Automatic welding robots use the generated arc to apply force to materials, thereby achieving the purpose of welding. The arc also exhibits different performance during the welding process, one of which is static characteristics. In fact, the static characteristics of welding robot arcs are still related to many factors. If we can fully grasp this, it will also help us understand the reasons for arc changes.

1. The conditions for generating static characteristics of electric arcs in automatic welding robots
In welding operations, once the electrode material, gas medium, and arc length can be maintained, as long as the arc of the welding robot can burn stably, the welding current and arc voltage will show corresponding changes. In the industry, the relationship between the two is defined as the static characteristics of the arc of a welding robot.

 

2. The Factors Influencing the Static Characteristics of Electric Arcs in Automatic Welding Robots: Gas Medium Pressure
From the above definition, power generation can be achieved. The electrode material, gas medium, arc length, etc. are closely related to the static characteristics of the arc. Under the influence of gas medium pressure around the welding robot, if other parameters remain unchanged, the arc pressure will change due to changes in medium pressure.

3. The Factors Influencing the Static Characteristics of Electric Arcs in Automatic Welding Robots: Arc Length
The so-called change in arc length only refers to the change in the length of the welding robot's arc column, while at the same time, the change in the length of the cathode and anode areas is not significant. So once the pressure drop of the entire arc column increases, the static characteristic position of the arc will also increase accordingly. In simple terms, as the current increases, the arc length increases, and the arc voltage will also increase.

4. Gas Types Influencing the Static Characteristics of Electric Arcs in Automatic Welding Robots
The different types of gases will lead to different ionization energies and thermal physical properties, which will have a differentiated impact on the arc voltage. In general, gases with high thermal conductivity have a stronger cooling effect on the arc, so the arc voltage of the welding robot increases at this time.
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