热收缩带防腐补口质量控制

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Quality control of heat shrinkable tapes used in anti-corrosion field joint coating

JIANGLinlin1²，NAJiyu1²，HAN Bing¹²，LI Aigui12

1. CNPC Engineering Technology Research Company Limited，Tianjin 300451， China

2.QualitySupervisonTestigCnteofAntorrion&ealInsulationProductfoetrolemIdustrianj3a

Abstract：Inecentyears，withteincreasinfocusonthesfeoerationofoiladgspipelnes，antorosionfieldjintoating，asa weaklinkinthepipelinecoosionprotetionsystem，hasgainedmoreatentionwitinteindustry.Theprocssofevauatinganti corosionfieldjointcoatinghasbecomewidelypromotedHeatshrinkabletapesusedinfieldjointcoatingaecurrntlytepraryanti corrosionfieldjintcoatingstuctueappiedinlongdistaneoilandgaspipelines.Tispaerintroucs theurrtapltiostatus ofheathrinkableapesusedinfeldjointcoatig，analyzstheproblemsandcausesofheatshrinkabletapesusedinfieldjoitoating， andbasedontepracticalipemenaioofntosionfeldjoitcoatingprocsevauatioummasteeyisssadality controlparametersthatneedatentionthrougoutheholeprocess.Theaimistoprovideareferencefortheqalitycontrolofati corrosionfieldjointcoatigworkTheprocedurequalificationofanti-corosionfieldjointcoatinghelpsstandardzetheconstuction process，nsuresfeldjintcatingqualityndimprovesthpipelie'antiorosionpefane.TeequrementsoutlidinGB 23257——2017 and GB/T 51241—2017 should be strictly followed and widely promoted.

腐蚀控制是油气管道安全运行的重要保证]，外防护涂层作为防腐蚀的第一道防线，状态完好的涂层可提供 99% 的保护2。（剩余7250字）