Title:
SPHERICAL AMORPHOUS ALLOY POWDER PREPARATION APPARATUS AND METHOD
Document Type and Number:
WIPO Patent Application WO/2021/139553
Kind Code:
A1
Abstract:
Disclosed is a spherical amorphous alloy powder preparation apparatus, comprising: a gas atomizer, used for breaking an alloy melt by means of an atomizing gas; a liquid cooling apparatus, located beneath the gas atomizer and arranged at the periphery of a gas flow nozzle of the gas atomizer, and used for cooling an alloy powder intermediate, obtained after the breaking by the gas atomizer, to form a spherical amorphous alloy powder. Also disclosed is a spherical amorphous alloy powder preparation method, comprising the following steps: S1: melting a raw material to obtain an alloy melt; S2: atomizing the alloy melt by means of an inert atomizing gas under a vacuum or an inert atmosphere to obtain an alloy powder intermediate; S3: feeding the alloy powder intermediate into a cooling area for cooling to obtain a spherical amorphous alloy powder. The preparation apparatus and preparation method obtain a spherical amorphous alloy powder having a more uniform particle size, a more regular spherical shape and a smaller oxygen content.
Inventors:
MENG LINGBING (CN)
JIANG ZHONGMIN (CN)
ZHAO TONGCHUN (CN)
MA HONGQIU (CN)
YU HAICHEN (CN)
JIANG ZHONGMIN (CN)
ZHAO TONGCHUN (CN)
MA HONGQIU (CN)
YU HAICHEN (CN)
Application Number:
PCT/CN2020/140078
Publication Date:
July 15, 2021
Filing Date:
December 28, 2020
Export Citation:
Assignee:
ADVANCED TECH BAZHOU SPECIAL POWDER CO LTD (CN)
International Classes:
C22C45/02; B22F1/00; B22F9/08; C22C38/02; C22C38/12; C22C38/16
Foreign References:
| CN111534765A | 2020-08-14 | |||
| CN111590083A | 2020-08-28 | |||
| JP2010007100A | 2010-01-14 | |||
| KR20170088317A | 2017-08-01 | |||
| CN104084596A | 2014-10-08 | |||
| CN107900364A | 2018-04-13 | |||
| CN104376950A | 2015-02-25 | |||
| CN107578877A | 2018-01-12 |
Other References:
ISAMU OTSUKA ET AL.: "Magnetic Properties Of Fe-Based Amorphous Powders With High-Saturation Induction Produced By Spinning Water Atomization Process (SWAP)", IEEE TRANSACTIONS ON MAGNETICS, vol. 44, no. 11, 30 November 2008 (2008-11-30), XP011240172, ISSN: 0018-9464, DOI: 10.1109/TMAG.2008.2002249
Attorney, Agent or Firm:
BEIJING WUZHOUYANGHE & PARTNERS (CN)
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