钢管机械扩径工艺研究

Research on pipe's mechanical expanding process

介绍了大口径直缝焊管机械扩径的优点、原理及扩径力的计算 。

The paper introduced the advantages, the principles and expanding force calculation of mechanical expanding for the big diameter pipes with the straight welding seam and found the factors affecting the expanding force and the life of the expanding head.