摘要
介绍了一种直缝埋弧焊管焊接热循环参数测量的方法,设计了背面打孔的热电偶测温方案,成功实现了直缝埋弧焊管焊缝热影响区各个分区的焊接热循环曲线测量,解决了埋弧焊热循环参数Φ确测量的难题,可为焊接温度场数值模拟计算提供实测数据,为焊接工艺参数的制定和优化、焊缝及热影响区组织性能改善提供了重要的依据,对于提高埋弧焊管焊缝质量具有重要意义。
A method used to measure the parameters of welding thermal cycle for SAWL pipe was introduced in this paper.The temperature measuring scheme using a thermocouple punched on the back surface was designed,which successfully realized the measurement of curves for welding thermal cycles of various subzones in HAZ of SAWL pipe,solved the problem of accurate measurement of thermal cycle parameters for SAW（submerged-arc welding）.This method can provide actual measurement data for welding temperature field numerical simulation,and supply important basis for establishment and optimization of the welding process parameters,improvement of the microstructure properties in weld and HAZ.Thus it plays and important role in increasing the weld quality of SAW pipe.
出处
《焊管》
2012年第12期29-33,共5页
Welded Pipe and Tube
关键词
埋弧焊
焊接热循环
热电偶
测温技术
submerged arc welding
welding heat cycle
thermocouple
temperature measurement technology
