Tungsten foil

Tungsten foil is made of pure tungsten material, usually the thickness of 0.2mm thickness of the following products called tungsten foil, purity of more than 99.95, density of 19.3g/cm3, and the thickness is very thin. This sheet can be used to make electric light source parts and electric vacuum devices can also be used to make tungsten boats. At the same time, due to the rapid development of LED sapphire sheet, the wide use of tungsten thermal field, the amount of tungsten foil in the thermal field is also increasing, which can not only be used as a heat shield in the thermal field, but also can be used to make a heating body.

Classification:

Plate

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monfils.chen@mtwkj.com

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Product Description:

Powder metallurgy is the method of producing tungsten flakes, which are mainly rolled from tungsten plates. The density can also be increased by the rolling process.

Product use:

▲ As a heating element, due to its high thermal conductivity, it only needs to be energized and heated by resistance to heat up the LED sapphire sheet in the thermal field crucible.

▲ Another very important use of tungsten foil is to make tungsten targets. The reasons that affect the effect of the target are thickness, surface, thickness and grain direction. In general, the purity of the sheet used in the target material is above 99.90%, and the density is 19.2g/cm3. The surface of the target material can be rough and smooth, but the smooth surface is the final product. In order to achieve this surface, electrolytic polishing is the more commonly used production method. The tungsten foil film may also be prepared by chemical vapor deposition, physical vapor deposition, mechanical rolling, mechanical abrasive polishing, chemical polishing, and electrolytic polishing.