SERVICE
Marostal renders the services of plasma cutting on the highest-class numerically controlled device (CNC) equipped with 3D head.
WHAT IS PLASMA?
Plasma is often called the forth state of matter. We normally think of the three states of matter as solid, liquid and gas. For a common element, water, these three states are ice, water and steam. The difference between these states relates to their energy levels. When we add energy in the form of heat to ice, the ice melts and forms water. When we add more energy, the water vaporizes into hydrogen and oxygen, in the form of steam. By adding more energy to steam these gases become ionized. This ionization process causes the gas to become electrically conductive. This electrically conductive, ionized gas is called plasma.
TECHNOLOGY
The plasma cutting
process, as used in the cutting of metals, makes use of a plasma arc established between an electrode and the material being cut.
The basic plasma arc cutting system consists of a power supply, an arc starting circuit and a torch. These components provide the electrical energy, ionization capability and process control that is necessary to produce cuts of high quality and productivity on a variety of different materials.
The power supply is a constant current DC power source. The open circuit voltage is typically in the range of 240 to 400 VDC. The output current (amperage) of the power supply determines the cut speed and maximal thickness of the material being cut. The main function of the power supply is to provide the correct energy to maintain the plasma arc after ionization.