How to deal with the hole defect of hot rolled seamless steel tube?
In the production of seamless steel tubes, regular holes and pits are mainly caused by uneven deformation. The key to solving the problem lies in reducing uneven deformation. In order to solve this problem, the hot rolling seamless steel pipe can be improved by finely adjusting the continuous rolling mill, appropriately reducing the deformation of the continuous rolling mill, uniformizing the billet and capillary temperature, and reducing the vibration of the continuous rolling mill. 1. The approriate adjustment of the continuous rolling mill should follow the principle of equal flow and continuous flow, avoiding the reasonable amount of deformation while avoiding the rolling of the steel between the racks, and not allowing the holes of the previous mills to be overfilled or underfilled too. Seriously, the deformation of the rolling stock on each rolling mill should be relatively uniform. When the wear of the continuous rolls is severe, the influence of roll wear on the rolling ...