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223Vol.22,No.320055HebeiJournalofIndustrialScienceandTechnologyMay2005:100821534(2005)03201342041,1,2(11,050054;21,050051):,,,,,,:;;:TH136:AApplicationofsiliconcarbideinmechanicalsealsYUXin2qi1,RENOu2xu1,LUZhan2quan2(1.CollegeofMechanicalandElectronicEngineering,HebeiUniversityofScienceandTechnology,ShijiazhuangHebei050054,China;2.HebeiChengtaoTenderingCompanyLimited,ShijiazhuangHebei050051,China)Abstract:Materialpropertyofsealringhasdirecteffectonoperatingperformanceandlife2timeofmechanicalseals.There2quiredpropertyofsealingmaterialusedinmechanicalsealsisdiscussedinthispaper.Catalog,featureandpropertyofsiliconcarbideusedinmechanicalsealsareintroduced.Itisanalyzedthatsiliconcarbidesealringcanbeusedinmechanicalsealsinva2riousoperatingconditionssuchashightemperature,highpressure,corrosivemediumandthemediumwithsolidparticles.Theresultsshowthatsiliconcarbideistheperfectmaterialforthehardringsofmechanicalseals.Keywords:siliconcarbide;mechanicalseals;sealingpair,,12,,,,:2004205226;:2004210225::(19632),,,,,1-;2-;3-;4-;5-;6-;7-;8-1Fig.1Fundamentalstructureofmechanicalseals1,,,,[1]:1)(),,2),,,,3),,,,,,,4),,,,,2,[2],,:,32.11),,,95%19002200,[3],,2),10%12%,,,API682[4]3)1m,,20002100,3050MPa,[5]2.2,13[6],1,,,,3,3.1PVPVPV,,PV1),,,,,,,EkasicD410MPa,2200MPa,5[7],,,,,,[8],PV,PV,53131Tab.1PerformanceofsiliconcarbideandtungstencarbideSiCSiCSiC/(gcm-3)14.73.23.143.183.1/(kgmm-2)16501800210025001700/MPa880980590490()0.20.10.10.1/GPa590430440440/K-14.710-64.810-64.010-64.310-6/(Wm-1K-1)636585803w()/50%CAAAw()/35%AAAAw()/20%+w()/5%CBACw()/10%BAABw()/50%ABAC3,70100h,:,A()0.125mm/a,;B()=011251mm/a,0.125mm/a,;C()1.0mm/a,,,2,,PV[9],[10]2SiCFig.2SiCsealringwithmicro2poreface2),,,,,,,,,,3.2,,,,,1400[6],3.3,,,,900,[11]3.4,,,,,,1,,[12]463122,,PV:[1]MULLERHK,NAUBS.FluidSealingTechnology2princi2plesandApplications[M].NewYork:MercelDekkerInc,1998.2932307.[2]EDMUNDJ.Selection,propertiesandqualityassuranceoffacematerialforrotatingmechanicalseals[J].LubricationEngi2neering,1998,44(8):7192726.[3],,1[J]1,2002,12(4):31236.[4]API682,ShaftSealingSystemsforCentrifugalandRotaryPumps[S].[5]1[M]1:,200111832200.[6],,1[M]1:,2000158279.[7]KNOCHH,FUNDUSM.Sinteredsiliconcarbideforslidebearingsandsealrings[J].SealingTechnology,1995,17:6214.[8]1[J]1,1987,(3):33238.[9],1[J]1,2004,25(1):26228.[10],,1[J]1,2003,31(1):729.[11],1[J]1,1997,25(2):1572162.[12]WANGXL,KOJIK,KOSHIA.Thelubricationeffectofmi2cro2pitsonparallelslidingfacesofSiCinwater[J].Lubrica2tionEngineering,2002,58(8):27234.(126)jarhref=swt.jar/jarhref=runtime.jar/jarhref=workbench.jar/jarhref=jface.jar//resourcesapplication-descmain-class=News2Group//jnlp,1HTML,JNLPHTTP,4,,,,JavaRMI,SWT,Java,,,WebStartJava,,RMI,SWTWebStart3,Java:[1]PAULR,REEDEEDJ.JavaUML[M].1:,2003.[2]ADRIANVE1JfaceSWT[J/OL].[3]JEFFG1JavaWebStartSWT[J/OL].():()7313