简介:新能源汽车是未来汽车发展的方向.作为汽车空调压缩机的重要零部件——轴承座的合理设计和经济制造,对确保压缩机性能和降低成本具有十分重要的意义。在汽车空调压缩机里,轴承座与高速运转的转轴和涡旋盘相互配合.在复杂应力状态和高应力值之下.高速而长时间地工作,对其有很高的性能要求。传统的重力铸造生产效率较低,易产生气孔、缩松等内部缺陷.随着新能源汽车销量日益增加.显然已经不能满足生产要求。本文采取以锻代铸的方法.用DEFORM-3D对新能源汽车空调压缩机轴承座成形进行数值模拟,分析成形过程中金属流动规律,提出了预锻制坯.然后背压力闭塞式模锻终成形的锻造工艺,不仅可以改善轴承座的机械性能,提高材料利用率.还能大大提高生产效率。
简介:AnomalousLeakageCurrentinSilicon0xynitrideThinFilmsGrownbyMicrowaveExcitedNitrogenPlasmaNitridation.Applicationoftheexplosivemethodforcreatingnitrogenlayers;Brightplasmanitridingofferriticsteelwithseveralalloyingelements;Cleaningasthemostimportantsteptowardssuccessfulheattreatment
简介:[篇名]ActivatedMigrationSintering,[篇名]Activationofsteelsurfacesbyoxynitriding,[篇名]Activescreenplasmanitridingtechnology,[篇名]AdvancedPlasmaNitridingforAluminumandAluminumAlloys,[篇名]Ananti-corrosionandwear-resistingcompoundingnitridedlayeronprecisepressedpartsofsoftsteels,[篇名]Anexperimentalstudytocorrelatewaterjetimpingementerosionresistanceandpropertiesofmetallicmaterialsandcoatings,[篇名]AnInfluenceofSonBombardingontheEffectsofNitridinginD.C.GlowDischargePlasma。
简介:CharacteristicsofsiliconoxynitridesmadebyECRplasmas;CharacterizationandcomparisonofPECVDsiliconnitrideandsiliconoxynitridedielectricforMIMcapacitors;CharacterizationofsiliconoxynitridethinfilmsdepositedbyECR-PECVD;Characterizationofsiliconoxynitridesandhigh-kdielectricmaterialsbyangle-resolvedX-rayphotoelectronspectroscopy
简介:[篇名]3-inchfull-colorOLEDdisplayusingaplasticsubstrate,[篇名]AsignificantimprovementinmemoryretentionofMFISstructurefor1T-typeferroelectricmemorybyrapidthermalannealing,[篇名]Accuratereliabilityevaluationofnon-uniformultrathinoxynitridcandhigh-klayers,[篇名]Advancedgatedielectricmaterialsforsub-100nmCMOS,[篇名]AINfilmscpitaxialyformedbydirectnitridationofsapphireusingaluminumoxynitridcasabufferlayer,[篇名]Amorphoussilicon-oxynitridcsubmicronfibres,[篇名]CharacteristicsofCr-Al-N-Othinfilmspreparedbypulsedlaserdeposition.
简介:[篇名]Astudyonfrictionandwearbehaviourofcarburized,carbonitridedandboridedAISI1020and5115steels,[篇名]AlloyCarburizationatTemperaturesof1,200-2,100F(650-1,150℃),[篇名]Amorphoussiliconcarbonitridefibersdrawnfromalkoxidemodifiedceraser,[篇名]Bearingswithincrcasedreliability,[篇名]Brightoutlookforhardcoatings,[篇名]Carbonitridccoatingbylow-temperaturediffusionprocess,[篇名]Carbonitridcnanomaterials,thinfilms,andsolids.