Gold Member Since 2016
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Xiamen Sinto Metal Component Co., Ltd.

Electron Beam, Ion Beam Filaments, Filament manufacturer / supplier in China, offering Electron and Ion Beam Filaments, Vacuum Coating Tungsten Coil, Tungsten Heater for Metallizing and Vacumum Coating and so on.

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Supplier Homepage Product Tungsten Electron and Ion Beam Filaments

Electron and Ion Beam Filaments

FOB Price: Get Latest Price
Min. Order: 500 Pieces
Transport Package: Plastic Bag & Wooden Cartoon
Payment Terms: T/T
Basic Info
  • Application: Aviation, Industrial, Chemical
  • Purity: >99.95%
  • Shape: Oval
  • Trademark: SINTO
  • Origin: China
  • Standard: ASTM
  • Alloy: Non-alloy
  • Type: Tungsten Wire
  • Specification: dia 0.5~1.0mm
Product Description
Evaporation takes place under vacuum, typically 10E-5 or deeper. A current (5 to 10 kV) is sent through a tungsten filament and heats it to the point where thermionic emission of electrons takes place. The filament is located in an area outside thedeposition zone, in order to avoid contamination. The electrons are focused and directed toward the evaporant by means of permanent magnets or electromagnets.
Electron and Ion Beam Filaments

As the electron beam hits the surface of the evaporant, the kinetic energy of its motion is transformed to heat via the impact. While the energy given off by a single electron is small, there are lots of them. The overall energy released is quite high - often more than several million watts per square inch. Compare that to the heat given off by a 100 watt bulb and it is easy to understand that the hearth which holds the evaporant must bewater-cooled to keep from melting.
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