| 莱钢50t EBT EAF-LF(VD)-CC生产GCr15轴承钢的工艺实践 |
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| 引用本文： | 李法兴,兰新哲,宋永辉,胡蒙均,孙永喜.莱钢50t EBT EAF-LF(VD)-CC生产GCr15轴承钢的工艺实践[J].特殊钢,2006,27(3):57-58. |
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| 作者姓名： | 李法兴 兰新哲 宋永辉 胡蒙均 孙永喜 |
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| 作者单位： | 1西安建筑科技大学，西安710055;
2莱芜钢铁股份有限公司，莱芜271105 |
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| 摘 要： | 莱钢采用EAF全程泡沫渣埋弧操作,EBT出钢合金化,LF 2次精炼渣碱度4.0~5.0,精炼渣的主要成分(%)为:45~50CaO,9~13SiO2,9~13Al2O3,7~8MgO,SiC扩散脱氧和40~60 L/min流量氩气搅拌,VD处理时间≥15 min,连铸全程保护浇铸生产GCr15轴承钢。GCr15轴承钢中的平均氧含量为7.9×10-6,最高氧含量为10×10-6。
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| 关 键 词： | GCr15轴承钢 EAF-LF(VD)-CC 氧含量 |
| 收稿时间： | 2006-01-16 |
| 修稿时间： | 2006-01-16 |
Practice of GCr15 Bearing Steel Production by 50 t EBT EAF - LF(VD) - CC Process |
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| Li Faxing,Lan Xinzhe,Song Yonghui,Hu Mengjun,Sun Yongxi.Practice of GCr15 Bearing Steel Production by 50 t EBT EAF - LF(VD) - CC Process[J].Special Steel,2006,27(3):57-58. |
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| Authors: | Li Faxing Lan Xinzhe Song Yonghui Hu Mengjun Sun Yongxi |
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| Affiliation: | 1 Xi'an Architecture and Technology University,Xi'an 710055;
2 Laiwu Iron and Steel Co Ltd,Laiwu 271105 |
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| Abstract: | The CCr15 bearing steel is produced at Laiwu Steel by using foaming slag submerged are operation in whole period of EAF steelmaking,EBT tapping alloying,LF secondary refining slag basicity being 4.0～5.0,main composition of refining slag-45～50CaO,9~13SiO₂,9～13Al₂O₃,7~8MgO,diffusion-deoxidizing by SiC and Ar stiring with flow rate 40~60 L/min,VD treatment time ≥15 min,and casting with shielding practice in whole period. The average oxygen content in GCr15 bearing steel is 7.9×10-6,and the maximum oxygen content is 10×10-6. |
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| Keywords: | EAF-LF(VD)-CC |
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