Abrasive roll and method of producing the same

Abrasive tool making process – material – or composition – Pore forming

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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.

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