X65钢管焊接工艺分析及质量控制

X65钢管焊接工艺分析及质量控制 Welding process analysis and quality control of X65 steel pipe 孙强 SUN Qiang 1 first-author 段英新 DUAN Yingxin 1 苏衍福 SU Yanfu 1 黄江中 HUANG Jiangzhong 1 赵翠华 ZHAO Cuihua 1 武丙东 WU Bindong 1 海洋石油工程股份有限公司 海洋石油工程股份有限公司 Offshore Oil Engineering Co.,Ltd. Offshore Oil Engineering Co.,Ltd. X65钢管工程应用极为广泛,管道焊接技术不断发展、更新,但是气体保护焊及手工焊仍然有不可替代的地位。本文通过大壁厚X65钢管的手工焊和气体保护焊两种工艺评定,设置合理的试验参数,分析二种焊接方法的理化试验性能差别,并根据管道流体介质,增加了抗硫化物应力腐蚀开裂性能试验(SSC)。针对该管道应用于海洋工程对施工环境要求相对苛刻,提出了相应的焊接过程质量控制方案,相关内容对工程制造具有很好的参考价值。 X65 steel pipe is widely used in engineering,pipeline welding technology is developing and updating,but gas shielded welding（FCAW-G） and manual welding（SMAW）still have irreplaceable position. In this paper,through two kinds of process qualification of X65 steel pipe with large wall thickness,the reasonable test parameters are set and the difference of physical and chemical test performance between the two welding methods is analyzed. And according to the fluid medium of the pipeline,the sulfide stress corrosion cracking resistance test（SSC） is added. In view of the relatively harsh construction environment requirements of the pipeline used in offshore engineering,the corresponding welding process quality control scheme is proposed,which has a good reference value for engineering manufacturing. X65 气保护药芯焊 手把焊 SSC X65 FCAW-G SMAW SSC TG457.6 2022-03-08 3 51