Collection of common problems and solutions for laser tubes

1. Laser tube head detachment

If the laser tube head is detached, it is important to determine if there is damage to the laser tube itself or the mounting hardware.
If there is damage, the laser tube or mounting hardware may need to be replaced.
If the laser tube and mounting hardware are not damaged, you can reinstall the laser tube head by carefully calibrating the mounting hardware and securing it in place.
Always follow the manufacturer's instructions for installing the laser tube head, as incorrect alignment or installation can result in damage to the laser system or injury to the operator.
If you are unsure how to properly install the laser tube head, or if there is any damage to the laser tube or mounting hardware, it is best to consult a laser repair professional or the manufacturer for assistance.

2. Cracked or broken laser tube

Laser tube breakage can be caused by:
1. The water temperature is too low, causing the water in the laser to freeze;
2. The laser is not watered
3. The water pressure is too low
4. the direction of water flow does not follow the principle of low in, high out, the water does not fill the laser water-cooled tube, resulting in localized heating of the laser.

If the laser tube is cracked or broken, it will most likely need to be replaced.
Before attempting to remove a damaged laser tube, the laser system must be shut down and the power disconnected.
Care should also be taken when handling the laser tube, as broken glass or other debris may cause injury.

To replace the laser tube, you will need to follow the manufacturer's instructions for removing and installing the new laser tube.
This may require removing the laser tube header and then carefully aligning the new laser tube with the mount. Always handle the laser tube carefully to ensure that it is properly aligned and secured in the mount to prevent damage to the laser system or injury to the operator.
If you are unsure how to replace the laser tube, or if there is any other damage to the laser system, it is best to consult a laser repair professional or the manufacturer for assistance.

3. Water leakage from the laser tube into the outer cavity

If the laser tube leaks water into the outer cavity, be sure to turn off the laser system and disconnect the power supply to prevent any electrical hazards.
Care should also be taken when handling the laser tube as the water may be hot or may contain chemicals that are hazardous to health.

There are several possible reasons for the laser tube to leak water into the outer cavity:
a.The cooling system may be malfunctioning or leaking.
b.The seals around the laser tube may be damaged or worn, causing water to seep out.
c.The water supply or filtration system may be faulty.

To troubleshoot, you will need to inspect the cooling system, seals and water supply system to find the root cause of the leak.
It may also be necessary to consult the manufacturer or a laser maintenance professional to diagnose and resolve the problem.

In the meantime, water leaking into the external chamber should be carefully cleaned up to prevent damage to the laser system or injury to the operator.

4. Charred, burned or discolored laser tube wires

If the wires on the laser tube are charred, burned off, or discolored, this may indicate a problem with the power supply or the laser tube itself. It is important to turn off the laser system and disconnect the power supply to prevent any electrical hazards. Care should also be taken when handling the laser tube and wires as they may be hot or may contain hazardous substances.

There are several possible reasons why the wires on the laser tube may be charred, burned off, or discolored:

a.The power supply may have failed or too much power is being supplied to the laser tube.
b. The laser tube may be damaged or have electrical problems.
c.The wire itself may be damaged or poorly insulated.

Troubleshooting will require inspection of the power supply, laser tube and wires to find the root cause of the problem.
It may also be necessary to consult the manufacturer or a laser maintenance professional to diagnose and resolve the problem.

If the leads are damaged, they will need to be repaired or replaced to ensure safe operation of the laser system. It is important to follow the manufacturer's instructions for repairing or replacing wires to prevent injury or damage to the laser system.

5. The laser tube is intact and does not appear to be damaged, but fails to ignite.

If the laser tube is intact and does not appear to be damaged, but fails to ignite, there may be a problem with the power supply, the laser system controller, or the laser tube itself. It is important to shut down the laser system and disconnect the power supply to prevent any electrical hazards.

There are several steps you can take to troubleshoot the problem:

a. Check the power supply: Ensure that the power supply is connected properly and operating correctly. You may need to test the power supply or consult the manufacturer or a laser maintenance professional to diagnose any problems.

Laser power supply failure detection method if there is no damage to the laser tube appearance:
1. If the laser power supply has a detection function, when the laser is in power standby, press the detection switch and the laser light comes on and the laser tube outputs laser light. If the laser light is off, it means that the laser power supply is damaged; if the laser light is on and the laser tube does not emit laser light, it means that the laser is damaged;

2. If the laser power supply has no detection function, the signal ports 5V and IN of the laser power supply are connected with wires; L, P and G ports are connected. If the current exceeds 10mA after the laser power supply is turned on, the laser has no power. Laser energy output or laser energy output is relatively weak, indicating that the laser is damaged; if the current is less than 10mA, indicating that the laser power supply is damaged.

b. Check the laser system controller: Make sure the controller is connected correctly and operating properly. You may need to test the controller or consult the manufacturer or a laser maintenance professional to diagnose any problems.
c. Check the laser tube: Make sure the laser tube is properly aligned and secured to the mount. You may need to test the laser tube or consult the manufacturer or laser maintenance professional to diagnose any problems.

If you are unable to determine the root cause of the problem, it is best to seek assistance from the manufacturer or a laser maintenance professional.

