SMTC 5 100 001 金属表面保护要求(20130614)

©上汽集团版权所有秘密文件注意保密CopyrightSAICMOTORConfidential上海汽车集团股份有限公司技术中心企业EnterpriseStandardofSAICMOTORTechnicalCenterSMTCSMTC5100001－2013（V2）代替SMTC5100001－2011（V1）金属表面保护要求Therequirementsforsurfaceprotectionofmetalparts2013-06-14发布/Issue2013-06-15实施/Implementation上汽集团技术中心技术标准化委员会TechnicalStandardizationCommitteeofSAICMOTORTechnicalCenter发布IssueSMTC5100001—2013（V2）I©上汽集团版权所有秘密文件注意保密CopyrightSAICMOTORConfidential前言为规范金属零件的表面保护的方式和技术要求，包括处理工艺、技术规范要求、相应的符号含义等，特制定本标准。本标准是对SMTC5100001—2011（V1）的修订,自本标准实施之日起废除SMTC5100001—2011（V1）与上一版标准相比以下章节进行修订：--格式架构的调整--删除含六价铬的表面保护方式代号请注意本文件的某些内容可能涉及专利，上汽集团不承担识别这些专利的责任。当中英文产生疑义时，以中文为准。本标准由材料分标委提出。本标准由SMTC技术标准化委员会批准。本标准由标准化工作组负责标准化审核及归口管理。本标准起草部门：质保部中心实验室。本标准主要起草人：虞莲雯，缪苗，杨如松。本标准于2011年12月08日首次批准发布，2011年12月09日实施。本次为第2次修订。本版本所代替标准的历次版本发布情况为:——SMTC5100001-2011（V1）。ForewordThisstandardisestablishedforsurfaceprotectionmethodincludingtreatmentprocess,technicalrequirementandcorrespondingcodemeanings.ThisstandardisarevisionforSMTC5100001–2011(V2).ThisstandardwillreplaceSMTC5100001–2011(V2)fromtheimplementationdate.Thechaptersrevisedinthisversionisdescribedasfollows:--adjustthestructureofthisstandard--deletethesurfaceprotectiontypewhichcontainingCr(VI)Pleasenotethatsomecontentsinthisdocumentmayrelatetopatentrights,whichSAICGroupshallnotbeheldresponsibleforidentifyinganyorallsuchpatentrights.ThisstandardisinChineseandEnglish.Ifindoubt,theChineseversionistheMaster.Thisstandardwasproposedbymaterialsub-committee.ThisstandardwasapprovedbytheSMTCTechnicalStandardizationCommittee.TheStandardizationWorkingTeamisresponsibleforthestandardizationapprovalandoverallmanagementofthisstandard.Thedraftdepartmentofthisstandard:CentralLaboratory.Themaindraftersofthisstandard:YULianwen,Miaomiao，YangRusong.ThisstandardwasfirstapprovedandissuedonDec,082011anditwillbeimplementedonDec,09,2011.Thisisthesecondrevision.Theversionssupersededbythisstandard:——SMTC5100001-2011（V1）.SMTC5100001—2013（V2）1©上汽集团版权所有秘密文件注意保密CopyrightSAICMOTORConfidential金属表面保护要求Therequirementsforsurfaceprotectionofmetalparts1范围本标准规定了金属零件的表面保护的方式和技术要求，包括处理工艺、技术规范要求、相应的符号含义等。本标准适用于图纸以及技术资料中标记的汽车金属类零部件的一般表面防护形式的标记方式及要求。1ScopeThisstandardspecifiesrequirementforsurfaceprotectionincludingtreatmentprocess,technicalrequirementandcorrespondingcodemeanings.Thisstandardappliestotheidentificationofgeneralsurfaceprotectiontypesofvehiclepartsandunitsindrawingsandtechnicaldocumentation.2规范引用文件下列文件对于本标准的应用是必不可少的。