【英文标准名称】:StandardSpecificationforAluminumParticle-FilledBasecoat/OrganicorInorganicTopcoat,CorrosionProtectiveCoatingsforFasteners
【原文标准名称】:紧固件用非有机顶涂层,防腐蚀涂层的铝颗粒填充底涂层/有机物
【标准号】:ASTMF1428-1992(2005)
【标准状态】:现行
【国别】:
【发布日期】:1992
【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】:F16.03
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:防腐蚀;涂料;紧固件
【英文主题词】:
【摘要】:1.1Thisspecificationcoversthebasicrequirementsforacorrosion-resistantcoatingconsistingofaninorganicaluminumparticle-filledbasecoatandanorganicorinorganictopcoat,dependingonthespecificrequirements.1.2Thecoatingmaybespecifiedwithbasecoatonly,orwiththetopcoatedwithcompatibleorganicpolymerorinorganictopcoats,dependingonthespecificrequirements.1.3Thebasecoatisawater-dilutableslurrycontainingaluminumparticlesdispersedinaliquidbinderofchromate/phosphatecompounds.1.4Theorganictopcoatsconsistofpolymerresinsanddispersedpigmentsandareforservicewheretemperaturesdonotexceed230C(450F).1.5Theinorganictopcoatsconsistofceramicoxidepigmentsdispersedinaliquidbinderofchromate/phosphatecompoundsandareforservicewheretemperaturesdonotexceed645C(1200F).1.6Thesecoatingsareappliedbyconventionaldip/spin,dip/drain,orspraymethods.1.7Thecoatingprocessdoesnotnormallyinducehydrogenembrittlement,providedthatthepartstobecoatedhavenotbeensubjectedtoanacidcleanerorpretreatment(seeNote1).Note18212Althoughthiscoatingmaterialcontainswater,ithasarelativelylowsusceptibilitytoinducinghydrogenembrittlementinsteelpartsoftensilestrengthsequaltoorgreaterthan1000MPa(approximatelyRC31).Normalprecautionsforpreparing,descaling,andcleaningsteelsofthesetensilestrengthsmustbeobserved.Aninitialstressrelieftreatmentshouldbeconsideredpriortoanychemicaltreatmentorcleaningoperation.Acidsorothertreatmentsthatevolvehydrogenshouldbeavoided.Mechanicalcleaningmethodsmaybeconsidered.Somesteelsaremoresusceptibletohydrogenembrittlementthanothersandmayalsorequirehydrogenembrittlementreliefbakingaftercleaningbutbeforecoating.Sincenoprocesscancompletelyguaranteefreedomfromembrittlement,carefulconsiderationmustbegiventotheentirecoatingprocessandthespecificsteelalloyemployed.1.8Thecoatingsystemsdefinedbythisspecificationcanbeappliedtoferrousalloysteels,aluminum,andferriticandausteniticstainlesssteels.1.9ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.Thefollowingsafetyhazardscaveatpertainsonlytothetestmethodsportion,Section6,ofthisspecification:Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:J13
【国际标准分类号】:87_040
【页数】:3P.;A4
【正文语种】: