简介:摘要:本文主要介绍了焊后热处理装置、装配方法及热处理工艺方法。首先,对焊后热处理装置进行了讨论,包括设备的选择和布局、温度控制系统的设计和调试、热处理介质的选择和管理以及安全措施和操作规程。其次,介绍了焊后装配方法,包括零件准备和清洁、零件定位和固定、焊接前的预热和热处理以及焊接后的冷却和热处理。之后,详细介绍了热处理工艺方法,包括固溶处理、淬火处理、回火处理和应力释放处理。本文旨在探讨焊后热处理的方法和技术,以提供指导和参考,从而改善焊接零件的质量和性能。
简介:摘要 : 班主任工作很 繁琐,特别是突如其来的偶发事件,可能搞得班主任措手不及,十分恼火。但是咄咄逼人的训斥,尖酸刻薄的嘲讽,横暴野蛮的体罚,并不能显示出教育的威力,反而会暴露出班主任心理素质脆弱、情感素质浅薄。很多有经验的班主任能将问题消灭于萌芽状态,防患于未然,即使遇到突发事件,也能泰然处之、临阵不乱,在一颦一笑或娓娓而谈中使问题得到妥善解决。
简介:摘要:如何用科学的方法研究和解决工时定额制定方法,是工时定额人员需要永久探索的问题。本文主要根据航空航天单位生产批量少、品种多的实际情况,重点探索了产品热加工过程中的装炉不稳定的情况,并提出了一种针对装炉不稳定情况下的,基于“技术定额法”和“修正系数法”的热处理工时定额法,通过对该方法的详细介绍,解决了单位热处理以工时定额的方式进行结算的定额方法,对于规范热处理工时制度和执行按劳分配原则也起到了进作用。
简介:摘要: 焊口热处理工艺是一种在焊口焊接完成之后,对焊口进行高温回火的工艺,通过此项工艺,能够使得焊口中的焊缝组织性、韧性、塑性等更高,有利于工程建设的质量。然而在许多实际工作当中,当工作人员在进行焊口热处理时,突然出现中断现象,此时焊口可能会处在一个尴尬的地步,如果不及时处理,焊口会在一个不理想的状态下凝固,导致工程质量受损,因此有必要对焊口热处理中断问题进行处理。
简介:[篇名]SignificantincreaseinmachinepartdurabilityandlongevityduetothenewpatentedLincarb,LinterprocessandLinheattechnologies,[篇名]Lasersurfacetreatmentofsteels,[篇名]ForecastingofthePhaseTransformationHardenedZoneandGorrelationInfluenceFactorsintheSurfaceHeatTreatmentbyPlasma,[篇名]Fatigueandfracturebehaviorofalasersurfaceheattreatedmartensitichigh-nitrogentoolsteel,[篇名]Theoreticalmodelsofsurfaceheattreatmentofproductsinsolarfurnaces-1:uniformradiant-energyflux。
简介:[篇名]Doublethermochemicaltreatmentintoolmanufacturingfromstructuralsteel,[篇名]Lifetimepredictionofhelicoptergears:experimentalinvestigationsandcomputermodelling,[篇名]Fluidizedbedapparatusesforthermaltreatmentandclassificationofdispersematerials,[篇名]Experimentalrigofthermochemicaltreatmentscraptires,[篇名]Thermochemicaltreatmentofsteel20khuponcyclictemperaturechanges。
简介:[篇名]Relationsbetweenfracturetoughness,hardnessandmicrostructureofvacuumheat-treatedhigh-speedsteel,[篇名]Flexiblefurnaceconceptsforvacuumheattreatmentusinghigh-pressuregasquenching,[篇名]Effectofboronmicro-alloyingonmicrostructureandmechanicalpropertiesoffine-grainedCM247LCsuperalloy,[篇名]PROPERTIESOFPOLYCRYSTALSSINTEREDATHIGHPRESSURESFROMDIAMONDNANOPOWDERSPRODUCEDBYDETONATIONANDSTATICSYNTHESES,[篇名]TheEffectsofSteelQuality,VacuumHeatTreatmentQuenchRateandCharpyV-NotchImpactTestTemperatureontheImpactToughnessandMicrostructureofPremiumQualityH-13ToolSteel。
简介:[篇名]Heattreatmentoftheweldedjointsformainunitsofseaplatformsinthenorthsea,[篇名]FatigueLifeImprovementofStructuralElementswithFatigueCracks,[篇名]Newmaterialsandproductiontechnologiesforinnovativelightweightconstructions,[篇名]Effectsoftheelectronbeamlocalpost-wellheat-treatmentonthemicrostructureandpropertiesof30CrMnSiNi2Asteelweldedjoints,[篇名]Energyfromelectricresistanceheatersectionsoverthevesselsurfaceatlocalheattreatmentofringwelds。
简介:摘要: 热处理是锅炉及主蒸汽压力合金钢 管道必不可少的一项重要工序,如何做好热处理这项工作是每一热处理负责人应该考虑的首要工作,在热处理过程中往往会出现停电、加热片 (绳 )烧断、温度无法达到设定温度等等这样那样的问题,要想焊口热处理合格避免这些问题的出现应该首先从以下几个方面入手:
简介:Increasingtheefficiencyoflaserheattreatmentofalathetoolwithallowancefortheinfluenceofthecuttingregimes.Laserbeamcladdingcharacteristicsofhighchromiumcastirononcarbonsteel.Fourieropticalresearchonwide-bandscanningrotatingmirrorofthehighpowerlaser.LaserBeamCladdingCharacteristicsofWCDispersedHastelloyonCarbonSteel.
简介:[篇名]Developmentofmulti-layer,aluminum-tin-siliconalloybearingforautomotivedieselengine,[篇名]Simulationofphaseappearance,phasedissolution,andsoluteredistributiononmulticomponentaluminumcastingalloys,[篇名]Improvementoffatiguestrengthinaluminiumcastings,[篇名]Impactenergyabsorptionofmetalfoamwiththecontrolledmicrostructureunderdynamicloading,[篇名]EffectsofsolidsolutiontreatmentsonmicrostructureandmechanicalpropertiesofAM60BmagnesiumalloyswithREaddition,[篇名]TheeffectofheattreatmentandorientationonthemechanicalbehaviorofextrudedMg-Al-Znalloy,[篇名]Fatigueandfrettingfatigueofbiomaterial.Ti-29NB-13TA-4.6ZR,Inairandsimulatedbodyenvironment。
简介:Peculiaritiesofdeformationandstructureformationinnitrogen-containingsteelsofvariousstructuralkinds,FrictionalgripconnectionswithNiTiform-memoryalloys.Influenceofthepost-deformationannealingheattreatmentonthelow-cyctefatigueofNiTishapememoryalloys.StrengthEvaluationofAluminumAlloyBoltbyNano-IndentationHardnessTest.SuperplasticDeformationBehaviorof7075AluminumAlloy