Tungsten wire is used as electrode wire in copy machines. The main type used is gold-plated tungsten wire, which means the tungsten wire is coated with a layer of gold plating. This tungsten wire is a special tungsten wire. The gold plating is mainly to prevent corrosion. In a superficial sense, gold-plated tungsten wire becomes more beautiful, and the surface is brighter than black tungsten wire, white tungsten wire and spray-coated tungsten wire. In a deeper sense, the corrosion resistance of gold-plated tungsten wire is much higher than that of ordinary tungsten wire. The surface is golden and shiny, and has excellent properties such as high temperature resistance, corrosion resistance, high melting point, and low thermal expansion coefficient. In addition to being used as electrodes in copy machines, gold-plated tungsten wire can also be used as an ideal corrosion-resistant electron emission material and can be widely used in scientific research fields such as high-energy physics and meteorology.
Main Specifications
1. Base material: Φ0.025～0.15mm, length ≥200mm ultra-fine high-strength tungsten wire;
2. Deposit a 1-3μm uniform gold layer on the surface of the tungsten wire;
3. The cross-sectional ovality of the gold-plated metal wire is ΦA±0.001mm;
4. The bonding force between the coating and the substrate: in high and low temperature environments (-20°C ~ +200°C), the coating will not fall off after 20 temperature changes.
