| 摘要 |
PROBLEM TO BE SOLVED: To provide a continuous casting equipment to cast metallic pieces under the application of rotating magnetic field with large magnetomotive force obtained at the same current density and high saturated flux density. SOLUTION: This continuous casting equipment is composed of a cylindrical mold 1 with both ends opened, a nozzle 2 to supply a molten steel 3 from one open end of the mold 1, a cooler 4 to cool the molten steel 3, an electromagnet to apply a rotating magnetic field to the molten steel 3 in the mold 1, and rotating rolls 10 to pull out a solidified shell 9 made as the molten steel 3 grows and a billet 11 made as the solidified shell 9 grows. A magnetic pole 7 is formed narrow in the tip portion and wide in the bottom portion, and an exciting coil 6 is wound so as to meet its shape and cover its surrounding. As a result, the distance between adjacent magnetic pole tip corners is prolonged and the exciting coil 6 can be wound across almost total length of the magnetic pole 7, thus making it possible to reduce leakage flux and at the same time to increase the magnetomotive force by increasing the molten steel penetration flux.
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