Method of manufacturing a permanent magnet using kinetic spray

• Main Authors: GINDER JOHN MATTHEW, MCCUNE ROBERT CORBLY, LEONARDI FRANCO
• Format: Patent
• Language: English
• Published: 10.08.2004
• Edition: 7
• Subjects: APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL; BASIC ELECTRIC ELEMENTS; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DYNAMO-ELECTRIC MACHINES; ELECTRICITY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERATION; INDUCTANCES; MAGNETS; PERFORMING OPERATIONS; PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES; SPRAYING OR ATOMISING IN GENERAL; TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION; TECHNICAL SUBJECTS COVERED BY FORMER USPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TRANSFORMERS; TRANSPORTING

A method of manufacturing a permanent magnet by the steps of preparing an admixture of magnetic material and binder material, the admixture material having a particle size of less than 325 mesh. Then heating a carrier gas to a temperature substantially below the melting point of either component of the admixture. The admixture is introduced into the carrier gas and the admixture is sprayed atop a ductile carrier. The admixture adheres to the carrier and forms a solid permanent magnet. An electric field is applied to the sprayed admixture to create a permanent magnetic moment.