We often found these situations that laser tube may appear under power or no light,lifetime short, laser tube occur unrepairable damage etc. In the daily processing of laser engraving and cutting, most of the reasons is that the daily maintenance of the laser tube is not enough.Let’s talk about the working condition of laser tube and operating common problems analysis and solution.
Note the use of the laser tube
1. The laser tube cooling
Please use the cooling water is turned on, so that the water flow in accordance with the requirements of low prices in the laser tube circulation. Adjust the position of the outlet pipe, ensure that the cooling water pipe filled with water cooling, there is no bubble in the tube, and then turn on the power.
Requirements: Use soft water (distilled water or purified water) as the cooling water, and always pay attention to the cooling water temperature, the water temperature should be controlled between 15 ℃ -25 ℃, can not be too high or too low. Especially in summer, the water temperature is too high if it is found necessary and timely replacement of cooling water or down a period of rest; cold regions, to ensure that the cooling water does not freeze, especially after laser shutdown, there can be cooling water retention in the laser tube to avoid cooling water freezes resulting in laser tube burst. (Special Note: The use of alternating current users, cooling water tank must be grounded);
Flow of cooling water to control the 2L-4L / min, otherwise the cooling effect is not good, it will cause mode hopping spot variations cause the laser tube power down; cooling water return outlet (outlet) must be submerged in the tank, otherwise every time off, the boot will cause the laser tube cooling pour dissatisfaction.
2. The optimal laser tube installed anchor, the both bearing point of laser tube at the point of 1/4 of the total length of the laser tube.
3.To protect the laser tube output mirror, pay attention to protect the laser output window, avoiding the process (including the process of debugging the optical path) sputtered smoke generated to the output window surface. If the output of the outer surface of the window is contaminated, it will cause the laser tube power down, then the available cotton or silk cloth dipped in ethanol and gently wipe the surface of the output window;
4. In the debugging process by adjusting laser anchor or rotating laser orientation to achieve optimal output, then the laser mount.
5. Make sure to note: Avoid dust accumulation near the high voltage electrode to maintain the high voltage electrode and dried, while the high-pressure side as far as possible away from metal, to prevent high-pressure discharge ignition.
6. The use of lasers in the process, to prevent water cooling pipes Jebsen scale, this will cause clogging of the cooling water pipes, cooling effect deteriorates. Once found, the available 20% of dilute hydrochloric acid cleaning condenser, remove scale.
7. Laser glass products, fragile. When installation, to avoid local excessive force.
8. Rationalize the use of laser tube, saving energy laser, the optimal operating current of the laser tube is 16 mA.
