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简介：液相线设计通常在恒压指ternaryliquidus单变的线的二维的设计。算法为液体的计算在Pandat使用了我们有在一个三元系统的等温的线和不变的反应方程的设计被介绍。这些算法被扩大了到多部件液体我们设计并且也在Pandat被实现了。第三、第四级的液体上的一些例子我们设计被介绍。

简介：ＳｏｍｅＡｓｐｅｃｔｓｉｎＡｐｐｌｉｃａｔｉｏｎｏｆＭｉｃｒｏｓｃｏｐｉｃａｌａｎｄＭｉｃｒｏａｎａｌｙｔｉｃａｌＴｅｃｈｎｉｑｕｅｓＳｈａＷｅｉ（沙维）（ＤｅｐａｒｔｍｅｎｔｏｆＭａｔｅｒｉａｌｓＳｃｉｅｎｃｅａｎｄＭｅｔａｌｌｕｒｇｙ，Ｕｎｉｖｅ...

简介：AnanalysistechniquecombiningRBSwithPIXEtechnologybyx-particlesincidentbeamwasconstructedandappliedtoanalyselightimpuritiesinheaviersubstrates.ItcanruninmeasuringRutherfordbackscatteringandX-rayspectrainrandomandchannelingmode,simultaneously.Beingusedtoanalysesulphuratomsim-plantedintoGaAssinglecrystals,thismethodisrelativelysimpleandquick-operating.Itisespeciallyusefulforanalysinglightimpuritiesinsemiconductorcompounds,optoelectronicandmicrowavematerials.

简介：ThefatiguebehaviorofweldedstructuresiscurrentlydeterminedbymeansofrecommendationsdefinedintermsofS-Ncurvecorrespondingtothedetailclassesofweldedjointswithouttakingaccountoftheactualgeometryoftheweld.AnewfatiguestrengthassessmentmethodbasedonDangVanmultiaxialfatiguelimitcriterionwasintroduced,whichisnamedthelocalapproachandpresentedbyInstitutdeSoudurerecently.Thelocalapproachhasadvantagesintakingweldingresidualstressesandthegeometryoftheweldtoeandweldrootintoconsideration.TheapplicationofthelocalapproachtothefatiguestrengthassessmentoflowcarbonsteelQ235Bweldedjointswasstudied.ThefatiguetestsandfiniteelementanalysisresultsshowthatthelocalapproachparametersrecommendedbyInstitutdeSoudurewereincorrectlyforlowcarbonsteelQ235Bweldedjoints.Withaluminumalloyweldedjointsbeingusedwidely,theparametersofthelocalapproachusedforaluminumalloyweldedjointswereobtainedandverifiedonbasesofthefatiguetestsandfiniteelementanalysis.

简介：Imagesensorhasbeenoneofthekeytechnologiesinintellectualizedroboticswelding.Edgedetectionplaysanimportantrolewhenthevisiontechnologyisappliedinintellectualizedweldingroboticstechnologies.Thereareallkindsofnoisesinweldingenvironment.Thealgorithmsincommonusecannotbeappliedtotherecognitionofweldingenvironmentdirectly.Theedgeofimagescanbefellintofourtypes.Theweldimagesareclassifiedbythecharacteristicofweldingenvironmentinthispaper.Thispaperanalyzessomealgorithmsofedgedetectionaccordingtothecharacterofweldingimage,somerelativeadvantagesanddisadvantagesarepointedoutwhenthesealgorithmsareusedinthisfield,andsomesuggestionsaregiven.Thefeatureextractionofweldseamandweldpoolaretwotypicalproblemsintherealizationofintellectualizedwelding.Theiredgefeaturesareextractedandtheresultsshowtheapplicabilityofdifferentedgedetectors.Thetradeoffbetweenprecisionandcalculatedtimeisalsoconsideredfordifferentapplication.

简介：Thetenacityofheat-affectedzone(HAZ)willdeclineandthesizeofgrainswillincrease,becauseoftheoverheatingonHAZwhensubmergedarcwelding(SAW)isusedtothickplatewithhighheatinput.TheshapingwillworsenwhenSAWisusedtothinplatewithhighcurrentathighspeed.AnewSAWtechnology,thepulseddirectcurrent(DC)automaticSAW,willbeputforwardinthispaperinordertoovercometheaboveshortcomings.Andapulsedcontrollerwithmicro-controllerunit(MCU)asthecore,nixietube(NT)andkeyboardastheman-machineconversationinterfaceisdeveloped.Themainfunctionsofthepulsedcontrollerincludetheoutputofpulsedweldingcurrentandtheworkingwithtwinwire.Theresearchhaswidelyprospectsinapplicationwithsignificantmeaningsintheoryandpracticalengineering.

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简介：AnewtypeofDZ9000EOxygenGaseousHVOFsystem(GHVOF)isdevelopedwhichcanreducethecostofcoatingsandincreasethein-situremovabilitytoadaptvariousworkingconditions.Thewholesystemiseconomical,whichenablesthesystemtomeettherequirementofsprayingmediumorlowcostHighVelocityOxy-Fuel(HVOF)coatingsformediumandsmalljobshops.ThedepositedcermetscoatingsbytheDZ9000EsystemhavegoodperformancewithaveragemicrohardnessHV0.2ofmorethan1000andthebondstrengthbetweencoatingandsubstrateofgreaterthan50MPa.

