管道自动焊碳钢实芯焊丝焊接工艺分析  

Analysis of Welding Technology of Carbon Steel Solid Wire for Automatic Pipeline Welding

作　　者：刘建国 王银飞 王振飞 王健 田文冲 LIU Jianguo;WANG Yinfei;WANG Zhenfei;WANG Jian;TIAN Wenchong(Sinopec Tenth Construction Co.,Ltd.,Qingdao,Shandong,266555,China)

机构地区：[1]中石化第十建设有限公司,山东青岛266555

出　　处：《工程建设（维泽科技）》2022年第12期74-77,共4页Engineering Construction

摘　　要：随着石油化工行业焊接技术快速发展,对焊接质量、施工效率要求也愈来愈高,传统的焊条电弧焊已满足不了焊接施工进度的需求。为了提高施工进度,降低成本,降低劳动强度,减少电弧烟尘污染,优化焊接环境,适应工程建设中市场的竞争,我公司承揽的谋乙烯装置管道焊接施工时,在管道焊接中采用熔化极RMD气保焊打底(以下简称RMD焊)+熔化极CO_(2)焊(以下简称CO_(2)焊)填充盖面的焊接工艺,取得良好的施工进度、焊接质量,充分验证此了焊接工艺,具有焊接成本低、效率高、质量稳定等优点。此文着重介绍管道自动RMD打底焊+CO_(2)气保焊填充、盖面焊接工艺在谋乙烯装置管道焊接施工中的应用,在项目工程建设中提供了有力的技术支持,为公司工厂化管道预制的焊接施工积累了经验。With the rapid development of welding technology in the petrochemical industry,the requirements for welding quality and construction efficiency are becoming higher and higher.The traditional electrode arc welding can no longer meet the needs of welding construction progress.In order to improve the construction progress,reduce costs,reduce labor intensity,reduce arc smoke pollution,optimize the welding environment,and adapt to the market competition in project construction,our company has adopted the welding process of melting electrode RMD gas shielded welding bottoming(hereinafter referred to as RMD welding)+melting electrode CO_(2)welding(hereinafter referred to as CO_(2)welding)to fill the cover during the pipeline welding of the ethylene plant contracted by our company,and achieved good construction progress and welding quality,the welding process is fully verified andhas the advantages of low welding cost,high efficiency and stable quality.This paper mainly introduces the application of automatic RMD backing welding+CO_(2)gas shielded welding filling and covering welding process in the pipeline welding construction ofthe ethylene plant,which provides strong technical support in the project construction and accumulates experience for the welding construction of the company's factory pipeline prefabrication.

关 键 词：熔化极气体保护焊 碳钢实芯焊丝 焊接特点 焊接工艺 

分 类 号：TG457.6[金属学及工艺—焊接]