石油测井仪器外壳焊接工艺探究

Welding Procedure Exploration of Well Logging Tool Shell

针对石油测井仪器外壳结构的特点和加工工艺要求,采用A302(E309-16)焊条和焊前预热焊后保温等措施探究外壳体用马氏体不锈钢(2Cr13)和定位柱用奥氏体不锈钢(1Cr18Ni9Ti)相互焊接时焊缝的抗裂性。试验结果表明:上述方法可有效地防止焊缝中出现焊表冷裂纹,保证壳体的焊接质量,满足设计要求。

Aiming at the characteristics of the shell configuration of the well logging tool and the request of the machining technics,A302（ E309- 16） welding rod was used,also measures of warming up before jointing and heating preservation after jointing were taken in order to explore the capability to resist cracks when martensite stainless steel（ 2Cr13） was used in shell and abstruse stainless steel（ 1Cr18Ni9Ti） was used in orientation pole to joint each other. The test result showed that the method can prevent cool cracks effectively in surface of the welding lines,and satisfy the joining quality of the shell and the design request.