凡是注日期的引用文件，仅注日期的版本适用于本文件。凡是不注日期的引用文件，其最新版本（包括所有的修改单）适用于本标准。2ReferencestandardsThefollowingreferenceddocumentsareindispensablefortheapplicationofthisstandard.Fordatedreferences,onlytheeditioncitedapplies.Forundatedreferences,thelatesteditionofthereferencedstandard(includinganyamendments)applies.SMTC5100002锌镀层；表面防护要求SMTC5100002ZincCoating;SurfaceProtectionRequirementSMTC5100003锌/镍-合金镀层；表面防护要求SMTC5100003Zinc/NickelAlloyCoating;SurfaceProtectionRequirementSMTC5100004非电解的涂锌薄片涂层；表面防护要求SMTC5100004Non-electrolyticZinclaminaCoating;SurfaceProtectionRequirementSMTC5100005非电解的涂有锌薄片涂层，带装饰涂层；表面防护要求SMTC5100005Non-electrolyticZinclaminaCoatingwithDecorativeCoating;SurfaceProtectionRequirementSMTC5100008富锌漆涂层；表面防护要求SMTC5100008CoatingwithZincPowderColor;SurfaceProtectionRequirementSMTC5100009铝件表面的氧化层；表面防护要求SMTC5100009OxideCoatingofSurfacesofAluminumParts;SurfaceProtectionRequirementSMTC5100010与车身同色的多层喷漆的金属车身外装件；技术要求SMTC5100010MetalExteriorDecorativePartsofCarBodiesofMultipleCoatingwiththeSameColoroftheCarBody;TechnicalRequirementSMTC5100011金属表面涂漆；表面防护要求SMTC5100011PaintSprayingonMetalSurfaces;SurfaceProtectionRequirementSMTC5100012镀锌金属表面的涂漆；材料技术要求SMTC5100012PaintSprayingonGalvanizedMetalSurfaces;TechnicalRequirementSMTC5100013金属表面的粉末喷漆；表面防护要求SMTC5100013PowderPaintSprayingonMetalSurfaces;SurfaceProtectionRequirementSMTC5100014电镀Ni-Cr-镀层；表面防护要求SMTC5100014ElectroplateNi-CrCoating;SurfaceProtectionRequirementSMTC5100001—2013（V2）2©上汽集团版权所有秘密文件注意保密CopyrightSAICMOTORConfidentialSMTC5100021与镁接触的连接元件的涂层；技术要求SMTC5100021CoatingofPartsinContactwithMagnesium;TechnicalRequirementSMTC5100023批量生产的双层-镀层系统；Zn-镀层或者Zn/Ni-合金镀层加KTL；表面防护要求SMTC5100023MassProducedDouble-layer-CoatingSystem;Zn-CoatingorZn/Ni-AlloyCoatingPlusKTL;SurfaceProtectionRequirementSMTC5200010车身及零部件的腐蚀交变试验SMTC5200010Bodyandadd-onpartscorrosiontestSMTC5500001汽车零件和材料中禁用/限用危险物质SMTC5500001Automotiveprohibited/restrictedhazardoussubstancespartsandmaterialsISO2409油漆和清漆－划格试验ISO2409PaintandClearLacquer－CrossCutTestISO4287连接元件；电镀涂层ISO4287ConnectingComponentsGalvanizedCoating;ISO6270-2油漆和清漆–耐湿度测定–第2部分：试样在冷凝水环境中的暴露测试操作步骤ISO6270-2Paintsandvarnishes–DeterminationofResistancetoHumidity–Part2:ProcedureforExposingTestSpecimensinCondensation-WaterAtmospheresISO9227人工条件下的腐蚀试验；盐雾试验箱ISO9227CorrosionTestsinArtificialAtmospheres–SaltSprayTestsDIN50938钢铁材料的结构件的发蓝处理；技术要求和试验方法DIN50938BluingofConstructionPartsofFerrousMaterial;TechnicalRequirementandTestMethodsDIN50965电镀层；在铁-和铜材料表面上的锌镀层DIN50965GalvanizedCoating;ZincCoatingonSurfacesofIronandCopperMaterialDIN50969高强度钢制件的耐氢工业脆化稳定性；通过拉伸试验和预防性的措施加以验证DIN50969High-strengthSteelParts'HydrogenResistantIndustrialEmbrittlementStability;VerificationthroughTensileTestsandPreventiveMeasuresDINEN12476金属表面的磷化层；确定技术要求的方法DINEN12476PhosphateCoatingofMetalSurfaces;DeterminingMethodsRequiredbyTechnology3标记3Identifications3.1缩写的组成表面防护（SP）的标记按图1，由四部分的缩写组成。3.1CompositionofabbreviationsTheidentificationofsurfaceprotection(SP)shallbepursuanttofigure1,anditiscomposedofabbreviationsoffourparts.SMTC5100001—2013（V2）3©上汽集团版权所有秘密文件注意保密CopyrightSAICMOTORConfidential后处理方式：Posttreatmentmethod防护等级：Protectionlevel处理方式：Treatmentmethod表面防护标记：Surfaceprotectionidentification图1Figure3.2标记举例锌－镍－镀层，黑色无铬（VI）钝化处理，且另外作封闭处理。重级防护。按SMTC5100003：SP-RH73。3.2ExamplesforidentificationZinc/nickelcoating,depositedfromalkalineelectrolytes,blackCr(VI)-freepassivityandadditionallysealed.Corrosionresistance,highlevel.Usingthesurfaceprotectiontype按SMTC5100003：SP-RH73.4技术要求4TechnicalRequirements4.1基本要求4.1Generalrequirements4.1.1由各设计开发部门，按照汽车零部件在不同部位的耐腐蚀载荷要求，进行级别划分；开发部门和中心实验室根据零件的实际使用情况选用合适的表面防护工艺；由中心实验室提供技术支持并承担零件的实验认可工作。4.1.1DesignandDevelopmentDepartmentsshallgradesaccordingtotheanticorrosionbehaviorsofautomobilepartsandcomponentsatdifferentpositions;Thedevelopmentdepartmentsandcenterlaboratoryshallselectappropriatesurfaceprotectiontechnologyaccordingtotheuseofcomponents;Thecenterlaboratoryshallprovidetechnicalsupportandundertakethetestsandratificationofthecomponents.4.1.2防腐等级划分：a)轻度防护（L级）：其腐蚀防护只针对于零部件的运输过程，且装配不外露的零件。b)中度防护（M级）：主要用于安装位置具有防护要求的汽车内饰零部件或外饰不可见零件。c)重度防护（H级）：其主要用于暴露在车外，直接受到大气腐蚀的零部件（例如，底盘、发动机仓靠近热源和底部的零件）；在装配状态下，（从车的下部）观察，可见的零部件。4.1.2ClassificationofAnticorrosionGrades:a)Slightprotection(LevelL):Itscorrosionprotectiononlyaimsatthetransportprocessofthecomponengtsandparts,andtheelementswhosefittingsarenotexposed.b)Mediumprotection(LevelM);Itmainlyaimsattheautomotiveinteriortrimmingpartsandcomponentswhosemountingpositionshaveprotectionrequirementortheinvisibleexteriorpartsandcomponents.c)Seriousprotection(LevelH);Itmainlyaimsatthepartsandcomponentsexposedoutsidetheaumobilesandsufferatmosphericcorrosion(suchaschassis,andthepartsoftheenginecabinisneartheheatsourceorbottom),andthevisiblepartsandcomponentsunderassemblingstate(observedfromtheautomobile'sunderpart).SMTC5100001—2013（V2）4©上汽集团版权所有秘密文件注意保密CopyrightSAICMOTORConfidential4.1.3各整车零部件相应的耐腐蚀要求，见表1。