发明名称 |
SHAPED ABRASIVE PARTICLES AND METHOD OF MAKING SAME |
摘要 |
A method of making abrasive particles having a specified shape and abrasive articles containing abrasive particles having a specified shape. The method for preparing such an abrasive particle comprises the steps of: (a) providing a dispersion containing particles of a precursor of alpha alumina, preferably particles of alpha alumina monohydrate, in a liquid, which liquid comprises a volatile component; (b) providing a mold having a first surface and a second surface opposed to said first surface, said first surface having an opening to a mold cavity having a specified shape; (c) introducing the dispersion into said mold cavity; (d) removing a sufficient portion of the volatile component of the liquid from the dispersion while the dispersion is in the mold cavity, to form a precursor of an abrasive particle having approximately the same shape as the shape of the recess of the mold cavity; (e) removing the precursor of the abrasive particle from the recess of the mold; (f) calcining the removed precursor of the abrasive particle; and (g) sintering the calcined precursor to form the desired abrasive particle.
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申请公布号 |
CA2137667(A1) |
申请公布日期 |
1994.02.03 |
申请号 |
CA19932137667 |
申请日期 |
1993.06.16 |
申请人 |
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发明人 |
BERG, TODD A.;ROWENHORST, DONLEY D.;BERG, JAMES G.;LEONARD, WILLIAM K. |
分类号 |
B24D3/00;B24D3/06;B24D3/14;B24D11/00;B24D18/00;C04B35/10;C04B35/111;C04B35/626;C09K3/14;(IPC1-7):C04B35/60 |
主分类号 |
B24D3/00 |
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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