Cold-hearth melt-spinning apparatus for providing continuous cas

Metal founding – Means to directly apply electrical or wave energy to work – In continuous casting apparatus

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164256, 164335, 164423, 164429, 164437, 222592, B22D 1106, B22D 1110, B22D 2715

Patent

active

046129731

ABSTRACT:
Cold-hearth melt-spinning apparatus for adapted improved continuous casting of refractory and reactive alloys possesses (1) a cold crucible having a selectively grooved surface operative to reduce both melt "freezing" at the melt/crucible interface and input heating power requirements, and (2) a replaceable nozzle of a refractory material that is friction-fit in an aperture provided therefor in the crucible. The confronting nozzle/crucible walls define a thermally impeding interface which maintains the nozzle at a temperature sufficient to substantially eliminate melt "freezing" in and across the nozzle orifice. The melt is ejected as a molten jet from the crucible by pressure, rapidly quenched on a suitably configured spinning disk into either filaments or flakes, and passed to an environmentally protected processing compartment. Arc heating of the melt is provided by a water-cooled and selectively movable electrode.

REFERENCES:
patent: 2997760 (1961-08-01), Hanks et al.
patent: 3820586 (1974-06-01), Takei
patent: 4471831 (1984-09-01), Ray

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