用于3lpe管材防腐补口的tu涂料应用规范

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1、SpecificationfortheApplicationofTarUrethane(TU)fortheFieldJointCoatingandRepairofThreeLayerPolyethyleneCoatedLinepipe用于3LPE管材防腐补口的TU涂料应用规范SpencerCoatingsLimited,FroghallTerrace,Aberdeen,AB243JNTel+44(0)1224788400Fax+44(0)1224648116info@spencercoatings.co.ukwww.spencercoatings.co.ukCONTENTS1

2、.0Scope范围2.0CodesandStandards规范和标准3.0FieldJointSurfacePreparation补口的表面预处理4.0FieldJointCoating补口涂敷5.03LayerCoatingRepair3层涂层修补6.0FieldJointCoating补口涂敷检查7.0StorageandHandling储存与运输8.0Safety安全9.0AcothaneTUPropertiesTU性能10CoatingProperties涂层性能1.0Scope范围Thisspecificationdescribestherequirementsfo

3、rpreparingfieldjointsanddamagedareason3Layerpolyethylenecoatedpipes,andtheapplicationofTarUrethane(TU)asanexternalprotectivesystem.Coatingapplicationshallcomplywiththemanufacturersrecommendationsandbeinaccordancewiththisspecification.本规范规定了处理3LPE涂层管上的补口和损坏区域，以及使用TU作为外部防护系统时的要求。涂料施工应按照厂家的建议并

4、应遵照本规范来执行。ThecoatingshallnormallyconsistofonelayerofrapidcureTUappliedusingawetonwetspraytechniqueormulti-layersoflongerpot-lifematerialformulatedforbrushapplication.涂层一般包括一层有着快速固化作用的TU涂料，它使用湿喷涂技术或多层耐用涂层通过刷涂涂敷。Suitablecoatingmaterialsare:涂层材料：·MetrotectAcothaneTUSprayGradeMetrotectAcothaneT

5、U喷涂·MetrotectAcothaneTUBrushingGradeMetrotectAcothane刷涂2.0CodesandStandards规范和标准SSPC-SP1(SolventCleaning)SSPC-SP1（溶剂清洗）SSPC-AB1(MineralSlagandAbrasive)SSPC-AB1（矿渣及研磨剂）ASTM-D4417(FieldMeasurementofSurfaceProfileofBlastCleanedSurfaces)ASTM-D4417（现场测量喷砂处理过的表面粗糙度）ISO8501-1(Preparationofsteelsub

6、stratesbeforeapplicationofpaintsandrelatedproducts-Visualassessmentofsurfacecleanliness).ISO8501-1（涂料及相关产品涂敷前钢基预处理-目测表面净度）DIN30671-埋地钢管的热固性塑料涂层3.0FieldJointSurfacePreparation补口的表面预处理Oil,greaseandothercontaminantsshallberemovedfromthesteelandadjacentpolyethylenesurfacesbysolventcleaninginacc

7、ordancewithSSPCSP1priortoabrasiveblastcleaning.根据SSPCSP1的规定，在喷砂处理之前，应当用溶剂将附着在钢材及相邻聚乙烯材料表面的油脂及其他污染物清洗掉。SteelandpolyethylenesurfacestoreceiveTUcoatingshallbeabrasiveblastcleanedtoestablishananchorpattern.Thetemperatureofthesubstrateshallbeaminimumof3°C(5°F