Title:
BALL MILL MEMBER FOR PREPARING HIGH PURITY CARBONACEOUS POWDER AND ITS PRODUCTION
Document Type and Number:
Japanese Patent JPH08112539
Kind Code:
A
Abstract:
PURPOSE: To produce a ball mill member for preparing high purity carbonaceous powder.
CONSTITUTION: Phenol refined by vacuum distillation and formaldehyde are brought into an addition-condensation reaction to prepare a precondensation product of phenolic resin. This product is molded, cured by heating and worked into a prescribed shape. The resultant cured molded body is put in a high purity graphite crucible and carbonized by firing at ≥800°C in a heating furnace held in a high purity nonoxidizing atmosphere to produce the objective ball mill member made of glassy carbon having ≤10ppm total ash content.
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Inventors:
SUGIHARA KANJI
Application Number:
JP27611394A
Publication Date:
May 07, 1996
Filing Date:
October 14, 1994
Export Citation:
Assignee:
TOKAI CARBON KK
International Classes:
B02C17/18; B02C17/20; C01B31/02; C04B35/52; (IPC1-7): B02C17/18; B02C17/20; C01B31/02; C04B35/52
Attorney, Agent or Firm:
Masaya Takahata
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