Ion fan is a kind of static electricity eliminator, which is mainly composed of high-voltage power generator and discharge needle - tungsten needle. Generally, a high voltage above 4 kV is applied to the discharge needle, therefore, the tip of the discharge needle is loaded with a very large energy load. And it is the main reason for the wear of tungsten needles. In addition, pollution will increase the corrosion and wear of tungsten needle electrodes.
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According to the experts, once the tip of the discharge needle of ion fan wears out, the concentration of electric field energy will inevitably be reduced, so the amount of ions generated will also be reduced. When the amount of ions generated decreases, the de-electrification time becomes slower. In addition, after the discharge needle is worn, it will also have a large impact on the amount of positive and negative ions. That is to say, like the impact of tungsten needle pollution, positive ions are reduced more than negative ions, so more negative ions are generated than positive ions, which leads to a worse electrostatic balance.
