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Patent Searching and Data


Title:
INGOT-MAKING APPARATUS FOR MOLTEN STEEL
Document Type and Number:
Japanese Patent JPH11197796
Kind Code:
A
Abstract:

To provide an ingot-making apparatus, in which inclusion defective in the obtd. steel ingot is reduced and the surface condition of the steel ingot is improved and further, the development of a pipe-shaped defect is restrained.

A casting steel plate 3 provided with a mold 5 and a molten steel pouring tube 4 is laid on a frame base 2 through load cells 9 in a vacuum chamber 1. A vessel 10 which has an opening part at the upper part and a molten steel flowing-out hole 10b at the bottom part is arranged above the molten steel pouring tube 4, and the molten steel flowing-out hole 10b is closed with a vertically movable stopper rod 11. A tiltable vacuum induction melting furnace 7 for pouring the molten steel 8 into the vessel 10 is arranged near the upper opening part 10a of the vessel 10.


Inventors:
KOBAYASHI KATSUTOSHI
MIZUGUCHI KEIICHI
MORITA HIROTAKA
Application Number:
JP1998000003166
Publication Date:
July 27, 1999
Filing Date:
January 09, 1998
Export Citation:
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Assignee:
DAIDO STEEL CO LTD
International Classes:
B22D39/04; B22D7/00; B22D7/06; B22D41/20; (IPC1-7): B22D7/00; B22D7/06; B22D39/04; B22D41/20
Attorney, Agent or Firm:
長門 侃二