The reason why the laser cutting machine protects the lens with water mist
Release time:
2022-03-18
The reason why the laser cutting machine protects the lens with water mist
In the cutting process of laser cutting machine, auxiliary gas is essential! Among them, we commonly use oxygen and nitrogen. Of course, the higher the purity of the gas, the better the cutting quality. There are also many customers who want to save costs and use air cutting. However, there is always water mist on the protective lens during the cutting process, and the cutting quality is very poor. Why?
First of all, let's give you the popularity of the role of auxiliary gas:
1. In order to blow away the residual waste residue, to achieve the best cutting effect.
2. The use of gas to blow away the metal slag at the same time to protect the lens, to avoid slag attached to the lens, affecting the cutting quality.
3. It can effectively achieve the effect of smooth cutting surface, no burr and no slag, which belongs to fine cutting.
4. It can react with the material and increase the cutting speed, for example, the use of oxygen can achieve the effect of supporting combustion.
Therefore, in order to achieve a better cutting effect, the requirements for auxiliary gas are relatively high! Although the air can be used as an auxiliary gas, but because the air contains water and oil, if not treated, it will cause lens pollution, cutting head instability, so that the cutting effect and quality is not up to standard. Therefore, when using air cutting, it is necessary to equip the fiber laser cutting machine with a cold dryer, which is a good solution to this problem. The cold dryer can be forced to cool the compressed air below the required dew point temperature, so that a large amount of water vapor and oil mist contained in it are condensed into liquid droplets, which are separated by gas-liquid separation and discharged out of the machine by the drain to dry the compressed air.
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