ASTM B545-1997(2009) 锡电解沉积层的标准规范

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【英文标准名称】:StandardSpecificationforElectrodepositedCoatingsofTin
【原文标准名称】:锡电解沉积层的标准规范
【标准号】:ASTMB545-1997(2009)
【标准状态】:现行
【国别】:美国
【发布日期】:1997
【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】:B08.08.04
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:
【英文主题词】:electrodepositedtin;electroplatedtin;tin;tincoatings;Bendtesting--coatings;Burnishingtest--forcoatingadhesion;Coatingadhesion--electrodepositedcoatings;Copperalloyelectrodepositedcoatings;Electrodepositedcoatings--specifications;
【摘要】:1.1Thisspecificationcoverstherequirementsforelectrodeposited(electroplated)coatingsoftinappliedtometallicarticles.Tincoatingsareusedtoprovidealowcontact-resistancesurface,toprotectagainstcorrosion(see1.2),tofacilitatesoldering,toprovideanti-gallingproperties,andtobeastopoffcoatinginthenitridingofhigh-strengthsteels.1.2Somecorrosioncanbeexpectedfromtincoatingsexposedoutdoors.Innormalindoorexposure,tinisprotectiveoniron,steel,nickel,copper,andtheiralloys.Corrosioncanbeexpectedatdiscontinuitiesinthecoating(suchaspores)duetogalvaniccouplesformedbetweenthetinandtheunderlyingmetalthroughthediscontinuities,especiallyinhumidatmospheres.Porosityincreasesasthecoatingthicknessdecreases,sothatminimumthicknessesmustbespecifiedforeachapplication.Partscoatedwithtincanbeassembledsafelyincontactwithironandsteel,tin-coatedaluminum,yellowchromatedzinc,cadmium,andsoldercoatings.(SeeX5.2foroxidationandcorrosionproperties.)1.3Thisspecificationappliestoelectroplatedcoatingsofnotlessthan99%tin(exceptwheredeliberatelyalloyedforspecialpurposes,asstatedinX6.3)obtainedfromanyoftheavailabletinelectroplatingprocesses(see4.3).1.4Thisspecificationdoesnotapplytohot-dippedtinorothernon-electrodepositedcoating;italsodoesnotapplytomillproducts.Formillproducts,refertoSpecificationsA623orA623M.1.5ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:A29
【国际标准分类号】:25_220_40
【页数】:8P.;A4
【正文语种】:英语