Title:
METHOD FOR PRODUCING LEAD-FREE COPPER-BISMUTH ALLOYS AND INGOTS USEFUL FOR SAME
Document Type and Number:
WIPO Patent Application WO/2012/172428
Kind Code:
A3
Abstract:
An ingot which includes at least two metals selected from copper, tin, zinc and bismuth, wherein: (a) the ingot is a mechanical ingot and 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 and 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 of producing a casting using the ingot are disclosed, as is a system for casting a Cu-Bi alloy using the ingot.
Inventors:
SHORE DAVID (CA)
Application Number:
PCT/IB2012/001358
Publication Date:
March 14, 2013
Filing Date:
June 14, 2012
Export Citation:
Assignee:
INGOT METAL COMPANY LTD (CA)
SHORE DAVID (CA)
SHORE DAVID (CA)
International Classes:
C22C9/02; B22D7/02; C22C9/00; C22C9/04; C22C13/02; C22C30/02; C22C30/04
Foreign References:
| US5330712A | 1994-07-19 | |||
| US4708739A | 1987-11-24 | |||
| CN102168208A | 2011-08-31 | |||
| CN101492780A | 2009-07-29 | |||
| GB512143A | 1939-08-30 |
Download PDF:
Previous Patent: PEPTIDE COMPOUNDS FOR INHIBITION OF PLATELET AGGREGATION
Next Patent: ANTHOCYANIN BASED COLORANT COMPOSITIONS
Next Patent: ANTHOCYANIN BASED COLORANT COMPOSITIONS