Method for producing lead-free copper—bismuth alloys and ingots useful for same

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United States of America Patent

PATENT NO 9050651
APP PUB NO 20120321506A1
SERIAL NO

13159562

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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An ingot includes at least two metals selected from copper, tin, zinc and bismuth, wherein: (a) the ingot is a mechanical ingot, the at least two metals are 40-95 wt. % copper, 3-80 wt. % tin, 1-40 wt. % bismuth and/or 1-80 wt. % zinc, and other metals are present in a collective amount of 0-2 wt. %; or (b) the ingot is a cast ingot, the at least two metals are 40-80 wt. % copper, 3-80 wt. % tin, 1-40 wt. % bismuth and/or 1-80 wt. % zinc, and other metals are present in a collective amount of 0-2 wt. %, provided that when copper is present in the cast ingot in an amount greater than 69 wt. %, zinc is present in an amount less than 30 wt. %. Methods for preparing and casting the ingot are also disclosed, as is a system for casting a copper-bismuth alloy.

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Patent Owner(s)

Patent OwnerAddress
INGOT METAL COMPANY LIMITED111 FENMAR DRIVE WESTON ONTARIO M9L 1M3

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Shore, David Weston, CA 10 81

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