简介：Aimingattheweldingconditionofspacecomplexseamisuncertainandtheintelligenceofweldingrobotisunideal,atwo-wheeledmobilerobotisdeveloped.Itnotonlyhasthecapacityofautonomousdecisionandavoidingobstacles,butalsocanflexiblymoveandstronglyadaptvariableenvironment.Thecompositionoftheweldingrobotisdescribedandthedynamicmodelisestablished.Thefeasiblecontrolstrategyandcontrolalgorithmisputforward.Thesimulationexperimentsofrealworldareconducted,theresultsaresatisfying.

简介：Recoveryprocessesofsecondaryresourcesusuallyencounterproblemsbecauseofthediversecompositionsofwastes.Toenhancetheapplicabilityoftraditionalhydrometallurgicalprocesstowardsecondaryresources,theadjustmentofcomponentsisnecessary.Intraditionalhydrometallurgicalseparation,precipitationandcomplexationareextensivelyused.However,theircombinationasaspecificmetalseparationmethodhasnotyetbeenstudiedindetail.Thisapproachisverypromisingforsolvingproblemscausedbychangeablecomponentsduringrecyclingprocessesofsecondaryresources.Thispaperreviewstheeffectsofprecipitationandcomplexationinmetalseparationprocesses,andametalseparationmethodsystemof‘‘complexation–precipitation’’developedtoadjustthecomponentsofsecondaryresourcesisintroduced.

简介：MagneticBarkhausennoise(MBN)isaphenomenonofelectromagneticenergyduetothemovementofmagneticdomainwallsinsideferromagneticmaterialswhentheyarelocallymagnetizedbyanalternatingmagneticfields.AccordingtoFaraday’slawofelectromagneticinduction,thenoisecanbereceivedbythecoilattachedtothesurfaceofthematerialbeingmagnetizedandthenoisecarriesthemessageofthecharacteristicsofthematerialsuchasstresses,hardness,phasecontent,etc.Basedonthecharacteristicofthenoise,researchingabouttherelationshipbetweentheresidualstressintheweldingassemblyandthenoisearecarriedout.Furthermore,dataprocessisperformedbyRMS(RootMeanSquare)equationandPowerSpectrumanalysis.

简介：为从海水的锂离子恢复过程的开发，一系列试验性的研究被执行。从把煤油用作溶剂的水的答案的锂离子的溶剂抽取被建议。锂离子被thenoyltrifluoroacetone-trioctylphosphine氧化物(TTA-TOPO)有效地在80以内在煤油提取?min。抽取效率被stoichiometric参数严重地影响。在stoichiometric参数之中，到抽取(E)答案的水的(A)的卷比率是最有影响的参数。在抽取以后，锂离子能被酸的答案容易从抽取答案剥去。有酸的溶液的pH的脱衣的效率减少，和酸的类型不影响脱衣的效率。抽取效率在超过93点维持?%甚至当抽取答案被再循环三次时。当镁离子被NH4在溶剂抽取以前的OH过程。在海水的另外的金属性的离子减少锂的抽取效率离子。

简介：VBHF(可变空白的持有者力量)优化策略被采用决定最佳的时间变量和空间变量的BHF轨道，瞄准与铝合金表改进汽车面板的formability。策略基于适应模拟被实现模拟周围在单人赛为Numisheet'05甲板盖的每个分割的文件夹计算批评起皱BHF。在最佳的VBHF和经常的BHF下面的印上的部分的厚度比较证明分别地，四节的变化被70%，44%，64%和61%减少它在厚度分发和变化控制显示重要改进。通过种类路径比较的调查揭示formability改进的基本原因。学习与铝合金表证明新VBHF优化策略的适用性到复杂部分。

简介：Inordertosolvethehigh-priceandshort-lifetimeproblemsofthecutterofagriculturalmachinery,andimprovethewearresistanceofthecutter,theTiCN/FemetalceramiccompositecoatingwaspreparedonthesubstrateofQ235steelbyreactionnitrogenarccladdingtechnique.ThemixturepowderoftitaniumandgraphitewaspreplacedontheQ235steelsurfaceafterintensivemixingbyplanetaryballmillandgluingwithstarchbinder.Themicrostructureandphaseofthecoatings,interfacebehaviorbetweencoatingsandthesubstratewereinvestigatedbyscanningelectronicmicroscopeandX-raydiffractometer.Themicro-hardnessdistributionofthecoatingsectionwastestedbymicro-hardnesstester.Frictioncoefficientandwearweightlossweremeasuredbyabrasionmachine.Wearingsurfacemorphologywasinvestigatedbyscanningelectronicmicroscope.TheresultsshowthatanexcellentbondingbetweenthecoatingsandtheQ235steelsubstrateisensuredbythestrongmetallurgicalinterfaceandphaseofthecoatings.ThecoatingsaremainlycomposedofTiCN.Thehighestmicrohardnessofthecoatingsreaches1089HVO.2,whilethemicro-hardnessofQ235steelsubstrateisonlyabout286HVO.2.Theanti-abrasivetestresultsshowthatthewearresistanceofthecladdingcoatingisbetterthanthatofquenchedandtempered65Mnsteelwhichisoftenusedascutterofagriculturalmachinery.ThefieldtestresultsshowthattheTiCN/Femetalceramiccompositecoatingpreparedbyreactionnitrogenarccladdingisfeasibletothemanufactureandremanufactureofthecutterofagriculturalmachinery.

