Cold Model Experiments of Gas Removal from Molten Metal by an Irradiation of Ultrasonic Waves.
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- Kobayashi Masaki
- Graduate Student, Department of Materials Science and Engineering, Waseda University
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- Kamata Chizuna
- Graduate Student, Department of Materials Science and Engineering, Waseda University
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- Ito Kimihisa
- Department of Materials Science and Engineering, Waseda University
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Application of the technique of removing dissolved gas by irradiating of ultrasonic waves on a molten metal system was discussed. In water model experiments, dissolved gas can be removed by "rectified diffusion" and the apparent removal rate constant increases linearly with the input power. The addition of non-wettable particles to the bath enhances the degassing. A mathematical model of rectified diffusion suggests that it would be difficult to apply the technique to the gas removal in practical steelmaking processes, where the gas concentration must be controlled to a ppm level. However, since Al2O3 and SiO2 are non-wettable to molten iron, it is promising that small inclusions can be removed by the bubbles generated by ultrasonic waves in a molten iron system.
収録刊行物
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- ISIJ International
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ISIJ International 37 (1), 9-15, 1997
一般社団法人 日本鉄鋼協会
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詳細情報 詳細情報について
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- CRID
- 1390001206452623744
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- NII論文ID
- 10002454617
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- NII書誌ID
- AA10680712
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- COI
- 1:CAS:528:DyaK2sXnsFOhtg%3D%3D
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- ISSN
- 13475460
- 09151559
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- 本文言語コード
- en
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- データソース種別
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- JaLC
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- 使用不可