Metal founding – Process – Shaping liquid metal against a forming surface
Reexamination Certificate
2006-02-07
2006-02-07
Dunn, Tom (Department: 1725)
Metal founding
Process
Shaping liquid metal against a forming surface
C164S900000
Reexamination Certificate
active
06994147
ABSTRACT:
A method for the refining of primary silicon in hypereutectic alloys by mixing at least two hypereutectic alloys into a solid/semi-solid hypereutectic slurry is described. The method provides control of the morphology, size, and distribution of primary Si in a hypereutectic Al—Si casting by mixing a hypereutectic Al—Si liquid with solid hypereutectic Al—Si particles. The invention enables SSM processing of hypereutectic Al—Si alloys.
REFERENCES:
patent: 4865808 (1989-09-01), Ichikawa et al.
patent: 4917359 (1990-04-01), Ichikawa et al.
patent: 5009844 (1991-04-01), Laxmanan
patent: 5355930 (1994-10-01), Donahue et al.
patent: 5571346 (1996-11-01), Bergsma
patent: 5758707 (1998-06-01), Jung et al.
patent: 5787959 (1998-08-01), Laxmanan et al.
patent: 5968292 (1999-10-01), Bergsma
patent: 6200396 (2001-03-01), Laslaz et al.
patent: 6427754 (2002-08-01), Ozcan
patent: 56146845 (1981-11-01), None
patent: 1089159 (1984-04-01), None
patent: WO 00/43152 (2000-07-01), None
Tatsuya Ohmi, et al., “Effect of Casting Condition on Refinement of Primary Crystals in Hypereutectic Al-Si Alloy Ingots Produced by Duplex Casting Process”, J. Japan Inst. Metals, vol. 56, No. 9, 1992, pp. 1064-1071.
Tatsuya Ohmi, et al., “Control of Primary Silicon Crystal Size of Semi-Solid Hypereutectic Al-Si Alloy by Slurry-Melt Mixing Process”, J. Japan Inst. Metals, vol. 58, No. 11, 1994, pp. 1311-1317.
Apelian Diran
Brown Zach
Killingsworth Dayne
Musser Mark A.
Saha Deepak
Baker & Hostetler LLP
Dunn Tom
SPX Corporation
Tran Len
LandOfFree
Semi-solid metal casting process of hypereutectic aluminum... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Semi-solid metal casting process of hypereutectic aluminum..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Semi-solid metal casting process of hypereutectic aluminum... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3647738