X80管线钢半自动焊焊接工艺研究
Study on Semi-automatic Welding Technology of X80 Pipeline Steel
姚宗湘1， 蒋德平1， 吕 伟2
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作者单位：（1.重庆科技学院，重庆 401331；2.中国石油青海油田分公司，甘肃 敦煌 736202）
中文关键字： X80管线钢； 焊接工艺； STT
英文关键字：X80 pipeline steel; welding technology; STT
中文摘要：介绍了X80管线钢采用STT根焊、药芯焊丝用PAW2000外焊机填充和盖面焊的工艺特点，以及焊接工艺要点。在选定的焊接方法、焊接材料和焊接工艺规范的条件下，对X80管线钢试件进行焊接，并进行了力学性能试验，取得了满意的结果。试验表明，通过此工艺施工的焊接接头具有较高的安全性。
英文摘要：The processing character of STT root welding, filling covered surface conducted by PAW2000 welding machine using flux-cored wire and the main points of welding process for X80 pipeline steel were introduced. The X80 pipewire steel was welded under the selected welding process, welding filler metal and technical parameters, and the mechanical properties of the joint were tested．The results indicate that the welded joint has higher safety using the welding materials and technical parameters.