PROCEDE DE FABRICATION D'ABRASIF ET COMPOSITION ABRASIVE

A process for forming an abrasive grain from a sol gel which contains aluminium oxide monohydrate, a dissolved metal containing sintering aid and from above about .05 to about 1.8 weight percent sodium plus calcium, provided that the weight percent calcium is from 0 to about 1.8 and the weight perce...

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Bibliographische Detailangaben
1. Verfasser:	ALVIN PHILLIP GERK ET ROBERT JACK SEIDER
Format:	Patent
Sprache:	fre
Schlagworte:	ADHESIVES CHEMISTRY COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS DYES GRINDING INORGANIC CHEMISTRY MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS PERFORMING OPERATIONS POLISHES POLISHING PREPARATION OF CARBON BLACK TOOLS FOR GRINDING, BUFFING, OR SHARPENING TRANSPORTING TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS,TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES
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Beschreibung
Zusammenfassung:	A process for forming an abrasive grain from a sol gel which contains aluminium oxide monohydrate, a dissolved metal containing sintering aid and from above about .05 to about 1.8 weight percent sodium plus calcium, provided that the weight percent calcium is from 0 to about 1.8 and the weight percent sodium is from 0 to about 4. The high sodium and calcium is permitted due to rapid heating of the sol gel after drying through a temperature range of from below about 800 DEG C to above about 1200 DEG C, prior to sintering the dried gel at a temperature above 1200 DEG C. A grain made by the process and coated, bonded and non-woven abrasive articles comprising the grain.