6. Weak laser beam from laser tube

If the laser beam from the laser tube is weak, this could be caused by several different factors. Possible causes include:

a. The laser tube is not receiving enough power: Laser tubes require a certain amount of current to operate properly. If the laser tube is not receiving enough power, it may produce a weak laser beam.

b. Damage to the laser tube: If the laser tube is damaged in some way, a weak laser beam may be produced. This may be physical damage to the laser tube or it may be the result of a manufacturing defect.

c. Laser Tube Not Properly Aligned: The laser tube needs to be properly aligned to function properly. If the laser tube is not properly aligned, it may produce a weak laser beam.

d. Improper laser tube control: The laser tube requires a specific signal to function properly. If the laser tube is not receiving the correct signal, it may produce a weak laser beam.

It is important to note that there may be other reasons why the laser tube produces a weak laser beam. If you are experiencing this problem, consult an expert or the laser tube manufacturer to determine the cause of the problem.

7. Laser tube does not emit laser light

There could be several reasons why the laser tube is not emitting laser light. Some possible explanations include:

a. The laser tube is not receiving enough power: Laser tubes require a certain amount of current to operate properly. If the laser tube is not receiving enough power, it may not emit laser light.

b. Damage to the laser tube: If the laser tube is damaged in some way, it may not be able to emit laser light. This may be physical damage to the laser tube or it may be the result of a manufacturing defect.

c. Laser Tube Not Properly Aligned: The laser tube needs to be properly aligned to function properly. If the laser tube is not properly aligned, it may not emit laser light.

d. Improper laser tube control: The laser tube requires a specific signal to function properly. If the laser tube is not receiving the correct signal, it may not be able to emit laser light.

It is important to note that there may be other reasons why the laser tube is unable to emit laser light. If you experience this problem, consult an expert or the laser tube manufacturer to determine the cause of the problem.

8. When the laser tube starts to work, the engraving is not deep enough to cut or engrave

Treatment
1. Check whether the support point of the laser tube is reasonable;
2. Whether the light intensity (current) is set too small;
3. Whether the optical path is offset;
4. Whether the focal length is correct;
5. Whether there are scratches and dirt on the surface of the lens;
6. Check whether the flow and pressure of cooling water are normal.

9. The machine works for a period of time after the problem of insufficient depth of engraving and cutting

Solution
1. Check whether the support point of the laser tube is reasonable;
2. Is the water temperature normal?
3. Whether the lens is hot when working;
4. Whether the flow and pressure of cooling water are normal;
5. Check whether the cooling water is clean.

10. High-voltage discharges and breakdowns occur

The reason may be:
1. The power supply is not matched or used with power supply of different specifications (using high-power laser power supply to stimulate low-power laser tubes), which exceeds the rated voltage that the laser tubes can withstand, resulting in damage to the laser tubes;

2. Poor water-cooling conditions, the cooling water does not fill the entire water-cooled tube, there are air bubbles. In the position where there is no water cooling, the local temperature is too high, resulting in changes in the melt and localized damage to the glass of the laser tube;

3. The glass material is affected by temperature, raw material, process and other factors during the production process, resulting in tiny bubbles or uneven thickness of the glass material. In this case, the weak position will be damaged during high-voltage discharge.

Checking method:
1. Check for dirt or moisture around the high voltage head of the laser;
2. Whether the high-voltage end or high-voltage connector part is too close to the metal part of the machine;
3. Whether the high voltage connecting device of the laser power supply is detached from the bracket;
4. whether the inside of the high-voltage connecting device is broken or damaged;
5. The water temperature is too low, resulting in condensation on the tube wall and water-cooling jacket.

11. How to avoid problems with the laser tube

The following are some specific recommendations to avoid problems with the laser tube:

a. Follow the manufacturer's instructions: Always read and follow the laser tube instructions provided by the manufacturer. These instructions will guide you on how to use the laser tube safely and effectively.

b. Avoid rough handling: Handle the laser tube with care, as rough handling or accidental damage may cause problems with the laser tube.

c. Keep the laser tube clean: Wipe the laser tube regularly with a clean, dry cloth and be sure to remove any debris or contaminants that may be present.

d. Regular maintenance: Follow the manufacturer's recommendations for regular maintenance of the laser tube, such as cleaning and calibrating the laser tube. This will help to ensure that the laser tube operates at its optimum.

e. Use the correct power supply: Use the correct power supply for the laser tube, as using a power supply with the wrong voltage or amperage may cause problems with the laser tube.

Following these steps will ensure smooth and stable operation of the laser tube. If you have any specific questions about how to avoid problems with your laser tube, please feel free to ask!

12. Other Problems with Laser Tubes

Many other problems can occur with laser tubes, including:

a. Low laser output power: This can be caused by a power supply failure, damage to the laser tube, or problems with the cooling system.

b. Poor beam quality: This may be due to misalignment of the resonator, contaminated optics, or a faulty laser tube.

c. Noisy: This may be caused by laser tube failure, cooling system problems or power supply problems.

d. Short life: This may be caused by laser tube failure, cooling system problems or power supply problems.

To troubleshoot these problems, all components of the laser system must be inspected to find the root cause of the problem. It may also be necessary to consult the manufacturer or a laser maintenance professional to diagnose and resolve the problem.