凸台焊接对HFW焊管性能影响的模拟研究  

Simulation Research on the Influence of Outlet Fitting Welding to HFW Welded Pipe

作　　者：胡美娟 邵春明 池强 代鹏飞 马建朝 HU Meijuan1 , SHAO Ghunming2 , CHI Qiang1 , DAI Pengfei2 , MA Jianchao2(1. CNPC Tubular Goods Research Institute, State Key Laboratory for Performance and Structure Safety o f Petroleum Tubular Goods and Equipment Materials, XV an, Shaanxi 110071, China; 2. PetroChina West Pipeline Company, Urumchi, Xinjiang S30013, Chin)

机构地区：[1]中国石油集团石油管工程技术研究院,石油管材及装备材料服役行为与结构安全国家重点实验室,陕西西安710077 [2]中石油管道联合有限公司西部分公司,新疆乌鲁木齐830013

出　　处：《石油管材与仪器》2018年第2期45-48,共4页Petroleum Tubular Goods & Instruments

摘　　要：为了满足阀门、仪表和法兰等的安装需要,站场/阀室焊接工程中经常会遇到在主管道上开孔、焊接凸台(支管座)连接支管的情况。利用热电偶和测温仪,实时记录了凸台焊接时HFW焊管外表面的焊接热循环。利用Gleeble3 500热-力学模拟试验机,通过物理模拟方法研究凸台焊接对HFW焊管管体和直焊缝拉伸、冲击性能的影响规律。试验结果表明:凸台焊接时焊缝附近HFW焊管外表面距离角焊缝0.89 mm、3.01 mm处峰值温度分别高达1 372℃和1 004℃。HFW焊管管体和直焊缝模拟粗晶区和细晶区的抗拉强度高于HFW焊管直焊缝,冲击韧性高于HFW焊管管体。In order to meet the installation needs of valves, flanges and other instruments, the drilling hole and welding outlet fitting are the commonly welding work in the OTS＆valve projects. According to thermal cycles on the HFW welded pipe outer surface detected by thermo-couple during outlet fitting welding, the influence of outlet fitting welding to HFW welded pipe is researched by using Gleeble 3 500. The results show that the peak temperature of outer surface near the weld seam 0. 89 mm and 3. 01 mm is up to 1 372 ℃ and 1 004 ℃ respec-tively. The tensile strength of HFW pipe body and straight seam after simulation are higher than that of straight seam, and the impact tough-ness of those are higher than that of pipe body.

关 键 词：HFW焊管 凸台焊接 焊接热循环 热模拟 力学性能 

分 类 号：TG457.11[金属学及工艺—焊接]