Plastic and nonmetallic article shaping or treating: processes – Shaping or treating radioactive material
Patent
1977-03-07
1979-02-20
Hunt, Brooks H.
Plastic and nonmetallic article shaping or treating: processes
Shaping or treating radioactive material
G21C 2100
Patent
active
041407385
ABSTRACT:
There is provided a process for the production of block fuel elements for gas cooled high temperature reactors by multiple step molding of a granulated graphite material comprising a mixture of natural graphite powder, synthetic graphite powder and binder resin together with coated fissile and fertile fuel particles using a lubricant and a hydrocarbon, alcohol, phenol, amine, aldehyde, ketone or ether as an air displacing agent whereby the outer form and the cooling gas channels are produced by molding and the molding temperature in the last molding step is above the softening point of the binder resin and wherein the binder resin is so chosen that it has a softening point at least 15.degree. C above the melting point of the lubricant used and the block is ejected from the die in the temperature interval between the melting point of the lubricant and the softening point of the binder resin.
REFERENCES:
patent: 3845178 (1974-10-01), Hrovat et al.
patent: 3975471 (1976-08-01), Hrovat et al.
patent: 4024209 (1977-05-01), Ballard et al.
Hrovat Milan
Rachor Lothar
Hobeg Hochtemperaturreaktor-Brennelement GmbH
Hunt Brooks H.
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