Plasma cutting machine has the advantages of more concentrated plasma arc energy, higher temperature, faster cutting speed, less deformation, and can also cut stainless steel, aluminum and other materials.
The insufficiency of plasma cutting is that the arc is strong, the noise is large, the dust is much, there is a certain pollution to the environment, and the medium thickness is a lot of using the underwater plasma cutting, and the cutting thickness is also limited. Similarly, gas flow, arc length, telegraph quality, current size, and cutting speed all affect quality. Plasma cutting guns should not be more, because the cutting speed is faster, susceptible to the influence of the above factors appear uncoordinated, so that the cutting quality is not the same. In general, for sheet cutting, the surface quality of the plasma cutting incision is better than that of the fire filling and there are few drosses.
In recent years, foreign manufacturers have developed new technologies called fine plasma or high-precision plasma, which have been introduced by domestic manufacturers. The effect is good. By improving the design of the cutting moment, the quality of the cutting surface of the workpiece is significantly improved, and the verticality of the cutting edge can reach 0-1.5°, which is particularly advantageous for improving the cutting quality of the thick plate. Due to the improved cutting gun, the life of the electrode is increased several times. However, the distance between the torch and the steel plate is required to be higher, and the height sensor on the cutting torch is required to be more responsive, and the torch raising and lowering reaction is faster.
Therefore, the use of plasma cutting 4-30 mm steel plate is an ideal method, which can avoid the disadvantages of slow cutting, large deformation, serious nicking and severe dross slag. A certain thickness of stainless steel and other materials were obtained.
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