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US 12,305,919 B2Granted
Metal melting apparatus, screen plate for metal melting, and method of melting metal
AssigneeTounetsu Co., Ltd.
InventorsKiyata Mochizuki, Tomihiro Iwamoto
Life of this patent
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Abstract
A metal melting apparatus capable of providing a clear melt with little oxides, even when either one or a mixture of scrap material and fresh material is supplied. Solution is provided by a metal melting apparatus including melting chamber to which a melt raw material is supplied, and gas injection system for injecting gas into melt in the melting chamber to generate a vortex of melt in the melting chamber.
Claims5
A method of melting metal comprising:
- disposing, in a melt, a screen plate for metal melting in a form of a plate having a multitude of through holes so that a melt containing an unmolten melt raw material having a lower specific gravity compared with the melt is supplied on a bottom side of the screen plate for metal melting disposed in the melt, and
- melting the unmolten melt raw material by holding the unmolten melt raw material in the melt using the screen plate so as not to come up to a melt surface until the unmolten melt raw material reaches a size to pass through the through holes, and then by allowing the unmolten melt raw material to melt, when reached the size to pass through the through holes, until it surfaces through the melt.
Dependencies are inferred from the claim text.