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US 11,141,788 B2Granted
Method for manufacturing single-pole only usable magnet
AssigneeDae Han Special Metal Ind Co., Ltd.
InventorJun-Bum An
Life of this patent
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Abstract
Provided is a method of manufacturing a magnet capable of using only a single pole, whereby a combination force between a permanent (or referred to as a magnet) and a yoke (or referred to as a shielding metal) can be improved without performing a manual bonding work therebetween and then the efficiency of subsequent processes, such as polishing and plating, after combination and completeness of a product can be improved.
Claims3
A method of manufacturing a magnet capable of using only a single pole, the method comprising:
- (a) forming a green compact having an oriented powder by magnetically pressing an alloy powder for manufacturing a magnet;
- (b) placing an iron-based metal powder for manufacturing a shielding metal so that at least one surface of the green compact is exposed and the remaining surfaces of the green compact are surrounded;
- (c) forming a compression molded body by mechanically pressing a resultant structure of (b);
- and
- (d) forming a sintered body by sintering the compression molded body.
2 more elements
Dependencies are inferred from the claim text.