At present, many manufacturers use plasma CNC cutting machines, plasma CNC cutting machine has the characteristics of fast cutting speed, small slitting, etc. in the cutting process, but the user company is not properly set in the operation of plasma CNC cutting machine related parameters will also affect the cutting The actual effect. Many users often have various problems in the actual operation process, resulting in the actual cutting speed is limited, the nicks are too large, the surface is not the whole phenomenon, these may not be the machine itself, but the problem of the machine settings. Here we give you some introduction and analysis.
The various factors above the cutting speed directly affect the compression effect of the plasma arc, that is, the temperature and energy density of the plasma arc, and the high temperature and high energy of the plasma arc determine the cutting speed. Therefore, all of the above factors are related to the cutting speed. In the premise of guaranteeing the cutting quality, the cutting speed should be increased as much as possible. This not only increases productivity but also reduces the amount of deformation of the cut parts and the heat affected zone of the kerf area. If the cutting speed is not appropriate, the effect is reversed, and the sticky slag will increase, and the cutting quality will decrease.
Increasing the gas flow rate The gas flow rate not only increases the voltage of the arc column, but also enhances the compression of the arc column so that the plasma arc energy is more concentrated and the ejection force is stronger so that the cutting speed and quality can be improved. However, if the gas flow rate is too large, the arc column will become shorter and the loss of heat will increase, which will weaken the cutting ability until the cutting process is not performed properly.
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Calcium carbide is an inorganic substance, the chemical formula is CaC2, the main component of calcium carbide, white crystals, industrial products are gray-black lumps, and the cross section is purple or gray. It reacts violently when encountering water, generating acetylene and releasing heat. Calcium carbide is an important basic chemical raw material, mainly used to produce acetylene gas. Also used in organic synthesis, oxyacetylene welding, etc.
Acetylene produced by the reaction of calcium carbide with water can synthesize many organic compounds such as synthetic rubber, synthetic resin, acetone, ketene, carbon black, etc.; at the same time, acetylene-oxygen flame is widely used in metal welding and cutting.
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