退火工藝和成分對冷軋無取向電工鋼性能的影響

退火工藝和成分對冷軋無取向電工鋼性能的影響EffectsofAnnealingProcessandChemicalcompositiononthePropertiesofColdRolledNon-OrientedElectricalSteel河北鋼鐵集團邯鋼公司HanDanIron&SteelCo.,LtdofHeBeiIron&SteelGroup

主要內(nèi)容：Maincontent:論文的研究內(nèi)容Studycontentofthepaper概述Summary1234實驗成分及方法

Chemicalcompositionandmethod33536實驗結(jié)果及組織檢測Resultandstructure63分析討論Discuss

andanalysis結(jié)論Conclusion電工鋼是一種重要的金屬功能材料,是電力〔發(fā)電和輸變電〕、電機、家電和電子工業(yè)不可缺少的軟磁合金；主要用于各種電動機、發(fā)電機和變壓器鐵芯及其他電器部件，在磁性材料領域中產(chǎn)量和用量最大。概述—定義

Summary—DefinitionElectricalsteelisanimportantmetallicfunctional

materials,itisanindispensabilitysoftmagneticalloyinelectricpower,motor,householdappliancesandelectronindustry;It’susedmainlyforallkindsofmotors,transformers,andotherpartsofelectricalcomponents,it’sthelargestmountofproductionandconsumptioninthefieldofmagneticmaterials.疊片laminated沖片stamped組裝assembled成品Finished概述—用途

Summary—use鐵芯損耗低Lowironloss磁感應強度高Highmagneticinductionintensity磁各向異性小Smallmagneticanisotropy沖片性良好Goodforstamping鋼板外表光滑、平整和厚度均勻Steelplatesurfacesmooth,smoothanduniformthickness絕緣薄膜性能好Goodperformanceofinsulationfilm磁時效現(xiàn)象小Lowmagneticagingphenomenon電工鋼產(chǎn)品性能要求Performancerequirements隨著鋼鐵冶金技術(shù)的進步，無取向電工鋼的性能指標也不斷提高。同時在當前日益劇烈的市場競爭條件下，鋼鐵企業(yè)對節(jié)約資源、降低本錢、提高產(chǎn)品質(zhì)量等意識的增強，因此在成分一定的條件下，如何最大程度的提高無取向電工鋼成品性能也成為企業(yè)和科研工作者研究的重點。Alongwiththeironandsteelmetallurgytechnologyprogress,non-orientedelectricalsteelperformanceindexisalsoincreased.Underthefiercecompetitionmarketconditions,steelcompanyconsciousness-raisinginsaveresources,reducecosts,improveproductquality.Howtoimprovethepropertyunderthegivencompositionisakeystoneforcompanyandscientificresearcher.概述—主要性能指標

Summary—Mainperformanceindex概述—電工鋼性能影響因素

Summary—Thefactorinfluence

論文的研究內(nèi)容

Thecontentofthispaper退火工藝對無取向電工鋼性能的影響Effectsofannealingprocessthepropertiesofcoldrollednon-orientedelectricalSteel退火溫度對無取向電工鋼性能的影響Effectsofannealingtemperatureontheironlossofnon-orientedelectricalsteel退火時間對無取向電工鋼性能的影響Effectsofannealingtimeontheironlossofnon-orientedelectricalsteel成分對無取向電工鋼性能的影響Effectsofchemicalcompositiononthepropertiesofcoldrollednon-orientedelectricalSteel硅含量對無取向電工鋼鐵損的影響EffectsofSiliconontheironlossofnon-orientedelectricalsteel硅含量對無取向電工鋼磁感的影響EffectsofSilicononthemagneticofnon-orientedelectricalsteel

實驗成分及方法

Chemicalcompositionandmethod試樣成分：Chemicalcomposition:表實驗用鋼的化學成分表〔wt.%〕Table1Chemicalcompositionoftheteststeel〔%〕成分CSiMnPSAls樣品10.00700.9450.2180.01240.01180.264樣品20.00621.120.320.0130.00740.305

