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长城钢厂和北京钢铁学院合作进行的“电炉冶炼部分合金钢工艺改革”获得成功,经过三年的生产实践和理论分析,找出了冶炼规律,取得了冶炼周期每炉缩短50分钟左右,吨钢电耗平均降低54千瓦·小时。脱氧剂等原材料消耗明显降低,吨钢冶炼成本降低约7元,炉前工人劳动强度也相应减轻,钢的化学成分、低倍组织、机械性能、高倍检验等质量参数,均符合质量要求。 对35吨电炉冶炼过程进行了实验分析,从理论上深化了以O_2代矿脱碳、降低电耗的认识。找出氧化期脱碳量与带入还原期氧化期渣量呈线性关系,用回归出来的数学关系式分析还原期回磷和硅的消耗损失的关系是相符的。在研究中发现还原期脱除渣中不稳
Great Wall Steel and Beijing Institute of Iron and Steel in cooperation with the “electric furnace smelting part of the steel technology reform” was successful, after three years of production practice and theoretical analysis to find out the rule of smelting, and achieved a smelting cycle shortened about 50 minutes per furnace, tons Steel average reduction of 54 kW · h. Deoxidizer and other raw materials consumption decreased significantly, the cost per ton of steel smelting reduced about 7 yuan, the labor intensity of the furnace before the corresponding reduction, the chemical composition of steel, low magnification, mechanical properties, high magnification test and other quality parameters are in line with quality requirements. The experiment of smelting process of 35 t electric furnace was carried out, which theoretically deepens the understanding of O_2 decarburization and power consumption reduction. It is found that the amount of decarburization in the oxidation stage is linear with the amount of oxidized stage slag in the reduction stage. The relationship between the phosphorus loss in the reduction stage and the consumption loss of silicon is consistent with the regression mathematical equation. In the study found that the reduction of unsteady slag removal