对再生镁碳砖制备过程中碳化铝的研究

Research on aluminium carbide in preparation of regenerated magnesia

针对在镁碳砖或再生镁碳砖制备过程中被公认为有害物质的碳化铝进行了研究。在所研究的热处理温度范围内,确定了碳化铝的形成机理。在实验中研究了热处理温度和石墨加入量对碳化铝(Al4C3)形成的影响。

This paper studies the aluminium carbide,a recognized harmful substance formed in prep- aration of magnesia carbon bricks or regenerated magnesia carbon bricks. The formation mechanism of aluminium carbide is determined in the range of thermal treated temperatures. The paper also studies the effects of thermal treated temperatures and graphite additions on the formation of aluminium carbide（ A14C3 ）.