1. What is the reason for the burning of the fiber optic pipe connection cutting head of the laser cutting machine?

For ten thousand watt laser equipment, once the protective mirror is burned out, the most serious problem will be the abnormal optical path inside the cutting head, and the return light will cause abnormal heating of the laser fiber output head window, ultimately burning out QBH or LOE crystals.

2. What is the reason for the old and broken protective lenses of laser cutting machines?

Generally speaking, the first consideration is whether the gas you blow is pure. The pressure meets the standard. If blowing air, the quality of compressed air must be checked.

Then check whether the optical path is offset, whether other lenses are damaged, and whether the nozzle aperture used is too large.

Finally, check if the cutting software has a reasonable perforation and blowing cutting sequence, and it is normal to cut high reflective materials (aluminum, copper) and their alloys for a long time, as well as explosion protection lenses.

3. How to properly protect the protective lenses of laser cutting machines?

The correct methods for protecting lenses with laser cutting machines are:

1. The cutting parameters must be correct;

2. Focal length, cutting speed, plate thickness, and air pressure stability can affect the protection of lenses;

3. The maintenance method is to scrub; Is there a front and back side for the protective lens of the laser cutting machine.

4. If you feel that it affects cutting, wipe the laser cutting machine to protect the lenses from black spots.

4. How to solve the problem of the protective lens of a laser welding machine always burning out?

In fact, the protective lenses of laser welding machines are consumables themselves, so they need to be replaced regularly. However, due to the influence of process/technology/settings, slag reversal caused damage. The protective lenses used in laser welding machine equipment are easily burnt out.

To prevent improper use of laser welding equipment from causing frequent damage to the protective lens, the following issues can be noted to extend the service life of the laser welding protective lens.

1. Increase the air pressure appropriately. Usually, the flow rate is not less than 15 and the pressure is not less than 4. It is recommended to use an oxygen pressure gauge not less than 2kg for laser cutting machine replacement of protective lenses.

2. When welding, the welding gun and plate should be welded at a 45 ° angle as much as possible, not perpendicular;

3. The parameters should be set as slowly as possible to rise and fall, such as on/off gas delay -, on/off optical power of 20%, and on/off optical gradual time -, as shown in the figure at 0;

4. When welding aluminum and galvanized sheet, this material is more likely to damage the mirror than other materials, and minimum power welding should be used;

The quality of the protective mirror also determines its durability. Suggest using original lenses;

6. Compared to low power, the loss of the lens will increase, which is an uncontrollable range;

When the above situation cannot be handled, the focusing lens can be replaced to extend the width tube to reduce splashing.