10CrMo910钢焊缝焊接热循环的实时检测  

In-situ detection of weld metal thermal cycle of 10CrMo910 steel

作　　者：胡艳华[1] 陈芙蓉[1] 解瑞军[1] 李海涛[1] 

机构地区：[1]内蒙古工业大学材料科学与工程学院,呼和浩特010051

出　　处：《焊接学报》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)

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.

关 键 词：焊缝 焊接热循环 实时检测 

分 类 号：TG441.3[金属学及工艺—焊接]