(R)合理选择二次精炼技术_推进高效率低成本_洁净钢平台_建设

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1、2010年4月炼钢Apr.2010第26卷第2期SteelmakingVol.26No.2·1·合理选择二次精炼技术,推进高效率低成本“洁净钢平台”建设殷瑞钰(钢铁研究总院,北京100081)摘要:世界金融危机使国内外钢铁工业受到严峻的挑战。中国钢铁工业调整和振兴的重点之一是以科技进步调整、优化产品和工艺。加快推进高效率、低成本“洁净钢平台”建设已成为当前钢铁厂科技创新重要的任务之一。中国炉外精炼技术的发展经历了起步、推广和优化3个重要阶段,已有了明确的指导思想,达到一定规模和水平、积累了经验和掌握了许多关键技术;但精炼比低、合理选择和应用精炼功能等方面尚待改进。研究总结长材、热卷、

2、中厚板、冷轧材等代表钢种炉外精炼高效、优化的工艺,可为各企业提供参考经验。深化对不同类型炉外精炼功能的理解并合理选择,有利于使不同类型产品的基本精炼工艺规范化,有利于加快我国高效率、低成本“洁净钢平台”的建设步伐。关键词:选择;炉外精炼;推进“;洁净钢平台”建设中图分类号:TF769文献标识码:A文章编号:100221043(2010)0220001209Selectingsecondaryrefiningtechnologyproperlyandpushingforwardconstructionofhighefficientandlowcost"cleansteelplatfor

3、m"YINRui2yu(CentralIron&SteelResearchInstitute,Beijing100081,China)Abstract:Theironandsteelindustryathomeandabroadisnowfacingaveryseriouschallengeoftheworldwidefinancialcrisistoday.OneofthekeypointsforreadjustmentandrejuvenationoftheironandsteelindustryofChinaistoadjustandoptimizetheproductsand

4、processesbymeansofscientificandtechnologicalprogressandinthemeanwhileacceleratedlypushingforwardtheconstructionofthehighefficientandlowcost"cleansteelplatform"hasbecomeoneofthecurrentscientificandtechnologicalin2novativetasksoftheironandsteelworks.Thedevelopmentofsecondaryrefiningtech2nologyinC

5、hinahasalreadygonethroughthreeimportantphases,namelyinitialstep,popularizationandoptimizationanduptodatewithaveryclearcutguidingprincipleithasgrownuptoacertainlevelandscaleandhasaccumulatedexperienceandtakenholdofquiteanumberofkeytechnologies.Howevercertainproblemssuchaslowrefiningrati2o,incomp

6、etencyofproperlyselectionandapplicationoftherefiningfunctionsstillneedtobefurtherimproved.Thehighefficientandoptimaltechnologicalprocessesofthesec2ondaryrefiningforsuchafewtypicalsteelgradesasthelongproducts,hotrolledcoils,mediumplateandcoldrolledsheetshavetobestudiedandsummarizedinordertopro2v

7、idesomereferentialexperienceforenterprisesofthevariouskind.Deepeningourun2derstandingofthefunctionsofdifferenttypesofthesecondaryrefiningandproperlyse2lectingthemwillbepropitioustothestandardizationofthebasicsecondaryrefiningproce