Title:
METAL PARTICLES, METHOD FOR MANUFACTURING SAME, COATED METAL PARTICLES, AND METAL POWDER
Document Type and Number:
WIPO Patent Application WO/2016/170904
Kind Code:
A1
Abstract:
Provided are metal particles configured from Cu and trace elements, in which the grain diameter of the particles is 10-1,000 μm, the mass ratio of Cu as measured by GDMS analysis exceeds 99.995%, and the total mass ratio of P and S among the trace elements is 3-30 ppm. Also provided is manufacturing method including: a step for melting, in a crucible, a metal material in which Cu exceeds 99.995% as measured by GDMS analysis and the total of P and S is 3-30 ppm to produce a molten metal material; a step for applying a pressure of 0.05-1.0 MPa inside the crucible, and dropping the molten metal material from an orifice 5-1,000 μm in diameter, to produce molten metal droplets; and a step for rapidly solidifying the molten metal droplets in an inert gas having an oxygen concentration of 1,000 ppm or less to produce metal particles having a grain diameter of 10-1,000 μm.
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Inventors:
WAKANO MOTOKI
Application Number:
PCT/JP2016/059248
Publication Date:
October 27, 2016
Filing Date:
March 23, 2016
Export Citation:
Assignee:
HITACHI METALS LTD (JP)
International Classes:
B22F1/16; B22F1/17; B22F9/08; B23K35/14; C22C9/00
Foreign References:
| JP2013513032A | 2013-04-18 | |||
| JPH07166273A | 1995-06-27 | |||
| JPH117830A | 1999-01-12 | |||
| JP2009074152A | 2009-04-09 | |||
| JP5447745B1 | 2014-03-19 | |||
| JP5590259B1 | 2014-09-17 | |||
| JP5585751B1 | 2014-09-10 | |||
| JP5846341B1 | 2016-01-20 |
Attorney, Agent or Firm:
OKUDA SEIJI (JP)
Seiji Okuda (JP)
Seiji Okuda (JP)
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