摘要
针对10CrMo910钢焊后焊缝及近缝区常出现硬化和冷裂纹等问题,结合生产实际,采用合适的焊接工艺,对10CrMo910钢进行了成功焊接.焊接过程中将热电偶直接埋在焊缝里,实现了焊缝焊接热循环曲线的实时检测.检测到的热循环峰值温度最高为1 701℃,较以往焊接热影响区热循环的研究结果提高了401℃.焊后的焊缝金属以不同的方式冷却,获得了10CrMo910钢油冷、空冷和砂冷后焊缝金属的焊接热循环曲线.
10CrMo910 steel was welded by using proper parameters for solving the problem of cold crack and local hardening in the weld or adjacent metal weld of 10CrMo910 steel.Thermo-couples were laid in welded seam during welding to record temperatures in situ,and in-situ detection of thermal cycle about weld metal was realized.The detected maximum temperature during thermal process was 1701℃ and above 401 ℃ than the reported results about heat-affected zone.The welding thermal cycle curves with oil-cooled,air-cooled and sand-cooled for different cooling rates of welded joint were obtained.
出处
《焊接学报》
EI
CAS
CSCD
北大核心
2009年第10期105-107,共3页
Transactions of The China Welding Institution
基金
内蒙古自然科学基金资助项目(200711020710)
关键词
焊缝
焊接热循环
实时检测
weld metal
welding thermal cycle
in-situ detection
