| 120t LF精炼渣系对弹簧钢55SiCrA夹杂物塑性的影响 |
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| 引用本文： | 王清波,张 华,李永超,卢彩玲,白瑞娟,刘成松. 120t LF精炼渣系对弹簧钢55SiCrA夹杂物塑性的影响[J]. 特殊钢, 2022, 43(1): 34-38 |
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| 作者姓名： | 王清波 张 华 李永超 卢彩玲 白瑞娟 刘成松 |
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| 作者单位： | 1 武汉科技大学材料与冶金学院，武汉 430081 ; 2 河南济源钢铁(集团) 有限公司，济源 459000 |
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| 摘 要： | 在分析"120 t LD→LF→RH→150 mm×150 mm连铸坯→线材轧制"工艺流程生产的弹簧钢55SiCrA的基础上,应用Factsage热力学计算软件进行热力学计算,对精炼工艺进行优化研究.结果 表明:精炼渣系中含SiO241％～ 46％、CaO 36％～41％、Al2O30％～3％、MgO 10％,渣碱度0...
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| 关 键 词： | 弹簧钢55SiCrA 精炼渣 夹杂物塑性化 |
| 收稿时间： | 2021-05-28 |
Effect of 120 t LF ReHning Slag System on Plasticity Inclusions in 55SiCrA Spring Steel |
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| Wang Qingbo,Zhang Hua,Li Yongchao,Lu Cailing,Bai Ruijuan,Liu Chengsong. Effect of 120 t LF ReHning Slag System on Plasticity Inclusions in 55SiCrA Spring Steel[J]. Special Steel, 2022, 43(1): 34-38 |
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| Authors: | Wang Qingbo Zhang Hua Li Yongchao Lu Cailing Bai Ruijuan Liu Chengsong |
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| Affiliation: | 1 School of Materials and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081;2 Henan Jiyuan Iron & Steel ( Group ) Co Ltd, Jiyuan 459000 |
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| Abstract: | Based on the analysis of 55SiCrA spring steel produced by "120 t LD → LF→ RH →150 mm x 150 mm continuous casting billet → wire rolling” process, the thermodynamic calculation is carried out by using Factage thermodynamic calculation software to optimize the refining process. The results show that the inclusions in CaO-SiO2 -Al2O3 system can be transformed into plastic inclusions with the content of SiO2 41% ~ 46% , CaO 36% ～ 41% ,Al2O3 0% ~3% , MgO 10% refining slag and slag basicity 0. 8～1. 0. Using low Ti, Al alloy and non-aluminum refractory material, the smelting end [Al] reduces to 0.0018% ~ 0. 0022% , [Ti ]reduces to 0.001 0% ~ 0. 001 2% , the undeformed inclusions such as aluminum magnesium spinel and TiN in the steel are obviously reduced, the content of Al2O3 in the inclusions is reduced to about 15%. The inclusion ingredient are all located in the low melting point region. |
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