高频电磁场作用下矩形软接触结晶器内金属液面行为的实验研究

《高频电磁场作用下矩形软接触结晶器内金属液面行为的实验研究》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

1、f42f4PVol.42No.42006@4"411

2、414{ACTAMETALLURGICASINICAApr.2006pp.411{414ysnj?7(-m5.$q20GCDB@HEFA(oTm-)kJ+>qc+Mhvyx110004)<3Sn{Pb{Bi1tr(KK8cK262mm84mmbkiFo}W<`t}4d@o)!6%f(b,/Ht}44Uft}4`b[(kiFo}W`,b,G4/04bHO(6N`&U/,Yvb,OZs&%(D`Q~qt}4:`&%fYtB}

3、CHReu`J`HsCDKK8cK`t}44UfoTiK;fx^#4b!N?^}4F(CReJ`HsCDxRll>/)WF!4H%`9`wo)=!6-Tl1NS)t}4`u#44U-ZW1,t}4$qT&1.H/o`o}Ww&1`aQ1
>{~o"WkiFo}WKlK8#4d@>!vx}TG249.7,TG113.22'*fA'=d}0412;1961(2006)04;0411;04EXPERIMENTALSTUDYONMENISCUSBEHAVIORINRECTANGULARSOFT{CON

4、TACTMOLDUNDERHIGHFREQUENCYELECTROMAGNETICFIELDSWANGEngang,DENGAnyuan,HEJichengKeyLaboratoryofElectromagneticProcessingofMaterialsofMinistryofEducation,NortheasternUniversity,Shenyang110004Correspondent:WANGEngang,professor,Tel:(024)83681739,E-mail:egwang@mail.neu.edu.cnHighTechnicalResearchand

5、DevelopmentProgramofChinaSupportedbyNational(No.2001AA337040)andYoungTalentsFoundationofLiaoningProvince(No.2005221004)Manuscriptreceived2005{06{05,inrevisedform2005{09{09ABSTRACTThebehaviorofmeltmetalmeniscusina262mm84mmrectangularsoft{contactmoldunderhighfrequencyelectromagneticeldswasinve

6、stigatedbyusingSn{Pb{Bialloy.Theexperimentresultsshowthatthemeniscusisinhomogeneousinslits,segments,andatcornersinthewideandnarrowfaces.Themeniscusdistortionislargerinfrontofslitsandatmoldcorners.Withlessslitsnearthemoldcornersandnon{uniformslitsdistributionalongthewideandnarrowfaces,theinhomo

7、geneityofmeniscusdistortioncanbeimproved.Themeniscusheightishigherandthedownwarddepthofthree{phasepointislagerwhilethefreesurfacelevellocateslittleuporinthevicinityofthecenterofcoil,therefore,themeniscuslevelinmoldshouldlocatesbetweenthecoilcenterandthetopofmoldincastingoperationtosaveenergyan

8、dimprovebilletsurfacequality.Withelectricpowerincreasing,themeniscusisenhanced,butwithexcessivepowerthemeniscus uctuationbecomemoretempestuous.Theoptimalpowerisdierenttodierentmoldstructures.KEYWORDScontinuouscasting,soft{contactmold,