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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.
Aiming at the problems of hardened and cold crack in 10CrMo910 steel after welding and the near crack area, the successful welding of 10CrMo910 steel was carried out according to the actual production and the proper welding process.The thermocouple was directly buried in the welding seam , The real-time detection of the weld thermal cycle curve was realized.The peak temperature of the thermal cycle detected was up to 1 701 ℃, which was 401 ℃ higher than that of the thermal cycle in the weld heat-affected zone Cooling, obtained 10CrMo910 steel oil cooling, air cooling and sand cooling after the weld metal welding thermal cycle curve.