How to ensure the quality of industrial stainless steel 304 welded pipe

Through the causal analysis of industrial stainless steel 304 welded pipe waste, we know that the roll adjustment process plays a very important role in the entire production process. That is to say, in the whole production process of industrial stainless steel 304 welded pipe, if the roll is damaged or worn seriously, then it is necessary to replace part of the roll on the unit in time, or a certain type of industrial stainless steel 304 welded pipe has been continuously produced in sufficient quantity, The entire set of rolls needs to be replaced.

In the process of roll replacement, it is necessary to adjust the roll accordingly in order to obtain good quality of stainless steel 304 welded pipe. Conversely, if the roll is not adjusted properly, it is likely to cause defects such as torsion, lap welding, edge waves, bulges, indentations or scratches on the surface of the pipe body, and even large ovality in the stainless steel 304 welded pipe seams.

First of all, we need to replace the DN150 industrial stainless steel 304 welded pipe specification, and generally replace the entire set of rolls. The steps for roll adjustment are as follows: first use a steel wire to pull a center line from the entrance to the exit of the unit, and adjust so that the passes of each frame are on a center line, and make the forming bottom line meet the technical requirements.

After the rolls are replaced as required, in order to ensure the welding quality of industrial stainless steel 304 welded pipes, it is necessary to conduct a comprehensive adjustment of the forming rolls, guide rolls, extrusion rolls, and sizing rolls, and then focus on the closed pass of the forming rolls , guide roller, extrusion roller adjustment. Among them, the role of the guide roller is to control the welding seam direction of the stainless steel welded pipe and the height of the bottom line of the tube blank, relieve the edge extension, control the rebound of the edge of the tube blank, and ensure that the tube seam is straight and does not twist into the extrusion roller.
In short, during the welding process of industrial stainless steel 304 welded pipe, during the slow operation of the welding unit, the staff need to pay close attention to the rotation of the rolls in each part, and adjust the rolls at any time to ensure that the welding quality and process size of the stainless steel 304 welded pipe meet the specified requirements Require.