简介:深圳雷地科技实业公司收到中国人民解放军总装备部航天医学工程研究所的感谢信,感谢雷地公司“协作配套研制的产品参加了我国首次载人航天飞行任务。在神舟五号飞船测试、发射、运行和回收的各个阶段,产品性能稳定,工作正常,有力地配合了我所圆满完成本次意义重大的参试任务。”原来,航天员杨利伟头盔面罩上的“保护膜”及宇航服上金属部件的表面处理,就是雷地公司研制完成的。
简介:利用AmoCAD2000绘图软件的强大功能,能快速进行压铸模具的设计。软件能根据持停形状迅速生成模具的三维实体圉,而三堆实体图又能自动生成三视图.大大简化了人工设计与绘图等工作.彻底改变了传统的模具设计方法,成为现代先进的模具设计技术
简介:AnewtypeofDZ9000EOxygenGaseousHVOFsystem(GHVOF)isdevelopedwhichcanreducethecostofcoatingsandincreasethein-situremovabilitytoadaptvariousworkingconditions.Thewholesystemiseconomical,whichenablesthesystemtomeettherequirementofsprayingmediumorlowcostHighVelocityOxy-Fuel(HVOF)coatingsformediumandsmalljobshops.ThedepositedcermetscoatingsbytheDZ9000EsystemhavegoodperformancewithaveragemicrohardnessHV0.2ofmorethan1000andthebondstrengthbetweencoatingandsubstrateofgreaterthan50MPa.
简介:Basedonthemethodofartificialneuralnetwork,anewapproachhasbeendevisedtopredictthemechanicalpropertyofE4303electrode.Theoutlinedpredicationmodelfordeterminingthemechanicalpropertyofelectrodewasbuiltupontheproductiondata.Theresearchleveragesabackpropagationalgorithmastheneuralnetwork'slearningrule.Theresultindicatesthattherearepositivecorrelationsbetweenthepredictedresultsandthepracticalproductiondata.Hence,usingtheneuralnetwork,predicationofelectrodepropertycanberealized.Forthefirsttime,thisresearchprovidesamorescientificmethodfordesigningelectrode.