焙烧过程炭阳极的裂纹现象分析  

Analyzing the crackings of carbon anode in baking

作　　者：王利敏[1] 

机构地区：[1]中国铝业股份有限公司河南分公司,河南郑州450041

出　　处：《轻金属》2010年第9期47-51,共5页Light Metals

摘　　要：裂纹作为炭阳极的主要废品类型,严重影响炭阳极的产品质量,也影响电解企业的经济效益和综合成本。本文结合炭阳极的生产过程,详细分析了小颗粒配方在焙烧过程中裂纹产生的机理,控制过程中应力的释放与产生。并提出关键的控制点在于:根据焙烧炉炉型、料箱宽度、火道宽度、制品的理化指标要求,制定相应的焙烧曲线和冷却制度,保证适宜的温度梯度;适宜的填充料粒度、水分作保证;完善装出炉制度,加强工艺过程的管理与监督。Cracks which are regarded as the main waste product type of carbon anodes,have a serious impact on the product quality,also have influence on the economic benefits and the synthesize costs of the smelter.In this article,combining the production process of carbon anodes,the author did a detailed analyse in the small particles through the mechanism of the crack formulation:control stress release and produce in the production process.The author also gives the key control points:according to the type of the bak...

关 键 词：炭阳极 裂纹 应力产生 应力释放 温度梯度 

分 类 号：TF351[冶金工程—冶金机械及自动化]