The surface finish of tungsten wire has a significant effect on its performance, which is mainly reflected in the following aspects:
- Conductive performance
Tungsten wire with high surface finish has fewer surface defects, and the scattering and obstruction of electrons during transmission will also be reduced accordingly, which helps to improve the conductive performance of tungsten wire. Especially in applications that require high conductivity, such as electronic devices, electrodes, etc., the effect of surface finish is particularly significant.
- Heat resistance
When tungsten wire works in a high temperature environment, the surface finish will also affect its heat resistance. The surface of tungsten wire with high finish is smoother, which reduces the contact area with the surrounding environment, thereby reducing heat loss and oxidation rate. In addition, the smooth surface also helps to reduce thermal stress concentration and improve the stability and durability of tungsten wire at high temperatures.
- Mechanical properties
Surface finish also has an important influence on the mechanical properties of tungsten wire. Tungsten wire with high finish has fewer surface defects and is less likely to have problems such as cracks and fractures. At the same time, the smooth surface also helps to reduce friction and wear and extend the service life of tungsten wire. Especially in applications that need to withstand high stress or high wear, such as light bulb filaments, cutting tools, etc., the improvement of surface finish can significantly improve the mechanical properties of tungsten wire.
- Corrosion resistance
Tungsten wire may be affected by corrosion in certain environments, and the surface finish will also affect its corrosion resistance. The surface of tungsten wire with high finish is more difficult to be corroded by corrosive media, thereby improving its corrosion resistance. This is especially important for tungsten wire that needs to work in harsh environments.
- Processing performance
During the processing of tungsten wire, the surface finish will also affect its processing performance. Tungsten wire with high finish is easier to carry out subsequent processing and handling, such as cutting, welding, etc. At the same time, the smooth surface also helps to reduce friction and heat generation during processing, improve processing efficiency and product quality.
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