Effect of H_(2)O_(2) Addition on Anti-explosion Performance of p-Al_(2)O_(3) Bonded Corundum Castables  

作　　者：WANG Huan WANG Zhanmin FENG Haixia CAO Yingnan LIU Jun XU Yingshun 

机构地区：[1]State Key Laboratory of Advanced Refractories,Sinosteel Luoyang Institute of Refractories Research Co.,Ltd.,Luoyang 471039,China

出　　处：《China's Refractories》2023年第1期14-19,共6页中国耐火材料（英文版）

摘　　要：In order to improve the anti-explosion performance ofρ-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 anti-explosion 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 apparent porosity,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 size 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%.

关 键 词：hydrogen peroxide ρ-alumina corundum castables anti-explosion performance air permeability pore size distribution 

分 类 号：TQ175.732[化学工程—硅酸盐工业]