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1、MaterialSciences材料科学,2017,7(4),456-462PublishedOnlineJuly2017inHans.http://www.hanspub.org/journal/mshttps://doi.org/10.12677/ms.2017.74060StudyonNon-MetallicInclusionBehaviorinContinuousCastingProcessofElectricalSi-SteelMinYangChinaBaowuSteelGroupCorporationLimi
2、ted,ShanghaithndthReceived:Jun.5,2017;accepted:Jul.2,2017;published:Jul.5,2017AbstractInthispaper,thecontinuouscastingprocessofthenon-orientedelectricalSi-steelfromadomes-ticsteelcompanywastakenasaresearchsubject.Throughsamplingfromtundishandcontinuouscastingslab
3、followedbyoxygenandnitrogenanalysisandbulksampleelectrolysis,thecontentchangeofoxygenandnitrogenandthechangeofcontent,scale,typeandsourceoflarge-sizenon-metallicinclusionswassystematicallystudied.Undertheexperimentconditionsofthispaper,themainconclusionsareasfoll
4、ows.Thecontentofw(T.[O])andw([N])intheheadslabandthemoltensteelofthecorrespondingtundishwassignificantlyhigherthantheoneintheothercast-ingstate.Duringdifferentcastingstates,thecontentof[N]intheslabwaslowerthanthemoltensteelofthecorrespondingtundish.There-oxidatio
5、nbyairinthecontinuouscastingprocesswasserious.Thelarge-sizeinclusionsintheslabwereformedbyslagentrapmentandrefractoryma-terialerosion.Theflowfieldoftundishandcontinuouscastingmoldshouldbefurtheroptimized.KeywordsElectricalSi-Steel,Cleanliness,Large-SizeNon-Metall
6、icInclusion,ContinuousCasting,BulkSampleElectrolysis电工硅钢连铸过程中非金属夹杂物行为研究杨敏中国宝武钢铁集团有限公司，上海收稿日期：2017年6月5日；录用日期：2017年7月2日；发布日期：2017年7月5日文章引用:杨敏.电工硅钢连铸过程中非金属夹杂物行为研究[J].材料科学,2017,7(4):456-462.https://doi.org/10.12677/ms.2017.74060杨敏摘要本文以国内某钢厂电工硅钢为研究对象，通过工业试验及取样分析，研究了不同
7、浇铸阶段电工硅钢中间包钢液和连铸坯中w(T.[O])和w([N])的变化以及大颗粒非金属夹杂物的含量、粒度、类型及来源。在本实验条件下得到以下结论：硅钢头坯中w(T.[O])、w([N])明显高于交接坯、正常坯和尾坯，不同浇铸阶段硅钢连铸坯中的w([N])均高于中间包钢液中的w([N])，连铸过程二次氧化严重；连铸坯中的大颗粒夹杂物主要源于渣金混卷和耐火材料的侵蚀，中间包和结晶器内流场的稳定性控制水平有待于提高。关键词电工硅钢，洁净度，大颗粒非金属夹杂物，连铸，大样电解Copyright©2017byauthorandH
8、ansPublishersInc.ThisworkislicensedundertheCreativeCommonsAttributionInternationalLicense(CCBY).http://creativecommons.org/licenses/by/4.0/OpenAccess1.引言近年来我国钢
