




版权说明:本文档由用户提供并上传,收益归属内容提供方,若内容存在侵权,请进行举报或认领
文档简介
TheBMWPartnershipDryFilmLubricants08.03.2005PresentationoftheCastrol“DryFilm”projectatBMW,Oxford(UK)TheBMWPartnershipDryFilmLuHistoryofSteelMillAppliedLubricantsCORROSIONPREVENTIVESDRYFILMLUBRICANTSBASEDONPOLYMER2.GENERATIONPRELUBESSEMIDRYFILMLUBRICANTSTHIXOTROPICCORROSIONPREVENTIVESPRELUBES2.GENERATIONTHIXOTROPICCORR.PREVENTIVESDRYFILMLUBRICANTSBASEDONPARAFFINDRYFILMLUBRICANTSBASEDONWAXDISPERSIONDRYFILMLUBRICANTSBASEDONESTER1990199620002001HistoryofSteelMillAppliedAdvantagesoftheDryFilmTechnologySuperiorlubricationMultisubstratecompatibilityincludingaluminumDry-to-the-touchfilmReducedquantitiesappliedMechanicalsurfaceprotectionCleanworkingenvironmentAdvantagesoftheDryFilmTecTypesofDryFilmLubricantsEsterMineraloilbasedHotmeltPolymerOrganicsolvendbasedWaterbasedVOCEnergyTypesofDryFilmLubricantsEsTypesofDryFilmLubricantsSemiDryFilmLubricants-Greasy-KonusPenetrationappr.20mmDryFilmLubricants-Lacqueurorwaxy-NeedlePenetration<10mmTypesofDryFilmLubricantsSTypesofDryFilmLubricants
AdvantagesofesterbasedhotmeltsExtremedrawingperformanceExcellentcorrosionprotectionNodryingorcuringtimeNoemissions,noVOCEasyapplication(electrostaticorairless)EnvironmentallyfriendlyBasedonrenewablerawmaterialsTypesofDryFilmLubricants
R&DDemandsforDryFilmLubricantDesignSignificantlyimproveddrawingperformancecomparedtoprelubesApplicationwithexistingelectrostaticsprayequipmentCompatibilitywithexistingandfuturecataphoreticdippaintsystemsSealerandadhesivecompatibilityOneproductforsteelandaluminumEnvironmentallyfriendlyR&DDemandsforDryFilmLubriTypicalFrictionCoefficientsforLubricantsTypicalFrictionCoefficientsCastrolDryFilmLubricantIloformPN950DF
R+KTester–CupDrawingTest,SubstrateZECastrolDryFilmLubricantIloEvaluationofthedrawingperformancebyusingthe
stripdrawingtestCooperationwiththeUniversityofWaterloo(Canada).Usingthe“FlatDieRigg”,builtbyajointaction.Drawingspeed:0–500mm/sMaximumforce(witha10000mm²“Tool”):75N/mm²VariablecontactareaQuicktoolchangepossiblePossibletooltemperature:RT–appr.>300°CComputerisedcalculationofthefrictioncoefficientµQuickchangeofmaterial,lubricantandcoatingweightpossible EvaluationofthedrawingperfFlatDieRig
DrawingIFlatDieRig
DrawingIFlatDieRig
DrawingIIFlatDieRig
DrawingIITestFacilityattheUniversityofWaterloo(CAN)
“FlatDieRigg”modified80tpressTestFacilityattheUniversitDryFilmLubricantondifferentmaterials
FlatDieTestStation
-
UniversityofWaterloo
ResultsofIloformPN950DFacc.VDA230-201Forcelimitsetto400kNThemaximumforcewaslimitesduringthetestsduetosafetyreasons(40N/mm²).Ingeneralanmaximumfordeof75N/mm²ispossiblebyrespectingtheVDAparameters.Duringthetest,nostick-slipwereseenforCastrolIloformPN950DF.V=const.MineraloilbasedDryFilmLubricantsPrelubes**ConventionalPrelubes(mineraloilbased)DryFilmLubricantondifferenDryFilmLubricantonBareSteel
TestResultsIloformPN950DFanalogVDA230-201Maximumnormalforcewasonlylimitedbythesettingofthetestequipment,afteradjustingthissettingwewillbecapabletoperformtestsupto75N/mm².Duringourpreliminarytestingnostick-slipwasobserved.DryFilmLubricantonBareSteDryFilmLubricantonElectrogalvanizedMaterial
