METAL PARTICLE AND METHOD FOR PRODUCING THE SAME, COVERED METAL PARTICLE, AND METAL POWDER
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0 Petitions
Accused Products
Abstract
A metal particle having a particle diameter of 10 μm or more and 1000 μm or less and includes Cu and trace elements and a total mass content of P and S, among other trace elements, is 3 ppm or more and 30 ppm or less. A method for producing a metal particle including producing a molten metal material by melting a metal material in a crucible, wherein Cu as determined in GDMS analysis is over 99.995% and a total of P and S is 3 ppm or more and 30 ppm or less; applying a pressure of 0.05 MPa or more and 1.0 MPa or less to drip the molten metal material through an orifice, thereby producing a molten metal droplet; and rapidly solidifying the molten metal droplet using an inert gas whose oxygen concentration is 1000 ppm or less.
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Citations
14 Claims
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1-6. -6. (canceled)
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7. A metal particle having a particle diameter of 10 μ
- m or more and 1000 μ
m or less and including Cu and trace elements, wherein a Cu mass content as determined in GDMS analysis is over 99.995% and a total mass content of P and S, among other trace elements, is 3 ppm or more and 30 ppm or less. - View Dependent Claims (8, 9, 10, 11, 12)
- m or more and 1000 μ
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13. A method for producing a metal particle, the method comprising:
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a step a of producing a molten metal material by melting a metal material in a crucible, wherein a Cu mass content as determined in GDMS analysis of the metal material is over 99.995% and a total mass content of P and S of the metal material is 3 ppm or more and 30 ppm or less; a step b of applying a pressure of 0.05 MPa or more and 1.0 MPa or less to an inside of the crucible to drip the molten metal material through an orifice whose diameter is 5 μ
m or more and 1000 μ
m or less, thereby producing a molten metal droplet; anda step c of rapidly solidifying the molten metal droplet using an inert gas whose oxygen concentration is 1000 ppm or less, thereby producing a metal particle whose particle diameter is 10 μ
m or more and 1000 μ
m or less. - View Dependent Claims (14)
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Specification