MANUFACTURE OF COPPER-CARBON FIBER COMPOUND MATERIAL

Japanese Patent JPS58135647

A

PURPOSE:To obtain a Cu-C compound material having almost no difference between the coefficient of thermal expansion on the center part and that on the circumference of the material by a method wherein copper coated carbon fibers, which are made into a bundle and twisted, is used as a core material, other steel coated carbon fibers are wound thereon, and then they are compressed and heated up. CONSTITUTION:The core material 11 is obtained by having a plurality of steel coated carbon fibers made into bundles and twisted. This core material is twisted in a clockwise direction, for example, the tensile dorce at both ends as shown by the arrows A and B, and twisting force as shown by the arrows C and D are added, and the above is formed into a strong stick form body. Nos. 12 and 13 are the side plates provided on the stick type core material 11, and a steel coated carbon fiber bundle 14 is wound around the core material 11 using the side plates 12 and 13. After a prescribed amount of the steel coated carbon fiber 14 has been wound around, the side plates 12 and 13 are removed, and the carbon fiber is soaked into the slurry of copper powder and copper powder is impregnated into the carbon fibers, as occasion demands, for the purpose of regulating the composition ratio between copper and carbon. Then, the wound body is heated and compressed together with the core material 11, copper is formed into matrix and a Cu-C compound material wherein carbon fibers are enbedded can be obtained.

SUZUKI KENJI
NARITA KAZUTOYO

JP1754682A

August 12, 1983

February 08, 1982

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HITACHI LTD

C22C47/16; B32B9/00; C22C47/00; C22C47/18; C22C49/14; H01L21/52; (IPC1-7): B32B15/20; C22C1/09; H01L21/58

Katsuo Ogawa

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