简介：Thispaperbrieflysummarizedthedevelopmenthistory,productcatalogueandmagneticpropertiesofnonorientedelectricalsteelsheetsatBaosteel,aswellasthedevelopmentandapplicationofhigh-value-addedsteelgrades.Recentadvancesinmanufacturingelectricalsteelsheetswerealsointroduced,includingtechnologiesforcontrollinginclusion,forproducinghigh-gradesteelstripsbyatandemrollingmillandforcontrollingthetransversethicknessdifferenceofsteelsheets,andthedevelopmentofenvironmentallyfriendlycoatings.

简介：Basedonthemanufactureofefficientnon-orientedsiliconsteelgrade,theeffectsoftinandsulphuronmagnetismanditsinteractionwasdiscussed.Theresultsshowedthatforpresentwork,minortincouldimprovemagneticinductionsharplyandhadlittleeffectoncorelosswhenthesulphurcontentbelow10×10-4%.TheprecipitationofAlNcouldbeprohibittedbytin,remarkably.Asthenucleus,tincouldremovalanyinclusionswhichsizewas0.5μmorabove,andhadlittleeffectoninclusionswhichsizewasbelow0.5μmasakeyfactorforcoreloss.Forfinalsample,themagneticinductionwasimprovedthroughthechangeofsteeltexturebytin.Therelationshipbetweenmagneticinductionandtin,sulphurcontentcouldberegressed:B=1.69-4.37S+0.30Sn.Fromtheregressionformulation,magneticinductioncouldbeimprovedfor0.03Twhen0.01%tinwasaddedundertheconditionofrelativelylowsulphurcontent.

简介：Bymeansofthenumericalsimulationmethod,themathematicalmodelofinclusionsmovementinthemoldisestablishedundertheconditionofausteniticandferriticstainlesssteelslabproduction.Accordingtothesimulationresults,themainzonesforinclusionparticlesaccumulationwerefoundandmanyfactorsthataffectedfloating-upprobabilityofinclusionparticleswereidentified.Thesefactorsincludetheinclusionparticlesize,thecastingspeedandtheslabwidth,etc.Itisbelievedthattheinclusionparticlesizeisthekeyoneamongthesefactors.