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1 等离子体的性能冶金用的等离子体就是“汽体电弧”。例如我们向氢气不断输入能量,于是氢即由分子裂解成原子,最后生成离子体。就宏观讲,它的电性相中和,因此叫等离子体。这种离子体一旦离开电弧,反应逆向,将迅速复合成分子,放出大量能量,形成高温火炬。 H_2(?)2H(?)2(H~++e) 分子体原子体等离子体 (1)由于它是离子体,故能良好地导电。在两个电极间的常规气体,其电阻几乎是无限大。而等离子体的电阻只有1Ω或更小,因而生成稳定的电弧。
1 plasma performance Metallurgical plasma is “vapor arc ”. For example, we continuously input the energy to the hydrogen, so the hydrogen is split into atoms by the molecules and finally the ions are generated. Macroscopically speaking, its electric phase neutralization, so called plasma. Once away from the arc of this ion, the reaction is reversed, will quickly compound into molecules, release a lot of energy, the formation of high temperature torch. H 2 (?) 2H (?) 2 (H ~ ++ e) Molecular Plasma Atomic Plasma (1) Because it is an ion, it conducts well. The conventional gas between the two electrodes has an almost infinite resistance. The plasma resistance is only 1Ω or less, thus generating a stable arc.