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石墨渣浇注而引起的钢材增碳严重危及钢的质量,而低碳(或微碳)电厂灰渣的保温性能较差,并伴有不同程度的粘模现象。现有剖锭数据统计分析结果表明:消除或改善增碳弊病的途径之一是降低保护渣中固定碳含量(5%以下)、改变碳素源类型(采用无定形碳);途径之二是加强头部绝热保温,尤其是减少顶部辐射热损失,以增大偏析角,使偏析带上移。CB 渣首次成功地移植了防缩孔剂中的酸化石墨,使微碳电厂灰渣的保温性能比 MB2—5石墨渣略胜一筹;同时采用含无定形碳36%左右的超细粉末 CB 剂作骨架材料,高度弥散以至均匀包裹 CB 渣母剂颗粒,克服了熔化过程中的分熔现象,使 CB 渣具备均匀物性质,表现了稳定良好的综合性能。
Carbon steel caused by graphite slag pouring seriously endanger the quality of steel, while low-carbon (or micro-carbon) power plant ash insulation performance is poor, accompanied by varying degrees of sticky phenomenon. Statistical analysis of the existing ingot data shows that one of the ways to eliminate or improve the carbon booster is to reduce the fixed carbon content (less than 5%) in the flux and change the type of carbon source (using amorphous carbon). The second is Strengthen the head adiabatic insulation, in particular, reduce the top of the radiant heat loss to increase the segregation angle, the segregation zone up. For the first time, CB slag transplants the acidified graphite in anti-cramping agent to make the thermal insulation performance of the ash of the micro-carbon power plant slightly better than that of MB2-5 graphite slag; meanwhile, it uses ultrafine powder CB with 36% amorphous carbon As a skeleton material, highly dispersed and even wrapped CB slag mother particles, to overcome the melting process melting phenomenon, so that CB slag with uniform properties, showing a stable and good overall performance.