Laser cutting machine in the cutting process, the auxiliary gas is essential! Which we commonly used with oxygen and nitrogen, of course, the higher the purity of the gas, cutting quality will be better. There are many customers want to save the cost of using air cutting, but the cutting process to protect the lens is always water mist, cutting quality is poor, which is why?
First of all, give you universal, the role of auxiliary gas:
1. In order to blow away the residual residue, to achieve the best cutting effect.
2. The use of gas to blow away the metal slag while protecting the lens, to avoid slag attached to the lens, affecting the quality of cutting.
3. Can effectively achieve the cutting surface smooth, no burrs without hanging residue effect, are fine cut off.
4. Can react with the material to increase the cutting speed, for example, the use of oxygen can achieve the effect of combustion.
So, in order to achieve a better cutting effect, the requirements of the auxiliary gas is relatively high! Although the air can be used as auxiliary gas, but because the air contains water and oil, if not treated, will cause the lens pollution, cutting head instability, so that the cutting effect and quality is not up to standard. Therefore, in the use of air cutting, the need for fiber laser cutting machine equipped with cold and dry machine, so that a very good solution to this problem. The cold and dry machine can be forced to cool the compressed air below the required dew point temperature, which will contain a large number of water vapor, oil mist condensed into droplets, separated by gas and liquid, discharged from the machine, the compressed air drying.
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