Powder metallurgy processes – Powder metallurgy processes with heating or sintering – Making porous product
Patent
1988-10-24
1990-05-29
Goldberg, Howard N.
Powder metallurgy processes
Powder metallurgy processes with heating or sintering
Making porous product
295272, 29890032, 16510427, 419 8, 419 36, 419 40, B22F 300
Patent
active
049294148
ABSTRACT:
A new method for making a heat pipe wick and arteries includes drilling. Radial holes around the circumference of the heat pipe container at its ends and stringing monofilament polymer lines inside the container between corresponding holes. The container is rotated at a slow rate while a slurry of nickel powder mixed into a viscous binder of water, Polyox and Methocel is injected inside the container to cover the inside surface of the container and the lines. The rotational rate of the container is then increased to force the slurry to level out to an uniform depth set by the thickness of sleeves attached at each end of the container. Forced air is blown through the inside of the rotating pipe to dry the slurry and form a green wick. After stopping rotation of the pipe, it is then heated inside a sintering oven in a reducing atmosphere to disintegrate the binder and polymer lines and to leave a sintered metal wick having hollow longitudinal arteries.
REFERENCES:
patent: 3666005 (1972-05-01), Moore, Jr.
patent: 3681843 (1972-08-01), Arcella et al.
patent: 3762011 (1973-10-01), Staudhammer et al.
patent: 3840069 (1974-10-01), Fischer et al.
patent: 3911547 (1975-10-01), Vinz
patent: 3913664 (1975-10-01), Roukis et al.
patent: 4039703 (1977-08-01), Kamijo et al.
patent: 4196504 (1980-04-01), Eastman
patent: 4274479 (1981-06-01), Eastman
patent: 4305756 (1981-12-01), Wiech, Jr.
patent: 4404166 (1983-09-01), Wiech, Jr.
patent: 4461343 (1984-07-01), Token et al.
patent: 4565243 (1986-01-01), Ernst et al.
patent: 4760878 (1988-08-01), Fukui et al.
patent: 4765950 (1988-08-01), Johnson
Beam Jerry E.
Leonard John F.
Cuda I.
Goldberg Howard N.
Singer Donald J.
Singer Fredric L.
The United States of America as represented by the Secretary of
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