In the use of CNC flame cutting machine, the fault of cutting nozzle is a large part. Compared with the requirements of hardware equipment and operating technology, CNC flame cutting machine cutting nozzle is used as common wearing parts and accessories. Not only its quality, but also the operational requirements have special requirements, which is the main cause of more failures.
The cutting nozzle is one of the key components of the CNC flame cutting machine. In the normal use process, the operator needs to have a good grasp of its frequent failure and its treatment method! The following are some of the cutting nozzle failures and treatment methods that Dongguan Zhenleili Electromechanical has summarized in the production and maintenance work for many years based on the observation of cutting quality. I hope to give you some reference.
1. The mouth and the torch are not properly treated. Although the flame is normal after ignition, when the cutting oxygen regulating valve is opened, the flame is extinguished immediately. The reason is that the cutting head and the torch are matched, and the joint is not strict. At this time, the cutting nozzle should be tightened. When it is invalid, the cutting nozzle should be removed and lightened with fine sandpaper. Grind the cutting head to match the surface until it fits tightly.
2, keep the cutting nozzle channel cleaning nozzle channel should always be clean and smooth, the dirt in the tunnel should be removed with a needle at any time.
3. After the flame is extinguished, when the preheating oxygen regulating valve is adjusted to adjust the flame, if the flame is extinguished immediately, the reason is that there is dirt in the gas passage or the contact of the nozzle of the suction pipe is not strict, and the torch casing and the inside are cut. The mouth is not properly matched. At this time, the suction pipe nut should be tightened; when it is invalid, the suction pipe should be removed, the dirt in each gas passage should be removed, and the gap between the cutting casing and the inner sleeve should be adjusted and tightened.
4. Select the appropriate cutting nozzle and select the appropriate cutting nozzle according to the thickness of the cutting workpiece. When assembling the cutting tip, the inner and outer nozzles must be kept concentric to ensure that the cutting oxygen jet is at the center of the preheating flame, and the tipping nut is tightened when installing the cutting tip.
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