4.1.3Thecorrespondinganticorrosionrequirementofthepartsandcomponentsoftheentireautomobile,seeTable1.表1整车各部位零件相应的耐腐蚀要求Table1Theanticorrosionrequirementofthepartsandcomponents零件所在的位置Parts’positions腐蚀载荷Corrosionload腐蚀等级Corrosionlevel常用的防腐方式Commonanticorrosionmethods基本耐腐蚀要求Generalanticorrosionrequirement车身内部Interiorofcarbody不可见Invisible中度防护MediumprotectionM级LevelMCM40～CM47盐雾试验DINENISO9227：96h无金属基体腐蚀（不可见）144h无金属基体腐蚀（可见）Saltspraytest:96h,nobasemetalcorrosion(invisible)144h,nobasemetalcorrosion(visible)可见Visible电泳漆或喷漆：XM30Cathodicelectrocoatingorliquidpaint:XM30车身外饰件Exteriortrimmingparts电镀重度防护(不可见)Seriouselectroplatedprotection(Invisible)H级LevelHCH43盐雾试验DINENISO9227：360h无金属基体腐蚀Saltspraytest:360h,nobasemetalcorrosion重度防护（可见）Seriousprotection(Visible)H级LevelH锌镍合金：Zincnickelalloy:RH43（外观银色、非螺纹件）RH43(silver,non-screw)RH47（外观银色、紧固件）RH47silver,fasteners)RH73（外观黑色、非螺纹件）RH73(Black,non-screw）RH77（外观黑色、紧固件）RH77(Black,fasten)盐雾试验ISO9227:720h无金属基体腐蚀Saltspraytest:720hnobasemetalcorrosion车身外饰件Exteriortrimmingparts锌薄片涂层：Zinc-flakecoating:TH07（外观银灰色、非螺纹件）TH07(silver,non-screw)TH27（外观银灰色、紧固件）TH27(silvergray,fasteners)电泳漆或喷漆：XH36（外观为黑色）Cathodicelectrocoatingorliquidpaint:XH36（外观为黑色）耐腐蚀循环试验SMTC5200010：≥30个循环Anticorrosioncycletest:≥30cyclesSMTC5100001—2013（V2）5©上汽集团版权所有秘密文件注意保密CopyrightSAICMOTORConfidential表1整车各部位零件相应的耐腐蚀要求(续)Table1Theanticorrosionrequirementofthepartsandcomponent（continued）零件所在的位置Parts’positions腐蚀载荷Corrosionload腐蚀等级Corrosionlevel常用的防腐方式Commonanticorrosionmethods基本耐腐蚀要求Generalanticorrosionrequirement底盘Chassis重度防护Seriousprotection6级LevelVI锌镍合金：RH43（外观银色、非螺纹件）RH43(silver,non-screw)RH47（外观银色、紧固件）RH47(silver,fasteners)RH73（外观黑色、非螺纹件）RH73(black,non-screw)RH77（外观黑色、紧固件）RH77(black,fasters)锌薄片涂层：Zincnickelalloy:TH07（外观银灰色、非螺纹件）TH07(silver,non-screw)TH27（外观银灰色、紧固件）TH27(silvergray,fasteners)盐雾试验DINENISO9227:720h无金属基体腐蚀Saltspraytest:720hnobasemetalcorrosion重度防护Seriousprotection6级LevelVI电泳漆、喷漆或喷粉：XH30～XH34、XH50（外观黑色）Cathodicelectrocoating,liquidpaintorpowderspraying:XH30～XH34,XH50（black）耐腐蚀循环试验SMTC5200010：30～60个循环Anticorrosioncycletest:≥30cycles发动机仓Enginecabin干燥且不靠近热源区域dryarea,notclosetoheatsource电镀重度防护Seriouselectroplat-edprotection6级LevelVICH43盐雾试验DINENISO9227:240h无金属基体腐蚀Saltspraytest:240h,nobasemetalcorrosion靠近热源或靠近底部区域closetoheatsourceorbottom重度防护Seriousprotection6级LevelVI锌镍合金：Zincnickelalloy:RH43（外观银色、非螺纹件）RH43(silver,non-screw)RH43（外观银色、紧固件）RH43(silver,fasteners)RH73（外观黑色、