重载履带车辆发动机再制造技术分析与评估体系探讨 毕业论文外文翻译

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1、英文文献及翻译InvestigationofRemanufacturingTechnologyandevaluationsystemofHeavyDutyCaterpillarEngine1IntroductionWiththeresourceincreasinglydryingupandtheenvironmentcontaminativeprickingup,thesignificanceofcontinualdevelopmentwasunderstoodgraduallybypeople.Theremanufacturingengineeringiscame

2、intobeingandbecameonenewengineeringsubjectastheresourcerequirementwasincreasinglywentupbyhumanbeing.Anditisregardedimportantlybyallthecountriesandbecomeoneimportanttechnologysupporttocarryoutthestrategicofcontinualdevelopment[1,2].Owingtothemal-conditionsofoperatingandthehighreinforcem

3、ent,heavydutycaterpillarengineshaveaveryshortservicelifecomparingwiththecivilvehicle.Itistheunequal-lifeoftheengine’spartsandworkingsurfacesthatresultsinthefailureofsomepartsandworkingsurfacesandtheenginesgoestoout-of-service.Shortservicelifeofengineandunconformitywiththelifecycleofveh

4、iclehadbecomeabottlenecktothemaintenanceinthearmoredcavalry[3].Itisurgentfortheensuringandmaintainingofarmoredequipmenttostarttheremanufacturingofarmoredvehicleenginebasedonhightechnologyforprolongingitsservicelife.Notablebenefitineconomyandmilitaryfairswillbegainedbythesameservicelife

5、withthevehicleafterremanufacturingoftheengine.2feasibilityanalysisThemanufacturingtechnologyusedintheheavydutycaterpillarengineisfollowingtheoldtechnologyofthesoviettimes,whichhave50yearsuptonow.Andagreatmanynewtechniqueandmaterialhaveoccurredinthese50years.Thesufaceengineeringtechnolo

6、gy,whichadoptingmanysurfaceintensifytechnologytoconsolidatingthesurfaceofmaterialandgettingthehighwearability,wasdevelopedfromthe1980s.Itprovidesatechnologybasetoremanufacturingtheequipmentengine[4].Now,theemploylife-spanofcivilianenginehavereachedat8000～10000hasusingthenewtechnology,n

7、ewmaterialandnewsurfacetreatmenttechnology.Accordingtothe“cannikintheory”ofproductlife,itwillprolongthelife-spanofengineaslongasincreasingthelengthofthoseshortestboard,whichcaninfluencetheperformanceofengine,Namely,prolongingthelife-spanofkeyfrictionmateforenginesuchascylinder/piston