喷涂工艺参数对NiCrBSi涂层显微组织和性能的影响

NiCrBSi(710049)[]NiCrBSi,NiCrBSi40mm,NiCrBSiHV0.2700[];;[]TG174.44[]A[]1001-1560(2001)11-0030-02[]2001-07-021,20kW80kW,200kW,,40kW,1020mm,,;,,,,,,,2,MP201Ar,2080A,35V:Ni216.8Cr213.4Fe25.55Si21.45B(Ni60),3845mHV25,200g20s,10ASTMC6332793311()1:10,40mm,5mm1241L/min40mm,40A80ANiCrBSi(a)40A(b)80A2,80A,40A,,,,,,3NiCrBSi3,30MaterialsProtectionEffectsofSprayingParametersontheMicrostructureandPropertiesofMicro-PlasmaSpayingNiCrBSiCoatingNov.2001Vol.34No.11©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,(2)80A,HV0.2780,312460A,40mm,(a)33Lmin-1(b)41Lmin-14,,,,,,,,,5NiCrBSi,,,41L/min,5313660A,41L/min,20mm120mmNiCrBSi(a)20mm(b)120mm6,,,,,,,(4b),40mm7,2040mm,,40mm,73.4,,60A,30L/min,40mm,18.4MPa4,,,,HV0.2700,1814MPa40mm,(),,,::212219:3382:0511-8548348:0511-8548813:013905284965:NiCrBSi200111341131©1995-2004TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.hu2001,34(11),2122(Ch).TheprocessofZn-PTFE[38(vol)%]compositeplatinghasbeenstudied.ThetribologicalpropertiesofthematerialabovedescribedhasbeenmeasuredandgivenfrictionfactorisUs=Uk0.11.TheZn-PTFEcompositeplatinghasself-lubricationfunction.StudyofZincNickelAlloyPassivatingandPerformanceofPassivationFilm.YANSheng-gui,BAIShu-ya,SHENCheng-jin(ChinaUniversityofMin2ing&Technology,Xuzhou,P.R.China221008).CaliaoBaohu2001,34(11),2324(Ch).StudyofProcessofLowTemperatureChemicalColoringonStainlessSteel.XIAOXin,ZHONGPing,YIXiangetal(DepartmentofAppliedChemistry,HunanCollegeofEngineering,HunanXiangtan,P.R.China411101).CailiaoBaohu2001,34(11),2527(Ch).Anewprocessoflowtempera2turechemicalcoloringonstainlesswasdevelopedbyaddingthesaltsoftransi2tion-metalinCrO3-H2SO4.Theinfluenceofchemicalcompositionandoper2ationconaitionshasbeendiscussed.Theexperimentalresultsshowthatthefilmsiscolorful.Corrosionresistanceisgood,andtheissimple.NewProcessofAncieutplatingTreatmentZHANYi-teng(GuangzhouResearchInstituteofNo.2LightIndustry,Guangzhou,P.R.China510170).CailiaoBaohu2001,34,(11)2829(Ch).EffectsofSprayingParametersontheMicrostructureandPropertiesofMicroPlasmaSprayingNiCrBSiCoatingSUNBo,LiChang-jiu,BAIYong-feng(Machine-EngineeringCollege,XianCommunicationUniversity,Xian,P.R.China710049).CailiaoBaohu2001,34(11),3031(Ch).TheNiCrBSicoatingisdepositedbyamicro-plasmasprayingsystem.Theeffectsoftheplasmapower,sprayingdis2tanceandplasmagasflowrateonthemicrostructureandpropertiesofthecoatingswereinvestigated.Theexperimentalresultsshowthatwiththein2creasingofarccurrentandplasmaoperatinggasflowrate,thedensityoftheNiCrBSicoatingsisincreasedthusresultedinhighcoatinghardness.More2over,thesprayingdistanceshowslittleinfluenceonthecoatinghardnesswhensprayingdistancereachesto40mm.TheNiCrBSicoatingofaboutHV2N700canbedepositedbythemicro-plasmaspraying.StudyofSilanceAgentAnti-CorrosiononMetalSurfaceWANGNan,XUYi,YANGLi-huaetal(EnvironmentandChemicalEngi2neeringCol1ege,ChongqingUniversity,Chongqing,P.R.China400044).CailiaoBaohu2001,34(11),3233(Ch).Silanceagents(SA)wasusedtometallicsurfaceforanti-corrosion.Theinfluencingfactorssuchasmetalpre2treatment,componentsofSAsolutionandagingwerestudied.Thetechnicalprocesswasoptimized.Theanti-corrosionpropertyandcoatingadhesionofsteelbythetreatmentofSAareequalorbetterthanthatbyphosphatingtreat2ment.PaintingTechnologyforLateModelTruckTANGNi-ting(GuangdongNahaiAutomobileFactory,Guangzhou,P.R.China528200).CailiaoBaohu2001,34(11),34(Ch).StudyofCorrosionEnvironmentCharacteristicsonTuandaoTestingStationQlFen-yu,LIJia-zhu,LIUMing-hui(BejingInstituteofAeronauticalMaterials,Beijing,P.R.China100095).CailiaoBaohu2001,34(11)3536(Ch).TheresultsofatmosphereexposureshowthatcorrosivenessofQingdaosTuandaoisthemostseriousamongseveraltypicalareasinChina.ThispaperintroducesthatinvestigationofatmospherecorrosionenvironmentinQingdaosTuandao,anddescribesitscorroionenvironmentcharacteristicstosystimaticallyinvestigatethecauseresultedintheseriouscorrosion.Thein2vestigationhasshownthatmajorcauseresultedintheseriouscorrosioninTuandaoismoreweatherwiththefogandthinfoginthearea,enablesthemetalsurfacesformedthinwaterfilmtobelongterm,andbecauseinnuencefromtheQindaocityatmosphereandsplashofseawater,atmosphereintheareahavehighcontentsofSO2,H2S,NH3,Cl-etc.RapidAnalysisofCopperSulfateinAcidicCopperPlatingBathQIUShan,QIUXing-chu,DENGQian-minetal(PanyuFulongHardwareElectronicIndustryCompoanyLimited,Panyu,P.R.China511483).Cail2iaoBaohu2001,34(11),3738(Ch).TheSpetrophotometricDeterminationofMicroChromium(VI)EnrichingonProtoatedChitinYANJin-long(ChemicalEngineeringDepartment,YanchengEngineeringCollege,Yancheng,P.R.China224003).CailiaoBaohu2001,protonatedchitinhasbeenappliedtothespectrophotometricdeterminationofchromium(VI).Thechromium(VI)iscollectedasCrO227inaweakacidicmediumthusiseasilvelutedwithasmallvolumeof1mol/Lammoniasolution(pH10).Thecollectionmechanismandoptimumconditionshavealsobeenstudied.Themethodwasusedtothedeterminationofmicrochromium(VI)inwaterwithagoodresult.TheApplicationsofThermalSpraytngTechnologyinMainienanceofPowerE2quipmentforProlongLifeGUOLi-feng,HUANGAn-guo,TANGYi(DepartmentofMachinesa