Metal powder production apparatus
AssigneeSeiko Epson Corporation
InventorsYuki Kaneta, Toshiki Akazawa
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Abstract
A metal powder production apparatus includes a molten metal supply section which supplies a molten metal, a cylindrical body which includes an upper part placed on a lower side of the molten metal supply section and a lower part provided on a lower side of the upper part, a fluid jet section which jets a gas (fluid) toward the molten metal, and a cooling liquid outflow section which allows a cooling liquid to flow out along the inner circumferential surface of the upper part. In the metal powder production apparatus, an angle formed by the axial line of the upper part of the cylindrical body and the vertical line is 0° or more and 20° or less, and an angle formed by the axial line of the lower part of the cylindrical body and the vertical line is 0° or more and 20° or less.
Claims12
A metal powder production apparatus comprising:
- a molten metal supply configured to supply a molten metal;
- a fluid jet member configured to receive the molten metal from the molten metal supply, a bottom surface of the fluid jet member having a molten metal port and a plurality of fluid jet ports, the plurality of fluid jet ports being arranged relative to one another so as to circularly surround the molten metal port on the bottom surface in a plan view, each of the plurality of fluid jet ports jetting a fluid toward the molten metal exiting from the molten metal port;
- a cylindrical body that is provided to face the molten metal port and the plurality of fluid jet ports, the cylindrical body having an upper part and a lower part, the upper part being located closer to the fluid jet member than the lower part;
- and
- a cooling liquid outflow member configured to flow a cooling liquid along an inner circumferential surface of the upper part of the cylindrical body,
- wherein an angle formed by an axial line of the upper part of the cylindrical body and a vertical line is 0° or more and 20° or less, and an angle formed by an axial line of the lower part of the cylindrical body and the vertical line is 0° or more and 20° or less, and
- a minimum inner diameter of the lower part of the cylindrical body is 15% or more and 85% or less of an inner diameter of the upper part.
A metal powder production apparatus comprising:
- a molten metal supply configured to supply a molten metal;
- a cylindrical body which is placed on a lower side of the molten metal supply and includes a portion in which a spiral groove is formed on an inner circumferential surface of the cylindrical body;
- a fluid jet member configured to jet a fluid toward the molten metal supplied from the molten metal supply;
- and
- a cooling liquid outflow member configured to flow a cooling liquid along the inner circumferential surface of the cylindrical body,
- wherein an angle formed by an axial line of the cylindrical body and a vertical line is 0° or more and 20° or less, and
- the spiral groove and the cooling liquid outflow member are configured such that a rotation direction of an arbitrary object when the object moves by gravity along the spiral groove and a state where the object moves is viewed from a vertically upper side, and a rotation direction of the cooling liquid when a state where the cooling liquid flows along the inner circumferential surface of the cylindrical body is viewed from the vertically upper side are the same as each other.
Dependencies are inferred from the claim text.