Abrasive articles comprising a blend of abrasive particles

Details Abrasive articles comprising a blend of abrasive particles Abrasive articles comprising a blend of abrasive particles

C - Chemistry, Metallurgy

09

K

C09K 3/14 (2006.01) B24D 3/00 (2006.01) B24D 5/12 (2006.01)

Patent

CA 2296522

The present invention provides an abrasive article, particularly a cut-off wheel, having a mixture of rare earth oxide modified abrasive grains and alpha alumina seeded or iron oxide nucleated abrasive grains. Preferably, the rare earth oxide is present at a level between about 0.1 wt.% to 10 wt.% of the abrasive grain, based on a theoretical oxide basis. In one embodiment, the rare earth oxide modified abrasive grains are rods.

Article abrasif, en particulier meule tronçonneuse, qui présente un mélange de grains abrasifs modifiés à l'oxyde de terre rare et de grains abrasifs ensemencés ou nucléés par des germes d'alumine alpha ou de l'oxyde de fer. De préférence, l'oxyde de terre rare est présent à une teneur située entre environ 0,1 % et 10 % en poids du grain abrasif, sur la base d'un oxyde théorique. Dans un mode de réalisation, les grains abrasifs modifiés à l'oxyde de terre rare sont des tiges.

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