Why do ion fans use tungsten needles
Tungsten needle, as its name implies, is a product of transition metal tungsten. With its excellent physical and chemical properties, it has become one of the most popular discharge needles in modern times.
Discharge needle is one of the most important parts in ionic fan. In addition to the long time after the pollution will affect the fan in addition to the electrostatic effect and ion balance, its quality will directly affect the fan in addition to the electrical performance. At present, the more widely used electroacupuncture is stainless steel needle and tungsten products. Relative to tungsten discharge needle, although stainless steel needle has the advantage of lower price, but its wear resistance, oxidation resistance and corrosion resistance are far less than tungsten discharge needle.
The working environment of electroacupuncture is relatively bad. Under normal circumstances, it has to be applied 4kV or higher voltage (2-3kV high frequency AC mode), so the tip part of the discharge needle needs to bear very large energy load, which is the main reason for the easy damage of the product and short service life.
In view of the above problems, now manufacturers are more willing to choose inorganic metal tungsten as the discharge needle of ion fan. Tungsten is a refractory metal with a melting point between 3390°C and 3430°C. The needle end products made from tungsten not only have good high temperature resistance, wear resistance and chemical stability, but also excellent electrical conductivity, high strength, hardness, no radioactivity and more friendly to the ecological environment.
Therefore, compared with stainless steel needle, tungsten needle is more suitable for discharge needle, in addition to ensuring a longer service life, but also make the related fan in addition to the electrostatic effect is better, and effectively improve work efficiency. Worth saying is, the make material that puts electric needle still has metallic germanium, nickel, titanium, monocrystalline silicon to wait for a material.
