过程装备制造与检测试题Word下载.docx
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过程装备制造与检测试题Word下载.docx
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A,B,CandD.P66
2.thebasicformsofweldedjointsarebuttjoint,Tshaped(cruciform)joint,cornerjointandlapjoint.P67
3.thebuttjointisanidealformofweldedjointincomparisonwiththestressstateofweldedjointandtheweldingprocessperformance.Thepressurevesselismainlypressedpartsandpressurebearingshells
Themainweldshallbefullyweldedbuttjoint.P68
4.themicrostructureandpropertiesofweldedjointsaredeterminedbytheweldzoneandtheheataffectedzone.Theweakerpartoftheweldedjointisintheheataffectedzone,whiletheoverheatedzoneintheheataffectedzoneistheweldedjoint
Theweakestpartofthearea.P72,75
5.thebasicformsofweldinggrooveareI,V,Y,x,Uandsoon.Themainpurposeofdesignorselectionofdifferentgrooveistoensurethattheweldedjointsarefullywelded.P79
6.intheprocessofequipmentmanufacturing,thecommonlyusedweldingmethodsaremanualarcwelding,submergedarcwelding,gasshieldedarcwelding,electroslagwelding,surfacingwelding,narrowgapwelding,etc..P79
7.,therearethreekindsofdomesticarcweldingequipment:
arcweldingtransformer(alternatingcurrentweldingmachine),arcweldinggenerator(DCweldingmachine)andarcweldingrectifier(DCpowersupply).P79
The8.electrodebythecoreandthecoatingiscomposedoftwoparts,chemicalcompositionwilldirectlyaffectthequalityoftheweldingelectrode.
9.theweldingwireisclassifiedintosolidcoredwire,fluxcoredwireandactiveweldingwireaccordingtoitsshapeandstructure,amongwhichthesolidcoredwireusedforsubmergedarcweldingisthemostwidelyused.P98
10.electroslagweldingweldingprocesscanbedividedintothreestages:
arcestablishmentphase,normalphaseandphaseleadwelding.Itsmainfeatureissuitableforweldingthickparts.P119
11.suitableforthickwallpressurevesselweldingmethodforelectroslagwelding,automaticsubmergedarcwelding,narrowgapwelding.P123
12.theweldabilityofmetalmaterialscanbedividedintoprocessweldabilityandweldability.P124
13.carbonsteelaccordingtocarboncontentcanbedividedintolowcarbonsteel,mediumcarbonsteel,highcarbonsteel,ofwhichlowcarbonsteelisthemosteasilyweldedsteel,canbeusedinallweldingmethodswelding,highcarbonsteelweldingthemost
Poor.P133
14.16Mnisalowalloysteelcommonlyusedinweldedstructures,16MnRisapressurevesselsteel,and16Mngisaboilersteel.P135
15.0Cr18Ni9Tibelongstoausteniticstainlesssteel.Themostcommonproblemsintheactualweldingofthiskindofsteelareintergranularcorrosionandhotcracking.P143
16.theaimofthepostweldingheattreatmentistorelaxtheweldingresidualstress,tostabilizetheshapeandsizeofthestructure,andtoimprovethepropertiesofthebasemetal,weldedjointandstructuralparts.P149
17.,afterweldingheattreatmentmethodhasthefurnaceoverallheattreatment,furnacesubsectionheatingtreatment,outsidethefurnaceheatingtreatment.P151
18.steelpretreatmentreferstothesteelplate,tubeandshapedsteelmaterialssuchaspurification,correctionandcoatingprotectiveprimer.P155
19.modernprofessionalproduction,materialspurificationmethodsaresandblasting,throwingninemethodsandchemicalcleaningmethod.P156
20.commonlyusedequipmentpurificationmethodsaremechanicalcleaningandchemicalcleaning.P159
21.thecorrectivemethodsofsteelaremechanicalcorrectionandflamecorrection.P161
22.mechanicalrectificationmainlyusescoldstraightening.Whenthedeformationislargeandtheequipmentcapacityisinsufficient,thehotstraighteningcanbeused.P161
23.themarkingprocessusuallyinvolvesthecalculation,loftingandmarkingofparts.P164
24.,todeterminethesizeoftheexpansionoftheessenceofthematerialisrealisticlong,commonlyusedmethodsofmapping,calculation,testing,synthesis.P164
25.ontheproject,theprocessofdrawingthepartsonthesheetiscalledlofting.Inthisprocess,wepayattentiontotwoaspects:
considertheprocessingallowanceofeachprocesscomprehensively,andconsiderthetechniqueofmarking
O.P167
26.theprocessingallowanceconsideredintheprocessequipmentlineincludesthebarrelvolume,theelongation,theedgeprocessingallowance,theweldingseamdistortionandsoon.P167
27.inthedesignofwelds,theoverallandlocalconsiderationshouldbetakenasfaraspossibletoreducethenumberofweldsandshortenthelengthofwelds,andtodesigntheweldsinamorereasonableposition.
