Title:
電着による希土類永久磁石材料の製造方法
Document Type and Number:
Japanese Patent JP6467499
Kind Code:
B2
Abstract:
The present invention discloses an electro-deposition process, an electro-deposition bath, and a method for preparing a rare earth permanent magnetic material through electro-deposition. The electro-deposition process is used for depositing a heavy rare earth element on the surface of a sintered R2-T-B type master alloy, and comprises Step 1: providing an electro-deposition bath, comprising a main salt containing the heavy rare earth element, an induction salt for inducing the heavy rare earth element to deposit, and an organic ionic liquid as the solvent, wherein the main salt is a tetrafluoroborate of the heavy rare earth element; and Step 2: electroplating the sintered R2-T-B type master alloy in the electro-deposition bath at a temperature of 0 to 200° C. The present invention has the following beneficial effects: deposition of the heavy rare earth element on the surface of the sintered R2-T-B type master alloy is rapid, so that the electro-deposition process time can be saved, and the production efficiency is improved. In addition, a higher plating thickness of up to 10 to 40 μm can be achieved.
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Inventors:
Chen Peng
Ginger
Ninghong
Ginger
Ninghong
Application Number:
JP2017510888A
Publication Date:
February 13, 2019
Filing Date:
July 20, 2016
Export Citation:
Assignee:
BEIJING ZHONG KE SAN HUAN HI-TECH CO.,LTD.
International Classes:
C25D7/00; C25D3/54; C25D5/50; H01F41/02
Domestic Patent References:
| JP2007288020A | ||||
| JP3024292A | ||||
| JP5217744A |
Foreign References:
| CN101538725A | ||||
| CN101509142A |
Attorney, Agent or Firm:
Cosmos International Patent and Trademark Office