Title:
多結晶質研磨性粗粒子
Document Type and Number:
Japanese Patent JP3957632
Kind Code:
B2
Abstract:
A method is provided for producing a plurality of polycrystalline ultra-hard abrasive grit. The method includes the steps of providing a mass of ultra-hard abrasive particles or a mass of a combination of a precursor for such particles and a suitable solvent/catalyst, forming the mass into a plurality of green state granules, placing the granules with a separating medium between adjacent granules in the reaction zone of a high pressure/high temperature apparatus, subjecting the contents of the reaction zone to elevated temperature and pressure conditions which the ultra-hard abrasive particle is crystallographically stable, recovering the thus sintered material from the reaction zone and removing the separating medium in the sintered material to produce a plurality of crystalline abrasive grit. The ultra-hard abrasive is generally diamond or cubic boron nitride.
Inventors:
Freeze, Robert
Sigara, Lacovos
Nebelung, Manfrets
Sigara, Lacovos
Nebelung, Manfrets
Application Number:
JP2002534450A
Publication Date:
August 15, 2007
Filing Date:
October 09, 2001
Export Citation:
Assignee:
Element Six (Proprietary) Limited
International Classes:
C09K3/14; B22F1/02; B22F9/02; B24D3/00; B24D3/02; B24D3/06; B24D3/08; B24D3/10; B24D18/00; C22C26/00; B24D; C09K
Domestic Patent References:
| JP56054278A | ||||
| JP58120406A | ||||
| JP58199841A | ||||
| JP10121183A | ||||
| JP59016942A | ||||
| JP9221660A | ||||
| JP57039106A | ||||
| JP2167668A | ||||
| JP7205032A | ||||
| JP4139292A |
Foreign References:
| US4224380 |
Attorney, Agent or Firm:
Hideto Asamura
Hajime Asamura
Yukihiro Ikeda
Naganuma Akio
Hajime Asamura
Yukihiro Ikeda
Naganuma Akio