Plastic and nonmetallic article shaping or treating: processes – Vacuum treatment of work
Patent
1987-11-25
1989-05-23
Thurlow, Jeffery
Plastic and nonmetallic article shaping or treating: processes
Vacuum treatment of work
29608, 148101, 148105, 148302, 148306, 252 6254, 264109, 264123, 264236, 264DIG58, B29C 6724, H01F 108
Patent
active
048328910
ABSTRACT:
A method of making a bonded permanent magnet including the steps of dissolving, in a solvent, an uncured epoxy resin having an incorporated catalyst which is inactive at a temperature of about 120.degree. F. Particles of a rapidly quenched rare earth-iron-boron alloy are added to the epoxy resin solution. The solution with the particles are mixed at a temperature of about 120.degree. F. until the solvent is removed and the magnetic particles are substantially uniformly coated with the resin. The epoxy coated particles are then cold-pressed into a compact to form a magnet and the epoxy compact is then cured by heating.
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Eastman Kodak Company
Randall Robert L.
Tentoni Leo B.
Thurlow Jeffery
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