简介：AbstractInthisstudy,mesoporoussilica/ironoxidenanocomposite（MCM-Fe203）wassynthesizedviahydrother-maltechnique.ThechemicalsynthesisofMCM-Fe203nanocompositewasachievedat18h.Theeffectofconcen-trationoftetraethylorthosilicate（TEOS）onnanocompositespropertieswasstudiedduringsynthesisprocess.Forthispur-pose,0.5,1.5,2.5,3.5,and4.5mltetraethylorthosilicate（TEOS）wereselected,respectively.ThetexturalpropertiesandmicrostructureofthenanocompositeswerecharacterizedbyX-raydiffraction（XRD）,Fouriertransforminfraredspec-troscopy（UF1R）,fieldemissionscanningelectronmicroscopy（FESEM）,N2adsorption-desorption,andvibratingsamplemagnetometer（VSM）analysis.Resultsshowthatthenanocom-positewithtetraethylorthosilicate（TEOS）/cetyltrimethylam-moniumbromide（CTAB）ratioof5exhibitslargesurfaceareas（461.19mZ.gJ）.Furthermore,thisnanocompositeshowssuperparamagneticbehaviorunderexternalmagneticfieldcomparedtoothersamples.Moreover,resultsofremovalofmetalionsindicatethatadsorptionofNi（II）,Cd（II）,Cr（III）,Zn（II）,andPb（II）ionsonthesurfaceofadsorbent（nanocom-posite）increaseswiththeincreaseinsolutionpH,contacttime,andadsorbentdosage.Furthermore,themaximumremovalratesofheavymetalsionsreach53.0%,79.0%,61.0%,89.0%,and99.5%atpHof5,timeof50min,andtheweightofadsorbentof0.16with2.5mlTEOS,respectively.

简介：Thedigitalizationofarcweldingpowersourcemainlydependsonthedigitalizationofarcweldinginverter,sothatmaincircuitandcontrollingsystemcangivefullplaytoadvantages.DigitalswitchingcontrolmakesmaincircuitdigitalandDSPand/orMCUmakescontrollingsystem,digital.SoIGBTdrivingcircuit,asatieofmaincircuitandcontrollingsystem,shouldalsobegotdigitalized.Thus,adigitaldrivingcircuitbasedonoptocouplerdeviceHCPL-316Jisprovided.Sometestingexperimentsweredone.Afterdrivingtesting,thedrivingcircuitcertificatesthatdrivingwaveformssatisfytherequirementsofarcweldingpowersourceandthedrivingcircuitisreasonablyandsimplydesigned.Andthedrivingcircuithashighcontrollingprecisionandreliability.No-load-voltagetestingandweldingexternalcharacteristictestingprovethatthedrivingcircuitcanbeappliedinarcweldingpowersource.

简介：AnewsimulationmodelofCO2short-circuitingtransferweldingmaybeemployedtodevelopanewpatternofweldingmachineandtopredictweldingprocessparameterstoobtaintheoptimumweldingtechnologyproperties.Inthispaper,anewsimulatingmodelisdevelopedaccordingtotheAWP(adaptingweldingphysicsprocess)waveformcontrolmethod.Goodagreementisshownbetweenthepredictedandexperimentallydeterminedresults.ThemodelwillmakeanimportantpromotioninthedevelopmentofCO2arcweldingtechnique.

简介：Nuggetsplashduringaluminumalloysspotweldinghasadetrimentaleffectonweldnuggetintegrity,strengthanddurabilityoftheweldedjoints.Thisinvestigationisperformedtoidentifynuggetsplashfromvoltagesignalsbecausetheseareeasilyaccessibleon-line.Inthepresentwork,weproposeanovelmethodbasedonthewaveletpackettransformanditsenergyspectrumforpatternrecognitionofsplashsignal.Theresultdemonstratesthatthisnovelmethodismoreaccuracyandausefulwayofmonitoringthespotweldingquality.

简介：Basedonthephasediagrams,measuredactivitiesandtheannexationprinciple,thecalculatingmodelsofmassactionconcentrationsforIn-Pb-AgandIn-Bi-Sbternarymetallicmeltshavebeenformulated.Theresultsofcalculationbothagreewithpractice,andobeythelawofmassaction,showingthatthemodelsformulatedcanreflectthestructuralrealityofthecorrespondingmeltsandtheannexationprincipleisapplicabletothethem.