不同添加物对低碳镁碳砖抗剥落性能的影响  

Effects of Different Additives on Anti-Stripping Performance of Low-Carbon Magnesia Carbon Bricks

作　　者：黄建坤 李双江 张彩东 李兰杰 田志强 张彦辉 HUANG Jiankun;LI Shuangjiang;ZHANG Caidong;LI Lanjie;TIAN Zhiqiang;ZHANG Yanhui(HBIS Materials Technology Research Institute,Shijiazhuang 050023,China)

机构地区：[1]河钢材料技术研究院,河北石家庄050023

出　　处：《工业炉》2024年第4期69-72,共4页Industrial Furnace

基　　金：河北省青年拔尖人才支持计划项目([2016]10)。

摘　　要：研究了添加不同种类抗氧化剂和不同镁源对低碳镁碳砖抗剥落性能的影响。结果表明:(1)不同反应温度的抗氧化剂B_(4)C和SiC复合,试样的抗氧化性能和抗剥落性能最好;(2)使用烧结镁砂或镁碳再生料作为促烧结剂时,试样液相量生成增多,热震破坏形式由剥落掉料转变为侵蚀溶解,镁碳再生料相比烧结镁砂形成的液相量多,更有利于缓解热震剥落;(3)低碳镁碳砖采用B_(4)C和SiC两种抗氧化剂复合,同时添加镁碳再生料促进烧结形成液相,可达到改善抗剥落性能、提高寿命的目的。The effects of adding different types of antioxidants and different magnesium sources on the anti-stripping performance of low-carbon magnesia carbon bricks were investigated.The results showed that:(1)The composite of antioxidant B_(4)C and SiC at different reaction temperatures resulted in the best antioxidant and anti-stripping properties of the sample.(2)When using sintered magnesia or magnesia carbon recycled material as a sintering promoting agent,the liquid phase amount of the sample increased,and the form of thermal shock damage changed from peeling off the material to erosion dissolution.Compared with sintered magnesia,magnesia carbon recycled material formed more liquid phase,which was more conducive to alleviating thermal shock peeling.(3)Low-carbon magnesia carbon bricks were composed of B_(4)C and SiC antioxidants,and the addition of magnesia carbon recycled materials promoted the formation of a liquid phase during sintering,which can improve the anti-stripping performance and prolong the service life.

关 键 词：抗氧化剂复合 镁源 抗剥落性能 液相量 

分 类 号：TQ175.732[化学工程—硅酸盐工业]