WHAT IS PLASMA?

ESTADOSEquipo Plasma 3D Without going any further, the Sun is, in itself, a gigantic plasma, full of atoms of Hydrogen and Helium that have lost totally or partially their electrons as a result of the extremely High temperaturas generated inside (they estimate that the temperatura of the Sun is approximately 6000ºC in surface and some 15 million degrees centrigados in  its interior.

However,To get a Plasma, it is not necessary to apply such high temperatures,  in fact with a candle and a match we have enough; the orange-coloured Corona that we sometimes  see in the flame of the candle is the result of dissociation and ionization of the air molecules and plasma in low density and temperatura.

Finally, If we look arround, it is posible to find more tan one element formed of plasma. Also we can find plasma generated naturally as lightning in a storm, or the sun, man has created artificial plasma with different purposes: in  medicine, industrial aplications such welding, plasma cutting…etc. Even, most of us have at home fluorescent lamps or televisions based on plasma thechnology.

One of plasma application that interest us, consists of casting units heating based on the technology of high power HPTP, thermal plasma consits in taking advantage of the heat of a plasma arc,  and it is  a consequence of the ionization of plasmagen gas between a graphite (the cathode) electrode and the metal, which is electrically connected to another electrode (called anode).  The electric current flows throught the gas ionizing it, being abble to reach temperaturas up of 10.000ºC in the core of arc.

The generation of plasma is obtained by generating potencial difference between the two electrodes, so that it produces a reaction chain that ionize the plasmagen gas giving rise to plasma arc.

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