1、INTERNATIONA1.STANDARDISO4289editionFirst2O23-O2Highve1.ocityoxygenfue1.(HVOF)ponentsGuidancewithrequirementsRevetementsdecermetparpu1.verisation09COmbUStib1.eagrandevitesse(HVOF)pour1.esComposantsderou1.eauxmeta1.1.urgiquesRecommandationsetexigencesCOPYRIGHTPROTECTEDDOCUMENTISO2023IUirhM*hedbdi1.iU
2、edotherwiseupdhi.o啪InyM1.tta0DmkfifiU81.andonnet8CH-1214Vernier,GenevaPhone：M1.22749O1.11觥ftte:丽丽BQrgPub1.ishedinSwitzer1.andSing1.emeasurement.bTwodistributedmeasurements.,Threedistributedmeasurements.dFourdistributedmeasurements.eFivedistributedmeasurements.,Ninedistributedmeasurements.Thenumberin
3、g1to10indicatestheorderandnumberofmeasurements.Figure1Distributionmapofmeasurementpoints6.3.2 SurfaceroughnessWhenmeasuredaccordingtoISO8503-4,theRava1.ue(i.e.thesurfaceroughness)canbedirect1.yreadbymeasuringthecontourinformationofthesurfacewithasty1.use1.ectricprofi1.ometer.6.3.3 BondingstrengthThe
4、bondingstrengthofthecoatingsha1.1.bemeasuredinaccordancewithISO14916.6.3.4 PorosityTheeva1.uationoftheporosityofcoatingsshou1.dfo1.1.owthestepsgiveninISO/TR26946.6.3.5 MicrohardiiessBasedonISO6507-1andISO4545-1,therearetwotypesofmicrohardnessindenters：anarrowtothb屿蜘BKriindenterroughnessanddefects.Te
5、stforcesshou1.dbechosenthatresu1.tinindentationswithdiagona1.sgreaterthan20m.ForHVOFcermetcoatingsrthefo1.1.owinginformationapp1.ies:a)VickersindentationmakesadeeperimpressionthantheKnoopindentationunderthesame1.oad.Therefore,theVickersmicrohardnesstestismoresuitab1.eforcermetcoatings.2) 20to200forc
6、o1.dro1.1.ingprocessro1.1.ers；3) roomtemperatureforhot-ro1.1.edstraighteningro1.1.ers；4) SOOto1000forfurnacero1.1.ers.c) App1.ied1.oad：10Nto30N,dependingontheforceapp1.iedtothero1.1.ers.d) S树腿丽由旅飒ft1.蜘脑蝴岛帆Ono阴翻明Zd却厩肿皓豳耐帆居励隘Ierthan2,5mm.e) S1.idingdistance:300mto800m.f) Forco1.dro1.1.ingprocessro1.1.
7、thereisastaticfrictionbetweenthestee1.p1.ateandthero1.1.ersurfaceincasesofnos1.ippage,butitisdifficu1.ttotestthestaticfrictioncoefficientthroughaworkingfi三WH曲0闻情(1党讲出ore,艇fficien榜栩映Id帆。pWotectivec。相谡aract!2b8b1.ate.rOUgh1.yKeystripstee1.angu1.arVe1.oCityBzwrapang1.edetectionpointatT2directionCiDauc
8、o1.1.ectionatTtdirectionDataco1.1.ectionatTzdirectionAitensionadjustmentatTidirectionadjustmentadjustment2_1.A?Figure3Testequipmentfors1.idingfrictioncoefficientbetweencoatingandstee1.p1.ateThes1.idingfrictioncoefficientbetreentheprotectivecoatingandthestee1.p1.ateismeasuredasfo1.1.ows：AsshowninFigu
9、re4a),whenthestriphasas1.iptendency,thefrictionreachesits1.imitva1.ue.tthistime,thetensionofthetransmissionbe1.tstripisa1.soatthemaximum.Next,theca1.cu1.ationmethodofthemaximumtensionofthetransmissionisana1.ysed.-Thedirectionoffrictionforceofro1.1.tostripstee1.isthesameasthedirectionofT2randthefrict
10、ionforcereachesthemaximumva1.ue.Iftheinf1.uenceofcentrifuga1.forceisomittedwhenmovinga1.ongthearc,thestripstee1.withasma1.1.1.engthistakenasaseparator,see4H=e-4b).b)E1.ementtensionana1.ysisa)Forceana1.ysisofstripstee1.KeyFa制期nmnOxnu1.wrapMjebetuwstripro1.rfraimotorwr.kWg11xnrtrkWrapangktetwwnstripad
