| 电弧炉返回法冶炼Crl3型不锈钢工艺优化实践 |
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| 引用本文： | 蒋世川,张健,付建辉,陈琦.电弧炉返回法冶炼Crl3型不锈钢工艺优化实践[J].特殊钢,2019,40(6):34-38. |
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| 作者姓名： | 蒋世川 张健 付建辉 陈琦 |
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| 作者单位： | 1攀钢集团研究院有限公司，成都610303 ；
2海洋装备用金属材料及其应用国家重点实验室，鞍山114009 |
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| 摘 要： | 通过提高返回比并使炉料小型化,控制冶炼过程开始吹氧温度、升温速度和终点温度,将高熔点、低碱度渣系优化为CaO/SiO21.4～2.5的高碱度、低熔点的45.6～53.6 CaO-21.6～32.0 SiO2-3～13 Cr2O3-5～10MgO-5～10 Al2O3-0～5 CaF2复合渣系,以及采取合理的供电制度等工艺措施,使不锈钢冶炼时间缩短30 min/炉,电耗降低75 kWh/t,电极消耗降低1.89 kg/t,炉龄提高64次,渣中Cr2O3含量降低到6%～12%。
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| 收稿时间： | 2019-05-07 |
Process Optimization Practice of Electric Arc Furnace Recirculating Metal for Stainless Steel Cr13 |
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| Jiang Shi Chuan,Zhang Jian,Fu Jian Hui,Chen Qi.Process Optimization Practice of Electric Arc Furnace Recirculating Metal for Stainless Steel Cr13[J].Special Steel,2019,40(6):34-38. |
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| Authors: | Jiang Shi Chuan Zhang Jian Fu Jian Hui Chen Qi |
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| Affiliation: | 1 Pangang Group Research Institute Co Ltd, Chengdu 610303 ；
2 State Key Laboratory of Metal Material for Marine Equipment and Application, anshan 114009 |
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| Abstract: | With using the process measures including increasing the return ratio and miniaturizing the burden, con¬trolling the start-blowing oxygen temperature, heating rate and end-point temperature, modifying the high melting point and low basicity slag series to high basicity of CaO/ SiO2 1.4 ~2.5 and low melting point 45.6 ~ 53.6 CaO-21.6 ~ 32.0 SiO2- 3 ~ 13 Cr2O3-5 - 10 MgO-5 ~ 10 Al2O3-0 ~5 CaF2 slag series, and reasonable power supply system the tap to tap time of stainless steel is shortened by 30 minutes per heat, the power consumption is reduced by 75 kWh/t, the electrode consumption is reduced by 1. 89 kg/t, the furnace life is increased by 64 heats, and the content of Cr2O3 in slag is reduced to 6% 〜 12% |
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