How plasma cutting machines workThorpe
A plasma is a gas that is heated to a very high temperature and is highly ionized. It transfers the arc power to the workpiece. The high heat causes the workpiece to melt and be blown off, forming a working state of plasma arc cutting.
After the compressed air enters the torch, two channels are distributed from the air chamber to form a plasma gas and an auxiliary gas. The plasma gas arc acts as a molten metal, while the auxiliary gas cools the various components of the torch and blows away the molten metal.
The cutting power supply consists of two parts: the main circuit and the control circuit. The electrical principle: the main circuit includes a contactor, a three-phase power transformer with high leakage resistance, a three-phase bridge rectifier, a high-frequency arcing coil and a protection component. The high-leakage resistance leads to a steep external power supply characteristic. The control circuit completes the entire cutting process through the push button switch on the torch:
Pre-ventilation – main circuit power supply – high frequency arcing – cutting process – interest arc – stop.
The power supply of the main circuit is controlled by the contactor; the short-circuit of the gas is controlled by the solenoid valve; the control circuit controls the high-frequency oscillator to ignite the arc, and stops the high frequency after the arc is established.
In addition, the control circuit also has the following internal locking function: the thermal switch action, stop working.
mini plasma cutting machine is a kind of processing method that makes use of the heat of high-temperature plasma arc to melt (and vaporize) the metal at the cut of the workpiece and eliminate the molten metal by the momentum of high-speed plasma to form the notch.
Advantage of the plasma cutting machine
mini plasma cutting machine is high, especially during common carbon steel sheet cutting, the plasma cutting speed is 5-6 times that of flame cutting.
Low price, you still need to expect the best service, Cut mild steel with the flame process. Cut high carbon steel, stainless steel, and other non-ferrous metal with the Plasma process
Small size, great capability.High precision, low price.
MINI Plasma cutting machine are wide used in automobiles, pressure vessels, chemical machinery, nuclear industry, general machinery, engineering machinery, steel structure, and other industries.
Suitable for low carbon steel, copper plate, iron plate, aluminum plate, galvanized plate, titanium plate and other metal plates.