Metal founding – Means to shape metallic material – Continuous or semicontinuous casting
Reexamination Certificate
2005-05-17
2005-05-17
Sheehan, John P (Department: 1742)
Metal founding
Means to shape metallic material
Continuous or semicontinuous casting
C164S427000, C164S443000
Reexamination Certificate
active
06892792
ABSTRACT:
Disclosed herein is a cooling roll which can provide bonded a magnet having excellent magnetic properties and having excellent reliability. A melt spinning apparatus1is provided with a tube2having a nozzle3at the bottom thereof, a coil4for heating the tube and a cooling roll5having a circumferential surface53in which gas expelling grooves54are formed. A melt spun ribbon8is formed by injecting the molten alloy6from the nozzle6so as to be collided with the circumferential surface53of the cooling roll5, so that the molten alloy6is cooled and then solidified. In this process, gas is likely to enter between a puddle7of the molten alloy6and the circumferential surface53, but such gas is expelled by means of the gas expelling grooves54.
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Patent Abstracts of Japan; Publication No. 2000077219; Filed Aug. 27, 1998; English Abstract of JP 10242353.
Arai Akira
Kato Hiroshi
Harness & Dickey & Pierce P.L.C.
Seiko Epson Corporation
Sheehan John P
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