How to Reduce the Scrap Rate of ERW Steel Pipe in Manufacturing?
From the analysis data of ERW steel pipe scrapping, it can be seen that the roll adjustment process plays a very important role in the production of welded pipes. That is, in the production process, if the rolls are damaged or worn seriously, some rolls should be replaced in time in the unit, or a certain type of ERW welded steel pipe should be continuously produced in sufficient quantity, and the entire set of rolls should be replaced. When replacing the welded steel pipe, the roll needs to be adjusted accordingly to ensure the quality of the welded pipe. On the contrary, if the roll is not adjusted properly, it is likely to cause defects such as torsion, lap welding, edge fluctuation, indentation, scratches and even large ovality on the surface of the welded pipe on the protrusion and the pipe body. The following is an introduction to the operation method of roll adjustment that should be mastered when changing rolls. First of all, if the specification of ERW steel pipe should be cha...