摘要
目前CAP1400核电站钢安全壳环缝(材料SA738 Gr.B)焊接以焊条电弧焊为主,效率低、成本高。在热处理和非热处理条件下进行埋弧横焊工艺试验,并对焊材适用性、试件制备要求、无损检测、机加工取样及破坏性试验结果进行分析。结果表明,采用的焊材满足SA738 Gr.B钢板焊接技术要求,埋弧焊工艺稳定可靠,核电站钢安全壳筒体环缝可采用埋弧横焊工艺进行焊接。
At present,manual arc welding is the main welding method for the circumferential seam of steel containment vessel (material is SA738 Gr.B) in CAP1400 nuclear power plant,which is not only inefficiency,but also high cost. The submerged arc horizontal position welding technology test is carried out under the condition of heat treatment and non-heat treatment respectively,and the results of welding material applicability,specimen preparation requirement,nondestructive testing,machining sampling and destructive test are analyzed. The results show that the welding material and reliable submerged arc welding technology adopted can meet the welding technology requirements of SA738 Gr.B steel plate. So the submerged arc horizontal position welding technology can be used for the welding of the circumferential seam of nuclear power plant steel containment vessel.
作者
董永志
于杰
樊祥博
DONG Yongzhi;YU Jie;FAN Xiangbo(Shandong Nuclear Power Equipment Manufacturing Co.,Ltd.,Haiyang 265118,China;Yantai Nuclear Equi-pment Engineering Technology and Research Center,Yantai 265118,China;Shandong Nuclear Equipment Eng-ineering Technology and Research Center,Haiyang 265118,China)
出处
《电焊机》
2019年第4期317-321,共5页
Electric Welding Machine
基金
国家科技重大专项CAP1400钢制安全壳关键制造技术研究(2017ZX06002007)
关键词
CAP1400核电站
钢安全壳
环缝
埋弧横焊工艺
CAP1400 nuclear power plant
steel containment vessel
circumferential seam
submerged arc horizontal position welding process