管道油漆修补方案Word下载.docx

1、防腐蚀工程完工后，应立即进行验收；6、Thecoatingshallhavequalificationfromitsmanufacturer油漆应有制造厂的质量证明书；7、Paintingenvironmentalconditionshallbeinaccordancewiththeinformationontheproductsheet.Thesurfacetemperaturetobe30C.abovedewpointrelativehumidityshallbelessthan85%.涂装环境条件必须和产品说明书的信息一致。表面温度至少大于露点30C.。相对湿度最大植为85%。8、Sel

2、ectionofPaint油漆选用DChasprovidedthepaintingsystemsuitableforthisproject.TheselectionofpaintshallstrictlyfollowDCconstructionpaintingsystem.Painttype,finishpaintcolorandpaintrepaircolorshouldbechoseninaccordancewiththelinelist.Thespecificpaintingsystemsareasfollows.本项目DC已经给出了适合本项目的油漆系统，油漆选择严格按照DC油漆系统进行

3、选择施工。油漆种类、面漆和油漆修补的颜色按照linelist规定选用，主要有如下种类。详细油漆系统对照表如下：PaintingSystemDC201A油漆系统DC201ADC201A：newsteelwork，pipingandfabricatedequipments，shopprepare（-20to1200C）Location部位DC201ASurfacereparation表面处理AbrasiveblastcleaningtoISO8501-1Sa2.5,（Roughness40-75microns）喷砂处理至ISO8501-1Sa2.5，粗糙度达到Rz=40-75微米CoatingSy

4、stem涂层配套CoatName涂层名称ProductName产品名称DFT:microns干膜厚度：微米PrimeCoat底漆Inorganiczinc-rich,Interzinc22Greenishgrey,Matt无机富锌底漆Interzinc22绿灰色，平光60-75Mid-Coat中间涂层MIOEpoxyIntergard475HSGray环氧MIO中间漆Intergard475HS,灰色100-150TopCoat面漆Polyurethanecolor：meetSpecsrequirements聚氨酯面漆颜色：符合规范要求TypicalMinimum/MaximumDFTRang

5、e典型最小/最大干膜厚度范围220-300Pipesupportssandblasting,paintingrequirementshouldbethesameaspiping,.管道支架的喷砂、涂漆与管道要求相同。DC201B：Siteworkandrepairsofsteelworks,pipingandfabricatedequipments（-20to1200C）DC201BSurfacepreparationmicrons）喷砂处理至ISO8501-1Sa2.5，粗糙度达到Rz=40-75微米microns干膜厚度：SurfaceTolerantEpoxyIntergard670HS

6、低表面处理环氧漆Intergard670HS中间漆Top-CoatPolyurethanecolor:meetspec”srequirements50-75250-375DC202A：Galvanizedsurface,handrais（-5to600C）.（cannotuseabrasivebasting）.DC202清理基层表面油污到SSPC-SP1标准要求。蚀刻底漆Interprimer53910-25环氧底漆Intergard26930-5090-150PaintingSystemDC203油漆系统DC203DC203：steelpipingandfabricatedequipment

7、underinsulation（-30to1550C）DC203Phonolicepoxyintertherm228环氧酚醛高温漆intertherm22890-120180-240PaintingSystemDC204油漆系统DC204steelpipingandfabricatedequipmentunderinsulation（155to4000C）DC204ProductName产品名称Inorganiccopolymerintertherm751CSA冷喷铝高温漆intertherm751CSA9MainEquipment&Tools主要机具A、主要施工工具Description机具

8、名称Qty.数量WheelGrindingMachine砂轮磨光机Asnecessary按需Manulblastingmachine手动喷砂机InternalGrindingMachine内磨机PowerBlender动力搅拌机Scraper刮刀File锉刀WileBrush钢丝刷Several若干AbrasiveCloth铁砂布PaintBucket油漆桶Brush刷子B、maininspectionfacility主要检测工具编号NOName名称Use用途Remarks备注1Thermometer温度计Testtemperature检测温度-1550,needtobecalibratedt

