain toughness and elongation between the convex and concave dies, it is beneficial to the drawing and bending of the welded pipe. As a lubricant, polyvinyl fluoride film has excellent tear strength and certain toughness and elongation, and is also easy to clean.

After coating the dry film, the dry film can be deformed with the blank during the drawing process, and the blank is 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, so the film is quite on 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 qualified rate of the finished product.

Hunan Standard Steel Co., Ltd is a leading seamless pipe and welded pipe manufacturer & supplier serving diverse industries with multiple types, grades, diameters and lengths of pipe.