It is believed that all of us are familiar with the laser cutting machine. With the gradual increase of the thickness of processed metal plates, the ten thousand watt laser cutting machine is more and more widely used. Users often ask why the protective lenses of the laser cutting head are burned out during the operation of the laser cutting machine. So, what is the cause of the burning of the protective lens of the laser cutting head? How to effectively prevent the lens from burning? Now let's take you to know.

Laser cutting head protects lens

Protective lenses are very important precision components in the optical path system of the laser cutting machine. During processing, the laser cutting head will gather a lot of energy. In order to prevent dust and slag splashing and protect the internal optical path and core components of the laser cutting head, the laser cutting head needs to be installed with protective lenses to effectively protect the laser cutting head from damage.

What are the reasons for the burning of protective lenses

The protective lenses of the laser cutting machine are easy to burn out in most cases due to improper maintenance of the equipment, such as failure to stop the light in time in case of dust pollution of the lenses, high temperature and moisture of the protective lenses; The blown auxiliary gas is not pure, the pressure does not conform to the standard, the optical path of the emitting laser is shifted, the aperture of the cutting nozzle is too large, the use of low-quality protective lenses, and the collision between the protective lenses and other objects will affect the protective lenses. It is easy to burn or crack the lens.

The protective lens of the laser cutting machine is a consumable and vulnerable part, which generally needs to be replaced in time. When the power is increased to more than ten thousand watts, once the dust pollution occurs on the lens, and the burning point is deteriorated without stopping the light in time, the instantaneous absorbed energy increases, it is easy to crack. When the protective lens is at a high temperature, if there is water on the protective lens, it may explode.

How to protect the lens from damage

There are many reasons that affect the service life of the protective lenses. When using the cutting machine, we can use the following methods to protect the lenses from damage.

Reasonable setting of perforation times

The higher the output frequency of the laser cutting machine is, the more likely it is to cause damage to the lens by perforation and sputtering. Therefore, when using the laser cutting machine, we should set the perforation parameters as reasonably as possible to protect the lens.

Do a good job of cleaning and dedusting

Regularly check and protect the lens, and timely remove the stains and liquids on the lens. Pay attention not to use too much force during cleaning to prevent damage to the lens. Before using new protective lenses, they should be cleaned and dusted before use.

Check the running state of the air compressor

In addition to checking the laser cutting head and protective lenses, it is also necessary to regularly check whether the air compressor and dryer operate normally.

The breakage of the protective lens is easy to cause the failure and damage of the laser cutting head, so in the process of using the equipment, attention must be paid to the maintenance of the equipment. Only by protecting the lens can it be reused for a long time, prolong its service life and save costs.

The above is the relevant knowledge about the laser cutting machine to protect the lens from burning out. Please leave a message if you have any views or experience on it!