Method of continuously producing rapidly solidified powder
AssigneeAllied-Signal Inc.
InventorsRobert E. Hathaway, Edward M. Norin
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Abstract
A system is described for the production of rapidly solidified powder. The system contains elements for casting rapidly solidified ribbon, an in-line knife mill or a hammer mill for fracturing the rapidly solidified ribbon into shard, and either an in-line fluid energy mill, or an in-line centrifugal mill for reducing the shard to powder. The system can effectively reduce ribbon to powder in an in-line operation, and produce a powder with a particle size of -31 35 mesh. A method employing the system is also described.
Claims1
A method for continuously producing rapidly solidified powder, the method comprising the steps of:
- (a) casting liquid metal onto a rapidly moving chill surface to produce a rapidly solidified continuous ribbon;
- (b) continuously feeding said rapidly solidified continuous ribbon from said chill surface to means for forming shard;
- (c) forming shard from said rapidly solidified continuous ribbon;
- (d) continuously feeding said shard to means for producing powder;
- and,
- (e) forming powder from said shard.
Dependencies are inferred from the claim text.