Method for producing pressed blanks from ceramic powder, for ins

Details Method for producing pressed blanks from ceramic powder, for ins Method for producing pressed blanks from ceramic powder, for ins

1981-12-24

1984-07-03

Sebastian, Leland A.

Plastic and nonmetallic article shaping or treating: processes

Shaping or treating radioactive material

264 56, 264299, 425107, G21C 2100

Patent

active

044578792

ABSTRACT:
Method for producing molded blanks of ceramic powder, for instance, nuclear reactor fuels such as UO.sub.2, PuO.sub.2, ThO.sub.2 or (U/Pu)O.sub.2 -mixed oxides in powder form in a mold belonging to the molding device. The device has a die with a hole and a plunger with a head movable in this hole relative to this die, by which the wall of the hole is lubricated with a lubricant, characterized by the feature that a paste and/or wax-like substance, preferably a lubricating grease is used as the lubricant and that it has a dripping point which is higher than the operating temperature of the mold.

REFERENCES:
patent: 4060508 (1977-11-01), Sugahara et al.
patent: 4171337 (1979-10-01), Rosen et al.
patent: 4284593 (1981-08-01), Sutcliffe
patent: 4289191 (1981-09-01), Myllymaki
patent: 4297250 (1981-10-01), Gupta et al.

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