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Effect of an AC Magnetic-field on the Dead-zone Range of Inclusions in the Circular Channel of an Induction-heating Tundish
| Title: | Effect of an AC Magnetic-field on the Dead-zone Range of Inclusions in the Circular Channel of an Induction-heating Tundish |
| Authors: | Zhang, Qi Browse this author | | Xu, Guangye Browse this author | | Iwai, Kazuhiko Browse this author →KAKEN DB |
| Keywords: | inclusions | | AC magnetic-field | | dead-zone | | horizontal circular channel | | channel-type induction-heating tundish |
| Issue Date: | 15-Jan-2022 |
| Publisher: | 一般社団法人 日本鉄鋼協会 (The Iron and Steel Institute of Japan) |
| Journal Title: | ISIJ international |
| Volume: | 62 |
| Issue: | 1 |
| Start Page: | 56 |
| End Page: | 63 |
| Publisher DOI: | 10.2355/isijinternational.ISIJINT-2021-352 |
| Abstract: | In this paper, the radial electromagnetic force in the horizontal circular channel of an induction-heating tundish is derived. A dimensionless trajectory model of the inclusion is developed and numerically solved to acquire the trajectory of the moving inclusion. When the inclusion is in the lower half of the horizontal circular channel, the direction of the vertical component of the radial electromagnetic pinch force which acts on the inclusion is opposite to the buoyancy. Provided their magnitudes are the same, there is a balanced-position for the inclusions in a circular channel. Therefore, a dead-zone exists near the balanced-position, where the removal time of the inclusion with an AC magnetic-field is longer than without it. Then, the effect of the AC magnetic-field parameters on the range of the dead-zone is identified, which makes it possible to improve the removal efficiency of inclusions. The range of the dead-zone decreases with increasing magnetic-field intensity. When the dimensionless magnetic-field intensity is 56.3, the shielding parameter of 10-15.9 are optimal to decrease the range of the dead-zone. |
| Type: | article |
| URI: | http://hdl.handle.net/2115/85546 |
| Appears in Collections: | 工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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