【摘要】 文章介绍了采用了一次穿孔和两次穿孔技术生产厚壁无缝钢管的试制工艺过程,并对所生产的五个系列产品进行了检测,结果表明产品的尺寸精度、表面质量和力学性能均满足相关标准及用户的要求,具备批量生产能力。更多还原

【Abstract】 The paper introduces the trial-producing process of the thick wall seamless steel tube using the technology of first perforation and secondary perforation.The five series of products were checked.The results show that the size accuracy、the surface quality and the mechanical functions conform the related standards and requests of customer.It can be produced in batch.更多还原