鎂鉻磚致密化影響因素的研究.pdf

1、東北大學(xué)碩士學(xué)位論文鎂鉻磚致密化影響因素的研究姓名：戴淑平申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：鋼鐵冶金指導(dǎo)教師：于景坤2003.1.1ABSTRACTWiththeuniIltemlDteddevelopmentandtechnicalprogressofthemetallurgicallndustrv’increasingthedensificationdegreeofmagnesiachromebrickshasbecomeoneoftheke

2、ymeansforimprovingtheslagcorrosionresistanceFormostmanuf缸tU時(shí)ngprocesses，whenthegrainsizedistributionandmanufacturingconditionsarefixed，thedensificationprocessofmagnesiachromebricl【SduringsinteringdependschieflyOiltheamou

3、ntofmainrawmaterialsandaddifivesThispaperinvestigatedthreebasicfactorssuchasbulkdensityapparentporosityandcoldcrushings舡engthwhicha∞oftenusedforevaluatingtheslagcorrosionresistanceofmagnesiachromebricksatroomtemperature，

4、andobtainedthefollowingconclusionsbyanalysingthemechanismsofthedensificationofthemagnesiachromebricksuseddifferentraWmaterialsandadditives(1)The鋤。吼tofmainrawmaterialsaffectedevidentlythedensificationprocessofmagnesiachro

5、mebricksWhentheamountoffusedmagnesiaandchromeOrewere10mass％and2145mass％respectivelythebulkdensityofthemagnesiachromebrickstendedtomaximum(2)Theeffectof㈣～1203Oilthedensificationofmagnesiachromebrickshadrelationsnotonlywit

6、htheadditive’Samountbutalsowi血thechemicalcompositionsoftherefractoryrawmaterialsAddingImass％ofaA1203couldimprovethedensificationprocessofthemagnesiachromebrickswhenusedfusedmagnesiachromeBasrawmaterials，butcouldn’twhenus

7、edfusedmagnesiachromeA(3)n02wasnoteffectiveforimprovingthedensificationofmagnesia—chromebricks，butwasvalidforincreasingthecoldcrushingstrength(4)CaC03couldnotpromotethedensificationofmagnesiachromebricks，butincreasedthec