摘要
对钻井平台桩腿材料690MPa淬火+回火细晶类高强钢的可焊性进行分析研究。拟定合理焊接工艺评定方案,通过工艺评定验证其合理性。确定了一套严格的焊接工艺参数,主要包括:焊前预热、道间温度控制、焊接线能量控制、道间清理要求、焊后消氢、无损检测等控制项目。
The drilling platform leg material 690 MPa high strength fine grained structural steels weldability had been analyzed. To formulate reasonable welding procedure specification plan,the procedure qualification would verify its rationality. Determined a set of strict welding process parameters,including preheating before welding,the inter-pass temperature control,welding heat inpl, t control,gouging method requirements,a hydrogen elimination after welding,NDT etc. Control project
出处
《电焊机》
2016年第8期48-51,共4页
Electric Welding Machine
关键词
钻井平台桩腿
焊评工艺
焊接性
线能量
冲击功
drilling plafform leg
welding process
weldability
weld heat input
impact
