| SiCaBa合金对55SiCr弹簧钢的脱氧脱硫及夹杂物控制研究 |
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| 引用本文： | 刘锦文,铁占鹏,郭路召,张硕,张家泉,唐海燕.SiCaBa合金对55SiCr弹簧钢的脱氧脱硫及夹杂物控制研究[J].特殊钢,2020,41(3):20-24. |
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| 作者姓名： | 刘锦文 铁占鹏 郭路召 张硕 张家泉 唐海燕 |
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| 作者单位： | 北京科技大学冶金与生态工程学院，北京,100083 |
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| 基金项目： | 国家自然科学基金资助项目(51874033, U1860111)；北京市自然科学基金资助项目 (2182038) |
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| 摘 要： | 针对服役条件要求苛刻的55SiCr气门弹簧钢,采用高温管式炉试验研究了低氧条件下向钢中加入SiCaBa合金的脱氧、脱硫及夹杂物控制规律。结果表明,SiCaBa合金有进一步深脱氧、深脱硫的效果,并可细化夹杂物尺寸;在钢中加入0.48 kg/t钢的SiCaBa合金（49.8%Si-25.6%Ca-11.1%Ba）和Fe2O3含量低于1%的精炼渣能使TO]和S]分别降至11×10-6和8×10-6。
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| 收稿时间： | 2019-12-25 |
Study on Deoxidation,Desulfurization and Inclusion Control of SiCaBa Alloy on Spring Steel 55SiCr |
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| Liu Jinwen,Tie Zhanpeng,Guo Luzhao,Zhang Shuo,Zhang Jiaquan,Tang Haiyan.Study on Deoxidation,Desulfurization and Inclusion Control of SiCaBa Alloy on Spring Steel 55SiCr[J].Special Steel,2020,41(3):20-24. |
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| Authors: | Liu Jinwen Tie Zhanpeng Guo Luzhao Zhang Shuo Zhang Jiaquan Tang Haiyan |
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| Affiliation: | School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing,Beijing 100083 |
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| Abstract: | For the 55SiCr valve spring steel with strict service condition,its deoxidation,desulfurization and inclusion change are studied by laboratory experiments under a low oxygen condition by adding SiCaBa alloy into the molten steel. The results show that SiCaBa alloy has the effect of deep deoxidation and desulfurization, as well as refining the inclusion size. By adding 0.48 kg/t steel of SiCaBa alloy with 49. 8% Si-25. 6% Ca-11. 1% Ba and a proper amount of refining slag with Fe203 content less than 1% ,the T0] and S] can respectively decrease to 11 x 10-6 and 8 x 10-6. |
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