實驗成分及方法

Chemicalcompositionandmethod實驗方法：Experimentalmethod:采用實驗室馬弗爐，模擬無取向電工鋼的退火工藝過程。退火工藝如下:Simulatethenon-orientedelectricalsteelannealingprocessbylaboratorymufflefurnace退火溫度temperature退火時間time退火氣氛atmosphere800℃、850℃、900℃、950℃1000℃、1050℃179s、233s、288s25%H2+75%N2表

試驗方法TableChemicalmethodoftheteststeel

溫度℃時間s樣品1樣品2P15/50(W/Kg)B50(T)P15/50(W/Kg)B50(T)8001797.67651.7627.0311.75152336.71051.77856.5251.7482886.3031.77656.3581.7468501796.3161.7725.55751.73452336.02751.76755.87851.7402885.88151.7795.36851.7369001795.2611.7725.1691.7412335.31451.76654.9261.73352885.33751.77854.13951.72759501794.91951.7653.9281.73752334.7951.7623.9961.73152885.1221.7653.78451.72410001794.6591.75153.9321.72752334.8511.75653.59051.72052884.7431.75053.67451.721510501794.51051.7573.3631.7232334.46251.74653.48651.7262884.10051.7653.6631.7205性

能

檢

測

結(jié)

果

Result硅含量對無取向電工鋼性能的影響Effectsofsiliconcompositionontheironlossofnon-orientedelectricalsteel

試驗結(jié)果分析

ResultandAnalysis相同退火工藝條件下：樣品2〔硅含量高〕的鐵損明顯小于樣品1〔硅含量低〕的鐵損樣品1〔硅含量低〕的磁感明顯高于樣品2〔硅含量高〕的磁感Thesameannealingconditions:Sample2(highsilicon)ironlossissignificantlylowerthanthesample1(lowsilicon).Sample1(lowsilicon)magneticinductionwassignificantlyhigherthansample2(highsilicon).

試驗結(jié)果分析

ResultandAnalysis

試驗結(jié)果分析

ResultandAnalysis退火工藝對無取向電工鋼性能的影響：Effectsofannealingtemperaturethepropertiesofcoldrollednon-orientedelectricalSteel對樣品1、樣品2而言：隨退火溫度升高，成品的鐵損逐漸降低，低溫段時降低幅度較大，高溫段時，降低幅度較小。隨退火時間增加，最終成品鐵損也呈降低趨勢，但降低效果沒有增加退火溫度效果明顯。Forsample1,sample2:Increasingtheannealingtemperature,theironlossoffinishedproductisreducedgradually,thelowreducerangeinlowtemperaturezone,thehighreducerangeinhightemperature.Increasingtheannealingtime,thefinishedproductironlossisdecreased,butbyimprovingannealingtemperatureisbetterthanprolongingannealingtime.試驗結(jié)果分析

ResultandAnalysis

試驗結(jié)果分析

ResultandAnalysis退火溫度對冷軋無取向電工鋼磁感的影響Effectsofannealingtemperatureontheironlossofnon-orientedelectricalsteel對樣品1、樣品2而言：隨退火溫度升高，最終成品的磁感呈逐步降低趨勢.隨退火時間增加，最終成品的磁感呈逐步降低趨勢，但規(guī)律不明顯。Forsample1,sample2:Increasingtheannealingtemperature,thefinalproductofmagneticinductiongraduallydecreased.Increasingtheannealingtime,themagneticinductionoffinishedproductgraduallydecreased,buttheruleofreduceisnotclear.

