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US 4,668,288 AGranted
Method of continuously casting a metal and an apparatus for continuously casting the same
AssigneeHitachi Cable, Ltd.
InventorsYutaka Ouchi, Akio Sugino, Kazuo Sugaya, Kazuo Kimizima
Life of this patent
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Abstract
A method of continuously casting a metal and an apparatus for continuously casting a metal wherein such a metal as copper, aluminium and so on is degassed continuously by means of at least two vacuum chambers which are installed over a preserving container for preserving a molten metal before being introduced to a mould and one of which pumps up the molten metal for degassing thereof while the other of which exhausts the molten metal after degassing thereof.
Claims6
A method of continuously casting a metal, comprising the step of:
- degassing a molten metal, and casting the degassed molten metal by introducing the molten metal to a mould,
- wherein said degassing step is performed by providing at two least two vacuum chambers installed on and opening into a preserving container, pumping said molten metal from said preserving container alternately at predetermined time intervals into one of said vacuum chambers for vacuum processing said molten metal while simultaneously exhausting molten metal from the other of said vacuum chambers to mix with said molten metal accommodated in said preserving container.
Dependencies are inferred from the claim text.