METHOD FOR PRODUCING METAL POWDER - SHOEI CHEMICAL IND CO

Title:

METHOD FOR PRODUCING METAL POWDER

Document Type and Number:

WIPO Patent Application WO/2018/092665

Kind Code:

A1

Abstract:

The purpose of this invention is to provide a method with which it is easy to produce, using atomized spray pyrolysis, a metal powder having a uniform and homogeneous vitreous thin film on the entire surface of the metal powder, without being unevenly coated on only part of the surface of the metal powder, regardless of the type of metal used. This method for producing metal powder is a method for producing a metal powder having a vitreous thin film on the surface thereof, and involves generating a vitreous substance near the surface of the metal powder by performing atomized spray pyrolysis on a liquid solution containing a heat-decomposable metal compound and a glass precursor that generates a vitreous substance that does not dissolve in the metal generated by the pyrolysis of the metal compound. The metal contains a base metal as the principal component thereof, and the liquid solution contains 5% to 30% by mass (with respect to the entirety of the liquid solution) of a reducing agent that exhibits reducing properties when heated, and which is soluble in the liquid solution.

Inventors:

IWASAKI MINETO (JP)
KIMURA TETSUYA (JP)

Application Number:

PCT/JP2017/040352

Publication Date:

May 24, 2018

Filing Date:

November 09, 2017

Export Citation:

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Assignee:

SHOEI CHEMICAL IND CO (JP)

International Classes:

B22F9/30; B22F1/16; B22F1/065

Domestic Patent References:

WO2005015581A1

2005-02-17

Foreign References:

JPH10330802A	1998-12-15
JPH11124602A	1999-05-11
JPH1171601A	1999-03-16
JP2007126750A	2007-05-24
JP4452240B2	2010-04-21
JP2014192454A	2014-10-06
JPH09256005A	1997-09-30
JP2003049203A	2003-02-21
JPS6331522B2	1988-06-24
JPH06172802A	1994-06-21
JPH06279816A	1994-10-04
JPH10330802A	1998-12-15
JP3206496B2	2001-09-10

Other References: