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Heat Resistance Tungsten Wire

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Heat Resistance Tungsten Wire is primarily used in the production of heated laminated glass for the automotive industry. The wire is embedded onto PVB sheets through localized heating and pressure, after which the prepared PVB sheets are assembled between bent glass layers to form the final laminated product. Thanks to its high-purity tungsten composition doped with K₂O, SiO₂, and Al₂O₃, as well as its graphite-coated matte black surface, the wire provides stable electrical resistance, excellent heat performance, and mechanical reliability, making it well suited for precision heating applications in automotive glass manufacturing.

    FeatureApplicationPhysical Properties

    Feature

    +

    High-purity tungsten wire (99.95% tungsten), doped with K₂O, SiO₂, and Al₂O₃, provides enhanced physical properties such as improved tear resistance, stable electrical resistivity, and controlled surface roughness. The surface is coated with a layer of graphite, giving the wire a matte black appearance.

    Application

    +

    The heat-resistant tungsten wires are designed for use in the production of heated laminated glass for the automotive market.

    • These tungsten wires are attached to PVB sheets through localized heating and pressure.

    • The prepared PVB sheets are then assembled within bent glass to create the final product.

    Physical properties

    +

    The electric resistance of the tungsten wire has a tolerance of +/-3 % of its nominal value. The resistance of the wire is defined as the resistance measured at 20 °C.

    Type Code

    Resistance
    ohm/m

    		 Wire Weight
    mg / 200mm     		Diameter
    μm     		Length by Spool Wire Aspect
    Mandatory Range Indicative Value Indicative Value Min. Max.  
    35 33,95 - 36,05         Matt black
    50 48,5 - 51,5         Matt black
    52 50,44 - 53,56         Matt black
    100 97 - 103 2,60 - 2,71 29 4000 15000 Matt black
    125 121,25 - 128,75 2,01 - 2,11 27 4000 15000 Matt black
    150 145,5 - 154,5 1,81 - 1,94 24 6000 15000 Matt black
    175 169,75 - 180,75         Matt black
    230 223,1 - 236,9 1,190 -1,285 19 6000 15000 Matt black
    280 271,6 - 288,4         Matt black

    OEM is acceptable