120t BOF-LF-RH-CC流程GCrl5轴承钢洁净度研究

特殊钢 ›› 2021, Vol. 42 ›› Issue (2): 14-17.

所属专题：轴承钢；夹杂物控制

120t BOF-LF-RH-CC流程GCrl5轴承钢洁净度研究

王昆鹏，王海洋，徐建飞，赵阳，林俊，万文华，王郢

中天钢铁集团有限公司技术中心,常州213011

出版日期:2021-04-01 发布日期:2022-04-13
作者简介:王昆鹏(1988-)，男，博士(2017年北京科技大学)，副主任工程师,2010年昆明理工大学(本科)毕业，特殊钢中夹杂物控制技术。

Investigation on Cleanliness of GCrl5 Bearing Steel Produced by 120t BOF-LF-RH-CC Process

Wang Kunpeng, Wang Haiyang, Xu Jianfei, Zhao Yang, Lin Jun, Wan Wenhua ,Wang Ying

Technology Center, Zenith Steel Group Co Ltd, Changzhou 213011

Published:2021-04-01 Online:2022-04-13

摘要/Abstract

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。

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.

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.

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.

120t BOF-LF-RH-CC流程GCrl5轴承钢洁净度研究

Investigation on Cleanliness of GCrl5 Bearing Steel Produced by 120t BOF-LF-RH-CC Process

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