非螺纹件）RH73(black,non-screw)RH77（外观黑色、紧固件）RH77(black,fasters)锌薄片涂层：Zinc-flakecoating:TH07（外观银灰色、非螺纹件）TH07(silver,non-screw)TH27（外观银灰色、紧固件）TH27(silvergray,fasteners)电泳漆或喷漆：XH30～XH34（外观黑色）Cathodicelectrocoatingorliquidpaint:XH30-XH34(blackappearance)盐雾试验DINENISO9227:720h无金属基体腐蚀Saltspraytest:720hnobasemetalcorrosion耐腐蚀循环试验SMTC5200010：30～60个循环Anticorrosioncycletest:30-60cyclesSMTC5100001—2013（V2）6©上汽集团版权所有秘密文件注意保密CopyrightSAICMOTORConfidential4.2图纸或技术要求中的说明4.2Noteinthedrawingortechnicalrequirement如果整个零件或总成中的若干零件需要确定的表面防护，则应在图纸中注明每一部分零件需要的表面处理方式，例如，SP-RH73；如果可以选择使用几种表面防护方式，那么就要给出所有允许的处理方式的缩写，例如，SP-RH73/XH30。Ifthewholepartsorsomepartsoftheassemblyneeddefinitesurfaceprotection,thenthesurfacetreatmentmethodrequiredbyeachpartshallbenotedinthedrawing,forexample,SP-RH30ifseveralsurfaceprotectionmethodsareoptional,thentheabbreviationsofallthepermissibletreatmentmethodsshallbegivenout,forexample,SP-RH73/XH304.3可焊接性4.3Solderability经过表面防护处理的零件，有时需要相互焊接或与其他金属零件焊接，所以要检验它们的可焊接性。在底盘结构中规定CM40为标准的表面防护形式（例如，焊接螺母）。Thepartshavingundergonesurfaceprotectiontreatmentsometimesneedsolderingwitheachotherorwithothermetalparts,sotheirsolderabilityshallbechecked.Forchassisstructure,itisstipulatedthatCM40shallbethestandardformofsurfaceprotection(forexample,solderingscrewnut).4.4摩擦特性4.4Frictioncharacteristic表面防护对零件摩擦特性的影响，尤其是对米制ISO-螺纹件，要通过试验确定和通过使用特性来调整。Surfaceprotection'sinfluenceonparts'frictioncharacteristic(especiallyonISO-screwelementsofmetricsystem)shallbedeterminedbytestsandadjustedbyusecharacteristics.4.5连接特性4.5Connectioncharacteristics表面防护处理在连接件中的配合度，需要通过试验和调整后确定。Thedegreeofadaptabilityofsurfaceprotectiontreatmentinconnectingpiecesshallbedeterminedbytestsandadjustment.4.6螺母、螺栓和螺纹件4.6Screwnuts,boltsandscrewelements螺栓、螺母和类似的螺纹件，其非螺纹面的表面防护方式和实验结果评判按照表格2，螺纹面的实验结果评判比非螺纹面低一个防护等级。Forbolts,screwnutsandsimilarscrewpieces,theirnon-threadsurfaces'surfaceprotectionmethodandtestresultjudgeshallbepursuanttoTable2,andthetestresultjudgeofthethreadsurfacesshallbeoneprotectionlevellowerthanthatofthenon-threadsurface.4.7锌镀层和锌合金镀层4.7Zinccoatingandzincalloycoating4.7.1对于抗拉强度Rm>1000MPa的高强度钢件和标准件、以及强度等级≥10.9的螺纹件，不应使用电解/电镀离析的镀层方式，应主要使用锌薄片涂层工艺。4.7.1Forhigh-strengthsteelpartswhosetensilestrengthRm>1000MPaandstandardpartsaswellasthescrewelementswhosestrengthlevelis≥10.9,theelectrolysis/electroplatesegregativecoatingmethodshallnotbeused,andthezinclaminacoatingtechnologyshallbemainlyused.4.7.2为了改善耐腐蚀特性，电解镀锌和锌合金涂层的零件可以使用钝化作为后续处理。