Title:
POWDER SURFACE FILM-FORMING DEVICE, AND METHOD FOR PRODUCING COATED POWDER
Document Type and Number:
WIPO Patent Application WO/2024/024343
Kind Code:
A1
Abstract:
The present disclosure provides a powder surface film-forming device, which makes it possible to reduce the aggregation of a powder by disintegrating aggregates of the powder at a proper timing during the delivery of the powder when the formation of a film on the surfaces of the powder is performed by a dry-mode process and, as a result, enables the formation of a film having a uniform thickness on the surface of each particle of a raw material powder, and can achieve satisfactory adhesion efficiency of a thin film. The powder surface film-forming device 100 is provided with a powder delivery mechanism 3 which has delivery passages 8-2 to 8-5 for a powder 15, film formation units 6-1 to 6-4 which are respectively arranged at positions respectively facing passage surfaces of the delivery passages and in which a portion of each of the passage surfaces serves as a film formation area, disintegration mechanisms 2-1 to 2-3 which are used for disintegrating aggregates of the powder, and a relay mechanism 2 which delivers the powder from the delivery passages to the disintegration mechanisms and transfers the disintegrated powder to another delivery passage, in which the delivery passages and the relay mechanism together constitute a single circulation passage 16 and repeatedly perform the formation of a film on the surface of each particle of the powder and the disintegration of the aggregates of the powder during circulating delivery of the powder through the circulation passages.
Inventors:
IMAKAWA MAKOTO (JP)
MARUKO TOMOHIRO (JP)
MIYAZAWA TOMOAKI (JP)
ANO GENKI (JP)
HARAGUCHI MASAHARU (JP)
MARUKO TOMOHIRO (JP)
MIYAZAWA TOMOAKI (JP)
ANO GENKI (JP)
HARAGUCHI MASAHARU (JP)
Application Number:
PCT/JP2023/022907
Publication Date:
February 01, 2024
Filing Date:
June 21, 2023
Export Citation:
Assignee:
FURUYA METAL CO LTD (JP)
International Classes:
C23C14/14; C23C14/08
Foreign References:
| JPS62250172A | 1987-10-31 | |||
| US20200407846A1 | 2020-12-31 | |||
| JP2022008248A | 2022-01-13 |
Attorney, Agent or Firm:
IMASHITA, Katsuhiro et al. (JP)
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