Treatment for nozzle common problems of CNC flame plasma cutting machine

In the use of CNC flame plasma cutting machine, in addition to the requirements of hardware equipment and operation technology, the quality stability of common vulnerable parts and accessories also needs to be understood. As one of the key components of NC flame cutting machine, the cutting nozzle, in the ordinary use process, needs operators to deal with its frequent faults and their handling. The method has a better grasp.

1. The flame will be extinguished immediately after opening the cutting oxygen control valve although the flame is normal after the mouth and cutting torch are not properly treated. The reason is that the cut ends and the cutting torch are matched. At this point, the cutting nozzle should be tightened. When it is invalid, the cutting nozzle should be removed and the fine sandpaper should be used lightly. Grinding and cutting the mouth to match the surface until close.

2. Keep the CNC flame plasma cutting machine cutting passage clean and smooth. The dirt in the cutting passage should be cleaned with a needle at any time.

3. After the flame is extinguished, if the flame is extinguished immediately when the preheated oxygen regulator is turned on to adjust the flame, the reason is that there is dirt in the gas passage or the horn mouth of the ejector is not tightly contacted, and the outer sleeve of the cutting nozzle is not properly matched with the inner nozzle. At this time, the ejector nut should be tightened; when invalid, ejector should be removed to remove the dirt in the gas channel and adjust the gap between the cutting nozzle jacket and the inner sleeve, and tighten.

4, Choose the right cutting nozzle of CNC flame plasma cutting machine according to the thickness of the cutting workpiece, choose the appropriate cutting nozzle. When assembling the cutting nozzle, it is necessary to keep the inner and outer nozzles concentric to ensure that the cutting oxygen jet is located in the center of the preheated flame, and to tighten the cutting nut when installing the cutting nozzle.