Hypertherm Powermax 1650 Consumables Nozzle Plasma Machine 220930

Finecut consumable, Air Plasma Nozzle 220930, PMX Air Plasma Cut

Plasma cutting

Process:

The basic plasma cutting process involves creating an electrical channel of ionized gas i.e. plasma from the plasma cutter itself, through the work piece to be cut, thus forming a completed electric circuit back to the plasma cutter via a grounding clamp. This is accomplished by a compressed gas (oxygen, air, inert and others depending on material being cut) which is blown through a focused nozzle at high speed toward the work piece. An electrical arc is then formed within the gas, between an electrode near or integrated into the gas nozzle and the work piece itself. The electrical arc ionizes some of the gas, thereby creating an electrically conductive channel of plasma. As electricity from the cutter torch travels down this plasma it delivers sufficient heat to melt through the work piece. At the same time, much of the high velocity plasma and compressed gas blow the hot molten metal away, thereby separating i.e. cutting through the work piece.

Plasma cutting is an effective means of cutting thin and thick materials alike. Hand-held torches can usually cut up to38mm thick steel plate, and stronger computer-controlled torches can cut steel up to 150 mm thick.[1] Since plasma cutters produce a very hot and very localized "cone" to cut with, they are extremely useful for cutting sheet metal in curved or angled shapes.

Technical Support:

Common problems in the application of plasma cutting machine

1, high pressure

"If the input air pressure far exceed 0.45MPa, after the formation of the plasma arc, the large flow of air will blow concentrated arc column, the energy of arc column dispersion, decreased the plasma arc cutting intensity. Cause the pressure is too high, the reasons are: improper input air conditioning, air filter regulator is too high or air filter valve failure.

The solution is to check whether the pressure of the air compressor is adjusted properly, air compressor and air filter pressure relief valve is dysfunctional. After startup, such as rotating air filter relief pressure valve adjusting switch, gauge unchanged, indicating that the air filter relief pressure valve failure, need to be replaced.

2, cutting torch nozzle and electrode

"Since the nozzle installation is improper, such as threads are not tightened, equipment of each block bit improper adjustment, need water cooling of the torch at work, not in accordance with the requirements of pass into the flow of cooling water and frequent arcs, will cause premature failure of the nozzle.