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1、印刷机油路保养（Printingmachineoilcircuitmaintenance）OillinemaintenanceTheoilcircuitisoneofthemostimportantcontentsinthemachinemaintenance.Theroleoftheoilcircuitis:1.tominimizetheareaofdirectcontactbetweenthetworigidsurfaces,therebyreducingwearonthetwosurface.Becauseofthedecreaseofwear
2、andtear,theaccuracyofthemachineislessdamagedandtheenergyconsumptionisgreatlyreduced.2.becauseoftheflowoftheoilcircuit,theheatgeneratedbythemachinepartsistakenawaybyoil,sothatthepartsofthemachinealwaysworkinnormaltemperature(withoutcausingthermaldeformation),andensurethetransmis
3、sionaccuracyofthemachine.3.corrosionprotection.Thepresenceofoilonthesurfaceofthecomponentseparatestheairfromthesurfaceofthecomponenttopreventtheoxidationreactionfromoccurring.Highspeedmovingparts,inparticular,aremoredemandingbecauseoftheirhighsurfacetemperatureandeasieroxidatio
4、n.4.sealingeffect.Thereisalwaysagapbetweenthetwosurfacesbecauseofthemachiningerroronthepartsurface.Iftwosurfaceshavelubricatingoil,thetwosurfacescanbeformedwithoutvoids.5.increasethecontactareabetweenthecomponentssothatthemachinerunssmoothly.Thereisalwaysmachiningerroronthesurf
5、aceofparts,sothecontactareabetweenpartscannotreachonehundredpercent.Thehigherthesurfaceroughnessis,thelessthecontactareais,andtheworsetherunningstabilityis.Ifthereislubricantbetweentwosurfaces,thecontactareaofthetwosurfacesisgreatlyincreased,thusenablingthemachinetooperatestabl
6、y.Wecanseetheimportantpositionoftheoilcircuitfromthefunctionoftheoilcircuit.Oilman'sblood,nooilandnobloodmachinealsoisunthinkable.WorkingprincipleoflubricatingoilWhydoesoilplaysucharole?Here'showitworks.AsshowninFig.6.l,whentheupperobjectmovesrelativetotheobjectbelow,thefirsttw
7、osidesofthepeakarewornoff,thenthesurfaceareaofthetwosurfaceiscontacted.Relativelylarge.Inthefurtherrelativemovement,theheatgeneratedbythetwosurfaceincreases,andtheheatdissipationrateslowsdown,sothatthetemperatureofthecontactsurfaceincreases,andthefluidityofthemetalincreasessoth
8、atthetwosidesfusetogether.Atthistime,iftherelativemoti
