Grinding disk
AssigneeTyrolit Schleifmittelwerke Swarovski K.G.
InventorsWalter Waizer, Harald Helletsberger, Christof Kriegshaber, Volker Selgrad
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Abstract
An abrasive disk comprising abrasive grains such as corundum, a bonding material, for example a resin, and a filler material. At least part of the filler material is active in the grinding process. Particles of this filler material are provided in the disk in the form of pellets or granules. The pellets and granules preferably consist of more than one substance. One substance forms a matrix and at least one other substance is imbedded in said matrix.
Claims23
An abrasive article comprising abrasive grains, a bonding agent and pellets, wherein said pellets comprise (1) a bonding agent, (2) a matrix of at least one stable pulverulent filler resistant to water and air and to temperatures below the abrasive article manufacturing temperature, selected from the group consisting of graphite, pyrite, potassium, fluoborate, zinc sulfide, cryolite, calcium fluoride and sodium chiolite, and (3) at least one active filler imbedded in said matrix, selected from the group consisting of an alkali metal halogenide, an alkaline earth metal halogenide, elemental sulfur, ferric chloride, zinc chloride, tin chloride, manganese chloride, AlCl.sub.3, CoCl.sub.3, CrCl.sub.3, FeCl.sub.2 and NH.sub.4 Cl.
Dependencies are inferred from the claim text.