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Patent Searching and Data


Title:
【発明の名称】鋳型、特に生型に特に易酸化性金属または合金を無重力鋳込した後に鋳込工程を終了させる方法および装置
Document Type and Number:
Japanese Patent JP2787426
Kind Code:
B2
Abstract:
After casting a mould (1) through a bottom inlet (2) with liquid metal (4) under pressure through a mouthpiece (5) of a casting device, the inlet (2) is closed by a closing element (8) being pressed by the mouthpiece (5) into sealing abutment against a seat in the mould (1). Subsequently, an inert gas is introduced into a passage (6) in the casting mouthpiece from a source (9) through a pressure reducing valve (11), a shut-off valve (12) which is capable of being selectively opened, a gas chamber (13) and a bore (14) in the mouthpiece (5). The inert gas is introduced such that the casting device can suck the liquid metal (4) from the closing element (8) a distance backwards in the mouthpiece (5). The effect of this is that oxidation of the liquid metal in the mouthpiece (5) or in the nozzle (7) is avoided, and a faster suction of the metal back from the closing element (8) and the nozzle (7) into the passage (6) of the mouthpiece (5), is achieved.

Inventors:
UAGUN MOGENSEN
SUTEEN PEDERUSEN
Application Number:
JP18357995A
Publication Date:
August 20, 1998
Filing Date:
June 26, 1995
Export Citation:
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Assignee:
DANSUKU IND SHINJIKEITO AS
International Classes:
B22D35/00; B22C9/08; B22D17/20; B22D18/04; B22D21/02; B22D23/00; (IPC1-7): B22D35/00; B22C9/08
Domestic Patent References:
JP52104418A
JP241754A
JP4522020B1
Attorney, Agent or Firm:
Mitsuo Adachi (2 outside)