天然气与石油2023，Vol.41Issue(6)：8-13,6.DOI:10.3969/j.issn.1006-5539.2023.06.002
UNS N08825合金复合管环焊缝根焊关键质量验收准则探讨
Discussion on the key acceptance criteria for the root girth weld of UNS N08825 alloy lined or clad pipes
摘要
Abstract
Based on the actual engineering construction of UNS N08825 alloy lined or clad pipes,the main defects in root girth weld have been identified in this paper.The quality control requirements of girth welds in the relevant local and international standards and actual engineering projects are compared and analyzed,based on the principle that the engineering is fit for purpose,safe and reliable.This paper discusses the NDT acceptance criteria of the girth weld of UNS N08825 alloy lined or clad pipes on the basis of SY/T 7464-2020 Internal Lined or Clad Corrosion Resistant Alloy Pipeline Welding and Inspection Specification industry standard,and recommends the acceptance criteria of the main defects of root weld,such as internal concavity,porosity,inner surface discoloration and misalignment.These recommendations can be directly used as guidance for other engineering projects.关键词
UNS N08825 合金/环焊缝/根焊/内凹/气孔/颜色/错边Key words
UNS N08825 alloy/Girth weld/Root weld/Internal concavity/Porosity/Discoloration/Misalignment引用本文复制引用
李科,唐力,陶科宇,李天雷,邱蜀峰,任艳辉,陈勇彬,姜放..UNS N08825合金复合管环焊缝根焊关键质量验收准则探讨[J].天然气与石油,2023,41(6):8-13,6.基金项目
中国石油集团工程股份有限公司科研项目"双金属复合管选材、焊接与无损检测技术深化研究"(2022ZYGC-12-02) （2022ZYGC-12-02）
中国石油工程建设有限公司西南分公司科研项目"高含硫气田 825 合金双金属复合管应用及元素硫沉积防治技术研究"(FKY2021-208) （FKY2021-208）
