The coating of tungsten wire may cause the following problems:
Decrease in conductivity:
Coatings are usually used to improve the surface properties of tungsten wire, such as improving conductivity and corrosion resistance. When the coating falls off, the conductive properties of the tungsten wire surface will be affected, which may lead to poor current transmission or increased resistance.
Decrease in corrosion resistance:
Coatings often have excellent corrosion resistance and can protect tungsten wire from erosion by environmental factors. After the coating falls off, the tungsten wire is directly exposed to the environment and is susceptible to oxidation, corrosion, etc., thereby shortening its service life.
Impaired mechanical properties:
The coating can also enhance the mechanical properties of the tungsten wire, such as hardness and toughness. After the coating falls off, the mechanical properties of the tungsten wire may decline, making it more likely to break or deform during use.
Deteriorated appearance quality:
The coating usually has a bright appearance, which can enhance the overall beauty of the product. After the coating falls off, the surface of the tungsten wire will become rough and dull, affecting the appearance quality of the product.
Affecting the use effect:
In some applications, the coating plays a key role in the use effect of the tungsten wire. For example, in electronic devices, the coating may be used to improve the electron emission performance or improve thermal stability. After the coating falls off, these properties may be affected, resulting in device performance degradation or failure.
Safety hazards:
In some high-pressure, high-temperature or corrosive environments, the exposed tungsten wire after the coating falls off may cause safety hazards. For example, it may cause serious consequences such as circuit short circuit, equipment damage or casualties.
In order to avoid the problems caused by the tungsten wire coating falling off, the following measures can be taken:
Strengthen the surface treatment before coating to ensure that the surface is clean, free of oil and impurities, so as to improve the adhesion between the coating and the tungsten wire.
Select appropriate coating materials and processes to ensure the matching and compatibility between the coating and the tungsten wire.
During use, pay attention to avoid excessive friction, collision and other external forces to extend the service life of the coating.
Regularly inspect and maintain the equipment to promptly detect and deal with the problem of coating shedding.
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