When using tungsten electrodes in a high-vacuum environment, the following aspects need to be noted:
Avoid Oxidation
Although the oxygen content is extremely low in a vacuum environment, it can prevent oxidation, but if there is residual oxygen when the electrode is heated or started, it may still cause slight oxidation on the electrode surface.
Before use, ensure that the vacuum level meets the requirements to reduce impurity gases.
Control The Temperature
The heat dissipation of tungsten electrodes in high vacuum is poor, and the temperature is easy to rise too quickly, so overload and local overheating should be avoided to prevent electrode burnout or deformation.
Gas ProtectionAssist
Even in vacuum environments, some processes may require localized inert gas protection to prevent contamination of the electrode surface.
Avoid Electrode Contamination
Impurity gases or vapors remaining in the vacuum may be deposited on the surface of the electrode, affecting its performance and require regular cleaning and maintenance.
The Electrode Is Securely Clamped
Vacuum equipment usually has a complex structure to ensure that the electrode is firmly clamped, preventing vibration and displacement, and ensuring the stability of the arc.
Prevent Electrode Cracking
In the vacuum environment, the thermal stress is concentrated, pay attention to the slow rise and fall of the temperature to reduce thermal shock and avoid electrode cracking.
Choose The Appropriate Electrode Material And Diameter
According to the vacuum heating power and working conditions, select the appropriate specifications of the tungsten electrode to ensure performance and longevity.
More details of tungsten electrodes, please visit website: http://tungsten.com.cn/tungsten-electrodes.html
Please contact CHINATUNGSTEN for inquiry and order of tungsten needles:
Email: sales@chinatungsten.com
Tel.: +86 592 5129595
