摘要
为了使双金属复合海管铺设过程中产生的环焊缝背部氧化问题得到有效控制,对国内现有双金属复合海管环焊缝背部氧化及其控制进行了分析研究。分析结果表明:焊接控制是关键,通过焊接工艺控制、焊接设备控制、焊接材料控制、焊接人员控制、焊接环境控制完全可以防止环焊缝背部氧化,特别是焊接参数实时监测仪与氧份实时监测设备的应用,可确保管线焊接质量;焊后内焊缝内窥镜检查的应用,能够直接客观地对焊缝背部质量做出评价,减少了切口检查造成的浪费。
In order to effectively control the circumferential weld backside oxidation problem of bimetal composite pipe used in submarine pipeline, which occurs in laying process, it analyzed the current circumferential weld backside oxidation of bimetal composite pipe and its control in China domestic. The results indicated that the welding control is the key point, the circumferential weld backside oxidation can fully be controlled through controlling several aspects, such as welding process, welding equipment, welding materials, welding staff and welding environment, especially the application of welding parameters real-time monitor and oxygen real-time monitoring equipment, can ensure pipeline welding quality. The application of inside weld endoscopy postwelding can objectively evaluate weld backside quality, and reduce waste caused by incision checking.
出处
《焊管》
2016年第1期49-52,共4页
Welded Pipe and Tube
关键词
双金属复合管
海洋管线
TIG焊
环焊缝背部氧化
bimetal composite pipe
submarine pipeline
TIG welding
circumferential weld backside oxidation