TestResultsIloformPN950DFanalogVDA230-201Maximumnormalforcewasonlylimitedbythesettingofthetestequipment,afteradjustingthissettingwewillbecapabletoperformtestsupto75N/mm².Duringourpreliminarytestingnostick-slipwasobserved.DryFilmLubricantonElectrogDryFilmLubricantonHot-dipGalvanizedMaterial
TestResultsIloformPN950DFanalogVDA230-20Maximumnormalforcewasonlylimitedbythesettingofthetestequipment,afteradjustingthissettingwewillbecapabletoperformtestsupto75N/mm².Duringourpreliminarytestingnostick-slipwasobserved.DryFilmLubricantonHot-dipDryFilmLubricantonGalvanealedMaterial
TestResultsIloformPN950DFanalogVDA230-20Maximumnormalforcewasonlylimitedbythesettingofthetestequipment,afteradjustingthissettingwewillbecapabletoperformtestsupto75N/mm².Duringourpreliminarytestingnostick-slipwasobserved.DryFilmLubricantonGalvaneaDryFilmLubricantonAluminum
TestResultsIloformPN950DFanalogVDA230-20Maximumnormalforcewasonlylimitedbythesettingofthetestequipment,afteradjustingthissettingwewillbecapabletoperformtestsupto75N/mm².Duringourpreliminarytestingnostick-slipwasobserved.DryFilmLubricantonAluminumInfluenceofDieTemperatureonFrictionCoefficient
IloformPN950DFonElectrogalvanizedMaterialFrictioncoefficientdeterminedat400mm/sdrawingspeedInfluenceofDieTemperatureoRemovabilityTestIloformPN950DF
acc.toVDA230-201andRenaultSpecificationSubstratebaresteelelectrogalv.hot-dipgalv.galvannealedRenaultSpec./Sollac-TestpassedpassedpassedpassedSubstratebaresteelelectrogalv.hot-dipgalv.galvannealedVDA-TestpassedpassedpassedpassedRemovabilityTestIloformPN9AdhesiveCompatibility
TestingaccordingtoVDA230-201AdhesiveIloformDFXW1185Epoxy(GEX)allsubstrateso.k.Terostat3216Rubber(Henkel)allsubstrateso.k.Terokal8552PVC(Henkel)allsubstrateso.k.AdhesiveCompatibility
TestingCataphoreticDipPaintCompatibility
accordingtoVDA230-202-IloformPN950DFTypeCraterPPGEnviroprime0PPGEnviroprime20000Source:PPGCataphoreticDipPaintCompatiIloformPN950DF
DryFilmLubricantAppearance white,solidViscosityat20°C solidViscosityat50°C 34mm²/sFlashpoint <200°CCorrosionprotection CondensationclimatechamberDIN51386-1 >20CyclesSaltspraytestASTMB-117 >24hOpenshedstorage min.12monthIndoorstorage min.18monthIloformPN950DF
DryFilmLuViscosityTemperatureChart
CastrolDryFilmLubricant:IloformPN950DFViscosityTemperatureChart
CTrials英国石油公司(BP石油)为某汽车公司提供的干式润滑方案DryFilmLubricantIloformPN950DF
CaseStudies1/1
ElectroluxHomeProducts-Swainsboro,GA
May2002Lawnmowerdecks,part#4055IFand404blanksize807x1000x1.9and825x750x1.9mm,baresteelsheetmetalcoatingweightvariable1.6–6.0g/m²,preparedbyelectrostaticspraying(Gencoat)
200partssuccessfullyproducedandassembledDryFilmLubricantIloformPNca.750mmca.160mm
ProfileofthepressingpartElectroluxHomeProducts,Swainsboro,GADryFilmLubricantIloformPN950DF
CaseStudies1/2ca.750mmca.160mm
Profileo
ElectroluxHomeProducts-Swainsboro,GAOctober2003Lawnmowerdecks„Hi-Vac“blanksize825x750x1.9mm,baresteelsheetmetalcoatingweightvariableappr.2.0g/m²,preparedmanualExtremedifficultpart,duetothehighfailurerateitiscalledinternally50:50deckResult:FailratewithCastrolDryFilmtechnologyreducedto„0“DryFilmLubricantIloformPN950DF
