简介:本文论述的是球轴承淬硬镀层对完善自润滑的作用。研究的轴承类型是推力球轴承(型号为51107),此类轴承的钢球在运动中既有滚动运动又有滑动现象,因此就会在镀层中产生动态的正应力和剪切应力。套圈材料是一种典型的轴承钢(100Cr6)。钢球材料是SiN4陶瓷材料。用一种特殊的试验装置来检测有镀层的球轴承。这种试验装置可以对几种可变参数进行不同条件下的试验。比如改变轴向力和转速。采用磁控管溅射离子喷射技术进行喷镀形成镀层。首先选择镀层材料的组织,以满足基体材料及其热处理的要求,然后才能采用最佳工艺喷涂轴承套圈。在涂热过程中降低基体温度使之低于180℃是非常重要的。这样既使套圈被喷镀又不致于降低其硬度。初级试验后将被喷镀的套圈在试验装置中进行检测,并且与未镀的球轴承进行比较。在试验期间,不使用润滑剂。
简介:Developmentofanaluminumtorquerodforheavy-dutytrucksuspension;DevelopmentofDissolutionMethodandUnitOperationUsingVegetableOilforPlasticRecycling;Developmentofferriticstainlesssteelsheetswithexcellentdeepdrawabilityby(111}recrystallizationtexturecontrol;DevelopmentofhighmagneticperformanceP/Msoftmagneticmaterial;Developmentofhigh-strengthmagnesiumalloywire;DevelopmentofLead-freeFree-cuttingSteel;……
简介:Anewflowdiagrammingschemeformappingandanalysisofmulti-productflowsinafacility;Anewgeneticalgorithmforthemachine/partgroupingprobleminvolvingprocessingtimesandlotsizes;Acousticemissionduringquenchingof42CrMo4steel;Anothersimilaritycoefficientforthep-medianmodelingrouptechnology;Investigationofabnormalwearofmassivemachinepart-welded-technicalchromiumlayersystem……
简介:[篇名]Alowcostroboticsmachinetendingsystem,[篇名]Anovel,newdirectinjectiontechnologyforin-linecompoundingandmoldingofLFTautomotivestructures,[篇名]Aproposalofhigherprecisionandreducingpressworkingloadinformingofhigh-tensilesteelsheetsforautomobiles,[篇名]AdvancedPlasmaNitridingforAluminumandAluminumAlloys,[篇名]Aluminumalloysheetsforautomotiveparts,[篇名]Anadvancedcastingtechnologyforrecyclingofthehigh-tensilesteelsheetpressedge,[篇名]AnalysisofBendingDeformationBehaviorduringLaserWeldinginCylindricalParts,[篇名]AnalysisofBendingDeformationBehaviorinCylindricalPartsbyCircumferentialWelding-StudyofDeformationBehaviorbyLaserWeldinginMicronorSub-MicronLevelinAutomobileParts(Report1),[篇名]ANALYSISOFDEFORMATIONBEHAVIOROFPIPEUNDERLASERWELDING,[篇名]Analysisofpolyurethanefoamingflow-Part1:applicationoffoamingdensityformulato3-Dflowanalysis,[篇名]Applicationofhydroformingsimulationondevelopmentofautomobileparts,[篇名]Applicationofintensivequenchingtechnologyforsteelparts,[篇名]Applicationofnyloncompositerecycletechnologyforautomotiveapplications,[篇名]Applicationofnyloncompositerecycletechnologytoautomotiveparts,[篇名]Applicationoftitaniumalloysforincreasingautomobileperformance。
简介:Applicationoftubehydroformingtoautomotiveparts,AppliedinvestigationofBio-Plastics,Automotiveapplicationsofmagnesiumalloys,AZ80andZC71/SiC/12pcloseddieforgingsforautomotiveapplications:technicalandeconomicassessmentofpossiblemassproduction,Burnishingversusgrindingforautomotiveparts,CAD-GuidedSensorPlanningforDimensionalInspectioninAutomotiveManufacturing。
简介:1.1971年.一位亚利桑那人开枪打伤了自己。这倒没有什么可大惊小怪的,这种事情时有发生。可是为了提高呼救声的分贝.这位受伤的人又开了一枪,打中了另外一条腿。