| 真空感应炉熔炼Fe-Cr-Al合金Al含量控制工艺 |
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| 引用本文： | 刘建民, 严祥, 胡显军. 真空感应炉熔炼Fe-Cr-Al合金Al含量控制工艺[J]. 真空科学与技术学报, 2019, 39(2): 150-154. DOI: 10.13922/j.cnki.cjovst.2019.02.11 |
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| 作者姓名： | 刘建民 严祥 胡显军 |
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| 作者单位： | 1.江苏省(沙钢) 钢铁研究院 张家港 215625 |
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| 摘 要： | 研究了150 kg真空感应炉熔炼Fe-Cr-Al合金Al含量控制工艺。设计了四个熔炼方案, 研究了Al合金加入前炉内压力及钢液温度、随炉C加入量、Fe-Cr-Al合金返回料的使用对Al收得率的影响。结果表明, 随炉C量为0.01%且Al在炉内压力为30 Pa、钢液温度为1500℃的条件下加入收得率可达97.4%;全Fe-Cr-Al合金返回料熔炼, 返回料中Al收得率可达95.6%。
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| 关 键 词： | 真空感应炉 Fe-Cr-Al合金 Al 收得率 |
| 收稿时间： | 2018-09-13 |
Al-Content Control of Fe-Cr-Al Alloy Produced by Melting in Vacuum Induction Furnace |
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| Liu Jianmin, Yan Xiang, Hu Xianjun. Al-Content Control of Fe-Cr-Al Alloy Produced by Melting in Vacuum Induction Furnace[J]. CHINESE JOURNAL VACUUM SCIENCE AND TECHNOLOGY, 2019, 39(2): 150-154. DOI: 10.13922/j.cnki.cjovst.2019.02.11 |
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| Authors: | Liu Jianmin Yan Xiang Hu Xianjun |
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| Affiliation: | 1.The Institute of Research of Iron & Steel, Sha-Steel, Zhangjiagang 215625, China |
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| Abstract: | Herein, we experimentally addressed the problem of oxidation and volatility of Al in formation of Fe-Cr-Al alloy by melting in 150 kg vacuum induction furnace.The influence of the pressure and molten-steel temperature on the Al yielding rate was investigated under the four pre-designed melting conditions, involving the timing and sequence of additions of C, Al, Si, Mn and recycled Fe-Cr-Al alloy scraps into the molten steel.The results show that with 0.01% (wt.) C-content added to the cold raw materials before melting, the highest Al yielding rate could be 97.4% under the optimized conditions, including a liquid-steel temperature of 1500℃, a pressure of 30 Pa.When it comes to melting of only recycled Fe-Cr-Al scraps, the Al yielding rate was 95.6% at most. |
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| Keywords: | Vacuum induction melting furnace Fe-Cr-Al alloy Al Yielding rate |
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