切削液基础知识培训教材

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1、切削液（CuttingFluids)游煌煌主要内容切削液的作用机理切削液的添加剂切削液的分类与选用切削液的使用方法8/11/20212CuttingFluidsIntroduceThemediuminwhichthecuttingprocesstakesplaceiscalledthecuttingfluid,itmayconsistofliquidorgas.However,solidsmayalsobeintroducedintothisfluidandtheyinfluencethecuttingprocessintheirownway.8

2、/11/20213CuttingFluidsThereasonsuseofcuttingfluidsImprovingtoollife;Reducingworkpiecethermaldeformation;Improvingsurfacefinish;Flushingawaychipsfromthecuttingzone.8/11/20214CuttingFluidsCuttingfluidscategoriesPracticallyallcuttingfluidspresentlyinusefallintooneoffourcategorie

3、s:StraightoilsSolubleoilsSemisyntheticfluidsSyntheticfluids8/11/20215CuttingFluidsStraightoilsStraightoilsarenon-emulsifiableandareusedinmachiningoperationsinanundiluted(未稀释)form.Theyarecomposedofabasemineralorpetroleumoilandoftencontainspolarlubricantssuchasfats,vegetableoil

4、sandestersaswellasextremepressureadditivessuchasChlorine,SulphurandPhosphorus.Straightoilsprovidethebestlubricationandthepoorestcoolingcharacteristicsamongcuttingfluids.8/11/20216CuttingFluidsSyntheticFluidsSyntheticFluidscontainnopetroleumormineraloilbaseandinsteadareformula

5、tedfromalkaline(碱性的)inorganicandorganiccompoundsalongwithadditivesforcorrosioninhibition.Theyaregenerallyusedinadilutedform(usualcontentration=3to10%).Syntheticfluidsoftenprovidethebestcoolingperformanceamongallcuttingfluids.8/11/20217CuttingFluidsSolubleOilFluidsSolubleOilFl

6、uidsformanemulsionwhenmixedwithwater.Theconcentrateconsistsofabasemineraloilandemulsifierstohelpproduceastableemulsion.Theyareusedinadilutedform(usualconcentration=3to10%)andprovidegoodlubricationandheattransferperformance.Theyarewidelyusedinindustryandaretheleastexpensiveamo

7、ngallcuttingfluids.8/11/20218CuttingFluidsSemi-syntheticfluidsSemi-syntheticfluidsareessentiallycombinationofsyntheticandsolubleoilfluidsandhavecharacteristicscommontobothtypes.Thecostandheattransferperformanceofsemi-syntheticfluidsliebetweenthoseofsyntheticandsolubleoilfluid

8、s.8/11/20219CuttingFluids8/11/202110CuttingFluids切削液的作用机理基本作用要求冷却作用润