P170
28.headbyflapformingandtopplatesplicedintothewelddirection,allowingonlyradialandcircumferential.
29.theminimumlengthofthebarrelshallnotbelessthan300mm.Theadjacentsimplifiedlongitudinalweldsshallbestaggeredwitheachother,andthearclengthbetweenthetwoweldcentersshallnotbelessthan100mm.P171
30.intheprocessofequipmentmanufacturing,theformingprocessofthepressureshellmainlyincludesthebarrelbending,thestampingofthehead,thespinningprocess,thebendingofthetube,etc..P173
The31.sectionofthetubebendingformingisbentintheactualproductionandcylinderforminginrollingmachineusingsteelplatebendingrollsbasicallycanbedividedintocoldandhotrolledcoil.P173
32.coldrollformingisusuallyatroomtemperaturebendingforming;
formingrollformingcoilisabovetherecrystallizationtemperatureofthebend.P173,174
33.formingmethodsofheadincludestampingforming,spinningformingandexplosiveforming.P183
34.thestampingformingoftheheadcanbeusedforthematerialwithgoodplasticityatnormaltemperature.Hotstampingcanbeusedforthematerialwithbetterplasticity.P183
35.wrinkleisacommondefectinthestampinghead.Theblankholdercanbeusedtopreventwrinkles.P187
36.formingmethodsofthin-walledheadincludestampingmethod,gappressingmethod,deepdrawingmethodwithbarandreversedrawingmethod.P191
Thespinningformingof37.headcanbedividedintothemodespinningmethod,thedielessspinningmethodandthepunchingandrotatingcombinedmethodaccordingtotheuseofthedie.P196
Themainmethodofcontrollingthebendingdeformationrateofthepipein38.bendsistocontrolthebendingradiusofthepipe.P201
39.pipe,ifthepipematerialforlowcarbonsteel,lowalloysteel,canbecoldorhotbending;
tubeinmaterialforhighalloysteelsshouldchoosehotbending.P203
40.steeltubeshellheatexchangertubeandtubeplateconnectionsareexpansion,weldingandexpansionweldingconnection.P217
41.commonmultilayerstructurehighpressurevesselhashotsleevetype,flatsteelstrip,inclinedanglewindingtype,andlayerwrappingtype.P219
42.,theprocessofmachiningisoftendividedintoseveralprocesses,andtheprocesscanbedividedintostation,stepandknife.P224
43.,theproductiontypeistheclassificationofenterpriseproductionspecialization.Itisgenerallydividedintosingleproduction,massproductionandmassproductionofthreetypes.P226
44.commonlyusedroughpartsinmechanicalmanufacturingarecastings,forgings,profilesandweldments.P235
45.benchmarkaccordingtoitsfunctioncanbedividedintodifferentdesignstandardsandprocessstandardstwocategories,theformerusedintheproductpartsofthedesign,thelatterusedintheprocessofmechanicalmanufacturing.P237
46.processstandardscanbedividedintoprocessstandards,positioningstandards,measurementstandardsandassemblystandardsfordifferentpurposes.P237
47.thepositioningreferenceisnotonlytheactualsurfaceoftheworkpiece,butalsothegeometriccenter,symmetricallineorsymmetrysurfaceoftheworkpiece,butitmustbereflectedbythecorrespondingactualsurface.Thepositioningreferenceisclassifiedascrudereference
Precisedatum.P238
48.,thepositioningoftheworkpiececanbedividedintocompletepositioning,incompletepositioning,underpositioningandoverpositioning,inwhichthelackofpositioningisnotallowed.P244
49.theclampingforceoftheworkpieceincludesthreefactors,size,directionandactionpoint,andtheirdeterminationisthefirstproblemtobesolvedinthedesignoftheclampingmechanism.P249
50.,drawuppartsmachiningprocessline,mainlyincludingthechoiceofeachsurfaceprocessingmethod,arrangeeachsurfaceprocessingorder,determinetheprocessconcentrationanddispersiondegree,reasonableselectionofmachinetools
Cuttingtools,etc..P251
Theprocessingprocessof51.partscanbedividedintofourstages:
roughing,semifinishing,finishingandfinishing.P255
52.partsofthesurfaceofthemachineprocessingorderforthefirstbenchmark,otherfirst,afterthefirst,thefirstface,afterthehole.P256
53.themainpurposeofheattreatmentofworkpiecematerialistoimprovethemachinabilityofmetal,eliminateresidualstressandimprovemechanicalpropertiesofmaterials.P256
54.theheattreatmentprocessofworkpiecematerialincludespreparatoryheattreatment,improvementofmechanicalproperties,heattreatment,stabilityandheattreatment.P256
55.thepreparatorymethodsofheattreatmentforworkpiecematerialsareannealing,normalizingandartificialaging.P256
Fifty-six
Theimprovementofmechanicalpropertiesofworkpiecematerials,heattreatmentaregenerallyquenchedandtempered,carburizing,quenching,tempering,cyanide,nitridingand
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