The ablation phenomenon of tungsten wire is the result of the combined action of multiple factors. To avoid this phenomenon, we can start from the following aspects:
- Optimize the working environment
Improve the vacuum degree:
In applications such as vacuum coating, the vacuum degree should be strictly controlled to reduce the chemical reaction between the tungsten wire and the residual gas, thereby reducing the ablation rate.
Control temperature and evaporation time:
During the evaporation process, the heating temperature and evaporation time should be reasonably controlled to avoid excessive evaporation and ablation of the tungsten wire caused by excessive temperature and excessive evaporation time.
- Improve materials and processes
Select high-purity tungsten wire:
High-purity tungsten wire has better high temperature resistance and ablation resistance, so it should be used first.
Surface coating treatment:
Coating a layer of anti-oxidation and anti-ablation coating on the surface of tungsten wire, such as hafnium, silicide, etc., can effectively improve the ablation resistance of tungsten wire.
Optimize tungsten wire structure:
By changing parameters such as the diameter, length or shape of the tungsten wire, its thermal conductivity and heat dissipation performance can be optimized, thereby reducing the risk of ablation.
- Strengthen equipment maintenance and monitoring
Regular inspection and maintenance:
Regularly inspect and maintain equipment using tungsten wire to ensure that the equipment is in good working condition and avoid tungsten wire ablation caused by equipment failure.
Monitor current and voltage:
During use, the changes in current and voltage should be monitored in real time to ensure that they are within the rated range to avoid tungsten wire ablation caused by excessive current or voltage.
- Reasonable use and storage
Avoid excessive use:
During use, long-term continuous use or frequent startup and shutdown of equipment should be avoided to reduce fatigue and ablation of tungsten wire.
Proper storage:
When storing tungsten wire, it should be placed in a dry, ventilated, and light-proof environment to avoid contact with moisture, corrosive gases, etc. to reduce oxidation and corrosion of tungsten wire.
More details of tungsten wires, please visit website: http://tungsten.com.cn/tungsten-wires.html
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