CaseStudies2/1ElectroluxHomeProducts-Swca.600mmca.300mm
ProfileofthepressingpartElectroluxHomeProducts,Swainsboro,GADryFilmLubricantIloformPN950DF
CaseStudies2/2ca.600mmca.300mm
ProfileDryFilmLubricantIloformPN950DF
CaseStudies2/3–PictureDryFilmLubricantIloformPN
FordStampingPlant-Saarlouis,Germany
June2003Inner-bodysidepanel,Focus3-doorhatchbackblanksize1525x3475x0.75mm,hot-dipgalvanizedsheetmetalcoatingweight1.2–1.4g/m²,preparedbyelectrostaticspraying(ThyssenKruppStahlNeuwied,sprayequipmentFaraTechnology)500partssuccessfullyproducedandassembledDryFilmLubricantIloformPN950DF
CaseStudies3/1FordStampingPlant-Saarlou
DryFilmLubricantIloformPN950DF
CaseStudies3/2-Picture
DryFilmLubricantIloformPNMetalsheetsdry-to-the-touchNoparticlecontaminationNoproblemsinthede-stackingprocessOnlyslightmodificationoftheclampforcewasnecessaryinthebeginningMaintrial550o.K.partsUsageofthepartswithoutproblemsDryFilmLubricantIloformPN950DF
CaseStudies3/3Metalsheetsdry-to-the-touchDAUDIStampingPlant-Ingolstadt,GermanyJune2003Inner-doorpanel,A4Blanksizeappr.1525x1735x0.75mm,hot-dipgalvanizedsheetmetalCoatingweight1.2–1.4g/m²,preparedbyelectrostaticSpraying(ThyssenKruppStahlNeuwied,sprayequipmentFaraTechnology)30partssuccessfullyproducedandpassedthrougttheadditionalprocesses(cleaning,phosphatingandpaintingo.K.)DryFilmLubricantIloformPN950DF
CaseStudies4/1AUDIStampingPlant-Ingolsta„MetallwerkHofmaninger,Austria“Pretrial:PressingofaconcetemixerpartDryFilmLubricantIloformPN950DF
CaseStudies5/1„MetallwerkHofmaninger,AustrDryFilmLubricantIloformPN950DF
CaseStudies5/2-PictureDryFilmLubricantIloformPN190mm390mmØ578mmpart:concretemixerMetallsheet:960x1mmDryFilmLubricantIloformPN950DF
CaseStudies5/3-Drawing190mm390mmØ578mmpart:concAspayablealternativeforthecurrentproduct„CastrolIloformPS158“.Duetotheamountofsolidadditivestheapplicationofthistheproductcouldonlybemademanuallyviarollerorbrush.Material:1,0mmDC03ofvoestalpineTheapplicationinthispretrialwasmademanualbybrushwithoutmeasuringthefilmthickness,therforewedonothaveanyinformationaboutthisfact.1punchFurtheractions:Trialswithadefinedproductamounttoevaluatetheminimumdryfilmquantityforasafeprocess.DryFilmLubricantIloformPN950DF
CaseStudies5/4Aspayablealternativeforthe
FordStampingPlant-Saarlouis,Germany
December2004Innerwheelhouseforthebackwheel,C-MAXgalvanealedsheetmetal,coatingweight0.6–1.4g/m²(nothomogenous),preparedbyairspray(ARCELORFlemalle),difficultoperationneedfortheconventionalproductionwithoilaamountof>5g/m²1000partssuccessfullyproduced(nofailpart,verycleantoolswithoutanydeposits)DryFilmLubricantIloformPN950DF
CaseStudies6/1FordStampingPlant-SaarlouVWStampingPlant-Emden,GermanyJanuary2005InnerpanelforthePassatdoor,HDGtailoredblank(thickness:0.7and1.6mm)Coatingweight(applicationmanuallywithaspraygun):0.9-1.2g/m²-comparisonwithcompetitorproducts10partssuccessfullyproducedduringthenormalproductionprocesswiththeadjustmentsusedforthenormal„oil“lubricationResult:nobreakswereseen/onlyslightwavinessoccured(noproductproblem,adjustmentsofthetoolforcesarenecessary)10partsarereadyfortheadjustmenttrialsinthe„Try-Out-Press“inthefutureDryFilmLubricantIloformPN950DF
