Title:
【発明の名称】成形研磨粒子およびその製造方法
Document Type and Number:
Japanese Patent JPH07509508
Kind Code:
A
Abstract:
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.
Inventors:
Berg, Todd A.
Lowen Horst, Don Lee Dee
Berg, James G
Leonardo, William Kay
Lowen Horst, Don Lee Dee
Berg, James G
Leonardo, William Kay
Application Number:
JP50399394A
Publication Date:
October 19, 1995
Filing Date:
June 16, 1993
Export Citation:
Assignee:
Minnesota Mining and Manufacturing Company
International Classes:
B24D3/06; B24D3/14; B24D11/00; B24D18/00; B24D3/00; C04B35/10; C04B35/111; C04B35/626; C09K3/14; (IPC1-7): C09K3/14; B24D3/00; C04B35/10; C04B35/626
Attorney, Agent or Firm:
Aoyama Ryo (2 outside people)