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Patent Searching and Data


Title:
MEMBER FOR DRAWING UP HIGH PURITY ALUMINUM
Document Type and Number:
Japanese Patent JP2000290737
Kind Code:
A
Abstract:

To provide a member for drawing up a high purity aluminum having little oxidizing wearing and standing up to use for long time at a low cost.

The member 1 for drawing up a high purity aluminum is constituted of a core member 11 integrally forming a basic part 12 as a fitting part to a jig and a shrinking diameter part 13 projecting from the basic part 12 with a graphite having ≥99% purity, and a casting body 21 arranged on the outer periphery of the shrinking diameter part 13, and also a butted on the lower surface of the basic part 12 and composed of graphite-ceramic composite material. On the outer periphery of the bottomed cylindrical core member, a coating body composed of the graphite-ceramic composite material, can be formed. The bottomed cylindrical part of the core member, can be cooled by pouring gaseous nitrogen, etc. A buffering material is interposed between the core member and the coating body formed at the outer periphery and composed of the graphite-ceramic composite material and thus, sintered strain at the sintering time and thermal-stress strain at the using time caused by the difference of both coefficients of thermal expansion can be released.


Inventors:
KATO YOSHINARI
NISHIO YASUSHI
Application Number:
JP10097399A
Publication Date:
October 17, 2000
Filing Date:
April 08, 1999
Export Citation:
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Assignee:
AKECHI CERAMICS KK
International Classes:
C04B35/52; C22B21/06; (IPC1-7): C22B21/06; C04B35/52
Attorney, Agent or Firm:
Hajime Miyake