Effect of Low-Frequency AC Power Supply During Electroslag Remelting on Qualities of Alloy Steel |
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| Authors: | CHANG Li-zhong SHI Xiao-fang YANG Hai-sen LI Zheng-bang |
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| Affiliation: | 1. Department of Metallurgical Technology, Central Iron and Steel Research Institute, Beijing 100081, China
2. School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China |
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| Abstract: | The effect of frequencies of AC power supply on the quality of the electroslag-melted ingot is studied. The results show that with a decrease in the frequency, electromagnetic force becomes more violent, and the temperature in the slag bath becomes more homogeneous, and therefore, the depth of molten metal pool is decreased; electrochemical reactions occur with the decrease in the frequency, and the atomic oxygen electrolyzed dissolves in the molten metal pool; the nonmetallic inclusions, which are distributed dispersively in the ingot, have an increased content,and their size is approximately in the range of 2-3 μm. |
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| Keywords: | electroslag remelting low-frequency AC power supply molten metal pool oxygen electrolytic reaction |
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