Molten metal conveying means and method of conveying molten metal from one place to another in a metal-melting furnace with simultaneous degassing of the melt
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United States of America Patent
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Nov 21, 1995
Issued Date -
N/A
app pub date -
Apr 19, 1993
filing date -
Nov 27, 1991
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Abstract
A method, for the conveyance of molten metal from one place to another, in a high-temperature molten metal pool in a metal-melting furnace or out of said molten metal pool, employing an at least partially-inclined elongated conveying conduit and gas feed means for feeding inert gas into the lower end of the conveying conduit and thereby inducing a flow of molten metal in and through said conveying conduit, is disclosed, along with suitable apparatus for carrying out the said method wherein the parts or elements coming into contact with the high-temperature molten metal pool are of a suitable refractory material. According to the present invention, the inert gas is fed into the conveying conduit at a supersonic velocity, thereby simultaneously effecting a degassing of the molten metal while it is being conveyed.
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