NUMERICAL SIMULATION OF ELECTROMAGNETISM PARAMETERS AND STRUCTURE PARAMETERS IN TWO-STAGE SLIT-LESS MOLD

Acta Metall Sin

2007, Vol. 43

Issue (4): 427-432 DOI:

Research Articles

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NUMERICAL SIMULATION OF ELECTROMAGNETISM PARAMETERS AND STRUCTURE PARAMETERS IN TWO-STAGE SLIT-LESS MOLD

Bai-Gang JIN

东北大学材料电磁过程教育部重点实验室

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Bai-Gang JIN. NUMERICAL SIMULATION OF ELECTROMAGNETISM PARAMETERS AND STRUCTURE PARAMETERS IN TWO-STAGE SLIT-LESS MOLD. Acta Metall Sin, 2007, 43(4): 427-432 .

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Abstract Numerical simulation and orthogonal experiment had been conducted to study the magnetic field distribution in the two-stage soft contact EMCC (electromagnetic continuous casting) mold of round billets. The effects of some factors such as the thickness of mold wall, the resistivity of mold upside part, electrical frequency and coil current intensity to the penetration of magnetic field in two-stage mold were investigated. The magnetic flux density is decreased with the electrical frequency and thickness of mold increasing, but increased with the resistivity of upside mold and coil current intensity increasing. The order of factors affecting the penetration of magnetic field in two-stage mold is electrical frequency＞mold upside resistivity＞coil current intensity＞mold wall thickness. By dimensionless analysis, the relation equation between magnetic flux density and four parameters was given: B/(μ0I/d)= 4.36×109(ρ/If)0.89. Finally, the perfect parameters of two-stage mold used in EMCC are obtained: the thickness of mold wall is 5 mm，the resistivity of mold upside part is 8.8×10-7 Ω•m，coil current intensity is 2000 A, the supply frequency is above 2000 Hz.

Key words: soft contact electromagnetic continuous casting two-stage mold structure parameter electromagnetic f

Received: 10 August 2006

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https://www.ams.org.cn/EN/ OR https://www.ams.org.cn/EN/Y2007/V43/I4/427

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