Metal founding – Process – Shaping liquid metal against a forming surface
Reexamination Certificate
2005-03-01
2005-03-01
Stoner, Kiley S. (Department: 1725)
Metal founding
Process
Shaping liquid metal against a forming surface
C164S471000, C164S474000, C164S475000, C164S479000, C164S427000, C164S428000, C164S438000
Reexamination Certificate
active
06860317
ABSTRACT:
Disclosed are a method and an apparatus for producing a uranium foil with fine crystalline granules by forming the foil by the gravitational dropping of molten uranium or uranium alloy and rapidly cooling the foil by the contact with cooling rolls, and a foil produced thereby. In accordance with the present invention, a high-purity and high-quality uranium foil with an isotropic structure and fine crystalline granules is easily produced via a simple process without requiring hot rolling and heat treatment processes. The surface of the foil is prevented from oxidizing and residual stress is not imparted to the foil. The productivity and the economic efficiency of the foil are improved.
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Jang Se-Jung
Kim Chang-Kyu
Kim Eung-Soo
Kim Ki-Hwan
Oh Seok-Jin
Arent & Fox PLLC
Korea Atomic Energy Research Institute
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