9、ermly需定期校准2Slingpsychrometer手摇湿度计Testtemperatureandhumidity检测温度和湿度needtobecalibratedtermly需定期校准3Dewpointcalculator露点计算表Calculatedewpoint计算露点4超生波测厚仪测量涂层厚度5Holidaytester漏涂检测仪Checkholidaysofcoatings检测涂层漏涂点6Replicatetapeprofiletester复膜胶带法粗糙度检测仪Checktheanchorprofileofsubstrate检测底材表面粗糙度7Tapefortestcleanin

10、g清洁度测试胶带Cleaningtest检测清洁度8Flashmagnifier放大器9Knife刀LocalAreaTouchupforPiping管道局部损伤及焊缝修补工艺1、确认油漆损伤区域ConfirmdamageregionsneedtorepairA、Areasneedtorepair需要进行涂层修补的区域Areaofweldingseamwhereweldinghasbeendoneafterpaintingandunqualifiedlocalcoatingareacausedbyeverykindofreasonneedtoberepaired.Generallycompon

11、entsshallberepairedinclude:对于涂装后进行焊接的焊缝区域和各种原因造成的不合格局部涂层，应进行修补，一般情况下需要进行修补的构件为：Weldingseamarea:areaafterconstructioncoatingfinished.焊缝区域：主要针对主要涂层已施工完毕的焊缝区域。Damagedcoatingarea:damagedbyhotworkingtransportation,liftingandloadingetc.damagedlocalpartofcoating.涂层损坏区域：由于热工作业和运输，吊装，装卸等原因造成的涂层损伤或损坏局部涂层部位。Ov

12、erthicknesscoatingcausecrackoninorganiczincsilicatecoating.由于涂层厚度超厚，而导致无机硅酸锌涂层龟裂部位。Localcoatingwithdefects:sagging,omission,pinholecausedbyunsuitableconstruction.有涂层缺陷的局部涂层：由于施工过程中施工不当造成的流挂，漏涂，针孔等局部涂层的位置。Seriouslypollutedpartofcoating:Anycontaminationhasalreadydamagedcoating（pollutedbycement）orthelo

13、calareawherecontaminationcanberemovedbyeasycleaning.涂层被严重污染的部位：被污染物严重污染，污染物已造成涂层损坏（被水泥污染），或污染物已无法通过简单的清洗就能除去的局部涂层区域。B、Methodofpaintingrepair涂层修补的方法Forweldseamareordamagedareaofcoating:UsepowersandpaperdisctogrindtheweldseamareaordamagedareaofcoatingtoGradeSt3（damagedcoatinghasbeenremovedentirely）,th

14、epipeweldingjointwillbetreatedbymanualblastingmachinebyalevelofSa2.5.Damagedareaandunbrokenareashallhaveaoverlappingslope.Overlappingareashallappearnewandfreshsurfaceofcoatingtoenlargebondingforcebetweenrepaircoatingandrawcoating.Repairpositionshallbecleanedadequatelyafterpreliminarysurfacetreatment

15、,thenrepairpaintingasperthewholesetofpaintingrepairsystemandarrivethedesignedfilmthickness.Forsmallarea,brushpaintingshallbeused.Butspraycoatingshallbeusedformid-coatingandfinalcoatingwhenmorecoatingareasconnectedtogether.Brushingstylewillbetakentothetouchupworkstoensuretheappearanceofthecoating.对于焊

16、缝区域或者涂层损坏区域：应用动力砂纸片将焊缝区域和涂层损坏区域打磨处理到St3级（被损坏的涂层应完全清除），管道焊口采用手持式喷砂机，除锈等级Sa2.5。损坏区域与完好区域涂层应的边缘部位应砂磨出搭接坡度，搭接区域的原涂层应砂磨漏出新鲜的涂层表面，以增加修补涂层与原涂层的结合力。修补位置基层表面处理结束后，应充分清洗该表面，然后按修补油漆配套系统进行涂层修补并达到设计要求的干膜厚度。油漆涂层修补采用刷涂，确保修补涂层的外观。对于涂层缺陷，涂层龟裂，涂层污染的部位修补：先砂纸片，砂布或其他方法清除缺陷涂层和严重污染涂层。然后按照对该部位涂层进行砂磨和清洗，并保证搭接涂层边缘一定的搭接坡度和新鲜的