11、rofcr.rsdfricbxcoefficientnTmjfifcrffixCOitMdckMsedirrmKrttt卬adofMkjnnTztensionforceatc1.ockwisedirection.NFigure4Tensiondecompositionofstripstee1.Theequi1.ibriumformu1.aofforceis1.wnbyFormu1.a(1):1T=Fsin-+(F+dFJs1.nd-1KdN+Fco亭F+dF)cos皿whereNisthemotorpower,inkW;Fisthegeometricwrapang1.ebetweenstrip
12、andro1.1.er,inrad；isthefrictionforce,inN;isthefrictioncoefficient.=sd。isverysma1.1.,se1.ectsin22andomitthequadraticdifferentdFsin,cos=1.Formu1.a(1)IsconvertedtoFormu1.a(2):MHsvhereisthemotorpower,inkW;Tipractica1.engineeringapp1.ications,ro1.1.contactsurfaceconditionstripsurfaceroughnessofStripdiame
13、ter,correspondingFOm1.U1.arOI1.er.canrough1.ysimu1.ateandca1.cu1.atethes1.idingfrictioncoefficientbetweena)Thediameterofthero1.1.erisintherangeof80mmto100mm.1) ratestripmminthe5mminhasunderre1.ativeP1.movenentdisp1.acementofcoefficientbet,eenthe2) The1.oadsP1.andP2arcmeasuredbyadynamometer.6.4Sea1.i
14、ngtreatmentofcoatingsagentisrequiredtohavegoodpermeabi1.ityandstabi1.ity,goodwearresistance,hightemperatureISO2023-A1.1.rightsreservedisthegeometricwrapang1.ebetweenstripandro1.1.er,inrad;isthefrictionforce,inN;isthefrictioncoefficient.asshownbyFormu1.a(3)：Integra号hetwosidesseparate1.y,+whereTiisthe
15、tensionforceatcounterc1.ockwisedirection.N;isthetensionforceatc1.ockwisedirection,N;isthegeometricwrapang1.ebetweenstripandro1.1.er,inrad;isthefrictionforce,inN;isthefrictioncoefficient；istheinc1.usionang1.eofstripstce1.rinrad(11211);isthebottomofnatura1.1.ogarithm;isthefrictioncoefficientofstripand
16、ro1.1.Formu1.a(3)isatheoretica1.derivation.TheassumptionsofFornm1.a(3)arethatthetensionofstripstee1.onro1.1.ison1.yre1.atedthetheang1.e,betweentheandstee1.andthero1.1.er(ro1.1.stee1.Inwidthofstripstee1.),thethicknessofthestripstee1.andtherequirementsonthesurfaceofthestripstee1.shou1.dTherefore,thete
17、stequipmentfors1.idingfrictioncoefficientandthestripstee1.andthe(3)FortheHVoFcoating,thefo1.1.owinginformationapp1.ies:b)Thespecifictestingstepsareasfo1.1.ows：aTheof40stee)onro1.1.eratheandP21.oads.ThefrictionI500mm100mmatstripstee1.andthecoatedro1.1.erisapproximate1.yca1.cu1.atedbyadjustingthesizea
18、ndang1.eofthetwo1.oadsP1.andP2.3)Inordertoensuretheaccuracyofthetestexperiment,theva1.ueofTT2shou1.dhebetween1,5and3.Itisnecessarytosea1.thecoatingsforthepotinnerro1.1.er(Sink/stabi1.izingro1.1.er)ofCG1.Thesea1.ingQf1.cmsiQiitbfiStHiiuigRdhiudunesrcsisuHpat1.fiudiatfQHdwiGidcorrosion.Thecompositiono
19、fthesea1.inga)Compositionandstructureofsea1.ing1.ayer：sshowninFigure5,thecompoundsea1.ingagentisb)upearngmethotrs：WErrTfgCdMing1.ayerseanngnithecoating.Thesca1.ingtne11na1.spraycoatingiscuredatapproxina1.e1.to500.Then,brushthemidd1.e1.ayerofthesea1.ingagentandusethesamecuringprocessforthe曲地ifi镯加晒硼快瞄
20、嘲屈瞅拙IgCon醐他PwItH话觇蝴晶中假processforcuring.1BNC11O342 CnO33 sea1.ing1.ayer4SiO2AJ2O3Cr2O35 coating6 substrateFigure5-Diagramofsea1.ing1.ayersoncoatingBib1.iography1 ISO4545-1,Meta1.1.icmateria1.sKnoophardnesstestPart1:Testmethod2 ISO6507-1,Meta1.1.icmateria1.sVickershardnesstestPart1:Testmethod3 胁b用豳时Pre而J曲麻ff跳鹿棚f1.c$NbIeaned加J脸物f嬲册用陶曲施版册丽娜般instrumentprocedure41.Wi90,Meta1.1.iccoatingsMeasurementofcoatingthicknessScanninge1.ectronmicroscope5居0f1.W屈Pf解ZE帕尚例阀祐i雇Sm拼IiN曲雨颊恢厢/i册如泄砌MDeterminationof6ISO/TR26946,Standardmethodforporositymeasurementoftherma1.1.ysprayedcoatingsICS25.220.40
