锌合金零件无氰仿金装饰电镀

68(1028,550205)[],,,,[];;;;[]TQ153.2[]B[]1001-1560(2005)09-0068-02[]200507010,,,,,,,,,,-0.76V,,,,,,,,11.1,,,,,,,,,,,,1.2NaOH,pH8.510.0:Na3PO41530g/LNa2CO31525g/LOP21013g/L40603060s,13A/dm2,;,,,,1.3,,1%3%HF35s,,;1520mL/L,210s;1%3%HF1%2%H2SO425s,3050g/L1030s,,,1.4,Ni/Cu/Ni,(1)():NiSO47H2O6080g/L69NiCl26H2O1015g/L100120g/LH3BO32035g/LpH6.57.5455513A/dm2NiSO423,Ni(OH)2,,5m,8m,(),(2):CuSO45H2O150200g/LH2SO4(=1.84g/cm3)5070g/L0.010.02g/L(M6000)0.050.10g/L0.050.10g/LCl-2080mg/L1535JC1.53.0A/dm2,,,,812m(3):NiSO47H2O250300g/LNiCl26H2O3050g/LH3BO33040g/LpH4.25.04060JC()0.53.0A/dm2,,,,,pH,,,,,Zn2+20mg/LCu2+2.5mg/LZn2+Cu2+,,,Zn2+Ni2+,2:HEDP(1212)80100mL/LCuSO45H2O3545g/LZnSO47H2O2030g/LNa2CO31525g/L2030g/L12g/LpH12.513.0JC1.02.5A/dm23090s,,Cu2+Zn2+pH33.1,,:12g/L,0.050.10g/L,1530,12min,,,60100,,,,,,3.2,,,,[:]:1.,2005,24(2):44.Keywords:cathodicprotection;usedurbangaspipeline;groundcorro2sionenvironmentScreeningofCoatingsforOutsideCorrosionProtectionofFloodODischargeWayinJiangsuOilfieldWANGFengOwan1,LUGang1,ZHOUYongOzhang1,WEIWuOji1,MIAOJianOcheng2,YANQingOyu2(1.CollegeofMaterialsScienceandEngineering,NanjingUniversityofTechnology,Nanjing210009;2.TechnicalInstitute,SecondOilTrialOProductionFactoryofJiangsuOil2field,Jinhu211600,China).CailiaoBaohu2005,38(9),6264(Ch).ThecorrosionofthesteelplatformusedforfloodOdischargewayofoilfieldisspecialduetotherandomburstingoftheflood.ThusseveralseriesofcoatingswithgoodoutsidecorrosionprotectionwereselectedasthecandidatesforthecorrosionprotectionofthesteelplatforminfloodOdischargewayoftheoilfieldwithrespecttodifferentlocations.Theper2formanceofthecoatingswascomparedusingacceleratedcorrosiontestatroomtemperatureandfieldtest.Astheresults,theinterpenetratingpoly2mernetworks(IPN)bottomlacquercombinedwithacrylicpolyurethaneoralloprenetopcoatingandthezincOrichepoxybottomlacquercombinedwithhighOchlorinatedpolyethylenefinishingcoatingweresuitabletothecorrosionprotectionofthesteelplatforminatmosphericenvironment.TheIPNbottomlacquercombinedwithepoxycoalOpitchorIPNtopcoatingandthezincOrichepoxybottomlacquercombinedwiththetopcoatingsmadeofthesameorepoxypolyurethaneweresuitabletothecorrosionprotectionofthesteelplatformusedforthefloodOdischargewayattheoilOwaterinterface.TheIPNbottomcoatingcombinedwithepoxycoalOpitchorIPNtopcoatingandthezincOrichepoxybottomcoatingcombinedwithepoxycoalOpitchorepoxypolyurethanetopcoatingswereapplicabletothecorrosionprotectionofthesteelplatformunderwater.AndtheIPNbottomcoatingcombinedwiththetopcoatingmadeofthesameandthezincOrichepoxybottomcoatingcombinedwithepoxycoalOpitchfinalcoatingcouldbeusedforthecorrosionprotectionofthesteelframeworkssubjecttocontactwithsoil.Keywords:coating;corrosionprevention;oilfield;floodOdischargeway;steelplatformCoatingTechnologyforMachineToolWANGMingOlei,GAOYuOchun,MAGuoOfeng(No.6InstituteofPro2jectPlanning&Research,MinistryofMachineryIndustry,Zhengzhou450007,China).CailiaoBaohu2005,38(9),6567(Ch).Thedo2mesticcoatingtechnologycurrentlyavailedformachinetoolisusuallylimitedtosmallOscaleandmanualproductionandishencelaggingbehindthemodernmachinetoolindustrycharacterizedbyincreasedmachinequalityandlargescaleproduction.Thusthedesignandplanearrange2mentofthecoatingprocessforthemodernmachinetoolswereinvestiga2tedbasedontheanalysisofthemachinetoolcharacteristicsandthecom2parisonofvariouscoatingtechnologiesapplicabletothemachinetools.Moreover,thecommonlyusedfacilitiesincludingwaterOspinningpaintingroom,coatingdryingroom,andmultifunctionalsprayingOpolishingroomforthecoatingofthemodernmachinetoolswereintroduced.Asthere2sults,itwasfeasibletoperformthecoatingprocessofvariousworkpiecesatabatchOproductionlevelbyproperlydesigningthecoatingtechnologyandtakingintoaccountthecharacteristicsoftheworkpieces.Keywords:machinetool;coatingprocess;coatingfacilitiesCyanideOFreeGoldOImitatingDecorativePlatingforZincAlloyPartsWENSiOxiong(No.1028Mailbox,GuiyangCity,Guiyang550205,China).CailiaoBaohu2005,38(9),6869(Ch).WithaviewtotheeffectivenessofgoldOimitationplatinginprolongingtheservicelifeofzincalloyswidelyappliedinindustry,acyanideOfreegoldOimitationplatingtechnologywasestablishedbytakingintoaccountenvironmentprotectionandsustainabledevelopmentissue.Theprocessingconditionsandsometechnicaldetailswerediscussedwithrespecttothepretreatmentpolis2hing,degreasing,activating,compositeplating,andpostOtreatment.Keywords:zincalloy;goldOimitationplating;pretreatment;activation;antitarnishApplicationofImageTechniqueinPorosityMeasurementofPlatingQINXiangOpei,LIUHongOtao,LIJian,GUKaOli(WuhanResearchInstituteofMaterialsProtection,Wuhan430030,China).CailiaoBao2hu2005,38(9),7072(Ch).Asoneoftheimportantindexesforthequalityratingofplating,porositycanbeusedtoevaluatetheprotectioneffectivenessofthesubstratebytheplating.However,thetraditionalpo2rosityanalysisofcoatingandplatingisgreatlylimitedbytimeOconsumingmanualcountingoftheporosity.Thusasoftwarecapableofautomaticmeasurementofthecoatingporositywasdevelopedbycombiningmetal2lurgicalmicroscopeandCCDcamera,whichmakesitfeasibletoreducethemeasu