Title:
DUMMY BAR HEAD FOR CONTINUOUS CASTING OF BROAD THIN SLAB
Document Type and Number:
Japanese Patent JP3042324
Kind Code:
B2
Abstract:
PURPOSE: To improve the yield at the time of starting casting in highspeed continuous casting of a broad thin slab by using a dummy bar head which is formed to a V-channel shape in section and has projecting parts in the groove.
CONSTITUTION: The dummy bar head 10 for continuous casting of the broad thin slab is formed to the V-channel shape in section and is provided with the many projections 16 on the inside surfaces of side walls 14, 14 constituting the groove part 12. This dummy bar head 10 is connected to a dummy bar and is inserted into a casting mold 22. Molten metal is poured therein and continuous casting is started. The funnel-shaped dummy bar head 10 having the V shape in section is formed, by which the completely solidified part of the slab part in the initial period of casting is lessened. The direct contact of the casting mold 22 with the dummy bar is lessened and the cooling from the casting mold 22 is lessened as far as possible if the thickness of the dummy bar head 10 is gradually reduced in a casting direction. While the solidification of the dummy bar and the slab is assured, the subsequent solidifying is suppressed and the unsolidified layer is made to remain as far as possible.
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Inventors:
Takashi Kanazawa
Tadashi Hiraki
Seiji Kumakura
Tadashi Hiraki
Seiji Kumakura
Application Number:
JP25083194A
Publication Date:
May 15, 2000
Filing Date:
October 17, 1994
Export Citation:
Assignee:
SUMITOMO METAL INDUSTRIES,LTD.
International Classes:
B22D11/08; (IPC1-7): B22D11/08
Domestic Patent References:
| JP417326B1 |
Attorney, Agent or Firm:
Shoichi Hirose