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Method for manufacturing metallic partiless and its device manufactured metallic partiles

A technology of metal microparticles and a manufacturing method, applied in the field of metal microparticles

Inactive Publication Date: 2004-05-19
PHITEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0014] In order to achieve the above-mentioned purpose, the inventors of this case made various reviews on the manufacture of elemental metal powders such as titanium powder, in order to solve the problems of the purity of elemental metals, the uniformity of powder spherical shape, the uniformity of particle size, and the manufacturing cost.

Method used

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  • Method for manufacturing metallic partiless and its device manufactured metallic partiles
  • Method for manufacturing metallic partiless and its device manufactured metallic partiles
  • Method for manufacturing metallic partiless and its device manufactured metallic partiles

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Embodiment Construction

[0058] Hereinafter, the production of metal titanium powder is taken as an example for an explanation, but the present invention is not limited to the production of titanium powder.

[0059] First, according to the present invention, in the pressure-resistant container for producing metal titanium powder, purified water such as distilled water and inert gas such as argon are injected into a high-pressure water storage tank and pressurized under high pressure, and metal such as metal titanium rods are supplied from the raw material supply part of the metal element. Titanium raw materials, inject oxygen and hydrogen from the nozzle as a mixed gas, ignite the mixed gas, completely burn the mixed gas in the combustion chamber, and become a completely ultra-high temperature steam gas combustion state, and instantly melt the titanium raw material in the combustion gas, Disperse it in water. At this time, because the combustion environment is full of inert gas, the titanium droplets p...

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Abstract

Produce metal particles offering high purity and uniform granular shape and size: by forming a combustion chamber comprising an injector nozzle for mixture gas of oxygen and hydrogen, an ignition device and a material metal feeder in the upper space of a high-pressure water tank filled with inert gas; igniting inside the combustion chamber via the ignition device the injector nozzle for mixture gas of oxygen and hydrogen and melting (vaporize) the material fed by the material metal feeder; and then causing the produced molten metal droplets to contact high-pressure water and let the resulting metallic particles to precipitate in water.

Description

technical field [0001] The present invention relates to a method for producing high-purity metal microparticles with uniform powder shape and particle size and a device for the obtained metal microparticles. In addition, as the metal fine particles of the present invention, especially titanium fine particles are produced. Background technique [0002] Elemental metal raw materials can be processed into various forms for application, such as molded products, plates, rods, thin wires or foils. Recently, elemental metals are processed by powder metallurgy and spray methods. The metal powder used attracts attention. In particular, the powder metallurgy method has been widely used in the manufacture of mechanical parts, so it has received considerable attention, which naturally means that the demand for its raw material - metal powder has increased significantly. [0003] Conventionally, metal powders are manufactured in the classical way of grinding metal particles by machines...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22F9/02B22F9/08
CPCB22F2009/084B22F9/02B22F9/08B22F9/082B22F2009/086B22F2009/0848
Inventor 平田好宏上田善雄高濑浩明铃木一彰
Owner PHITEN