Rigid or flexible, macro-porous abrasive article

B - Operations – Transporting – 24 – D

Patent

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Details

B24D 3/34 (2006.01) B24D 3/26 (2006.01) B24D 18/00 (2006.01)

Patent

CA 2747634

A macro-porous abrasive article includes a spun lace substrate having a macro- porous structure and a coating. The coating is made of a resin binder and abrasive aggregates. The abrasive aggregates are formed from a composition of abrasive grit particles and a nanoparticle binder. The coating is at least partially embedded in the substrate. A method for making the macroporous abrasive article includes combining abrasive aggregates of abrasive grit particles and a nanoparticle binder with a resin binder to form a slurry. The slurry is applied to a macro-porous support structure so that the slurry at least partially penetrates the substrate. The resin is then cured to bond the aggregate grains to the substrate.

L'invention concerne un article abrasif macroporeux, qui comprend un substrat lacé par filage ayant une structure macroporeuse et un revêtement. Le revêtement est constitué d'un liant à base de résine et d'agrégats abrasifs. Les agrégats abrasifs sont formés à partir d'une composition de particules abrasives et d'un liant nanoparticulaire. Le revêtement est au moins partiellement incorporé dans le substrat. Un procédé de fabrication de l'article abrasif macroporeux comprend la combinaison d'agrégats abrasifs de particules abrasives et d'un liant nanoparticulaire avec un liant à base de résine pour former une pâte. La pâte est appliquée sur une structure support macroporeuse de manière à ce que la pâte pénètre au moins partiellement dans le substrat. La résine est ensuite durcie pour relier les grains de l'agrégat au substrat.

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