ASTM D4145-2010 预涂板涂层柔韧性的标准试验方法

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【英文标准名称】:StandardTestMethodforCoatingFlexibilityofPrepaintedSheet
【原文标准名称】:预涂板涂层柔韧性的标准试验方法
【标准号】:ASTMD4145-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:D01.53
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:coatingflexibility;prepaintedsheet;T-bendflexibility;Prepaintedsteelsheet;Sheetmetal;Deformation--paints/relatedcoatings/materials;Adhesion--paints/relatedcoatings/materials;Flexibility;Metalliccoatings;Organiccoatings;NumberCode87
【摘要】:Organiccoatingsonprecoatedsheetaresubjectedtostresseswhenfabricatedintoproductsbyrollforming,brakebending,orotherdeformationprocesses.Thesestressescanexceedtheflexibilityoradhesivestrengthofthecoating,resultinginfractureofthecoatingwhichexposesthesubstrate,orinthelossofadhesionofthecoatingtothesubstrate.Thistestisameansofevaluatingtheabilityofacoatingsystemtowithstandthestressesoffabrication.Thebenddirection,whethertheaxisofbendistransversetooralongtherollingdirectionofthemetal,andthetemperatureofthespecimenwhenitisbentcanaffecttheresultsofthistestandshouldbeagreeduponbetweenthesupplierandtheuser.1.1Thistestmethoddescribesaprocedurefordeterminingtheflexibilityandadhesionoforganiccoatings(paints)onmetallicsubstratesthataredeformedbybendingwhenthesheetisfabricatedintobuildingpanelsorotherproducts.1.2Themetalsubstratemustbecapableofpassingthistestwithoutfracturingandwithnoexcessivegraindevelopment.1.3Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:A29
【国际标准分类号】:
【页数】:4P.;A4
【正文语种】:英语