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AP1000蒸汽发生器横向支撑采用ASTM A588GR.B低合金高强度耐候钢,焊接过程中有一定的裂纹敏感性。本文采用超声检测动态波形技术结合焊接工艺对缺陷进行分析,准确地对缺陷性质进行判断,避免了裂纹的漏检。
AP1000 steam generator horizontal support using ASTM A588GR.B low-alloy high-strength weathering steel, the welding process has some crack sensitivity. In this paper, ultrasonic testing dynamic waveform technology combined with the welding process to analyze the defects, accurately determine the nature of the defect, to avoid the missing of cracks.