Method and apparatus for production of amorphous alloy article f

Details Method and apparatus for production of amorphous alloy article f Method and apparatus for production of amorphous alloy article f

1998-04-27

2000-04-04

Lin, Kuang Y.

Metal founding

Process

Shaping liquid metal against a forming surface

164 63, 164113, B22D 1806, B22D 3100

Patent

active

060448938

ABSTRACT:
A method and apparatus for producing a formed article of amorphous alloy by a simple process are disclosed. A molding apparatus comprises a forced cooling casting mold which is provided with a sprue and at least one molding cavity communicating with the sprue and further with a cutting member disposed in the casting mold movably in the direction of the sprue, a melting vessel movable in the direction of the sprue, and a molten metal transferring member disposed slidably in the melting vessel or the molding cavity of the casting mold. A formed article of amorphous alloy is obtained by melting an alloying material in the vessel, forcibly transferring the resultant molten alloy into the molding cavity by means of the molten metal transferring member and meanwhile exerting pressure on the molten alloy, rapidly cooling and solidifying the molten alloy in the casting mold thereby conferring amorphousness on the alloy and meanwhile gradually cooling and solidifying the molten alloy in the part of the sprue of the casting mold thereby crystallizing the alloy in that part, cutting the part which has been embrittled by the crystallization by means of the cutting member, and thereafter separating the melting vessel from the casting mold.

REFERENCES:
patent: 5032196 (1991-07-01), Masumoto et al.
patent: 5579825 (1996-12-01), Shibata et al.
patent: 5711363 (1998-01-01), Scruggs et al.

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