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1. AU2000015516 - Fan-like grinding wheel

Note: Texte fondé sur des processus automatiques de reconnaissance optique de caractères. Seule la version PDF a une valeur juridique

[ EN ]
Translation from the German language - 8
Patent Claims
1. Flap disc with a backing plate to whose peripheral zone laminae overlapping like a fan or roof tiles are attached, characterized in that the lamellae (10) consist of first lamellae (12), comprising a backing (14), a base bonding coat (15) applied to the backing, a layer of abrasive grain (16) deposited over the base bonding coat, and a size coat (18) over the layer of deposited abrasive grain (16), and second lamellae (20), consisting of a backing (22) and a layer (24) with active abrasive materials applied to the backing.
2.     Flap disc according to claim 1, characterized in that every (n+1)th lamella (10) (n = 2, 3, 4...) is formed as a first or second lamella (12 or 20).
3.     Flap disc according to claim 1, characterized in that alternating groups of first lamellae (12) and groups of second lamellae (20) are provided.
4.    Flap disc according to claim 3, characterized in that the number of lamellae per group is equal or different.
5.    Flap disc according to claim 1, characterized in that the size coat (18) of the first lamellae (12) is provided with active abrasive materials.
6.    Flap disc according to claim 1 or 5, characterized in that the active abrasive materials consist of potassium fluoroborate, cryolite, calcium fluoride or chiolite.
Translation from the German language - 9
7.           Flap disc according to one of the preceding claims, characterized in that the abrasive grain of the flap disc consists of zirconia alumina or sintered aluminium oxide or a mixture of the two.