矾土骨料种类对铝镁浇注料性能的影响

耐火与石灰 ›› 2022, Vol. 47 ›› Issue (1): 15-19.

矾土骨料种类对铝镁浇注料性能的影响

崔任渠1 王洛1 韩兵强2

1.瑞泰马钢新材料科技有限公司，马鞍山243000；2.武汉科技大学省部共建耐火材料与冶金国家重点实验室，武汉430081

出版日期:2022-02-10 发布日期:2022-01-30

Effects of bauxite aggregate type on properties of Al2O3-MgO castables

Cui Renqu1 Wang Luo1 Han Bingqiang2

1.Ruitai Masteel New Material Technology Co.,Ltd., Ma’anshan 243000, China; 2.The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China

Online:2022-02-10 Published:2022-01-30

摘要/Abstract

摘要：

分别以86级矾土均化料和88级传统倒焰窑矾土熟料为骨料制备了MgO-SiO2-H2O结合铝镁浇注料，采用动态感应炉抗渣试验，通过SEM、EDS分析和FactSage 6.2热化学软件对浇注料的侵蚀结果进行分析。结果表明： (1）以倒焰窑矾土为骨料的试样抗渣渗透性优于以均化矾土为骨料的试样，但两种浇注料的抗渣侵蚀性能相差不大； (2）渣蚀后以均化矾土为骨料的试样接近热面附近的骨料周围会生成较大的裂纹，对试样的抗渣性能产生不利影响，而以倒焰窑矾土为骨料的试样没有观察到裂纹生成； (3）以倒焰窑矾土为骨料的试样和以均化矾土为骨料的浇注料试样与熔渣反应后，有刚玉、复合尖晶石、CA6、C2AS、CAS2等相共存。

关键词:

"> 铝镁浇注料, 矾土, 侵蚀, 渗透, 熔渣

Abstract:

MgO-SiO2-H2O based Al2O3-MgO castables have been prepared with 86% Al2O3 homogenized bauxite and 88% Al2O3 down-draft kiln bauxite as aggregates,respectively.The slag resistance of the castable specimens was investigated by a dynamic testing method via an induction furnace,and the results were studied by SEM,EDS and FactSage 6.2 thermodynamic modeling. The results show that the slag penetration resistance of castable with 88% Al2O3 down-draft kiln bauxite is a little better than the castable with 86% Al2O3 homogenized bauxite,and there is not much difference on slag resistance between the two castables;Cracks were formed at the aggregate-matrix interface near the hot face after the corrosion test,which adversely affects the slag resistance of the sample; After the above two castables respectively reacted with the slag,corundum,composite spinel,CA6,C2AS and CAS2 were coexsited.

Key words:

"> Al2O3-MgO castables, Bauxite, Corrosion, Penetration, Slag

中图分类号:

TQ175.73

崔任渠王洛韩兵强. 矾土骨料种类对铝镁浇注料性能的影响[J]. 耐火与石灰, 2022, 47(1): 15-19.

Cui Renqu Wang Luo Han Bingqiang. Effects of bauxite aggregate type on properties of Al2O3-MgO castables[J]. REFRACTORIES & LIME, 2022, 47(1): 15-19.

[1]	李德民, 　杨　强　张宏进　王义龙　涂军波. 抗侵蚀剂ACAO 对无水炮泥性能的影响[J]. 耐火与石灰, 2023, 48(6): 45-47.
[2]	邵荣丹　何见林　丛培源　夏昌勇. 抗氧化剂对 Al2O3-SiC-C 铁沟浇注料性能的影响[J]. 耐火与石灰, 2023, 48(5): 20-25.
[3]	李　征　于凌月　赵忠轩　宋利宽. 滑板磨床粉对镁铝质浇注料性能的影响[J]. 耐火与石灰, 2023, 48(3): 18-20.
[4]	李　冰　杨秀丽编译. 精炼钢包用铝镁碳砖用后残砖分析[J]. 耐火与石灰, 2023, 48(3): 47-55.
[5]	王　聪王莹莹苏　鑫 . RH 炉镁尖晶石不烧砖研究和用后侵蚀分析[J]. 耐火与石灰, 2023, 48(2): 17-19.
[6]	刘会林白文献. 炼铜炉衬砖的典型侵蚀现象及其监测新技术[J]. 耐火与石灰, 2023, 48(2): 59-62.
[7]	马淑龙　苏玉柱　张康康　孟令汉　高长贺. 水泥窑用低导热单晶相莫来石砖的研制[J]. 耐火与石灰, 2023, 48(1): 1-3.
[8]	张艳利　张小会　程庆先　彭西高 . 我国耐火原料的现状与发展[J]. 耐火与石灰, 2023, 48(1): 12-18.
[9]	鲁志燕 . 电炉渣线砖侵蚀机理及研究进展[J]. 耐火与石灰, 2023, 48(1): 33-35.
[10]	赵　瑞. 刚玉空心微球对矾土基浇注料物理机械性能和抗热震性的影响[J]. 耐火与石灰, 2023, 48(1): 49-53.
[11]	朱宇轩刘浩王周福马妍王玺堂陈少一. 氧化镧对方镁石-镁橄榄石质耐火材料结构与性能的影响[J]. 耐火与石灰, 2022, 47(3): 11-15.
[12]	李洪波. 低碳钢对渣线砖侵蚀机理的研究[J]. 耐火与石灰, 2022, 47(3): 27-29.
[13]	刘林. 套筒窑技术进步与发展概况[J]. 耐火与石灰, 2022, 47(1): 41-44.
[14]	陈希来高世远冯清蓉江群英. RH镁铬砖抗渣侵蚀行为研究[J]. 耐火与石灰, 2021, 46(4): 34-36.
[15]	刘晓妍田琳边振虎. 钢包无铬狭缝式透气塞的研制[J]. 耐火与石灰, 2021, 46(4): 43-46.