What is the function of earth clamp in welding?

May. 13, 2024

MMA Welding | Telwin

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POWER SOURCE

La polarità della corrente di uscita del generatore identifica altre due categorie di appartenenza:

The purpose of the power source is to feed the electric arc, which is present between the base material and the electrode, through the output of a current sufficient in quantity to keep the arc struck. Electrode welding is based on the constant current principle i.e. the current delivered by the power source should not vary when the operator moves the electrode towards the piece.

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The main construction property of the source is therefore to keep the current unchanged in the presence of variations in arc length as the electrode moves closer to or away from the piece: the more constant the current, the more stable results the arc and the simpler the operator's work. Inside the power source, there is usually a welding current adjustment device, of a mechanical (magneticshunt or saturable reactance) or electronic type (SCR systems or inverter systems). This distinction can be used to classify electrode welding machines into three families, depending on their construction technology: electromechanical welding machines, electronic welding machines (SCR), inverter welding machines.

The polarity of the power source output current distinguishes two further categories:

What Is The Use Of Earth Clamp For Electric Welding?

As one of the Plasma Welding Machine Suppliers, let's talk about the use of earth clamps for welding.Electric welding is a welding operation that is realized by using an electrode to melt a place where a metal part needs to be joined by an arc. The working principle is: the voltage is reduced by the transformer in the electric welding machine, the current is increased, and the electric arc generates a large arc heat to melt the electrode and the steel, and the welding rod melts to make the fusion between the steels higher.Arc welding is the most widely used welding method, including hand arc welding, submerged arc welding, tungsten gas shielded arc welding, plasma arc welding, and gas metal arc welding. Because the arc welding uses a power source, the high-temperature arc generated by it is prone to fire and explosion, and the danger is high.

Earth Clamp is: if there is no grounding, leakage will occur, and the leakage current will conduct electricity through the human body - the earth, which will cause personal injury. So it must be grounded. The grounding wire is to form a loop, otherwise there is no loop, there is no current, and no current can be arc welding.

The function of theis: if there is no grounding, leakage will occur, and the leakage current will conduct electricity through the human body - the earth, which will cause personal injury. So it must be grounded. The grounding wire is to form a loop, otherwise there is no loop, there is no current, and no current can be arc welding.

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