METODI PER PRODURRE MATERIALI GRANULARI DA STAMPAGGIO PER ARTICOLI ABRASIVI

Granular molding materials for fabricating abrasive articles, such as, for example, grinding wheels, are produced by mixing heated abrasive grains with a resin blend including two phenol-novolac resins. Preferably, the resin blend is added to the abrasive grains in the mixer apparatus of the inventi...

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Bibliographische Detailangaben
Hauptverfasser:	GOUTTE RENE, PELLERIN RAYMOND J, MCNAMARA JOHN P, HOLDEN ROBERT L, LEMBERGER MICHAEL J
Format:	Patent
Sprache:	ita
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON GENERAL PROCESSES OF COMPOUNDING GRINDING METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS POLISHING THEIR PREPARATION OR CHEMICAL WORKING-UP TOOLS FOR GRINDING, BUFFING, OR SHARPENING TRANSPORTING WORKING-UP
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Beschreibung
Zusammenfassung:	Granular molding materials for fabricating abrasive articles, such as, for example, grinding wheels, are produced by mixing heated abrasive grains with a resin blend including two phenol-novolac resins. Preferably, the resin blend is added to the abrasive grains in the mixer apparatus of the invention, which can be a bowl type mixer. The mixer can be preheated by directing a heated gas, such as air, across the mixer. The granular molding material can also include a curing agent, fillers and other materials generally employed in fabricating abrasive articles.