Title:
METHOD FOR MANUFACTURING SPHERICAL PARTICLE MATERIAL
Document Type and Number:
WIPO Patent Application WO/2023/176812
Kind Code:
A1
Abstract:
The present invention addresses the problem to be solved of providing a method for manufacturing a spherical particle material by a melting method, the manufacturing method being capable of enhancing a melting spheroidization ratio more than conventional methods. For raw material subjected to a melting method, it has been found that the powder compressibility evaluation FF value from a powder rheometer correlates with the level of the melting spheroidization ratio, and the following invention has been completed accordingly. The method for manufacturing a spherical particle material according to the present invention to solve the above problem involves a raw particle material preparation step for preparing a raw particle material formed from an inorganic material, and a spheroidization step for placing the raw particle material in a high-temperature atmosphere to melt same and then quickly cooling same to prepare a spherical particle material with a volume average particle diameter of 1 μm or more and less than 10 μm, wherein the raw particle material has a powder compressibility evaluation FF value from a powder rheometer of 2.0 or more.
Inventors:
MATSUE IKUYA (JP)
NAKAMURA TEMPO (JP)
NAKAMURA TEMPO (JP)
Application Number:
PCT/JP2023/009789
Publication Date:
September 21, 2023
Filing Date:
March 14, 2023
Export Citation:
Assignee:
ADMATECHS CO LTD (JP)
International Classes:
B01J2/16; C01F7/027
Domestic Patent References:
| WO2014142019A1 | 2014-09-18 | |||
| WO2022065387A1 | 2022-03-31 |
Foreign References:
| JP2021038125A | 2021-03-11 | |||
| JP2004037159A | 2004-02-05 | |||
| JP2016073919A | 2016-05-12 | |||
| JP2019182714A | 2019-10-24 | |||
| JP2013035751A | 2013-02-21 |
Other References:
SHIMADA YASUHIRO, HATANO SHIGENOBU, MATSUSAKA SHUJI: "A New Method for Evaluating Powder Flowability Using Constant Volume Shear Tester", FUNTAI-KōGAKKAI-SHI = JOURNAL OF THE SOCIETY OF POWDER TECHNOLOGY, JAPAN, FUNTAI KOGAKKAI (SOCIETY OF POWDER TECHNOLOGY), KYOTO, vol. 54, no. 2, 1 January 2017 (2017-01-01), Kyoto , pages 90 - 96, XP093091752, ISSN: 0386-6157, DOI: 10.4164/sptj.54.90
Attorney, Agent or Firm:
KYORITSU INTERNATIONAL (JP)
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