耐火材料與脫氧合金和脫氧產(chǎn)物間反應(yīng)的研究

1、東北大學(xué)碩士學(xué)位論文耐火材料與脫氧合金和脫氧產(chǎn)物間反應(yīng)的研究姓名：朱強(qiáng)申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：鋼鐵冶金指導(dǎo)教師：于景坤20050101東北大學(xué)碩士學(xué)位論文ABSTRACTStudyonthereactionbetweenrefractoriesanddeoxidizingagentanddeoxidizingproductABSTRACTCleansteelproducingwillbethemaindevelopmenttendenc

2、yinthe21thcenturywiththecontinuousdevelopmentandadvancedtechnologyinthemetallurgicalindustryTherelationshipbetweentherefractoriesandthecleanlinessofmoltensteelisbeingpaidmoreandmoreattentionBasedonthephaseequilibriumandt

3、hermodynamictheorythemechanismofoxygentransferringfromrefractoriestomoltensteelanditsaffectedfactorswerestudiedinthisstudyThedisciplinarianofrefractorieseffectingonthepurlfyingofdeoxidizingproductinmoltensteelwasalsostud

4、iedTheconclusionsareasfollows：(1)Themaincauseofoxygentransferringfromrefractoriestomoltensteelisthattheequilibriumpartialpressureof02(曲decomposedbyoxidecompositioninsidetheclosedporeinrefractoriesismuchhigherthanthatthee

5、quilibriumpartialpressureof02(g)inmoltensteel但)Whensomeoxideimpurities，suchasNa20，K20andFeO，existinclosedporeinrefractories，theequilibriumpartialpressureof02(g)willincreasegreatly(3)According的thevarietiesoftherefractorya

6、ndthedifferenceofthecompositioningredientsproportion，theabilityofoxygentransferringisdifferent(4)Theabilityofoxygentransferringofrefractoryisalsoindirectlyaffectedbythevarietiesofdeoxidizingagentsandtheiradditionamountsw

7、hichareputinmoltensteel(5)Theexperimentalresultshowsthatthedeoxidizingproductdiffusingontothesurfaceofrefractoryincreaseswithextendingtheheatpreservationtime(6)Thepropertyofrefractorieshasanimportantinfluenceonthepurifyi

8、ngofdeoxidizingproductbutCall_notinfluenceitsmotioninmoltensteel(7)SomecomponentsofrefractoriesaretheoneofsotlrcewkichcontaminatesmoltensteelKeywordsrefractorymoltensteel，oxygentransfcr，deoxidizingagent，deoxidizingproduc