Method for making a spliceless coated abrasive belt

B - Operations – Transporting – 24 – D

Patent

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Details

B24D 18/00 (2006.01) B24D 3/28 (2006.01) B24D 11/00 (2006.01) B24D 11/06 (2006.01)

Patent

CA 2227518

A method of making a flexible coated abrasive belt comprising the steps of: mounting an endless, spliceless backing loop substrate having an exposed front surface and a back surface tautly on a peripheral surface of a temporary support structure; applying a continuous fibrous reinforcing material onto said front surface in a plurality of revolutions; applying a coating of a first binder precursor onto said front surface; exposing said coating to conditions effective to solidify said first binder precursor and bond said fibrous reinforcing material to said front surface to form an endless spliceless reinforced backing; and applying an abrasive coating comprising abrasive particles and adhesive over said back surface or said front surface of said endless spliceless reinforced backing.

La présente invention concerne un procédé de fabrication d'une bande abrasive souple, pourvue d'un revêtement. Ce procédé comprend les étapes suivantes: montage d'un substrat de support en boucle sans fin, sans raccord, présentant une surface avant visible et une surface arrière tendue sur la surface périphérique d'un support provisoire; mise en place d'une matière de renforcement fibreuse continue sur la surface avant, sur plusieurs tours; application d'un revêtement d'un premier précurseur de liant sur cette surface avant; exposition de ce revêtement à des conditions efficaces pour solidifier ce premier précurseur de liant et fixer la matière fibreuse de renforcement à la surface avant pour constituer un élément de soutien renforcé sans fin et sans raccord; application d'un revêtement abrasif, comprenant des particules abrasives et un adhésif, sur la surface arrière ou avant.

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