摘要
针对东北特钢集团北满特殊钢有限责任公司普遍采用的炉后增碳法转炉冶炼高碳低磷钢工艺存在的诸多问题,在理论分析和工业试验的基础上,通过造渣模式、化渣脱磷工艺、氧枪枪位及终点控制等工艺技术的系统优化,克服了恶劣原料条件的影响,研究开发了适用于北满特钢的高碳钢转炉冶炼高拉碳工艺,使终点碳质量分数由0.12%提高到0.29%,脱氧剂消耗平均降低了0.21 kg/t,增碳剂消耗平均降低了2.16 kg/t,吨钢成本降低了30.76元,高碳钢综合合格率提高了3.5%。
Recarburizing after tapping in the ladle was widely applied to produce high carbon low phosphorus steel in Beiman Special Steel Co. , Ltd. , and a lot of problems appeared in practice. Based on theoretical analysis and industrial experiments, the related technologies, such as slag formation, dephosphorization, the position of oxygen lance and end-point control, were optimized to reduce the effect of bad raw material. Such a high catch carbon technology was developed to produce high carbon steel in Beiman Special Steel Co. , Ltd. The industrial practice showed that the end-point carbon mass fraction rised from 0. 12 % to 0. 29 %, the consumption of deoxidizer decreased by averaged 0. 21 kg/t, the consumption of carburetant decreased by averaged 2. 16 kg/t, the cost per ton steel decreased by 30. 76 yuan, and the rate of the eligible products rised by3.5%.
出处
《炼钢》
CAS
北大核心
2015年第3期1-4,共4页
Steelmaking
关键词
转炉
高拉碳
脱磷
终点控制
高碳钢
converter
high catch carbon technology
dephosphorization
end-point control
high carbon steel
