Tungsten Filament

Tungsten filament is no doubt the key component of the incandescent lamp business.

tungsten filament

tungsten filament

The tungsten filament of a vacuum incandescent lamp is heated to temperatures where visible light is emitted by resistance heating. Tungsten filament acts as an electrical resistor, which dissipates power proportional to the voltage applied, times the current through the filament. When that power level is sufficient to raise the temperature to above 1000 degrees Kelvin, visible light is produced.

The tungstenfilament is quite sturdy and provides stable and uniform electron emission, primarily used in scanning electron microscopy. Custom tungsten filament cathodes in a variety of filament sizes and configurations and a variety of glass or ceramic bases are available. Some combinations of various options may not be possible due to design considerations. All tungsten cathodes are shipped pre-fired, vacuum clean, and ready to install.

If there is any interest in tungsten wire, please feel free to contact us through the following methods.
Email: sales@chinatungsten.com
Tel.: +86 592 512 9696/+86 592 512 9595/+86 592 512 7878
Fax:+86 592 512 9797

More info>>

1.Catalog of tungsten wire
2.Quotation table of tungsten wire