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焊接残余应力往往影响压力容器的疲劳强度、脆性断裂、应力腐蚀等。为了掌握48m~3液氨贮罐未经热处理和经整体焊后热处理后的焊接残余应力大小及分布状况,我们分别对其进行了现场实测。
Welding residual stress often affects the fatigue strength of pressure vessels, brittle fracture, stress corrosion and so on. In order to grasp the 48m ~ 3 liquid ammonia tank without heat treatment and the overall post-weld heat treatment after the welding residual stress size and distribution, we conducted their field measurements.