1. When heating the tube blank, attention must be paid to uniform heating. It is prohibited to raise or lower the temperature rapidly, and the temperature should be kept stable.
2. Use the centering roller to determine whether it is in place, and adjust the central axis, opening angle, etc. of the core-holding roller.
3. The rolling tools should be installed on the rolling line to ensure that the upper and lower roller distances are equal and the left and right guide distances are equal.
4. For rolling mill mandrels, pipes with larger wall thicknesses should be selected for processing. Pipes with uniform wall thickness can reduce the probability of mandrel deformation and improve the accuracy of steel pipe wall thickness.
5. Improve the process, which can also improve the wall thickness accuracy and avoid the situation of thinning in the middle and the wall thickness exceeding the control range.
Post time: Nov-20-2023