Q690E高强钢窄间隙MAG立焊工艺  

Narrow Gap MAG Vertical Welding Process for Q690E High Strength Steel

作　　者：陆汉忠 张华军 兰虎[2] 贾小磊 赵德龙 

机构地区：[1]上海振华重工(集团)股份有限公司,上海200125 [2]哈尔滨理工大学,黑龙江哈尔滨150080 [3]上海海工装备智能焊接制造工程技术研究中心,上海200125

出　　处：《造船技术》2015年第4期71-74,81,共5页

摘　　要：针对海洋平台桩腿齿条板传统焊接质量稳定性差和生产效率低的现状,提出双面窄间隙MAG立焊新工艺。对双面窄间隙MAG立焊工艺过程进行说明,并与手工电弧焊工艺进行比较,最后进行双面窄间隙MAG立焊焊接试验。试验过程中针对试板双面焊接采用双机器人异步焊接方法保证焊接质量提升焊接效率。依据工艺评定规范AWS D1.1 2010,对焊接接头开展的工艺评定试验,评定结果表明双面窄间隙MAG立焊工艺满足规范要求,推进了双面窄间隙MAG立焊工艺应用于桩腿齿条板焊接的进程。Aimed at the current situation of poor quality stability and low production effi- ciency in producing offshore platform pile legs, a new process of double-sided narrow gap MAG vertical welding was proposed. An introduction of the new process has been provided, subsequently welding experiment with the new process was carried out. Two robots welding in asynchronous manner at double sides of test piece for welding was launched to avoid welding disturb and promote welding efficiency. According to AWS D1.1 2010, welding procedure qualification experiment was implemented. The result showed that narrow gap MAG vertical welding process was suitable for producing pile legs. It took one step further for the application of robot double-sided narrow gap MAG vertical welding and automation of pile leg butt welding.

关 键 词：低合金高强钢 机器人 窄间隙MAG立焊 

分 类 号：U671[交通运输工程—船舶及航道工程]