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Stranded Tungsten Wire For Vacuum Metallizing

Short Description:

The tungsten boats, baskets and filaments are manufactured from high grade tungsten. Of all metals in pure form, tungsten has the highest melting point (3422°C / 6192°F), the lowest vapor pressure at temperatures above 1650°C (3000°F) and has the highest tensile strength. Tungsten also has the lowest coefficient of thermal expansion of any pure metal. This combination of properties makes tungsten the ideal material for evaporation sources. During evaporation, it can alloy with some materials such as Al or Au. In this case, another evaporation source material should be used such as alumina coated boats or baskets. Other materials useful for evaporation sources are molybdenum and tantalum.


Product Detail

Product Tags

Type and Size

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3-Strand Tungsten FilamentVacuum grade tungsten wire, 0.5mm (0.020") diameter, 89mm long (3-3/8"). The "V" is 12.7mm (1/2") deep, and has an included angle of 45°.

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3-Strand, Tungsten Filament, 4 Coils3 x 0.025" (0.635mm) diameter, 4 coils, 4" L (101.6mm), coil length 1-3/4" (44.45mm), 3/16" (4.8mm) ID of coil
Settings: 3.43V/49A/168W for 1800°C
 wps_doc_3 3-Strand, Tungsten Filament, 10 Coils3 x 0.025" (0.635mm) diameter, 10 coils, 5" L (127mm), coil length 2" (50.8mm), 1/4" (6.35mm) ID of coil.
Settings: 8.05V/45A/362W for 1800°C
 wps_doc_2 3-Strand Tungsten Filament, 6 Coils3 x 0.020" (0.51mm) diameter, 6 coils, 2" L (5cm), coil length 3/4" (19.1 mm), 1/8" (3.2mm) ID of coil. For use with the Cressington 208C and 308R metal evaporation accessory.

Features

High melting point and high corrosion resistance

Long life

Purity:99.95% Min. W

Stranded tungsten wire is applied for making heater elements and other heater components in semicomductou and vacuum devices.

Stranded tungsten wire is applied as evaporator(heating element) in the vacuum metallizing(evaporation).

Applications

Heating Resistors are used as heating components to plate the substrates of kinescope,mirrors,plastics,metal and various decorations.Stranded wires are used as raw material of heating elements,and also as heating components of semiconductors and vacuum devices directly.


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