Development and Application of Pneumatically-operated Pipe Pre-straightening Machine

During the process of seamless steel tube manufacturing, after the operation steps namely, drawing, heat treatment and cooling, the product normally becomes bent. In case the bent is beyond a normal range, it will be hard for the tube to get through the 7-high straightener, influencing the normal cycle of the production negatively. Addressing this problem, a pneumatically-operated pipe pre-straightening aggregate is designed and installed by and located at the Steel Tube Plant, Xinyu Xingang Specialty Steel Co., Ltd. Actual operation result shows that the said pre-straightening machine is capable of meeting the production demand, having the productivity of the individual operation line increased by over 12%.