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Contents!!!!!!!!!!!!#!!!!#$!#$!!#(HDP)!(PVDF)!!!!!!#1335791112131517192931333537394143454651515151515355596163TechnicalManualofPrepaintedSteelSheetsCorporateprofileOverviewofprepaintedsteelsheetIntroductionofusageIntroductionofbasemetalsIntroductionofcoatingsIntroductionofnewproductsTestQualityassuranceServiceguideCorporateprofileOverviewofprepaintedsteelsheetsHistoryofprepaintedsteelsheetsDiagramofmainproductionprocessProcessofprepaintedsteelsheetsProductionlineofprepaintedsteelsheetsCoatingstructureCategory&codingofprepaintedsteelsheetsConstructionHouseholdapplianceTypeCharacteristicsofprepaintedsteelproductsCompositionClassificationCategoryandcharacteristicsoffinishcoatsHigh-durabilitypolyester(HDP)Polyvinylidenefluoride(PVDF)Easy-cleaningAntistaticProcessofcorrosionMethodoftestQualityassuranceServicepromiseAnti-counterfeitprepaintedsteelsheetsOrderMaterialchoiceMachiningStorageandtransportationPacking1335791112131517192931333739414345465151515355596163TechnicalManualTechnicalManualofPrepaintedSteelSheets!#$%Contents=====ContentsTechnicalManualofPrepaintedSteelSheets!#$%&'(!!#)2000231212!#$%&!#$%&'!#$%&'()!#$%&'!#$!!#$%&'!!#$%&'()*+,-./!#$!!#$%&'()*+,-./02004!#$%!#$%!#$%&'()!#$%&'()*+500!#$%&!#$%&'()*+,-!#$%&'!#$!#$%&!#!55!#!#$%!#$%&'()!!#$%CorporateProfileCorporateProfile1TechnicalManualofPrepaintedSteelSheetsBaoshanIron&SteelCo.,Ltd.(hereinafterreferredtoasBaosteel)wasestablishedonFeb.3,2000andlistedonShanghaiStockExchangeonDec.12inthesameyear.Baosteelisthelargestandmostmodernizediron&steelcomplexandalsooneofthemostcompetitivesteelenterprisesintheworld.Athome,Baosteelhasalwaystakentheleadingpositioninmanufacturingandsellingcoldrolledsteelproducts,hotrolledsteelproducts,seamlesssteeltubes,etc.andhasgrownupintothemostinfluentialiron&steelprovidertotheindustriescoveringauto,electricalhouseholdappliances,petroleum,etc.In2004,Baosteelenteredtheinternationalmarketandtookthefirsttorankamongtheworldtop500enterprisesinChina’siron&steelindustry.Baosteelisstrivingforbuildingthelargestandmostmodernizedproductionbaseoffirst-gradeconstructionalsteel,havingtoppingproductionlinesofprepaintedsteelsheetswithadvancedtechnologies,acompletesetofbasemetalproductsinspecifications,agreatdiversityofcoatingsandayearlyoutputof0.55milliontons.Itsproductsarewidelyusedinarchitecture,electricalhouseholdappliance,airport,sportshall,civilianbuilding,factory,etc.BuildBaosteelLtd.intothemostcompetitiveiron&steelenterpriseintheworldCorporateProfile2TechnicalManualofPrepaintedSteelSheets!#$%&'(%)*+,-./012!!1955!#$%&'()*+,!#$!#$%!#$%&'!!#$%&'()*+,-./0-123456!#$%&!#$%&%'()*+!#$%&!#$%!#$%!!#$%&'()*+,$-./!#$!#$!#$%&!#$!#$%&'()*+,-./012!!!#$2004!#$%&'(320!!!PrepaintedSteelSheets3OverviewofPrepaintedSteelSheets!!#$%&!#$%&'()*!#$%&'!!#$%&!#$%#&'()*+,-.!!#$!#$%&'()*+,!!#$!#$%&!#!#!!#$%&'()*!#!#$%!#$#%&'()*$*%+!!#$!#$%&'()*!!!!#$%&'()*+,-!!!#$%&'()*+!#$%&OverviewofPrepaintedSteelSheetsTechnicalManualofPrepaintedSteelSheets!!#$%&'精涂层(Finishedcoating)初涂层(Primer)化学转化层(Chemicalconversioncoating)镀层(Metalliccoating)冷轧板(Cold-rolledsteelsheet)4Prepaintedsteelsheetiscoatedwithorganiclayer,whichprovideshigheranti-corrosionpropertyandalongerlifespanthanthatofgalvanizedsteelsheets.Thebasemetalsforprepaintedsteelsheetconsistofcold-rolled,HDGelectro-galvanizedandhot-dipalu-zinccoated.Thefinishcoatsofprepaintedsteelsheetscanbeclassifiedintogroupsasfollows:polyester,siliconmodifiedpolyesters,polyvinylidenefluoride,high-durabilitypolyester,etc.Theproductionprocesshasevolvedfromone-coating-and-one-bakingtodouble-coating-and-double-baking,andeventhree-coating-and-three-baking.Thecoloroftheprepaintedsteelsheethasaverywideselection,likeorange,cream-colored,darkskyblue,seablue,brightred,brickred,ivorywhite,porcelainblue,etc.Theprepaintedsteelsheetscanalsobeclassifiedintogroupsbytheirsurfacetextures,namelyregularprepaintedsheets,embossedsheetsandprintedsheets.Theprepaintedsteelsheetsaremainlyprovidedforvariouscommercialpurposescoveringarchitecturalconstruction,electricalhouseholdappliances,transportation,etc.SketchMapofSectionalStructureofPrepaintedSteelSheetOverviewofPrepaintedSteelSheetsTechnicalManualofPrepaintedSteelSheetsTheproductionofprepaintedsteelsheetoriginatedintheUnitedStatesinthemid1930s.Atthebeginning,thetechnologywasonlyadoptedinproducingprepaintedsteelstrip.Till1995,thefirstbatchofcoatingequipmentforbroadstripsteelwasinventedandproducedintheUnitedStatesin1955.Inthe1960s,theproductionofprepaintedsteelsheetmadearapiddevelopmentintheUnitedStates,EuropeandJapan.Besides,theprepaintedsteelproductswerealsodevelopedgreatlyallovertheworld.Bytheendofthe1980s,theproductionofprepaintedsteelsheetinChinahadbeenalmostblank.