| 120t BOF-LF-RH-CC流程GCrl5轴承钢洁净度研究 |
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| 引用本文： | 王昆鹏,王海洋,徐建飞,赵阳,林俊,万文华,王郢.120t BOF-LF-RH-CC流程GCrl5轴承钢洁净度研究[J].特殊钢,2021,42(2):14-17. |
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| 作者姓名： | 王昆鹏 王海洋 徐建飞 赵阳 林俊 万文华 王郢 |
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| 作者单位： | 中天钢铁集团有限公司技术中心,常州213011 |
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| 摘 要： | 对“120 t BOF-LF-RH-CC”流程GCrl5轴承钢的洁净度研究结果表明,LF精炼结束以A12O3 ? MgO尖 晶石和Al2O3-MgO-CaO夹杂为主,RH真空处理后, Al2O3- MgO尖晶石几乎全部消失，钢中夹杂物以液态钙铝酸盐为主,T.0含量降至5.3x10-6；浇注过程中间包重新成Al2O3- MgO尖晶石;RH终点和中间包钢水以及连铸坯未发现≥20um钙铝酸盐夹杂。
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Investigation on Cleanliness of GCrl5 Bearing Steel Produced by 120t BOF-LF-RH-CC Process |
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| Wang Kunpeng,Wang Haiyang,Xu Jianfei,Zhao Yang,Lin Jun,Wan Wenhua,Wang Ying.Investigation on Cleanliness of GCrl5 Bearing Steel Produced by 120t BOF-LF-RH-CC Process[J].Special Steel,2021,42(2):14-17. |
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| Authors: | Wang Kunpeng Wang Haiyang Xu Jianfei Zhao Yang Lin Jun Wan Wenhua Wang Ying |
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| Affiliation: | Technology Center, Zenith Steel Group Co Ltd, Changzhou 213011 |
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| Abstract: | Cleanliness in GCrl5 bearing steel produced by 120 t BOF-LF-RH-CC process investigated results show that the inclusions dominated in steel are Al2 03 . MgO spinel and Al2 03 -MgO-CaO type after LF refining and the Al2 O3 ? MgO spinel is almost disappeared and the inclusions in steel are mainly liquid calcium aluminate after RH treatment. T. 0 content decreases to 5. 3 X 10-6 after RH treatment and Al2O3 ? MgO spinel regenerates in tundish liquid during casting, and the ≥20um calcium aluminate inclusions are not found in liquid at end RH and tundish, and in casting bloom. |
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