Abrasive tool making process – material – or composition – Pore forming
Patent
1990-09-25
1992-03-17
Dixon, Jr., William R.
Abrasive tool making process, material, or composition
Pore forming
51307, 51308, 51309, B24D 300
Patent
active
050964666
ABSTRACT:
A method of producing an abrasive roll comprises the steps of forming a mixture of substances such as abrasive grains, a bond, a temporary caking agent and a pore forming agent, molding the mixture into a body having a predetermined shape, and drying and then burning the body. The pore forming agent is constituted from a rice hull powder sieved to have a predetermined particle size, thereby enabling to produce an abrasive roll of high porosity which has pores having substantially ball-like shape and substantially uniform size and includes a bond having portions of high SiO.sub.2 concentration each adjacent to and surrounding one of the pores.
REFERENCES:
patent: 3416905 (1968-12-01), Waugh
patent: 4086067 (1975-04-01), Busch et al.
patent: 4494964 (1985-01-01), Ohlsson et al.
patent: 4997460 (1991-03-01), Satake et al.
Mesaki Takamasa
Satake Satoru
Satake Toshihiko
Dixon Jr. William R.
Satake Engineering Co. Ltd.
Thompson Willie J.
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