CaseStudies6/1VWStampingPlant-Emden,GerCurrentlyweareworkinginthisspecialareaalsoin:EuropeUSAAustraliaKorea EspeciallyintheUSAweareworkingcloselywithThyssen.Acostreductionmorethan$1mio.peryearcouldberealised.CurrentlyweareworkinginthTheBMWPartnershipDryFilmLubricants08.03.2005PresentationoftheCastrol“DryFilm”projectatBMW,Oxford(UK)TheBMWPartnershipDryFilmLuHistoryofSteelMillAppliedLubricantsCORROSIONPREVENTIVESDRYFILMLUBRICANTSBASEDONPOLYMER2.GENERATIONPRELUBESSEMIDRYFILMLUBRICANTSTHIXOTROPICCORROSIONPREVENTIVESPRELUBES2.GENERATIONTHIXOTROPICCORR.PREVENTIVESDRYFILMLUBRICANTSBASEDONPARAFFINDRYFILMLUBRICANTSBASEDONWAXDISPERSIONDRYFILMLUBRICANTSBASEDONESTER1990199620002001HistoryofSteelMillAppliedAdvantagesoftheDryFilmTechnologySuperiorlubricationMultisubstratecompatibilityincludingaluminumDry-to-the-touchfilmReducedquantitiesappliedMechanicalsurfaceprotectionCleanworkingenvironmentAdvantagesoftheDryFilmTecTypesofDryFilmLubricantsEsterMineraloilbasedHotmeltPolymerOrganicsolvendbasedWaterbasedVOCEnergyTypesofDryFilmLubricantsEsTypesofDryFilmLubricantsSemiDryFilmLubricants-Greasy-KonusPenetrationappr.20mmDryFilmLubricants-Lacqueurorwaxy-NeedlePenetration<10mmTypesofDryFilmLubricantsSTypesofDryFilmLubricants
AdvantagesofesterbasedhotmeltsExtremedrawingperformanceExcellentcorrosionprotectionNodryingorcuringtimeNoemissions,noVOCEasyapplication(electrostaticorairless)EnvironmentallyfriendlyBasedonrenewablerawmaterialsTypesofDryFilmLubricants
R&DDemandsforDryFilmLubricantDesignSignificantlyimproveddrawingperformancecomparedtoprelubesApplicationwithexistingelectrostaticsprayequipmentCompatibilitywithexistingandfuturecataphoreticdippaintsystemsSealerandadhesivecompatibilityOneproductforsteelandaluminumEnvironmentallyfriendlyR&DDemandsforDryFilmLubriTypicalFrictionCoefficientsforLubricantsTypicalFrictionCoefficientsCastrolDryFilmLubricantIloformPN950DF
R+KTester–CupDrawingTest,SubstrateZECastrolDryFilmLubricantIloEvaluationofthedrawingperformancebyusingthe
stripdrawingtestCooperationwiththeUniversityofWaterloo(Canada).Usingthe“FlatDieRigg”,builtbyajointaction.Drawingspeed:0–500mm/sMaximumforce(witha10000mm²“Tool”):75N/mm²VariablecontactareaQuicktoolchangepossiblePossibletooltemperature:RT–appr.>300°CComputerisedcalculationofthefrictioncoefficientµQuickchangeofmaterial,lubricantandcoatingweightpossible EvaluationofthedrawingperfFlatDieRig
DrawingIFlatDieRig
DrawingIFlatDieRig
DrawingIIFlatDieRig
DrawingIITestFacilityattheUniversityofWaterloo(CAN)
“FlatDieRigg”modified80tpressTestFacilityattheUniversitDryFilmLubricantondifferentmaterials
FlatDieTestStation
-
UniversityofWaterloo
ResultsofIloformPN950DFacc.VDA230-201Forcelimitsetto400kNThemaximumforcewaslimitesduringthetestsduetosafetyreasons(40N/mm²).Ingeneralanmaximumfordeof75N/mm²ispossiblebyrespectingtheVDAparameters.Duringthetest,nostick-slipwereseenforCastrolIloformPN950DF.V=const.MineraloilbasedDryFilmLubricantsPrelubes**ConventionalPrelubes(mineraloilbased)DryFilmLubricantondifferenDryFilmLubricantonBareSteel
TestResultsIloformPN950DFanalogVDA230-201Maximumnormalforcewasonlylimitedbythesettingofthetestequipment,afteradjustingthissettingwewillbecapabletoperformtestsupto75N/mm².Duringourpreliminarytestingnostick-slipwasobserved.DryFilmLubricantonBareSteDryFilmLubricantonElectrogalvanizedMaterial
TestResultsIloformPN950DFanalogVDA230-201Maximumnormalforcewasonlylimitedbythesettingofthetestequipment,afteradjustingthissettingwewillbecapabletoperformtestsupto75N/mm².Duringourpreliminarytestingnostick-slipwasobserved.DryFilmLubricantonElectrogDryFilmLubricantonHot-dipGalvanizedMaterial
TestResultsIloformPN950DFanalogVDA230-20Maximumnormalforcewasonlylimitedbythesettingofthetestequipment,afteradjustingthissettingwewillbecapabletoperformtestsupto75N/mm².Duringourpreliminarytestingnostick-slipwasobserved.DryFilmLubricantonHot-dipDryFilmLubricantonGalvanealedMaterial
TestResultsIloformPN950DFanalogVDA230-20Maximumnormalforcewasonlylimitedbythesettingofthetestequipment,afteradjustingthissettingwewillbecapabletoperformtestsupto75N/mm².Duringourpreliminarytestingnostick-slipwasobserved.DryFilmLubricantonGalvaneaDryFilmLubricantonAluminum
TestResultsIloformPN950DFanalogVDA230-20Maximumnormalforcewasonlylimitedbythesettingofthetestequipment,afteradjustingthissettingwewillbecapabletoperformtestsupto75N/mm².Duringourpreliminarytestingnostick-slipwasobserved.DryFilmLubricantonAluminumInfluenceofDieTemperatureonFrictionCoefficient
IloformPN950DFonElectrogalvanizedMaterialFrictioncoefficientdeterminedat400mm/sdrawingspeedInfluenceofDieTemperatureoRemovabilityTestIloformPN950DF
acc.toVDA230-201andRenaultSpecificationSubstratebaresteelelectrogalv.hot-dipgalv.galvannealedRenaultSpec./Sollac-TestpassedpassedpassedpassedSubstratebaresteelelectrogalv.hot-dipgalv.galvannealedVDA-TestpassedpassedpassedpassedRemovabilityTestIloformPN9AdhesiveCompatibility
TestingaccordingtoVDA230-201AdhesiveIloformDFXW1185Epoxy(GEX)allsubstrateso.k.Terostat3216Rubber(Henkel)allsubstrateso.k.Terokal8552PVC(Henkel)allsubstrateso.k.AdhesiveCompatibility
TestingCataphoreticDipPaintCompatibility
accordingtoVDA230-202-IloformPN950DFTypeCraterPPGEnviroprime0PPGEnviroprime20000Source:PPGCataphoreticDipPaintCompatiIloformPN950DF
DryFilmLubricantAppearance white,solidViscosityat20°C solidViscosityat50°C 34mm²/sFlashpoint <200°CCorrosionprotection CondensationclimatechamberDIN51386-1 >20CyclesSaltspraytestASTMB-117 >24hOpenshedstorage min.12monthIndoorstorage min.18monthIloformPN950DF
DryFilmLuViscosityTemperatureChart
CastrolDryFilmLubricant:IloformPN950DFViscosityTemperatureChart
CTrials英国石油公司(BP石油)为某汽车公司提供的干式润滑方案DryFilmLubricantIloformPN950DF
CaseStudies1/1
ElectroluxHomeProducts-Swainsboro,GA
May2002Lawnmowerdecks,part#4055IFand404blanksize807x1000x1.9and825x750x1.9mm,baresteelsheetmetalcoatingweightvariable1.6–6.0g/m²,preparedbyelectrostaticspraying(Gencoat)