但是则不应使用含Cr(VI)的铬酸盐钝化。4.7.2Inordertoimproveanticorrosioncharacteristics,deactivationcanbeusedasposttreatmentforelectrolyticzincingandzincalloycoatedparts.ButcontainingtheCr(VI)notSMTC5100001—2013（V2）7©上汽集团版权所有秘密文件注意保密CopyrightSAICMOTORConfidentialpermitted.4.8表面防护方式和耐腐蚀要求4.8Surfaceprotectionmethodandanticorrosionrequirement4.8.1应根据零件所属的整车部位，选择适合的表面防护方式。4.8.1Appropriatesurfaceprotectionmethodshallbeselectedaccordingtotheparts'positionsontheentirecar.4.8.2表面防护方式及耐腐蚀要求，见表格2和表格3。4.8.2Forsurfaceprotectionmethodandanticorrosionrequirement,seeTable2and3.4.9锌铝涂覆涂层4.9Zinclaminacoatingtlayer锌铝薄片涂层不应使用在有导电要求的零件上。Thecoatinglayershallnotapplytothepartshavingconductionrequirement.4.10禁限危险物质4.10ProhibitedrestrictedHazardoussubstances禁用限用危险物质要求需SMTC5500001标准。ProhibitedrestrictedHazardoussubstancesshouldmeetSMTC5500001.SMTC5100001—2013（V2）1©上汽集团版权所有秘密文件注意保密CopyrightSAICMOTORConfidential表2零件表面防护方式及耐腐蚀要求--无机镀层部分Table2Protectionmethodsandanticorrosionrequirementsofparts’surfaces-inorganiccoatingpart镀层方法Coatingmethods标识字母code防护方式Protectionmethods适用零件Applicableparts防腐等级的划分和要求Classificationandrequirementofanticorrosionlevels其他要求Otherrequirements后续处理及外观Posttreatmentandappearance136轻级Light主要腐蚀试验要求（下列时间指中性盐雾试验时间）GeneralanticorrosionrequirementThefollowingtimereferstoneutralsaltspraytesttime中级middlelevel主要腐蚀试验要求（下列时间指中性盐雾时间）GeneralanticorrosionrequirementThefollowingtimereferstoneutralsaltspraytesttime重级highlevel主要腐蚀试验要求（下列时间指中性盐雾时间）GeneralanticorrosionrequirementThefollowingtimereferstoneutralsaltspraytesttime镀锌zincelectroplatedSMTC5100002c无后续处理withoutposttreatment钢制件上的电解镀锌工艺不适用于高强度零件、工作环境温度高于100℃的零件；也不适用于和镁接触的零件Zinc-electroplatedprocessonsteelpartsdoesnotapplytohigh-strengthpartsandthepartswhoseworkingenvironmenttemperatureishigherthan100℃,anditdoesnotapplytothepartsincontactwithmagnesium.——CM3048h无金属基体腐蚀3）48h,nobasemetalcorrosionCH3096h无金属基体腐蚀3）96h,nobasemetalcorrosion1）防腐等级3级的镀层厚度要求：普通构件：8～35μm焊接件（如粗螺纹销）：8～14μm2）防腐等级6级的镀层厚度要求：普通构件：15～35μm焊接件（如粗螺纹销）：15～23μm1)CoatingthicknessrequirementofanticorrosionlevelIII:Generalcomponents:8～35μmWeldingpieces(suchascoarsethreadpins):8～14μm2)CoatingthicknessrequirementofanticorrosionlevelVI:无后续处理withoutposttreatment——CM1048h无金属基体腐蚀3）48h,nobasemetalcorrosion——钝化passivated——CM4096h无金属基体腐蚀3）96h,nobasemetalcorrosionCH40168h无金属基体腐蚀3）168h,nobasemetalcorrosion钝化和封闭层passivatedandsealed——CM41144h无金属基体腐蚀3）144h,nobasemetalcorrosionCH41240h无金属基体腐蚀3）240h,nobasemetalcorrosion厚层钝化thick-layerpassivated——CM42168h无金属基体腐蚀3）168h,nobasemetalcorrosionCH42厚层钝化和封闭涂层thick-layerpassivatedandsealed——CM43240h无金属基体腐蚀3)240h,nobasemetalcorrosionCH43360h无金属基体腐蚀3)360h,nobasemetalcorrosion厚层钝化和润滑剂处理thick-layerpassivatedwithlubricanttreatment———CM47168h无金属基体腐蚀168h,nobasemetalcorrosionCH47240h无金属基体腐蚀3)240h,nobasemetalcorrosion电解镀铬Chromiumelectroplatedf高光泽度的，微裂纹Mirror-brightwithmicrocracks适用于在基体金属（锌、铝、钢铁、铜）通过电解镀铬，使零件具有表面装饰性和功能性Theyapplytobasemetal(zinc,aluminum,ironandsteel,copper)thatmakepartshavesurfacedecorationandfunctionalitythroughelectroplatedchrome——-——FH20480h无金属基体腐蚀480hnobasemetalcorrosionf620:醋酸铜盐雾试验（CASS）48h无基体电解镀铬金属腐蚀f620:Copperacetatesaltspraytest(CASS):48h,nobasemetalcorrosion高光泽度Mirror-bright——FM5096h无金属基体腐蚀96hnobasemetalcorrosionFH50480h无金属基体腐蚀480hnobasemetalcorrosionf650:醋酸铜盐雾试验（CASS）48h无基体金属腐蚀f650:Copperacetatesaltspraytest(CASS):48h,nobasemetalcorrosionSMTC5100001—2013（V2）2©上汽集团版权所有秘密文件注意保密CopyrightSAICMOTORConfidential表2零件表面防护方式及耐腐蚀要求--无机镀层部分（续1）Table2Protectionmethodsandanticorrosionrequirementsofparts’surfaces-inorganiccoatingpart(continued1)镀层方法Coatingmethods标识字母code防护方式Protectionmethods适用零件Applicableparts防腐等级的划分和要求Classificationandrequirementofanticorrosionlevels其他要求Otherrequirements后续处理及外观Posttreatmentandappearance136轻级Light主要腐蚀试验要求（下列时间指中性盐雾试验时间）Generalcorrosiontestrequirement(Thefollowingtimereferstoneutralsaltspraytesttime)中级medium主要腐蚀试验要求（下列时间指中性盐雾试验时间）Generalcorrosiontestrequirement(Thefollowingtimereferstoneutralsaltspraytesttime)重级heavy主要腐蚀试验要求（下列时间指中性盐雾试验的时间）Generalcorrosiontestrequirement(Thefollowingtimereferstoneutralsaltspraytesttime)电解锌镍合金Zinc-alloyelectroplatedSMTC5100003r透明钝化Transparentpassivated适用于高腐蚀区域的零件；适用于连接件紧固件；也适用于导电零件（如接地零件）；但不适用于高强度零件；也不适用于需耐高温零件（工作温度大于150℃的发动机仓和刹车部位）Theyapplytopartsinhighcorrosionarea,connectingpiecesandfasteners,andconducingparts(suchasearthlingparts),butdonotapplytohigh-strengthpartsorhightemperatureparts(suchas,enginecabinandbrakingpartswhichworkingtemperatureishigherthan150℃)————RH42720h无金属基体腐蚀720hnobasemetalcorrosion1）对于拧紧元件和快速紧固元件的螺杆区域和螺纹区域，适用的盐雾试验要求：母体金属在480h的试验时间后无腐蚀。2.温度突变试验（DINENISO2819）：试件在（300±10）℃下存放30分钟，紧接着浸入温度为15℃至25℃的水中。要求：锌涂覆层没有气泡状或大面积的剥落。