电磁旋流水口连铸技术对小方坯凝固组织形貌和宏观偏析的影响
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吴春雷,李德伟,朱晓伟,王强
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Influence of Electromagnetic Swirling Flow in Nozzle on Solidification Structure and Macrosegregation of Continuous Casting Square Billet
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Chunlei WU,Dewei LI,Xiaowei ZHU,Qiang WANG
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| 表1 连铸工艺参数 |
| Table 1 Process parameters of continuous casting |
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| Item | Value | Unit |
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| Steel grade | 70# | | | Cross section | 140×140 | mm2 | | Pouring rate | 0.74 | m·s-1 | | Pouring temperature | 1773 | K | | Casting rate | 2.56 | m·min-1 | | M-EMS | ON/OFF | | | M-EMS current intensity | 500 | A | | M-EMS current frequency | 4 | Hz | | F-EMS | ON | | | F-EMS current intensity | 500 | A | | F-EMS current frequency | 12 | Hz | | EMSFN | ON/OFF | | | Current frequency | 50 | Hz | | Current intensity | 200, 400, 600 | A |
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