Production of spray cast strip

Details Production of spray cast strip Production of spray cast strip

1990-12-31

1992-10-13

Lin, Kuang Y.

Metal founding

Process

Disposition of a gaseous or projected particulate molten...

164461, B22D 2300, B22D 1900

Patent

active

051542196

ABSTRACT:
The spray casting of metal wherein an atomized spray of metal droplets is caused to be deposited upon a moving metallic foil substrate. The metallic foil substrate is maintained under tension as it passes in a position to receive the deposit such that thermal distortion is eliminated without causing tensile failure. In the second embodiment, the leading edge of the spray is positioned such that it does not contact the foil whereby the low mass density thereof does not contribute to deposit helping to eliminate bottom porosity.

REFERENCES:
patent: 2639490 (1953-05-01), Brennan
patent: 3775156 (1973-11-01), Singer
patent: 3826301 (1974-07-01), Brooks
patent: 3909921 (1975-10-01), Brooks
patent: 4779802 (1988-10-01), Coombs
patent: 4977950 (1990-12-01), Muench
R. W. Evans et al., "The Osprey Preform Process", Powder Metallurgy, vol. 28, No. 1, 1985, pp. 13-20.
A. G. Leatham et al, "The Osprey Process for the Production of Spray-Deposited Roll, Disc, Tube and Billet Preforms", Modern Developments in Powder Metallurgy vols. 15-17, 1985, pp. 157-173.
S. Asai, "Birth and Recent Activities of Electromagnetic Processing of Materials", ISIJ International, vol. 28, 1989, No. 12, pp. 981-992.

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