Aluminum-silicon alloy for high temperature cast components

Details Aluminum-silicon alloy for high temperature cast components Aluminum-silicon alloy for high temperature cast components

1998-12-15

2001-01-02

Ip, Sikyin (Department: 1742)

Metal treatment

Stock

Aluminum base

C420S542000, C420S543000, C420S546000

Utility Patent

active

06168675

ABSTRACT:

BACKGROUND OF THE INVENTION
This invention provides an improved substantially copper-free, lithium-free aluminum casting alloy suitable for use in vehicular brake applications, particularly automotive disk brake assemblies. This new casting alloy retains significant strength at high temperatures, up to about 900° F.
Several aluminum-high silicon alloys have been patented over the years, some with known high temperature end uses. These include: U.S. Pat. Nos. 1,799,837, 2,026,544, 2,026,567, 2,026,568, 2,026,569, 2,026,570, 2,026,571, 2,026,572, 3,306,738, 3,392,015, 3,726,672, 4,147,074, 4,464,442, 4,702,885, 4,785,092, 5,141,703, 5,234,514, 5,415,709, 5,494,540, 5,523,050 and 5,603,783, as well as Canadian Patent No. 2,030,928 and Japanese Patent Nos. 81/38,667, and 01/319,646. In U.S. Pat. No. 5,582,659, there are phosphorus additions to much lower silicon, aluminum alloys.
It is a main objective of this invention to provide an aluminum alloy ideally suited for high temperature, high surface abrasion applications like the ones described above.
SUMMARY OF THE INVENTION
The above objectives of this invention are achieved by way of an alloy composition consisting essentially of: about 12-22 wt % silicon, about 2.5-4.5 wt % nickel, about 0.2-0.6 wt % magnesium, up to about 1.2 wt % manganese, up to about 1.2 wt % iron, and about 0.005-0.015 wt % phosphorus. This alloy composition will also tolerate up to about 0.25 wt % vanadium, up to about 0.2 wt % zirconium, up to about 0.25 wt % titanium and, depending on the intended end use for said casting, up to about 2 wt % cerium and/or mischmetal, the balance aluminum, incidental elements and impurities.


REFERENCES:
patent: 1799837 (1931-04-01), Archer et al.
patent: 2026544 (1936-01-01), Kempf et al.
patent: 2026567 (1936-01-01), Kempf et al.
patent: 2026568 (1936-01-01), Kempf et al.
patent: 2026569 (1936-01-01), Kempf et al.
patent: 2026570 (1936-01-01), Kempf et al.
patent: 2026571 (1936-01-01), Kempf et al.
patent: 2026572 (1936-01-01), Kempf et al.
patent: 3306738 (1967-02-01), Young et al.
patent: 3392015 (1968-07-01), Badia
patent: 3726672 (1973-04-01), Lindberg et al.
patent: 4147074 (1979-04-01), Noguchi et al.
patent: 4290510 (1981-09-01), Warren
patent: 4464442 (1984-08-01), McDonald et al.
patent: 4702885 (1987-10-01), Odani et al.
patent: 4785092 (1988-11-01), Nanba et al.
patent: 5141703 (1992-08-01), Schmid et al.
patent: 5234514 (1993-08-01), Donahue et al.
patent: 5415709 (1995-05-01), Kita
patent: 5484492 (1996-01-01), Rogers et al.
patent: 5494540 (1996-02-01), Ochi et al.
patent: 5523050 (1996-06-01), Lloyd et al.
patent: 5582659 (1996-12-01), Hashimoto et al.
patent: 5603783 (1997-02-01), Ferreira
patent: 2030928 (1992-05-01), None
patent: 56-038667 (1981-09-01), None
patent: 01-319646 (1989-12-01), None
patent: 6-306521 (1994-11-01), None
patent: 7-090459 (1995-04-01), None
patent: 7-252569 (1995-10-01), None
patent: 9-272939 (1997-10-01), None

Affiliated with

Also associated with

Rating

Aluminum-silicon alloy for high temperature cast components does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Aluminum-silicon alloy for high temperature cast components, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Aluminum-silicon alloy for high temperature cast components will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2488059