长颈阀盖承插焊缝质量的检测

Quality Assurance for the Socket Welds of the Extended Bonnet of Cryogenic Gate Valves

介绍了超低温闸阀阀盖长颈部分采用承插焊连接的结构特点、尺寸和材料,提出了焊缝的检测方法。

This article introduces the configuration,dimension and material of the socket w eld in the extend bonnet of cryogenic gate valves and propose the inspection methods for the w elds.