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1、引起密封泄露的因素Causesofsealleakage・TXTAfactorcausingtheleakageoftheseal(1)installationproblem:AleakiscausedbyanerrorinsealingthedirectionoftheinstallationWhentheinstsllstionismixedin,ortheinsideoftheline,dust,entersealingtocauseleakageFailureofassemblytocausele
2、akageThesurfacescratchesofthesealbarcauseleakage5weldingprocess,PartialloadcausesleakageThecoatingisnotuniform,thecoatingisinthesealingring(2)sealselectionThegapbiteiscausedbyhighpressureWhenmixedinair,adiabaticcompressioncausesseallossThesealingmateriali
3、snotcompatiblewiththemedium,causingthematerialdeteriorationtoreflectThehightemperaturecausesthematerialtodeteriorateslightlyLowtemperaturecausesthematerialtohardenandcontracttwocausesleakageThehighfrequencyreciprocatingmovementcausesthesealingpartstobehot
4、anddryLowpressure,lowspeed,unevenmovementPoorlubricationleadstoincreasedsealingwearTheelementwasshakenbecauseoftheleak10ambientdustcausesthesealingringtowearoutThesealgroovesrustedandcausedtheleak(1)problemofsealingassemblydesign1guidesupportingmaterialis
5、usedimproperly,damagedcylinder,pistonrodThefrictionbetweenthetwoisnotsuitable,resultingintheclearanceofthebiteThescrewAngleofthecylinderendofthecylinderisnotimproperandthesealingringisdamaged4stiffness,thecalculationoferrorsbyoneselfcausesapoormotorcondit
6、ion4sealinstallationguideAngleimproperdamagesealingringSlidingsurfaceroughnessisnotsuitable,wearsealingringTheplatingisnotuniform,thesealisperforatedbythesurfaceoftheseal,thedamageisdone,thesealingringiswornSealgroove,especiallyshaftsealgrooveroughnessnot
7、enough,wear,damagesealPiston,pistonrodplatingporositycausesleakageThelubricationiswornout,thecylinderandpistonrodarebroken(1)custodyproblemInstorage,thetransportissubjectedtohightemperature,whichcausesthesealingmaterialtodeteriorateandslightlyStrongsunlig
8、htozone,radiationcausesthesealingmaterialtogobadLackproperpreservationmethodtomakethesealingringdeformationLong-termstoragecausesthesealingmaterialtoageSecond,therotatingsealleakageisexcluded(1)leakingtoomuch・Reason