摘要
主要介绍复合管板与S32205换热管角接接头自动GTAW的焊接试验过程及结果,总结了焊接工艺过程中的工艺难点及注意事项,以此为依据编制焊接工艺用来指导某甲醇合成塔管束的焊接过程。通过角接接头的各项检测数据以及该设备安全服役的反馈信息证明,评定试验数据是准确可靠的,焊接工艺是合理可行的。并指出,NB/T 47014【9】附录D对管板-换热管角接接头的剪切强度试验及坡口内的焊脚高度不作要求值得商榷。
This paper mainly introduces the process and results of the auto-GTAW of fillet joint for clad tube sheet with S32205 heat exchange tube.The technical difficulties and considerations in the welding process are summarized,which is used as the basis to develop welding procedure to guide the welding process of tube-bundle of methanol synthesis tower.Through various test data of fillet joint and feedback information of safe service of this equipment,it is proved that the test data is accurate and reliable and the welding procedure is appropriate and feasible.In addition,the paper points out that shear strength test of the fillet joint for tube sheet with heat exchange tube and weld leg height in the groove are not required in the appendix D of NB/T 47014,which is open to discussion.
出处
《石油化工设备技术》
CAS
2017年第6期46-49,共4页
Petrochemical Equipment Technology
