Causes of defects in the production process of cold drawn seamless tubes
The production of seamless tubes requires cold drawing technology, so some defects may appear during the cold drawing process. What are the specific reasons for the defects in seamless tubes during cold drawing? Next follow the seamless tube manufacturers to find out. What is a cold drawn seamless tube? Cold-drawn or cold-rolled precision seamless tubes are cold-drawn or cold-rolled precision seamless steel tubes with high dimensional accuracy and good surface finish for mechanical structures and hydraulic equipment. Cold drawn seamless tube production process: Round tube blank →heating →piercing →head →annealing →pickling →oiling (copper plating) →multi-pass cold drawing (cold rolling) →blank tube →heat treatment →straightening →water Pressure test (flaw detection) →marking →storage. The root cause of defects in the production process cold drawn seamless tubes: 1. The quality of the cold drawn seamless tube material and the middle pipe is not good enough, and the geometrical specifica...