CoalMineMachineryVol.31No.09Sep.20103109201009,。420,,准25-0.009Ra0.1,40.04,。,2,。(1),;(2)W10~W20,,、。。,,、。,,,,。:[1].[K].:,2005.[2].[M].:,2005.[3].:、[K].:,2006.[4],,.[M].:,2000.:(1951-),,,,,18,4,3,2,:0451-89665280,0451-86414652,:ddj2007@yahoo.cn.::2010-04-130 0,,2,,。,,,。1(1)LD32。:→→→→→。(2)1,2,,。:→(,)→()→。,,1,2,1,1(1.,300222;2.,300400):,,。,,,,。:;;:U483;TG76:B:1003-0794(2010)09-0109-03ColdExtrusionProcessforThrottleValvesManufacturingandDesignofExtrusionDieLIUPing1,WUMing2,WANGHong-jun1,FENGNa1(1.SupportedbyTianjinKeyLaboratoryofHighSpeedCuttingandPrecisionMachining,TianjinUniversityofTechnologyandEducation,Tianjin300222,China;2.TianjinKeysensePrecisionMachineryCo.,Ltd.,Tianjin300400,China)Abstract:Coldextrusionprocessofvalvethrottlewereanalysedbasedoncomponents’structure,shapeandaccuracyrequirements.Selectionofdesignparametersandothermajortechnicalissuesofdiedesignwerediscussed.Coldextrusionprocessusedonvalvethrottlemanufacturingreducedrawmaterialusage,cutdownmachiningtime,andinthemeantime,improvedmechanicalpropertiesofvalvethrottle’scomponents.Coldextrusionisafeasiblemethodforvalvethrottlemanufacturing.Keywords:valvethrottle;coldextrusion;compounddie109,。12(1)LD32。21.5mm、准20.1mm。(2),,,,,。3:、。。75%~82%。ψ=(F0-F1)/F0=(d1/D)2=(16/20.3)2=62%F0———;F1———;d1———;D———。。(3),,。p=Znσbσb———,MPa;Z———;n———。P=pF=308kNF———。3(1)2。(2),。,,。,,,,。21.2.3.4.5.6.7.8.9.10.11.12.13.14.15.16.17.18.19.20.,、:Da=(D-Δ)0=(20.3-0.1)0=20.20Δ———,mm;δ———、,mm。dt=(D-Δ-2t)0=(20.3-0.1-4.3)0=15.90t———,mm。2t=20.3-16=4.3dtx=(D-Δ-2tx)0=(20.3-0.1-3.5)0=16.702tx=20.3-16.8=3.5(3),,,,,,。,、,2。,。,、。,,,。,,。,。:,,、,CoalMineMachineryVol.31No.09Sep.201031092010093109Vol.31No.09———,+δ+0.04-0.04-δ-0.04-0.04-0.04-0.04-δ20.33817616.8123456789101112131415161716192018110CoalMineMachineryVol.31No.09Sep.201031092010093109Vol.31No.09———,1ZYW4,,3(1)。11.2.3.C4.5.,(GB/T120.2-2000),准16+0.018。:100mm,32mm,0.05mm,准16+0.018,Ra1.6(2),45,HBS240~280。2准16+0.043。2,。3。31.2.3.4.5.6.4,,,,。、,,、、,。:[1].[M].:,2004.[2],.[M].:,2004.[3],,,.[J].,2003(5):43-46.[4],.[J].,2008,29(4):90-91.:(1959-),,,,,:,:022-88181091,:ping_liu@eyou.com.::2010-01-05!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!,,(,400037):,,,。,。ZYW。:;;;--:TG801;TG713:B:1003-0794(2010)09-0111-02HighPrecisionPinHolesofInterchangeabilityGuaranteeWUBo,WANGWei,CHULi-hu(ChongqingBranchofChinaCoalResearchInstitute,Chongqing400037,China)Abstract:Inmachine,tofollowtheprincipleofinterchangeability,itcannotonlysignificantlyincreasedlaborproductivity,butalsoeffectivelyguaranteeproductqualityandreducecosts.ThepositionaccuracyoftheZYWseriesrigpinholeandtheprocessingmethodsandtestingmeasurestoensureaccuracyweredescribed.Keywords:pinhole;positionaccuracy;interchangeability;drill-boring-hingeprocessing+0.007012345601.645°324-准16H7(+0.018)0准1002-准80.05A-B12345AB111