ρ-Al2O3结合莫来石-刚玉浇注料的研制和应用

耐火与石灰 ›› 2021, Vol. 46 ›› Issue (2): 26-28.

ρ-Al2O3结合莫来石-刚玉浇注料的研制和应用

王德军郁书中胡正阳段春云

瑞泰马钢新材料科技有限公司, 马鞍山243000

出版日期:2021-04-10 发布日期:2021-04-19

Development and application of ρ-Al2O3 bonded mullite-corundum castables

Wang Dejun Yu Shuzhong Hu Zhengyang Duan Chunyun

Ruitai Masteel New Material Technology Co.,Ltd., Ma’anshan 243000, China

Online:2021-04-10 Published:2021-04-19

摘要/Abstract

摘要：

采用ρ-Al2O3替代铝酸钙水泥作为结合剂，以莫来石和板状刚玉为主料，加入一定量的白刚玉细粉、α-Al2O3微粉、SiO2微粉、蓝晶石、金属铝粉和钢纤维以及防爆纤维、聚羧酸盐减水剂和复合调节剂，研制莫来石-刚玉浇注料。制成的中间包包盖在某钢厂使用，使用寿命达21次（185炉），较传统的铝酸钙水泥结合中间包包盖使用寿命平均约提高50%~60%，满足钢厂连铸技术的要求。

关键词: ρ-Al2O3, 莫来石-刚玉浇注料, 中间包包盖

Abstract:

Mullite-corundum castables has been developed by using ρ-Al2O3 instead of calcium aluminate cement as binder,with mullite and tabular corundum as main materials,adding a certain amount of white corundum fine powder,α-Al2O3 micro powder,SiO2 micro powder,kyanite,aluminum metal powder and steel fiber,as well as explosion-proof fiber,polycarboxylate superplasticizer and composite regulator.Such produced tundish cover has been applied in a steel works,whose service life is up to 21 cycles (185 furnaces),and 50%~60% higher than that of the traditional calcium aluminate cement bonded ones on average,meeting the requirements of continuous casting technology.

Key words: ρ-Al2O3, Mullite-corundum castables, Tundish cover

中图分类号:

TQ175.732

王德军郁书中胡正阳段春云. ρ-Al2O3结合莫来石-刚玉浇注料的研制和应用[J]. 耐火与石灰, 2021, 46(2): 26-28.

Wang Dejun Yu Shuzhong Hu Zhengyang Duan Chunyun. Development and application of ρ-Al2O3 bonded mullite-corundum castables[J]. REFRACTORIES & LIME, 2021, 46(2): 26-28.

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