等离子弧切割的原理和特点等离子弧切割是依靠等离子体的高温将待切割处的材料熔化和气化,同时利用其巨大的冲力把熔融金属吹除而形成割缝的。因此它是一种熔融切割的方法,与利用铁与氧燃烧反应的气割法在原理上是截然不同的。图1为等离子弧切割法所用设备的构成方框图。因等离子弧切割法是一种利用高温、高速等离子体的熔融切割法,因此它具有一系列特点: (1)能切割现有绝大部分材料,尤其适合于切 The principle and characteristics of plasma arc cutting Plasma arc cutting is to rely on the high temperature plasma will be cutting the material melting and gasification, while using its huge momentum to blow off the molten metal to form a kerf. It is therefore a melt-cut method that is fundamentally different in principle from the gas cut method that utilizes the reaction of iron with oxygen. Figure 1 is a block diagram of the plasma arc cutting equipment used in the composition. Because of the plasma arc cutting method is a use of high-temperature, high-speed plasma melting method, it has a series of features: (1) can cut most of the existing materials, especially for cutting