Specialized metallurgical processes – compositions for use therei – Processes – Electrothermic processes
Patent
1986-11-03
1988-10-18
Rosenberg, Peter D.
Specialized metallurgical processes, compositions for use therei
Processes
Electrothermic processes
425 7, C22C 104, C22B 100
Patent
active
047785160
ABSTRACT:
A method for producing ultrafine powder from a metal or metal alloy, including such high surface tension metals and alloys as copper, Cu-Al-Fe alloys and Ni-Cr-Fe-B-Si alloys. A stream of molten metal is atomized under aspiration conditions by a cone of impinging gas streams, the apex of the gas cone being 10-21 mm from the melt outlet and 11-24 mm from the gas orifices. The gas velocity is greater than Mach 1, and the mass flow ratio of melt to gas is less than 0.10.
REFERENCES:
patent: 1635653 (1927-07-01), Williams
patent: 2997245 (1961-08-01), Nilsson et al.
patent: 3253783 (1966-05-01), Probst et al.
patent: 3344469 (1967-10-01), Bylund et al.
patent: 3430289 (1969-03-01), Aikawa et al.
patent: 3501802 (1970-03-01), Ullman et al.
patent: 3533136 (1970-10-01), Holtz, Jr.
patent: 3592391 (1971-07-01), Bender
patent: 3639548 (1972-02-01), Ullman et al.
patent: 3695795 (1972-10-01), Jossick
patent: 3752611 (1973-08-01), Reed et al.
patent: 3817503 (1974-06-01), Lafferty et al.
patent: 3897231 (1975-07-01), Massey
patent: 3901492 (1975-08-01), Lafferty
patent: 3988084 (1976-10-01), Esposito et al.
patent: 4080126 (1978-03-01), Clark et al.
patent: 4194900 (1980-03-01), Ide
patent: 4272463 (1981-06-01), Clark et al.
patent: 4274864 (1981-06-01), Bernhardt
patent: 4374633 (1983-02-01), Hart
patent: 4382903 (1983-05-01), Larsson et al.
patent: 4385878 (1983-05-01), Larsson et al.
patent: 4386896 (1983-06-01), Ray
patent: 4416600 (1983-11-01), Lecznar et al.
patent: 4439379 (1984-03-01), Hart
patent: 4575325 (1986-03-01), Duerig
patent: 4619597 (1986-10-01), Miller
patent: 4619845 (1986-10-01), Ayers et al.
Anderson et al., Submitted to Metallurgical Transactions, Sep. 20, 1984 (unpublished).
Backmark et al., Powder Metallurgy International, 18, pp. 338-340 (1986).
Craig Frances P.
GTE Laboratories Incorporated
Rosenberg Peter D.
LandOfFree
Process to increase yield of fines in gas atomized metal powder does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process to increase yield of fines in gas atomized metal powder, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process to increase yield of fines in gas atomized metal powder will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1193062