What is the reason for the fast wear and burn resistance of tungsten electrodes?
This is mainly due to excessive current, exceeding the allowable current range of the tungsten electrode; Improper selection of tungsten electrodes, such as mismatched diameter or model; Improper grinding of tungsten electrodes leads to melting; And issues with welding techniques, such as frequent contact and ignition between tungsten tips and base materials, leading to accelerated wear and tear.
Why does tungsten rod sometimes not conduct electricity?
1. Dirt or oxidation: The conductivity of tungsten decreases as the degree of oxidation on its surface increases. If the surface area of the tungsten rod accumulates a lot of dirt or is not cleaned for a long time, it will affect its conductivity.
2. Low purity: If there are other impurity metals in the material of the tungsten rod, they may limit the flow of current and cause the tungsten rod to be non-conductive.
3. Uneven sintering: During the manufacturing process of tungsten rods, sintering is required. If the sintering is uneven, adverse reactions may occur on the surface, which can also lead to a decrease in the conductivity of the tungsten rod.