Title:
CONTROLLER FOR FLOW OF MOLTEN STEEL IN CONTINUOUS CASTING MOLD
Document Type and Number:
Japanese Patent JP2607333
Kind Code:
B2
Abstract:
PURPOSE: To enable the production of a cast slab excellent in surface characteristic by controlling electromagnetic coils for controlling flow velocity at a meniscus in a mold to a specific value of the flowing speed with the specific value of the frequency.
CONSTITUTION: The electromagnetic coils 7-1, 7-2 for electromagnetic-stirring molten steel discharged from an immersion nozzle 2 inserted into the continuous casting mold 1 are provided. By making the stirring pattern for which the electromagnetic coil center directs to short side from a mold center selectable, the magnetic field impressing direction of each electromagnetic coil can independently be controlled. A control system is connected with the electromagnetic coil so that the flow velocity of the molten steel at the meniscus becomes 10-60 cm/sec by impressing a mobile magnetic field having 50-40000 coil pitch L (mm) ×magnetic field frequency (f) (herz).
Inventors:
Takumi Kondo
Kazuhiko Tsutsumi
Atsushi Fukuda
Kazuhiko Tsutsumi
Atsushi Fukuda
Application Number:
JP15980292A
Publication Date:
May 07, 1997
Filing Date:
June 18, 1992
Export Citation:
Assignee:
Nippon Steel Corporation
International Classes:
B22D11/10; B22D11/04; B22D11/11; B22D11/112; B22D11/115; B22D11/116; (IPC1-7): B22D11/10; B22D11/04
Domestic Patent References:
| JP5775268A | ||||
| JP1228645A | ||||
| JP63104763A | ||||
| JP6316840A |
Attorney, Agent or Firm:
Tachio Chanogi (1 outside)