試驗結(jié)果分析

ResultandAnalysis

800℃保溫179s900℃保溫179s1000℃保溫179s1050℃保溫179s800℃保溫288s900℃保溫288s1000℃保溫288s1050℃保溫288s組織檢測

Structure不同退火工藝對樣品1顯微組織影響differentannealingprocessonmicrostructureeffects

of

sample1800℃保溫179s900℃保溫179s1000℃保溫179s1050℃保溫179s800℃保溫288s900℃保溫288s1000℃保溫288s1050℃保溫288s組織檢測

Structure不同退火工藝對樣品2顯微組織影響differentannealingprocessonmicrostructureeffects

of

sample2相同退火工藝下，試樣2(硅含量高)的晶粒尺寸較試樣1(硅含量低)的晶粒尺寸大,鐵損也低。隨退火溫度升高試樣的晶粒尺寸增加，鐵損降低。相同溫度下，隨保溫時間增加，晶粒尺寸變化不明顯，但均勻性提高,鐵損降低。Thesizestructureofsample2(highsilicon)isbiggerthansample1(highsilicon)underthesameannealingconditions，andironlossislower.Increasingannealingtemperature,thegrainsizeincreasedandtheironlossreduced.Thegrainsizechangednotclearwithprolongingannealingtime,butitbecamemoreuniformityandironlossreduce.

試驗結(jié)果分析

ResultandAnalysis討論分析

Discuss

andanalysis

1、硅含量越高成品鐵損越低Thehighersiliconthelowerironloss電工鋼的鐵損〔PT〕主要包括磁滯損耗〔Ph〕、渦流損耗〔Pe〕和反常損耗〔Pa〕三局部，影響電工鋼鐵損的因素多而且復雜，其中一些影響因素對三種損耗具有完全相反的影響，因此電工鋼的鐵損性能最終是三者的綜合表達。隨硅含量的增加，電阻率明顯增加，渦流損耗降低，成品晶粒尺寸增加，晶界數(shù)量減少，磁滯損耗也降低,因此總的鐵損也降低。Electricalsteelironloss(Pt)includehysteresisloss(Ph),eddycurrentloss(Pe)andabnormalloss(Pa)threeparts,influencefactorsiscomplex,someinfluencefactorshasoppositeeffect,sotheironlossofelectricalsteelisacomprehensivevalueofthethree.Increasesiliconcontent,resistivityincreasedobviously,eddycurrentlossreduced,thegrainsizeincreases,thenumberofgrainboundariesdecreased,hysteresislossalsoreduced,sothetotalironlossalsoreduced.2、退火溫度升高，成品鐵損降低Increasingannealingtemperature,thefinishedproductironlossreduced.討論分析晶粒是影響鐵損的重要因素，因為晶界處的原子排列混亂，存在許多空位和位錯等缺陷，點陣排列和應力狀態(tài)畸變，阻礙磁疇移動。因此退火溫度升高，晶粒尺寸增加，晶界長度減小，磁滯損耗減小，渦流損耗增加。但增加的渦流損耗遠小于磁滯損耗的減少量，因此總的鐵損是降低的。當減少的磁滯損耗與增加的渦流損耗差值最大時，成品的鐵損會到達最小值，而該晶粒尺寸為最正確尺寸。Grainisanimportantfactorinfluenceofironloss,becausetheatomsareconfusionarrangeingrainboundary,therearemanyvacancyanddislocationandotherdefects,dotmatrixarrangementandstressstatedistortion,blockmagneticmove,grainsizeincreased,grainboundarylengthdecrease,thehysteresislossdecreases,eddycurrentlossesincrease.Butincreasedoftheeddycurrentlossisfarlessthanthedecreasedofthehysteresisloss,sothetotalironisdecrease.Theironlossoffinishedproductwillreachtheminimumvaluewhenthedecreasehysteresislossesandincreasetheeddycurrentlossdifferencevalueisthebiggest,thenthegrainsizeisthebestsize.結(jié)論

Conclusion

1、在一定范圍內(nèi)升高退火溫度，晶粒尺寸增加，鐵損降低，繼續(xù)升高退