摘要
INCONEL 625是一种对各种腐蚀介质都具有优良耐蚀性的低碳镍铬钼铌合金。本文以GORGON项目625复合层管线为例,介绍了其材料特性。从焊材选择、焊接方式、焊接顺序、预热和焊后熟处理等角度,分析了625复合层管线的焊接影响因素,并结合现场焊接检验,从焊前、焊接过程、焊后3个方面阐述了复合层管线的焊接质量控制方法,为现场施工和检验提供参考。
INCONEL625 as a low carbon nickel chrome molybdenum niobium alloy,possesses the performance of high corrosion resistance to kinds of corrosive medium.This paper introduced the characteristics of INCONEL 625 CLD for GORGON project.The welding influential factors for 625 CLD was analyzed from aspects of welding material,welding method,welding sequence,preheating and welding heat treatment,etc.From the view of pre-welding,welding process and post welding,it presented the welding control methods for INCONEL625 CLD,providing references for site operation and inspection.
出处
《中国海洋平台》
2012年第S1期75-80,共6页
China offshore Platform
关键词
625复合层
焊接
质量控制
检验
INCONEL 625 CLD
welding
quality control
inspection
