Method of making aggregated diamond abrasive particles

Details Method of making aggregated diamond abrasive particles Method of making aggregated diamond abrasive particles

C - Chemistry, Metallurgy

09

K

57/16

C09K 3/14 (2006.01) B24D 3/28 (2006.01) C04B 35/52 (2006.01) C22C 26/00 (2006.01)

Patent

CA 1134623

ABSTRACT OF DISCLOSURE A method of making aggregated diamond abrasive particles comprising forming a mixture of diamond abrasive particles and a powdered metal, heating the mixture to sinter the metal followed by cooling to produce a mass and crushing the mass to obtain the aggregated particles, characterised in that the particles are selected from Types A, B and C, as hereinafter defined, and mixtures thereof: Particles of Type A have the following characteristics: 1. A Friatest Index of about 70 to 90 for those particles of size 74 to 88 microns. 2. Medium metal content. 3. Predominantly translucent colour with the occasional transparent white, grey and yellow particle. 4. Predominantly blocky shape tending towards elongate particles. 5. Predominantly rough and undulating surface.

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