Forthetightenedupcomponentsandquicklyfastenedelements'screwareaandthreadarea,theapplicablesaltspraytest'srequirementsareasfollows:480hnobasemetalcorrosion.Temperatureshocktest(DINENISO2819):Thetestpiecesshallbestoredat300±10）℃for30minutes,andthentheyshallbeimmersedinwaterof15℃to25℃.Requirement:zinccoatinglayerhasnogasbubbleortobeextensivestripped.2）镀层厚度要求：普通构件：8～25μm螺纹件：8～15μm3）镍含量：12～16%2)Coatingthickness:Generalcomponents:8-35μmScrewelements8-15μm3)Nickelcontent:12-16%透明钝化，封闭层Transparentpassivated,sealed————RH43720h无金属基体腐蚀720hnobasemetalcorrosion透明钝化，封闭层，润滑剂处理transparentpassivated,sealed,withlubricant————RH47720h无金属基体腐蚀720hnobasemetalcorrosion透明钝化，仅用于铸件transparentpassivated,onlyforcastings————RH49720h无金属基体腐蚀720hnobasemetalcorrosion黑色钝化Blackpassivated————RH72720h无金属基体腐蚀720Nobasemetalcorrosion黑色钝化，封闭涂层Blackpassivated,sealed————RH73720h无金属基体腐蚀720Nobasemetalcorrosion黑色钝化，封闭层，润滑剂处理Blackpassivated,sealed,withlubricanttreatment————RH77720h无金属基体腐蚀720NobasemetalcorrosionSMTC5100001—2013（V2）3©上汽集团版权所有秘密文件注意保密CopyrightSAICMOTORConfidential表2零件表面防护方式及耐腐蚀要求--无机镀层部分（续2）Table2Protectionmethodsandanticorrosionrequirementsofparts’surfaces-inorganiccoatingpart(continued2)镀层方法Coatingmethods字母标识code防护方式Protectionmethods适用零件Applicableparts防腐等级的划分和要求Classificationandrequirementofanticorrosionlevels其他要求Otherrequirements后续处理及外观Posttreatmentandappearance136轻级Light主要腐蚀试验要求（下列时间指中性盐雾试验时间）Generalcorrosiontestrequirement(Thefollowingtimereferstoneutralsaltspraytesttime)中级medium主要腐蚀试验要求（下列时间指中性盐雾试验时间）Generalcorrosiontestrequirement(Thefollowingtimereferstoneutralsaltspraytesttime)重级Heavy主要腐蚀试验要求（下列时间指中性盐雾试验的时间）Generalcorrosiontestrequirement(Thefollowingtimereferstoneutralsaltspraytesttime)双层－涂层（锌或锌/镍加电泳漆KTL）Duplexcoating(zincorzinc/nickelpluscathodicelectrocoating)SMTC5100023s钝化按SMTC21510加电泳漆（KTL），外观黑色DeactivationshallbepursuanttoSMTC5,100,002plusphoresiscoating(KTL),blackappearance适用于已进行电镀处理的小零件和批量生产的零件，进一步提高耐腐蚀性能Theyareusedforelectroplatedsmallpartsandmassproducedpartsforfurtheringcorrosion-resistproperties.————SH11腐蚀交变试验：5循环后零件无任何腐蚀、无起泡、单边扩散小于2.5mm；15循环后无金属基体腐蚀、无起泡；30循环后无金属基体腐蚀，附着力试验小于Gt1Alternatingcorrosiontest:After5cycles,nocorrosion,bubble,andthesinglesidedispersionislessthan2.5mmAfter15cycles,nobasemetalcorrosionorbubble;After50cycles,nobasemetalcorrosion,andtheadhesionresultislessthanGt1—钝化按SMTC5100003加电泳漆（KTL），外观黑色passivatedacc.toSMTC5100003pluscathodicelectrocoating(KTL),black————SH21腐蚀交变试验：15循环后零件无任何腐蚀、无起泡、单边扩散小于1.5mm；30循环后无金属基体腐蚀、单边扩散小于2.5mm、附着力小于Gt1；60循环后单边扩散小于2.5mm、无金属基体腐蚀Alternatingcorrosiontest:After15cycles,nocorrosion,bubble,andthesinglesidedispersionislessthan1.5mm;After30cycles,nobasemetalcorrosion,andthesinglesidedispersionislessth