发明名称 |
POLYCRYSTALLINE ABRASIVE GRIT |
摘要 |
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. |
申请公布号 |
WO0231078(A2) |
申请公布日期 |
2002.04.18 |
申请号 |
WO2001IB01875 |
申请日期 |
2001.10.09 |
申请人 |
DE BEERS INDUSTRIAL DIAMONDS (PROPRIETARY) LIMITED;FRIES, ROBERT;SIGALAS, IACOVOS;NEBELUNG, MANFRED |
发明人 |
FRIES, ROBERT;SIGALAS, IACOVOS;NEBELUNG, MANFRED |
分类号 |
B22F1/02;B22F9/02;B24D;B24D3/00;B24D3/02;B24D3/06;B24D3/08;B24D3/10;B24D18/00;C09K;C09K3/14;C22C26/00 |
主分类号 |
B22F1/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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