Processes for producing graphite blocks from graphitizable organ

Details Processes for producing graphite blocks from graphitizable organ Processes for producing graphite blocks from graphitizable organ

1993-08-18

1995-09-12

Langel, Wayne

Chemistry of inorganic compounds

Carbon or compound thereof

Elemental carbon

C01B 3104

Patent

active

054495075

ABSTRACT:
A process for producing a graphite block from a plurality of graphitizable polymer films or a plurality of carbonaceous films separately obtained from graphitizable polymer films is described. The method comprises superposing the plurality of the graphitizable polymer films or the plurality of the carbonaceous films, and thermally treating the plurality of the graphitizable polymer films or the plurality of the carbonaceous films in a substantially compression pressure-free condition when the treating temperature is in the thermal carbonization temperature range and the graphitization temperature range and under compression pressures in temperature ranges between the thermal carbonization temperature and the graphitization temperature ranges and over the graphitization temperature range. The compression pressure over the graphitization temperature range should be higher than that in the range between the thermal carbonization and graphitization temperature ranges. By this, a wrinkle-free graphite block with a good rocking characteristic is obtained.

REFERENCES:
patent: 3900540 (1975-08-01), Robba et al.
patent: 4983244 (1991-01-01), Murakami et al.

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