Device and method for preparing spherical titanium powder and titanium alloy powder through gas atomization

Abstract

The invention relates to a device and method for preparing spherical titanium powder and titanium alloy powder through gas atomization, which belongs to the field of powder metallurgy industry. The device comprises a vacuum chamber, a continuous feeder for titanium or titanium alloy wires / rods is arranged outside the vacuum chamber, a dynamic sealing device is arranged at the top of the vacuum chamber, a metal straightening device is arranged inside the vacuum chamber, an atomizing chamber is arranged below the vacuum chamber, a gas atomization nozzle is installed between the atomizing chamber and the vacuum chamber, the center hole of the nozzle is internally provided with a wire / rod guiding device, a high-frequency smelting coil is installed below the nozzle, wherein the dynamic sealing device, the straightening device, the guiding device and the high-frequency smelting coil are installed on the same axis; a heat dissipation cover is installed inside the atomizing chamber, a protective cover is arranged at the top of the heat dissipation cover, and the centers of the heat dissipation cover and protective cover and the center of the high-frequency smelting coil are on the same axis; a powder collecting pot is arranged below the atomizing chamber. By means of controlling the diameters of the wires, the atomizing gas pressure and the power of a high-frequency power supply, titanium and titanium alloy powder with different particle sizes and particle size distributions can be obtained.

Description

technical field

[0001] The invention relates to a device and method for preparing spherical titanium powder and titanium alloy powder by gas atomization, and belongs to the technical field of powder metallurgy industry. Background technique

[0002] Titanium and titanium alloys have the advantages of low density, high specific strength and excellent corrosion resistance, and are widely used in military sectors such as aviation and aerospace, as well as civilian sectors such as chemical industry, metallurgy, light industry, and biomedicine. However, the processing and production process of titanium materials is complicated, the yield of finished products is low, and a large amount of residual titanium is produced in the production process. Using titanium to manufacture equipment or parts not only produces a large amount of residual titanium again, but also increases the manufacturing cost of titanium equipment and parts due to the difficulty of processing and welding, which c...

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