304不锈钢高温焊接残余应力研究  

Study of High Temperature Welding on Welding Residual Stress of 304 Stainless Steel

作　　者：高中稳[1] 刘磊[1] 李明娜[1] 党战伟[1] 冀峰[1] 高光甫[1] 王洪志 

机构地区：[1]甘肃蓝科石化高新装备股份有限公司,甘肃兰州730070 [2]中国石油管道公司沈阳龙昌检测中心,辽宁沈阳110034

出　　处：《石油化工设备》2015年第5期25-29,共5页Petro-Chemical Equipment

摘　　要：分别对常温、预热到500℃、预热到600℃、预热到700℃的304奥氏体不锈钢试板进行焊接,采用盲孔法分别对不同焊接温度的焊后试样进行焊接残余应力测试。结果表明,随着焊接温度的升高,304奥氏体不锈钢试样的焊接残余应力减小,焊接温度越高,残余应力减小的效果越明显,高温焊接可显著降低304奥氏体不锈钢的焊接残余应力。304stainless steel test specimens were welded at room temperature,500 ℃,600 ℃and 700 ℃.The welding residual stresses of test specimen was measured by small blind hole method under various temperature.The results show that high temperature welding can effectively reduce the welding residual stresses of 304 stainless steel,the welding residual stress decrease with the increase of heating temperature,the higher the soldering temperatures,less the welding residual stresses.

关 键 词：304奥氏体不锈钢 高温焊接 焊接残余应力 

分 类 号：TQ050.6[化学工程] TG404[金属学及工艺—焊接]