Tungsten Heater and Tungsten Stranded Wire

Tungsten stranded wire is a kind of strip tungsten products made of a certain specification of diameter of a number of tungsten wire, which is mainly used to produce tungsten heater. In the vacuum coating, tungsten wire cutter is a consumable material. Now it is widely used in kinescope, mirror, mobile phones and all kinds of plastic, metal and organic substrates and various accessories and other surface spraying industry.

As the main raw material of tungsten heater, the quality of tungsten stranded wire will directly affect the quality of tungsten heater which will have a greater impact on the coating effect. Therefore, surface of stranded tungsten coil should be glossy silver color without any visible contamination, no and there are no obvious cracks and oxidation glitches on the surface. Each twisted tungsten wires cannot have any breakage, and the spiral coil should have flexibility to a certain extent. The deviation of size of a tungsten wire should be consistent with the secondary deviation of GB4181. The life of this tungsten product should be longer than 12 times during the deposition of aluminum.

Each package must be marked with a memo or a certificate of products, and indicates that the manufacturer's name, trademark, material’s name, batch number, specification, weight, date of manufacture, inspection department stamp. The wrapped Stranded tungsten wire should be placed in the room whose relative humidity is below 65%, and there is no acid and alkali gas. It is marked with the words "Handle with Care", "anti-moisture" and others while transport. And the cases should avoid the erosion of acid gases and snow damage.

Wolfram heater generally use grades HW41, HW42 tungsten wire as raw materials. The wolfram heater made by the professional equipment would have a high melting point, good corrosion resistance, long life time of deposition and other excellent characteristics.  

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