Electron Beam Tungsten Filament Use
Featured with high temperature resistance, high corrosion resistance, and long lifetime, EB tungsten filament can be applied in aluminzing kinescope, chromoscope, mirrors, plastics and heater elements for coating article.
For example, electron beam tungsten filament with purity 99.95% min, density 19.25g/cm3, diameter 0.55mm, single strand and cleaned or electrolytic polished surface, are ideal material for optical coating.
From the alternative names for electron beam tungsten filament, such as EB tungsten cathode, or electron emitter, has shown electron beam tungsten filament use. EB tungsten filament use is for ion or electron beam emitter, and for coating by electric finally.
Related Products:
Tungsten is widely used as refractory metals. In wire form, tungsten wire is essential for the production of lighting products and other goods where its high temperature properties are of use.
Non-Sag tungsten wires are indispensable for the lighting industry. For the necessary creep resistance, large elongated grains are considered as the desired microstructure. These large grains are obtained by primary and secondary recrystallization. In secondary recrystallization, often called abnormal grain growth, a few of the grains grow massive.
Doped tungsten, also called non-sag tungsten, is a remarkable kind of dispersion strengthened material. The term non-sag refers to the resistance of the wire against deformation or sagging under its own weight at working temperature. The intentional simultaneous use of K-compounds, Si-compounds, and Al-compounds as dopes for tungsten is in order to obtain a well-defined internal interlocking structure.
Important applications of cleaned tungsten wire are for the production
of coiled incandescent lamp filaments, cathode and support structures for power tubes, heating elements for high temperature furnaces and
evaporation sources in metalizing processes. Thicker wire sizes,
straightened, finish-ground and cut into rod pieces are widely used for
glass-to-metal seal lead parts in the lighting and electronic industries.