作者：WANG Huan,WANG Zhanmin,FENG Haixia,CAO Yingnan,LIU Jun,XU Yingshun

作者单位：State Key Laboratory of Advanced Refractories,Sinosteel Luoyang Institute of Refractories Research Co.,Ltd.

刊名：China's Refractories

ISSN：1004-4493

出版年：2023-03-15

卷：32

期：1

起页：14-19

止页：

分类号：TQ175.732

语种：英文

关键词：

内容简介

In order to improve the anti-explosion performance of ρ-Al2O3 bonded corundum castables,H202 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 H202 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 H2O2 shall be within 0.075%.