学科分类
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241 个结果
  • 简介:黄铜药筒在使用时发生爆裂,为了解决其安全服役,提高产品的质量,通过对失效药筒及对比件进行了断口宏观及微观观察、金相组织检查、氨薰试验、超声检测等分析测试手段,结合生产工艺全流程的跟踪调查工作,找到了黄铜药筒发生开裂失效的根本原因。分析表明:产品失效是由铸造工序产生的气孔引起的,并提出了合理的改进建议,如采取严格烘烤物料,增加排气时间,适当降低拉坯速率,超声探伤检验等措施,经过半年跟踪研究发现,该企业生产的铸坯成品率显著提高,超声检查所有药筒成品再未发现存在内部裂纹现象。

  • 标签: 黄铜药筒 失效 铸造 气孔 超声探伤
  • 简介:Compositeplatingcontainingnanometer-sizedparticlesfromanon-aqueouselectrolyte;CompositeplatingofNi/SiCusingazo-cationicsurfactantsandwearresistanceofcoatings;Developmentofrapidcompositeplatingsystemformotorcycleenginecylinders;DynamicResponseofLaminatedCompositePlateusingFirstOrderShearDeformationTheory

  • 标签: 复合电镀 纳米颗粒 碳化硅 磨损性能
  • 简介:[篇名]InfluenceofWCadditionanmicrostructuresoflaser-meltedNi-basedalloycoating,[篇名]MicrostructureanddryslidingwearbehavioroflasercladNi-basedalloycoatingwiththeadditionofSiC,[篇名]PreparationofAdvancedLithiumSecondaryBatterieswithTin-IronAlloyPlatingAnodesandTheirCharge-DischargeBehaviors,[篇名]SnAg-alloycoatingforconnectorsandsolderingapplications,[篇名]Structureandpropertiesofwear-resistanttitaniumcarbonitride-basedcoatings,[篇名]TheanalysisofthedepositionmechanismofZn/NialloyplatingusinganEQCM,[篇名]Theeffectofheattreatmentonwearresistanceofpartshavinghard-alloycoating.

  • 标签: 镀合金 微观结构 激光熔炼
  • 简介:AdvancedLithiumSecondaryBatteriesUsingTin-IronAlloyNegativeElectrodesPreparedbyElectroplating;CavitationerosionofTi-Nishapememoryalloycoating;Effectsoffueldyeonthehotcorrosionresistanceofmarinegasturbinematerials;EffectsofphosphorouscontentsandambienthumidityonthefrictionandwearpropertiesofNi-W-PalloyplatingFrictionandwearofelectrolessNialloyplatedgearundernon-lubricationconditioninhighvacuum

  • 标签: 镀合金 气穴侵蚀 电极预备 钛-镍形状记忆合金
  • 简介:AdvancesinEnhancedBoilingtteatTransferFromElectronicComponents;AFMstudyofultrathintri-blockcopolymerfilmsontailoredgraftedpolymerlayer;AirConditionerInverterforElectricVehicle;Aneffectofinertgasonsurfacefihnformationandwoltagedlopofslidingcontacts;Analysisofahomopolardiskgeneratorviaequivalentnetwork

  • 标签: 刷镀 热转换 电子成分 聚合薄膜 空气条件
  • 简介:[篇名]AFrameworkforTransferColorsBasedontheBasicColorCategories,[篇名]Agraphicaltabletusingthermalsensor,[篇名]AMethodforOptimisingtheWeightandResponseofBrush-TypeWound-FieldDirectCurrentMotors,[篇名]Anumericalstudyofweaklyturbulentpremixedcombustionwithflamespeedclosuremodel,[篇名]Astrongerstartyieldsasmootherfinish,[篇名]Astudyofbrushghostmarkinthedeformationring,[篇名]Astudyontiremodelingforcamberthrustandcambertorque.

  • 标签: 刷镀 热传感器 颜色变换 图像处理
  • 简介:[篇名]Afieldstudyonvalidationofsupplementalbrakelampwithflashingturnsignalsformotorcycles,[篇名]AgthinfilmonSiasthelubricantunderultra-highvacuumandtheeffectofadsorbedgasmoleculesonfriction,[篇名]CleaningandDe-OilingwithLow-PressureFlashingFlow,[篇名]Companionadvancedhazardwarningsystem,[篇名]Developmentsinprocesscontrolmonitoring,[篇名]Doroadengineeringinterventionsreduceon-campusobstructionatpedestriancrossings?[篇名]EvolvingSpikingNeuronControllersforPhototaxisandPhonotaxis.

  • 标签: 闪镀 腐蚀保护 摩托车 硅薄膜 真空扩散
  • 简介:

  • 标签:
  • 简介:SY509-3-78[篇名]EnergyAbsorptioninChoppedCarbonFiberCompressionMoldedComposites;SY509-3-79[篇名]Hybridcontrolofsoundfieldsfromvibratinglaminatedplateusingpiezoelectricandviscoelasticmaterial;……

  • 标签: 复合镀 碳素纤维 压模复合材料 腐蚀防护
  • 简介:

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  • 简介:SY509-3-106[篇名]Bristlemechanismstudyofashapereconfigyrablebrushrobot;SY509-3-107[篇名]BRUSHHOLDERSYSTEMMINIMIZESOPPORTUNITYFORCOLLECTORRINGWEAR;SY509-3-108[篇名]Brushinguponyourmaintenancepractices;……

  • 标签: 刷镀工艺 工业机器人 表面处理 腐蚀防护