| Anisotropy of Expansion Coefficient and Slag Resistance of Spinel Carbon Bricks |
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| 作者姓名： | YANG Ding＇ao YUAN Shouqian JIANG Mingxue DONG Sunzhen ZHAO Zijian |
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| 作者单位： | [1]College of Materials Science and Engineering,Xi＇an University of Architecture ＆ Technology, Xi＇an 710055, China [2]Dengfeng Second Refractories （Group）Co.Ltd. ,Dengfeng 452473,China [3]Gongyi Jianlong Refractories Co.Ltd. ,Gongyi 451250,China |
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| 摘 要： | 1Introduction Graphite containingrefractoryhasbeenusedfor manyyearsinvariousindustryfieldsincludingthesteel makingindustrysuchasconverters,ladlesandrefractories forcontinuouscastingprocess.However,withthe progressinthecontinuouscastingprocessinrecent years17],therefractoryisrequiredforexcellentcorrosion resistanceinordertoreducetheunitconsumptionand unitcost.Spinelgraphitebricksmaybeusedasdesirable brickswhichcanfulfillthisrequirement.Therefore,spinelcarbonbrickscanbeusedinthesteelmakingladle…
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| 关 键 词： | 尖晶石炭砖 各向异性 抗渣性 膨胀系数 |
| 收稿时间： | 2005-05-12 |
| 修稿时间： | 2005-10-28 |
Anisotropy of expansion coefficient and slag resistance of spinel carbon bricks |
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| Yang Ding'ao,Yuan Shouqian,Jiang Mingxue,Dong Sunzhen,Zhao Zijian.Anisotropy of Expansion Coefficient and Slag Resistance of Spinel Carbon Bricks[J].Journal of Wuhan University of Technology. Materials Science Edition,2006,21(2):142-145. |
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| Authors: | Yang Ding'ao Yuan Shouqian Jiang Mingxue Dong Sunzhen Zhao Zijian |
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| Affiliation: | (1) College of Materials Science and Engineering, Xi' an University of Architecture & Technology, 710055 Xi'an, China;(2) Dengfeng Second Refractories(Group) Co. Ltd., 452473 Dengfeng, China;(3) Gongyi Jianlong Refractories Co. Ltd., 451250 Gongyi, China |
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| Abstract: | Effects of the pressure direction on the thermal expansion and slag corrosion resistance were investigated and anisotropic microstructures of flaky graphite in spinel carbon bricks were examined. The experimental results show that slag corrosion velocities in the direction parallel to the pressure direction display a decrease of 34% compared to those in the vertical direction. Meantime, the linear expansion coefficient in the direction parallel to the pressure direction is 2.45 times as large as that in the vertical pressure direction. Slag corrosion velocities of spinel carbon bricks soaked in the AOD melting slag display a 46%-47% decrease compared to those of magnesia carbon bricks. The microstructure observation shows that spinel carbon bricks have a high degree of preferred orientation. |
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| Keywords: | anisotropy spinel carbon slag resistance expansion coefficient |
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