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1、附录：英语文献及其英文Thedevelopmentofhigh-speedmillinggrindingmachineindustryThehighspeedinChinawhetstoparestartnotcalculatetoolate,havealreadystarteddevelopinghigh-speedgrindingmachineatthebeginningof70'sinlastcentury,obtainsomepiecemealofachievement.Thegrindingmachineprofessionconvenedwholecountryhighspeedt
2、owhettopareameetingin1974,themeetingdecidedinthewholecountrytograduallyexpandhigh-speedgrindingmachinetocombinetoproducefactorytoassociatedesignhigh-speedgrindingmachinefromthegrindingmachine.In1976,thegrindingmachineprofessionrelevantfactoryhouseisinthetoolmachinefactoryconcentrationofHangzhoucarry
3、onunitedesign,designaquiteafewstyleproduct,amongthemM7132highspeedevenwhetappointedfromoriginalChuanginthestonehousethreetoolmachinefactoryproduction,thelinespeedofthetoolmachineisalsoa60m/s.In1978,originalChuanginthestonehousethirdtoolmachinefactorypressconsociationdesigndiagrampapergavebirthto2set
4、highspeedevenwhet,exhibitonthetoolmachineexpositionofWuhanatthesameyearandgetagoodcharacter,butunfortunatelycannotcarryonsale.Henceforth,thenationalnational-economygetsintotoadjustaperiod,thetoolmachineprofessionissubjectedtoimpact,this2setthehigh-speedgrindingmachinealwaysdon'tcarryonsaleandcausede
5、velopmentandexpansionofhigh-speedgrindingmachinesufferadefeat.Inordertotherebeingnothepowerofmarketingdemands,thehighspeediseventowhetatmorethan10years,stopsastepnotbefore.Thehigh-speedevengrindingdevelopmentcannotgetintountil90'slatelyofthedevelopmentexpect.In1992,GuizhouZunyiChangzhengEighthElectr
6、icalApplianceFactoryforprocessingahighinitialpermeabilitypermalloy(IJ50)material,thismaterialusingconventionalhorizontallinespeedof35m/smilling,precisionandsurfaceroughnessisnotuptothetechnicalrequirements,buttheuseofhigh-speedgrindingworkpiececanmeettherequirementsof.Underthesecircumstances,theunit
7、asksHangmachinetoprovideonethesetthehigh-speedgrindingmachine.Hence,refittedonesethighspeedfortheunitontheMM7132nicetyevengrindingfoundationevenwhet,theemerywheellinespeedattainsa60m/sisabove,useacirc
