浸入式水口用MgO-CaO-ZrO-,2-質(zhì)材料的組成與性能研究.pdf

1、西安建筑科技大學碩士學位論文浸入式水口用MgOCaOZrO質(zhì)材料的組成與性能研究姓名：段鋒申請學位級別：碩士專業(yè)：材料學指導教師：蔣明學平增福20030601墮窒堡篁型墊盔堂!銎塑墮苧—————————————————一ThestudyOilthecompositionandthepropertyofMgO—CaO—Zr02submergedentrynozzleSpecidity：materialscienceName：DuanFen

2、gIntructor：JiangMingxnePingZengfuLiTingshouAbstractInthisthesis，thecompositionandthepropertyofBasicmaterialMgO—CaO—Zr02bothincludingcarbonandfree—carbonhasbeenstudiedThoughtheselectionofrawmaterial，blending、mixing、formin

3、g、heattreatmentorhightemperaturefining，anderosiontestbyimmersionbarandstaticcruciblemethodthoughsteelandscoriaerosion、analysethestructurebySEMandEDAXinamicroscopicway、measurethecompressivestrengh、bendstrength、volumedensi

4、tyandtheporosityTheexperimentindicatesthattheinductingofZr02toMgOCaOZr02materialplayscertainroleinphysicalproperty；thematerialshouldnotbetreatedinhightemperatureof1000“C，butratheronlyinlowtemperatureIntheerosiontest，adec

5、arburizationlayerisformedonthesurfacebetweenmaterialandsteelThestructureofthisareaisloosewhichprovidesapathforsteelerosionandpenetrationTheCaZr03formedinhightemperaturedistributeinagglomerationinthecrystals，fillsinthepat

6、hafterthegraphite’Soxidation，andresiststheerosionofscoriaeffectivelyTheprincipleofantialuminabuildupisthat，thelowmeltingmaterialreactedbyCaOandA1203，Si02inthescoriaformsaglassphraseonthesurfaceoftestcoupon，whichmadeA1203

7、hardtobuildupAndalsotheMgOCaO—Zr02materialfreecarbon，with15％Zr02firedin1630。C，directbondingofCaZr03formedinhightemperaturefiningandpericlasehastheexcellenterosionresistance，whosepropertyissimilartothatin1600℃Witllt11einc

8、reaseofZr02inthesametemperaturetheerosionresistanceofmaterialdecreasesWhenthematedaliSreactedwithscoria，themainprocessistheerosionofscoriaandthereactionofmaterialwiththeFe，A1，CapenetratedTheC4AFCAlowmeltingmaterialsprodu