According to China Tungsten Online, tungsten wire is a fine wire made from tungsten rods through forging and drawing. It has high melting point, high tensile strength, high resistivity, low vapor pressure, slow evaporation rate, and resistance to high temperatures, wear, and acids and bases. It can be used not only as a filament for electric light sources in the lighting field but also as a bus wire for diamond wire in the photovoltaic field.
Compared with carbon steel bus wire, the advantages of tungsten bus wire include: firstly, at the same wire diameter, tungsten wire has higher tensile strength and better fatigue resistance, making it less prone to breakage; secondly, under the same mechanical properties, tungsten wire has more room for thinning; thirdly, tungsten wire has better acid and alkali resistance and oxidation resistance, allowing for longer usage.
As the photovoltaic and semiconductor industries continuously raise their requirements for silicon wafer quality, silicon wafers are accelerating towards “larger size” and “thinner” directions. In this context, tungsten wire diamond wire, with its excellent physical properties—high strength, low breakage rate, and high precision cutting ability—has become the preferred choice for cutting silicon wafers in the photovoltaic and semiconductor fields
