SHELLING-RESISTANT ABRASIVE GRAIN, METHOD OF MAKING SAME, AND ABRASIVE PRODUCTS

Sintered ceramic abrasive grains having increased surface area are incorporated into improved "shelling-resistant" grinding wheels. The grinding wheels comprise a vitreous bond and abrasive grains in which a portion of said abrasive grains are alumina based ceramic particles made by a sol-...

Full description

Saved in:
Bibliographic Details
Main Authors WALD VERNON M, KIRK ROBERT S
Format Patent
LanguageEnglish
Published 28.03.1990
Subjects
ADHESIVES
ARTIFICIAL STONE
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS
CONCRETE
DYES
GRINDING
INORGANIC CHEMISTRY
LIME, MAGNESIA
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
PAINTS
PERFORMING OPERATIONS
POLISHES
POLISHING
REFRACTORIES
SLAG
TOOLS FOR GRINDING, BUFFING, OR SHARPENING
TRANSPORTING
TREATMENT OF NATURAL STONE
Online AccessGet full text

Cover

More Information
Summary:Sintered ceramic abrasive grains having increased surface area are incorporated into improved "shelling-resistant" grinding wheels. The grinding wheels comprise a vitreous bond and abrasive grains in which a portion of said abrasive grains are alumina based ceramic particles made by a sol-gel process. These alumina based ceramic abrasive grains are made by providing first particles comprising alpha-alumina precursor, introducing fine particles which can be sintered directly to the surface of the first particles upon sintering of the same, and heating the mixture of particles under sintering conditions to cause autogenous bonding of the fine particles to the surface of each of the first particles.
Bibliography:Application Number: CN19891007843