摘要
针对X80高强管线钢及相关焊接技术规范要求,应用自主研发的八焊炬内焊机及自保护药芯焊丝自动焊机进行管道全位置焊接试验,并进行焊接接头力学性能测试。确定了合理的坡口形式、焊丝型号及与之匹配的焊接参数,制定了"内焊机根焊+管道自保护药芯焊丝自动焊填充、盖面焊"的焊接工艺。试验结果证明,焊接工艺制定合理,操作简单,效率高,其焊接接头的各项性能指标均满足X80钢级管道工程焊接规范及国家相关标准要求。
Aiming at the X80 high strength pipeline steel and related welding technical specification requirements,it adopted independent development eight welding torch internal welder and self-shielded flux-cored wire automatic welder to carry out pipeline all-position welding test,and conducted mechanical properties testing of welded joints. It determined reasonable groove type,welding wire type and matching welding parameters,and formulated welding technology internal welding machine for root welding＋self-shielded flux-cored wire automatic welding for fill and cover welding. The test results proved that the welding process is reasonable,simple operation,and high efficiency,the various performance indicators of welded joints all meet the X80 steel grade pipeline engineering welding specification and relevant national standards.
出处
《焊管》
2014年第10期38-41,49,共5页
Welded Pipe and Tube
基金
中国石油天然气管道局科技攻关项目(2010-02)的部分研究成果
关键词
X80管线钢
自保护药芯焊丝
自动焊
焊接工艺
X80 pipeline steel self-shielded flux-cored wire automatic welding welding technology
作者简介
王长江（1983-），男，硕士，工程师，主要从事油气管道焊接施工装备的研发及工艺研究工作。