17、涂层表面。再按照修补涂层系统进行修补，涂层修补的其他要求同上节。C、由于固化后的无机锌涂层很难进行自覆涂，因此，对于有缺陷和损坏的无机锌涂层应采用环氧富锌进行修补。D、被修补的涂层或基层表面应清洗干净，无污染物，如存在油污应充分清洗油污（达到SSPC-SP1标准）。E、为确保修补涂层的外观，建议较大面积的涂层采用喷涂的方法施工。注：检查管道外观，对所有在运输、倒运、现场焊接等过程中破坏的涂漆用记号笔做好标记，并标记出打磨处理的范围。确定现场焊口，未试压管段焊口以及不锈钢管的具体的位置。做好标记。2、SurfacePreparation表面处理Surfacepreparationbeforepa

18、inting涂漆前的表面处理Surfacepreparationrequest:grade.St3,thoroughrustremovalbyhandorpowermachineorarriveGradeSa2.5bymechanicalrustremoval.表面处理粗糙度要求：St3级彻底的手工和动力工具除锈或者采用机械除锈达到Sa2.5级。Treatmentbyhand:Unwoundscale,rustandagingcoatingonpipescanberemovedinusingwirebrushorrubberpaperormanualmachineorspade.人工处理：管道

19、表面上松散的氧化皮、锈蚀和老化涂层可用钢丝刷刷掉、砂皮纸砂去、用手工工具刮掉或铲除Powertreatment:Itsbettertousepowermachinethanmanualmachinewhenremovingscale,rustoragingcoating.Butitcantbeusedtoremovetherustorscaleattachedtopipesurfacefirmly.Normallyusedpowermachineincludes:wirebrush,impulsetools,grindingmachineandrubbersharpeningmachine.P

20、aymoreattentionnottopolishthemetalsurface,especiallywhenusingpowerwirebrush,oritwilldestroytherequiredsurfaceroughness.动力处理：在清除松散的氧化皮、锈蚀和老化涂层时，用动力工具比用人工效果好，而且省力。但是动力工具不能除去紧紧附着在管道表面的锈蚀和氧化皮。通常采用的动力工具，包括钢丝刷、冲击工具、砂轮机及砂皮磨光机。但是必须注意，不要抛光金属表面，尤其是在使用动力钢丝刷时，否则会破坏涂覆所需的表面粗糙度。Forcrackedcoats，grindthecoatinthecra

21、ckareacomletelytoreachrequiredroughness，andthencommercetherepairpaintwork。对于龟裂的涂层，需将龟裂处涂层彻底打磨，并达到规定的粗糙度要求后再进行油漆的修补。Forcrackedandslightlyscratchedcoats，donotgrindtoohard。OnlygrindtothebasecoatforrepairingwithInterthane990top-coat。对于轻微损伤的涂层，不需打磨过深，只需要适度打磨即可进行修补，可直接用Interthane990面漆。Therepairingareashou

22、ldhave3050mmadjoiningareawiththepre-existingcoat。Thegrindingshouldhavesomegradienttoinsuretherepairedcoatconnectswellwiththepre-existingcoat。修补区域与原有涂层有3050mm的搭接，要求打磨成一定的坡度，用于修补涂层与原有涂层平滑过渡。3、Painting涂漆 Paintingmustbedoneinaniceweather;doinginraining,fogging,snowingandheavydustisforbidden.涂料须选择在晴好天气的条

23、件下施工，在雨，雾，雪和较大灰尘的条件下禁止施工。Ensurethesurfacetobepaintedisclean.Thesurfacecanbecleanedwithdustcollectororbrushetc.Thesametreatmentshallbedoneagainaftereachfilmisdry.Thennextcoatingcanbeapplied.涂料表面必须保证清洁干净。涂漆前用吸尘器，刷子等清理干净，每层涂膜干燥后需经同样处理后，方可涂下一层涂料。Ensuretheseperationfromothercomponentsaroundintheeventthatanycontaminationoccurpriortopainting,andespeciallymuchattentiontogroundpretectionshallbetakenincaseofanysoilpollution.Separateingmaterialcanusetape（smallrange）,colorclothingandwoodboard.涂漆前必须对周围其