Auxiliary gas is crucial in the cutting process of the laser pipe cutter! Of these, oxygen and nitrogen are commonly used. Of course, the higher the purity of the gas, the better the cutting quality. There are also many customers who want to save costs by using air cutting, but in the cutting process, there is always water mist on the protective mirror, and the cutting quality is poor. Why? First, let's popularize the role of auxiliary gases:
To blow away the residue and achieve a good cutting effect. While the metal slag is blown away by gas, the lens is protected to avoid the slag sticking to the lens and affecting the cutting quality.
It can effectively achieve the effect of smooth cutting surface, no burrs, no slag, and belongs to fine cutting.
It can react with the material to improve the cutting speed. For example, the use of oxygen can achieve the effect of combustion. In order to achieve better cutting results, the auxiliary gas requirements are relatively high. Although air can be used as an auxiliary gas, because the air contains water and oil, if it is not treated, it will cause lens pollution and the cutting head is unstable, so that the cutting effect and quality can not meet the standard. Therefore, when using air cutting, it is necessary to equip the fiber laser cutting machine with a cold dryer, which solves this problem well.
The cold dryer can force the compressed air to cool below the desired dew point temperature, thereby condensing the large amount of water vapor and oil mist contained in it into droplets, which are discharged from the machine by the drain through the gas-liquid separation to dry the compressed air.
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