200partssuccessfullyproducedandassembledDryFilmLubricantIloformPNca.750mmca.160mm
ProfileofthepressingpartElectroluxHomeProducts,Swainsboro,GADryFilmLubricantIloformPN950DF
CaseStudies1/2ca.750mmca.160mm
Profileo
ElectroluxHomeProducts-Swainsboro,GAOctober2003Lawnmowerdecks„Hi-Vac“blanksize825x750x1.9mm,baresteelsheetmetalcoatingweightvariableappr.2.0g/m²,preparedmanualExtremedifficultpart,duetothehighfailurerateitiscalledinternally50:50deckResult:FailratewithCastrolDryFilmtechnologyreducedto„0“DryFilmLubricantIloformPN950DF
CaseStudies2/1ElectroluxHomeProducts-Swca.600mmca.300mm
ProfileofthepressingpartElectroluxHomeProducts,Swainsboro,GADryFilmLubricantIloformPN950DF
CaseStudies2/2ca.600mmca.300mm
ProfileDryFilmLubricantIloformPN950DF
CaseStudies2/3–PictureDryFilmLubricantIloformPN
FordStampingPlant-Saarlouis,Germany
June2003Inner-bodysidepanel,Focus3-doorhatchbackblanksize1525x3475x0.75mm,hot-dipgalvanizedsheetmetalcoatingweight1.2–1.4g/m²,preparedbyelectrostaticspraying(ThyssenKruppStahlNeuwied,sprayequipmentFaraTechnology)500partssuccessfullyproducedandassembledDryFilmLubricantIloformPN950DF
CaseStudies3/1FordStampingPlant-Saarlou
DryFilmLubricantIloformPN950DF
CaseStudies3/2-Picture
DryFilmLubricantIloformPNMetalsheetsdry-to-the-touchNoparticlecontaminationNoproblemsinthede-stackingprocessOnlyslightmodificationoftheclampforcewasnecessaryinthebeginningMaintrial550o.K.partsUsageofthepartswithoutproblemsDryFilmLubricantIloformPN950DF
CaseStudies3/3Metalsheetsdry-to-the-touchDAUDIStampingPlant-Ingolstadt,GermanyJune2003Inner-doorpanel,A4Blanksizeappr.1525x1735x0.75mm,hot-dipgalvanizedsheetmetalCoatingweight1.2–1.4g/m²,preparedbyelectrostaticSpraying(ThyssenKruppStahlNeuwied,sprayequipmentFaraTechnology)30partssuccessfullyproducedandpassedthrougttheadditionalprocesses(cleaning,phosphatingandpaintingo.K.)DryFilmLubricantIloformPN950DF
CaseStudies4/1AUDIStampingPlant-Ingolsta„MetallwerkHofmaninger,Austria“Pretrial:PressingofaconcetemixerpartDryFilmLubricantIloformP
温馨提示
- 1. 本站所有资源如无特殊说明,都需要本地电脑安装OFFICE2007和PDF阅读器。图纸软件为CAD,CAXA,PROE,UG,SolidWorks等.压缩文件请下载最新的WinRAR软件解压。
- 2. 本站的文档不包含任何第三方提供的附件图纸等,如果需要附件,请联系上传者。文件的所有权益归上传用户所有。
- 3. 本站RAR压缩包中若带图纸,网页内容里面会有图纸预览,若没有图纸预览就没有图纸。
- 4. 未经权益所有人同意不得将文件中的内容挪作商业或盈利用途。
- 5. 人人文库网仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对用户上传分享的文档内容本身不做任何修改或编辑,并不能对任何下载内容负责。
- 6. 下载文件中如有侵权或不适当内容,请与我们联系,我们立即纠正。
- 7. 本站不保证下载资源的准确性、安全性和完整性, 同时也不承担用户因使用这些下载资源对自己和他人造成任何形式的伤害或损失。
最新文档
- 福州2025年福建福州市中医院招聘9人笔试历年参考题库附带答案详解
- 2020年四级人力资源管理师考试《理论知识》真题及解析汇编
- 高级安保服务协议书(2篇)
- 三年级英语下册-U6 课件 Unit 6Phonics
- 2025年关于小班体育标准教案
- 影像学对感染病的早期发现与处理
- 2025年环境影响评价工程师考试真题汇编(环境影响评价案例分析解析)
- 2025年征信考试题库:征信行业发展趋势与信用风险管理实践案例研究方法试题
- 2025年危险化学品安全生产培训教材试题库
- 2025年成人高考《语文》逻辑思维训练题库及解析
- 2025年通信安全员ABC证新版试题(附答案)
- 2025高考数学一轮复习-第10章-第8节 二项分布、超几何分布与正态分布【课件】
- 2025年中国模数转换器(ADC)行业市场前瞻与投资战略规划分析报告
- 光肩星天牛防治技术规程 DB23-T 2625-2020 黑龙江
- 进化医疗-跨物种肿瘤基因治疗的开拓者
- 法理学复习题+答案
- 信息化系统平台试运行方案
- 统编版(2024新版)七年级下册道德与法治期末复习背诵知识点提纲
- 《认知理论》课件
- 2024年度宁夏回族自治区国家电网招聘之环化材料类题库检测试卷B卷附答案
- 《冠心病护理》课件
评论
0/150
提交评论