Title:
METHOD FOR CONTINUOUSLY CASTING MOLTEN METAL
Document Type and Number:
Japanese Patent JP3393712
Kind Code:
B2
Abstract:
PURPOSE: To obtain a continuous casting method for producing a cast slab having good surface characteristic in many kinds of metals by impressing AC current applied with stepped intensities to an electromagnetic coil arranged to the same axis with a mold around the mold.
CONSTITUTION: While induction-heating molten metal 8 in a water-cooling vessel 2 formed with electrically conductive segments by an induction-heating coil 3, this molten metal is held to the molten-state. Thereafter, this molten metal 8 is solidified by using the mold 4 connected with the lower side of the water- cooling vessel 2 and the obtd. cast slab is continuously drawn out. At this time, the electromagnetic force is given to the molten metal 8 in the mold 4 by an intermittent electromagnetic force impressing coil 5 arranged so as to surround the outer periphery of the mold and the lubrication is improved by reducing the friction resistance between a solidified shell 7 and the mold 4. Then, in the AC current impressed to the intermittent electromagnetic force impressing coil 5 on the outer periphery of the mold, the stepped intensities are periodically given in this amplitude.
Inventors:
Takehiko Fuji
Eiichi Takeuchi
Shigeo Asai
Kensuke Sasa
Eiichi Takeuchi
Shigeo Asai
Kensuke Sasa
Application Number:
JP22637494A
Publication Date:
April 07, 2003
Filing Date:
September 21, 1994
Export Citation:
Assignee:
Nippon Steel Corporation
Shigeo Asai
Shigeo Asai
International Classes:
B22D11/07; B22D11/04; B22D11/10; B22D11/114; B22D11/115; B22D11/16; (IPC1-7): B22D11/16; B22D11/04; B22D11/07; B22D11/115
Domestic Patent References:
| JP237943A | ||||
| JP3294057A | ||||
| JP6483348A |
Attorney, Agent or Firm:
Tomoyuki Yathata (1 outside)