焊管
銲管
한관
Welded Pipe and Tube
2015年
10期
57-60
,共4页
炼油化工装置%Cr-Mo钢管%焊接%氩电联焊%利旧材质处理%气孔%低氢操作
煉油化工裝置%Cr-Mo鋼管%銲接%氬電聯銲%利舊材質處理%氣孔%低氫操作
련유화공장치%Cr-Mo강관%한접%아전련한%리구재질처리%기공%저경조작
petroleum refining and petrochemical device%Cr-Mo steel pipe%welding%argon-electric combined welding%utilization and processing of old material%porosity%low hydrogen operation
对炼油化工装置安装和检修过程中，采用氩电联焊焊接新旧材质时产生气孔的原因进行了分析，指出母材杂质超标、工器具部件老化、环境空气潮湿且流动大、操作不当等因素是导致焊接气孔产生的根本原因。同时对导致气孔的影响因素进行了详细分析，提出了对应预防及处理措施，即减少母材杂质进入熔合区域、作业之前检查维护工器具及规范操作等。这些措施经某炼油厂现场施工论证，一次合格率保持在97.5%以上。
對煉油化工裝置安裝和檢脩過程中，採用氬電聯銲銲接新舊材質時產生氣孔的原因進行瞭分析，指齣母材雜質超標、工器具部件老化、環境空氣潮濕且流動大、操作不噹等因素是導緻銲接氣孔產生的根本原因。同時對導緻氣孔的影響因素進行瞭詳細分析，提齣瞭對應預防及處理措施，即減少母材雜質進入鎔閤區域、作業之前檢查維護工器具及規範操作等。這些措施經某煉油廠現場施工論證，一次閤格率保持在97.5%以上。
대련유화공장치안장화검수과정중，채용아전련한한접신구재질시산생기공적원인진행료분석，지출모재잡질초표、공기구부건노화、배경공기조습차류동대、조작불당등인소시도치한접기공산생적근본원인。동시대도치기공적영향인소진행료상세분석，제출료대응예방급처리조시，즉감소모재잡질진입용합구역、작업지전검사유호공기구급규범조작등。저사조시경모련유엄현장시공론증，일차합격솔보지재97.5%이상。
In this article, in view of the porosity occurred in petroleum refining device installation and maintenance by using argon-electric combined welding technology to weld new and old material, it analyzed the causes. It pointed the primary reasons caused welding porosity, including base metal impurities exceeding standard, tool components ageing, environment air humid and flow, improper operation etc. Meanwhile, it detailedly analyzed the above influence factors, and put forward the corresponding prevention and treatment measures, such as check and maintence instruments before operation, standardization operation etc. These measures were validated by site operation in some oil refinery, a qualified rate kept more than 97.5%.
