Patent ID: 7241324
Filing Date: 2007-07-10
Classification: B01J,B24D,C04B,C09K

Abstract:
1. A method of producing abrasive tools with abrasive particles consisting of Al 2 O 3 , comprising the steps of producing a mixture of initial components with particles of Al(OH) 3 ; forming blanks of an abrasive tool from the mixture of the initial components with the particles of Al(OH) 3 ; subsequently producing the abrasive tools with the abrasive particles of Al 2 O 3 by subjecting the blanks to a heat treatment such that the particles of Al(OH) 3 are converted into the abrasive particles of Al 2 O 3 in the tools, wherein said forming includes rolling a sheet from the mixture of the initial components with the particles of Al(OH) 3 before the heat treatment and conversion of the particles of Al(OH) 3 into the abrasive particles of Al 2 O 3 which particles of Al(OH) 3 are softer than the abrasive particles of Al 2 O 3 and therefore do not damage a rolling equipment; and thereafter separating the blanks of the abrasive tools from the sheet for the subjecting to the heat treatment; and using as the initial components a base of butadienenytril rubber, a curing agent of sulfur, a softener of dibutylphthalate, polyvinyl chloride, hardener, phenolic resin with the particles of Al(OH) 3 .