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Tungsten powder supplier introduces the application overview of spherical tungsten powder

Tungsten powder supplier introduces the application overview of spherical tungsten powder

  • Categories:News
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  • Time of issue:2023-04-06 15:34
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(Summary description)Tungsten powder supplier will introduce to you: Due to the irregular shape of conventional tungsten powder particles, not only the fluidity is poor, but also the bulk density is small, which limits its application. In recent years, with the development of porous tungsten materials, thermal spraying and powder metallurgy injection molding technologies, the demand for spherical tungsten powder is increasing day by day.

Tungsten powder supplier introduces the application overview of spherical tungsten powder

(Summary description)Tungsten powder supplier will introduce to you: Due to the irregular shape of conventional tungsten powder particles, not only the fluidity is poor, but also the bulk density is small, which limits its application. In recent years, with the development of porous tungsten materials, thermal spraying and powder metallurgy injection molding technologies, the demand for spherical tungsten powder is increasing day by day.

  • Categories:News
  • Author:
  • Origin:
  • Time of issue:2023-04-06 15:34
  • Views:0
Information

Tungsten powder supplier will introduce to you: Due to the irregular shape of conventional tungsten powder particles, not only the fluidity is poor, but also the bulk density is small, which limits its application. In recent years, with the development of porous tungsten materials, thermal spraying and powder metallurgy injection molding technologies, the demand for spherical tungsten powder is increasing day by day.

Tungsten powder supplier

In the preparation of porous tungsten materials, the shape and size of tungsten powder will have a great impact on the pore structure of the porous tungsten matrix, which in turn affects the emission performance of the tungsten cathode. The porous tungsten matrix prepared by spherical dense tungsten powder can provide a uniform interconnected pore structure, which can provide sufficient storage space and migration channels for barium, which can effectively increase the emission current density, improve the performance of the entire cathode assembly, and promote Development of modern microwave electro-vacuum devices. When the regular and dense spherical tungsten powder is pressed and sintered into a porous tungsten matrix, the gaps formed between the spherical particles are not only related to each other, but also have sufficient void space, which can store more barium emitting materials.

Tungsten powder supplier tells you: When using irregular tungsten powder and sintering into a tungsten matrix, not only will some of the channels in the void be blocked, resulting in an open circuit for barium diffusion, reducing the storage space for barium, but also, small regular channels It may also affect the uniformity of the distribution of barium migrated to the surface, resulting in unstable electron emission. Therefore, spherical tungsten powder can replace conventional tungsten powder for making porous tungsten parts. Such as cathodes of high-power pulsed microwave tubes, barium-tungsten cathodes for electrons, sweating materials for rockets, catalysts or catalyst carriers, gas distribution plates at high temperatures, and gas filter materials.

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