DIN 675-2011 平埋头铆钉.公差直径3mm至5mm
时间:2024-05-16 11:43:16 来源: 标准资料网 作者：标准资料网 阅读：8398
【英文标准名称】:Flatcountersunkheadrivets-Nominaldiameters3mmto5mm
【原文标准名称】:平埋头铆钉.公差直径3mm至5mm
【标准号】:DIN675-2011
【标准状态】:现行
【国别】:德国
【发布日期】:2011-03
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Dimensions;Fasteners;Flatcountersunkheadrivets;Fullrivets;Indicationofdimensions;Materials;Rivets;Surfaceprotection;Tolerances(measurement)
【摘要】:ThisStandardspecifiesdimensions,massesandtechnicaldeliveryconditionsforflatcountersunkheadrivetswithnominaldiametersfrom3mmto5mm.
【中国标准分类号】:
【国际标准分类号】:21_060_40
【页数】:8P.;A4
【正文语种】:德语
【英文标准名称】:StandardSpecificationforElectrodepositedCoatingsofTin-LeadAlloy(SolderPlate)
【原文标准名称】:锡铅合金的电解沉积镀层(焊接板)
【标准号】:ASTMB579-1973(2009)
【标准状态】:现行
【国别】:美国
【发布日期】:1973
【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】:electrodepositedcoatings,tin-leadalloy(solderplate);solder,tin-leadalloy;tin-lead;Artificialaging;Bendtesting--coatings;Burnishingtest--forcoatingadhesion;Coatingadhesion--electrodepositedcoatings;Copperalloyelectrodepositedcoat
【摘要】:1.1Thisspecificationcoverstherequirementsforelectrodepositedtin-leadcoatingsonfabricatedarticlesofiron,steel,copper,andcopperalloys,toprotectthemagainstcorrosion(Note1),toimproveandpreservesolderabilityoverlongperiodsofstorage,andtoimproveanti-gallingcharacteristics.Note18212;Somecorrosionoftin-leadcoatingsmaybeexpectedinoutdoorexposure.Innormalindoorexposure,tin-leadisprotectiveoniron,copper,andcopperalloys.Corrosionmaybeexpectedatdiscontinuities(pitsorpores)inthecoating.Porositydecreasesasthethicknessisincreased.Aprimaryuseofthetin-leadcoating(solder)iswiththeprintedcircuitindustryasasolderablecoatingandasanetchmaskmaterial.1.2Thisspecificationappliestoelectrodepositedcoatingscontainingaminimumof50%andamaximumof70%tin.Thespecificationappliestomat,bright,andflow-brightenedtin-leadcoatings.Note28212;Tin-leadplatingbathsarecomposedoftinandleadfluoboratesandofadditionagentstopromotestability.Thefinalappearancemaybeinfluencedbytheadditionofproprietarybrighteners.Withoutbrighteners,thecoatingsaremat;withbrighteners,theyaresemibrightorbright.Flow-brightenedcoatingsareobtainedbyheatingmatcoatingstoabovethemeltingpointoftin-leadforafewsecondsandthenquenching;palmoil,hydrogenatedoils,orfatsareusedasaheat-transfermediumatatemperatureof260x00B1;10x00B0;C(500x00B1;20x00B0;F),butothermethodsofheatingarealsoinuse.Themaximumthicknessforflow-brighteningisabout7.5x03BC;m(0.3mil);thickercoatingstendtoreflowunevenly.Theshapeofthepartisalsoafactor;flatsurfacestendtoreflowmoreunevenlythanwiresorroundedshapes(Note3).Note38212;Volatileimpuritiesintin-leadcoatingswillcausebubblingandfoamingduringflow-brighteningresultinginvoidsandroughness.Theimpuritiescanarisefromplatingsolutionadditionagentsandfromimproperrinsingandprocessing.1.3Thisspecificationdoesnotapplytosheet,strip,orwireintheunfabricatedformortothreadedarticleshavingbasicmajordiametersuptoandincluding19mm(0.75in.).
【中国标准分类号】:A29
【国际标准分类号】:25_220_40
【页数】:5P.;A4
【正文语种】:英语
【英文标准名称】:CrossRecessedRaisedCountersunk(Oval)HeadScrews(RaisedCountersunkHeadsofTypeHithertoUsed)
【原文标准名称】:十字槽半沉头(椭圆头)螺钉(目前使用的半沉头形式)
【标准号】:DIN7988-1972
【标准状态】:作废
【国别】:德国
【发布日期】:1972-05
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:紧固件;设计;沉头螺钉;尺寸;螺钉
【英文主题词】:dimensions;fasteners;countersunkheadscrews;screws(bolts);screws;design
【摘要】:
【中国标准分类号】:J13
【国际标准分类号】:3940
【页数】:2P;A4
【正文语种】:德语