【英文标准名称】:Coatingsonmetalfasteners–Part3:Specificationsforelectroplatedzinccoatings
【原文标准名称】:金属紧固件镀层.第3部分:镀锌涂层规范
【标准号】:BS7371-3-2009
【标准状态】:现行
【国别】:英国
【发布日期】:2009-08-31
【实施或试行日期】:2009-08-31
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:铬酸盐;涂层;转化膜;耐腐蚀性;耐腐蚀材料;名称与符号;电镀;紧固件;金属涂层;金属;防护覆层;厚度;厚度测量;螺距;螺纹紧固件;螺纹;锌
【英文主题词】:Chromates;Coatings;Conversioncoating;Corrosionresistance;Corrosion-resistantmaterials;Designations;Electroplating;Fasteners;Metalcoatings;Metals;Protectivecoatings;Thickness;Thicknessmeasurement;Threadpitch;Threadedfasteners;Threads;Zinc
【摘要】:ThisPartofBS7371specifiesrequirementsforcoatingsappliedbytheelectrolysisofsolutionsofzinc.NOTEThecoatingsconsistprincipallyofzincandcanbelubricatedtogivecontrolledtorque/clampingforcepropertieswhenrequired(see,forexample,BS7371-2).InadditiontotherequirementsinthisPartofBS7371,therequirementsinBS7371-1whichareapplicabletozincelectroplatedcoatingsapply.ThisPartofBS7371alsospecifiesrequirementsfor:a)thecoatingthickness;b)thetypeofconversiontreatmentortopcoattobeapplied;c)qualityassessmentofthecorrosionresistanceofunusedcoatedpartswhensubjectedtoneutralsaltspraytesting(forexampleBSENISO9227);andd)anadhesiontest.ZincelectroplatedcoatingscoveredbythisPartofBS7371areforuseonfastenersandaccessorieswherethefollowingapply:1)Acoatinggivinggalvanicprotectionisrequiredforferrousfasteners.2)Asubstrateisrequiredtoimprovethecorrosionresistanceofsubsequentcoatingsonferrousfasteners,e.g.organic.3)Theriskofhydrogenembrittlementofhightensilesteelfastenersisacceptable.
【中国标准分类号】:J13
【国际标准分类号】:21_060_01;25_220_40
【页数】:20P.;A4
【正文语种】:英语