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The plasma cutting machine, combined with different working gases, can cut various metals that are difficult to cut with oxygen, especially for non-ferrous metals (aluminum, copper, titanium, nickel) with better cutting effect; Its main advantage is that when cutting metal with small thickness, the plasma cutting speed is fast, especially when cutting ordinary carbon steel sheet, the speed can reach 5~6 times of the oxygen cutting method, the cutting surface is smooth, the thermal deformation is small, and there is almost no Heat-affected zone.
The working gas that can be used in plasma cutting machines (the working gas is the conductive medium and heat carrier of the plasma arc, while also excluding molten metal in the incision) has a significant impact on the cutting characteristics, cutting quality, and speed of the plasma arc. Commonly used plasma arc working gases include argon, hydrogen, nitrogen, oxygen, air, water vapor, and certain mixed gases.
Plasma cutting machines are widely used in automobiles, locomotives, pressure vessels, chemical machinery, nuclear industry, general machinery, engineering machinery, steel structures and other industries.
It is the first in the history of metal processing industry to conduct hot working (cutting, fusion welding, brazing, quenching, spraying, etc.) on metal with thickness of more than 0.3mm by obtaining plasma from water vapor in a safe, simple, effective, multi-functional and environmentally friendly way.
The plasma product "Multiplaz 3500" consists of a plasma gun and a chassis, with a total weight of 9 kilograms. The essence of the working process of plasma equipment is as follows: an arc is generated between the nozzle (anode) and the electrode (cathode) inside the gun, causing the moisture between them to ionize and reach the state of plasma. At this point, the ionized vapor is sprayed out of the nozzle in the form of a plasma beam under the pressure generated internally, with a temperature of around 8000 ºC. Through this, non combustible materials are cut, welded, fused, and subjected to other forms of heat treatment processing.