Preparation of corundum-spinel castables using microporous corundum-spinel aggregates to replace corundum aggregates

doi:10.3969/j.issn.1001-1935.2023.06.011

Refractories ›› 2023, Vol. 57 ›› Issue (6): 514-517.DOI: 10.3969/j.issn.1001-1935.2023.06.011

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Preparation of corundum-spinel castables using microporous corundum-spinel aggregates to replace corundum aggregates

Liu Xuexin, Zhang Jinhua, Chen Xinming, Wang Jingran, Yang Zongyuan, Han Bingqiang, Ke Changming

First author's address: The State Key Laboratory of Refractories and Metallurgy,Wuhan University of Science and Technology,Wuhan 430081,Hubei,China

Received:2023-03-24 Published:2023-12-25

以微孔刚玉-尖晶石骨料替代刚玉骨料制备刚玉-尖晶石浇注料

刘学新^{1, 2)}, 张锦化¹⁾, 陈鑫铭¹⁾, 王景然¹⁾, 杨宗源¹⁾, 韩兵强¹⁾, 柯昌明¹⁾

1)武汉科技大学省部共建耐火材料与冶金国家重点实验室湖北武汉 430081
2)湖北斯曼新材料股份有限公司湖北黄冈 438400

通讯作者: 柯昌明
作者简介:刘学新:男,1976年生,博士研究生。E-mail:lxx@hbsmile.cn
基金资助:
唐山市科技计划(19140207F)。

Abstract

Abstract: To improve the thermal insulation properties of corundum-spinel castables for the steel ladle working lining,the castables were prepared using microporous corundum-spinel aggregates to partially or totally replace sintered corundum aggregates with the same grain size.Effects of the aggregates on the bulk density,porosity,mechanical strength,thermal conductivity and slag resistance were investigated.The results indicate that,when the sintered corundum aggregates were substituted by microporous corundum-spinel aggregates partially or totally with the same grain size,the bulk density and thermal conductivity decrease remarkably,and the slag resistance is similar.As the working lining,the developed castables are beneficial to reducing the ladle mass and improving ladle insulation performance.

Key words: microporous aggregate, corundum-spinel, steel ladle castables, thermal conductivity, slag resistance

摘要： 为提高钢包工作衬用刚玉-尖晶石浇注料的保温性能,以微孔刚玉-尖晶石骨料部分或全部替代同粒级的烧结刚玉骨料,制备了刚玉-尖晶石浇注料,对比研究了不同骨料对浇注料的体积密度、气孔率、力学强度、热导率、抗渣性等的影响。结果表明:采用微孔刚玉-尖晶石骨料部分或全部替代同粒级的烧结刚玉骨料制备的刚玉-尖晶石浇注料,其体积密度和热导率均明显降低,抗渣性能与传统烧结刚玉骨料制备的浇注料相当。将其用于钢包工作衬,有助于钢包减重,提高钢包保温性能。

关键词: 微孔骨料, 刚玉-尖晶石, 钢包浇注料, 热导率, 抗渣性能

CLC Number:

TQ175

Liu Xuexin, Zhang Jinhua, Chen Xinming, Wang Jingran, Yang Zongyuan, Han Bingqiang, Ke Changming. Preparation of corundum-spinel castables using microporous corundum-spinel aggregates to replace corundum aggregates[J]. Refractories, 2023, 57(6): 514-517.

刘学新, 张锦化, 陈鑫铭, 王景然, 杨宗源, 韩兵强, 柯昌明. 以微孔刚玉-尖晶石骨料替代刚玉骨料制备刚玉-尖晶石浇注料[J]. 耐火材料, 2023, 57(6): 514-517.

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Preparation of corundum-spinel castables using microporous corundum-spinel aggregates to replace corundum aggregates

以微孔刚玉-尖晶石骨料替代刚玉骨料制备刚玉-尖晶石浇注料

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