在石化容器的焊接生产过程中,埋弧自动焊以较高的焊接生产效率和稳定的焊接质量,得到了广泛的应用.本文介绍了在汽化炉的焊接生产中,通过对埋弧焊接设备的改造,实现了封头和筒身对接内环缝的埋弧焊接,提高了生产效率,降低了操作者的劳动强度,保证了焊接质量.

高压加热器的进出水接管与水室的连接方式有两种设计结构,一种是插入式结构,一种是安放式结构,目前国内自主设计的高加多为插入式结构,且马鞍埋弧焊接技术较为成熟,而一些按ASME标准设计的高加,采用了骑坐式结构,目前也实现了埋弧焊接.

Cylinder is a important part of full flow nuclear pumping station,the kind of Ⅲ pressure vessel,use to Keep a balance of flow in the whole platform.The material of the shell is 13MnNiMoR,surfacing welding is required for the inside wall of cylinder with E309L + E316L,we do not have the experience of the procedure,the article introduce the procedure of the surfacing welding and the result of the test.