Metal founding – Process – Disposition of a gaseous or projected particulate molten...
Patent
1988-03-07
1989-05-16
Eley, Timothy V.
Metal founding
Process
Disposition of a gaseous or projected particulate molten...
164 47, 164497, 164 661, 164117, 164259, 164286, B22D 1110
Patent
active
048300845
ABSTRACT:
Apparatus for the production of a metal article comprises means for maintaining a reservoir of molten metal with a free surface, means for rotating the free surface of the reservoir about an axis such that the molten metal is atomized and thrown outwardly away from the said surface by centrifugal action, and a substrate in the path of the atomized particles of said molten metal, whereby a solid article may be built up on the substrate by solidifying the atomized particles thereon. The molten metal may be produced by melting an electrode or otherwise.
An annular solid metal article is disclosed having excellent mechanical properties. The solid metal article is produced in a single step by a spray deposition process. Molten metal is centrifugally atomized to splat and build up on a cooled mold surface disposed around the centrifuge means. Controlled relative reciprocatory movement in the direction of the rotational axis of the centrifuge is provided. By regulating this relative movement appropriately, the shape and width of the deposited article is determined. The process is carried out in an oxygen-free atmosphere. The product is a fully integrated solid, substantially free from voids, in which the original splat particle boundaries are almost undetectable, and grain growth occurs freely across the original particle boundaries.
REFERENCES:
patent: 2129702 (1938-09-01), Merle
patent: 2864137 (1958-12-01), Brennan
patent: 2894485 (1959-07-01), Sedlacsik, Jr.
patent: 3442688 (1969-05-01), Pettigren
patent: 3689987 (1972-09-01), Teague
patent: 3721286 (1973-03-01), Paton et al.
patent: 3826301 (1974-07-01), Brooks
Hodkin, et al., "Centrifugal Shot Casting", Powder Metallurgy, vol. 16, No. 32, 1973, pp. 278-287.
Jones, et al., "Rotary Atomizing Technique for Bulk Splat Cooling", Journal of Physics E: Scientific Instruments, vol. 4, 1971, pp. 671-674.
LandOfFree
Spray casting of articles does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Spray casting of articles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Spray casting of articles will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2315423