JFE6.5高硅(硅钢极薄带).pdf

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1、JFESuperCore(Electricalsteelsheetsforhigh-frequencyapplication)JFESuperCoreismanufacturedusinganinnovativeprocessthatiscompletelydifferentfromthatforconventionalsiliconsteelsheets.Thesearethehighestgrade,non-orientedmagneticsteelsheetsavailable.ConventionalsiliconsteelsheetshaveaSi

2、(silicon)contentof3.5%orless.IthaslongbeenknownthatthemagneticcharacteristicsofasiliconsteelsheetimproveastheSicontentincreases,peakingat6.5%.However,ithasbeenimpracticaltoproducethinsteelsheetswithaSicontentofover3.5%becausethesteeltendstohardenandbecomebrittle.In1993JFESteelsolve

3、dthisproductionproblemthroughtheadoptionofaprocesscalledtheCVDprocess,andsuccessfullyintroducedthefirst6.5%Sisteelsheets(JNEX-Core)totheworld.Inordertomeetnewdemands,thistechnologyhascontinuedtobedeveloped,leadingtothecommercialproductionofgradienthigh-siliconsteelsheetswithsuperio

4、rhigh-frequencycharacteristics(JNHF-Core).JFESuperCoreProductionProcessHeatingzoneSiliconizingzoneDiffusionzoneCoolingzoneInsulatingcoatingCVD(siliconizing)Process*SiConcentrationdistributioncontroldiffusionprocessSiUniformdiffusionprocessJNHF-CoreSiGradienthigh-siliconsteelsheetwi

5、thlowsiliconcontentatthecenterportionand6.5%siliconnearJNEX-Coretheoutersurfaceareas6.5%siliconsteelsheet.(Ahigh-siliconsteelsheetwithauniformsiliconcontentof6.5%throughoutthesheet)*CVDChemicalVaporDepositionJNEX-CoreJNEX-CoreJNEX-Coreisthehighest-gradenon-orientedmagneticsteelshee

6、tsmanufacturedwithaproductionmethod(CVDprocess)thatiscompletelydifferentfromthatforconventionalsiliconsteelsheets,allowingapreviouslyimpossibleSicontentof6.5%.LowCoreLossLowCoreLossLowMagnetostrictionCorelossinhigh-frequencyrangesisextremelyMagnetostrictionwhichcausesnoiseandlow.Th

7、isallowsforlowheatgenerationandsizevibrationisnearlyzero.Thisenablessignificantreductionsformagneticcomponentssuchasnoisereductionsformagneticcomponentssuchhigh-frequencyreactorsandtransformers.asreactorsandtransformers.HighPermeabilityHighPermeabilityThepermeabilityisextremelyhigh

8、acrossawiderangeoffrequenc