合金熔體在多通道分離器中電磁分離的實驗研究.pdf

1、蘭州理工大學(xué)碩士學(xué)位論文合金熔體在多通道分離器中電磁分離的實驗研究姓名：余榮華申請學(xué)位級別：碩士專業(yè)：材料學(xué)指導(dǎo)教師：許廣濟(jì)丁雨田20070501合金熔體在多通道分離器中電磁分離的實驗研究AbstractTheelectromagneticseparationofSiphasefrom(AlSi)alloymeltbeeninvertical，inclineandhorizontalstateswereinvestigatedexper

2、imentallyinhighfrequencyelectromagneticfieldThemajorresearchsubstanceswerethat：Theeffectofthevariousprocessingparametersincludingcompositionoftheahoypiperadiusofseparatordensityofmagneticfield，actiontimeofelectromagnetic

3、ficld，inclinationofmeltsample，applyingseparatorofsin#epipeandbunchedpipes，meltbeeninstaticstateandflowingstateetal，ontheseparationefficiencywasexperimentallyinvestigatedinhighfrequencyelectromagneticfieldInadditionthemig

4、rationtrendofamagneticprecipitationphases(A13Fe)in(AI一18％Si)meltwasexperimentallyinvestigatedinlowfrequencyandhighfrequencyelectromagneticfieldTheresearchTesllltsareasfollows：1Undertheconditionoftherationbetweentheradius

5、ofseparator0)andtheshindepth(03a／d=2—3，theoptimizingmatchingbetweenthepowerofelectricSOIlfOeandactiontimeofelectromagneticfieldnotonlycouldCaUSetoobtainthebettermatchingbetweentheelectromagneticpressureandinducingheat，bu

6、talsocouldeliminatetheunfavourableactionofthesecondturbulentflowandwillcontributetoenhancetheseparationefficiency2Whena／6一二v3，theapplyingtheseparatorofabunchedpipesnomatterwhatmeltwasinverticalorinclineorhorizontalstate，

7、nomatterwhatWasinstaticorflowingstate，couldachievegoodseparationefficiencyundertheconditionoftheoptimizationmatchingbetweentheelectromagneticprocessingparameters，andthentheproblemofrestraineachotherbetweenseparationeffic

8、iencyandtreadingquantityofmeltandprovidebasisforthepracticalapplicationofthehighfrequencyelectromagneticseparation3Inhighfrequencyelectromagneticfieldtheprimarymagneticprecipitationphases(A13Fe)wereemceedthetrendofmigrat

9、ingtotheborderofmeltsampleandthenonmagneticoxidationparticleswereemergedthetrendofmigratingtotheinteriorofmeltsampleinlowfrequencyelectromagneticfieldSoapplyingtheelectromagneticseparationwiththehighfrequencyelectromagne

10、ticfieldnotonlythenonmagneticprecipitationphasebutalsothemagneticprecipitationinmeltallcouldbemigratedtotheborderofmeltsample，andthenmakethemeltobtainpurifying4Basedonthebasisprincipleofthehi曲frequencyelectromagneticsepa