摘要
为了提高ρ-Al_(2)O_(3)结合刚玉浇注料的抗爆裂性能,在其中分别外加0、0.025%、0.050%、0.075%、0.100%、0.125%(w)的防爆剂H_(2)O_(2),经混练、浇注成型后,一部分在室温下养护12 h后脱模,然后分别在450、500、550、600、650、700、750、800℃下进行抗爆裂试验;另一部分经养护、干燥、烧成后,检测其致密度、常温力学性能、透气度、孔径分布。结果表明:(1)随着H_(2)O_(2)加入量的增大,浇注料的抗爆裂性能逐渐增强,平均孔径逐渐增大,致密度和强度逐渐减小。(2)综合考虑,H_(2)O_(2)的适宜加入量应控制在0.075%(w)以内。
In order to improve the anti-explosion performance of ρ-Al_(2)O_(3) bonded corundum castables,H_(2)O_(2) was added(0,0.025%,0.050%,0.075%,0.100%and 0.125%,by mass)as the explosion-proof agent.After mixing and casting,specimens were prepared.Some specimens were cured at room temperature for 12 h and demoulded for the anti-explosion performance test at different temperatures(450,500,550,600,650,700,750 and 800℃);the other specimens were cured,dried and fired,and tested in terms of the density,the cold mechanical properties,the air permeability and the pore size distribution.The results show that:(1)with the increase of the H_(2)O_(2) addition,the anti-explosion performance of castables increases gradually,the average pore diameter increases gradually,and the density and the strength decrease gradually;(2)by comprehensive consideration,the appropriate addition of H_(2)O_(2) shall be within 0.075%.
作者
王欢
王战民
冯海霞
曹迎楠
柳军
许应顺
Wang Huan;Wang Zhanmin;Feng Haixia;Cao Yingnan;Liu Jun;Xu Yingshun
出处
《耐火材料》
CAS
北大核心
2022年第2期107-111,共5页
Refractories
