Problems of laser marking machine and its application in plastics

Author: Correct Pack -Laser Marking Machine Manufacturer

Fault 1: The laser intensity drops, and the marking is not clear enough. Solution:. 1 Whether the laser resonator changes, fine-tune the resonator lens to make the output spot the best.

2 The acousto-optic crystal is offset or the output energy of the acousto-optic power supply is low, adjust the position of the acousto-optic crystal or increase the operating current of the acousto-optic power supply. 3 The laser entering the galvanometer is off-center: adjust the laser. 4 If the current is adjusted to about 20A, the photosensitive intensity is still not enough: the krypton lamp is aging, replace it with a new lamp.

Fault 2: The krypton lamp cannot be triggered (refer to the NTP power supply manual). Solution:. 1 Check all power cables.

2 The high-voltage krypton lamp is aging, replace the krypton lamp. Precautions for operating the laser marking machine. 1 It is strictly forbidden to start the laser power supply and Q-switching power supply when there is no water or the water circulation is abnormal.

2 Do not allow the Q power supply to work without load (that is, the output terminal of the Q-modulated power supply is suspended). 3 In case of abnormal phenomenon, the laser marking machine first turns off the vibrating mirror switch and the key switch, and then checks. 4 It is not allowed to start other components before the krypton lamp is ignited to prevent high voltage from entering and damaging the components.

5 Note that the output terminal (anode) of the laser power supply is suspended in the air to prevent ignition and breakdown with other electrical appliances. 6 Keep the internal circulating water clean, clean the water tank regularly and replace it with deionized water or pure water. The use and replacement of krypton lamps.

1 Turn off the water cooler and laser power. 2 Open the upper three chamber covers, take out the lamp or crystal to be replaced, put it in after replacement, and install the chamber cover. 3 Turn on the water cooler, laser power supply, adjust the current of the laser power supply to about (15~20)A, place a small piece of wood or black paper between the front diaphragm and the beam expander, you should see the spot formed by laser ablation, If not, slightly adjust the three knobs of the front film holder until the light spot appears.

4 After the laser is debugged, the three knobs of the front diaphragm holder should be adjusted repeatedly to make the light spot the strongest. If the laser is too strong and the brightness is too high to observe the UV laser marking machine, the power supply current can be reduced. 5 Turn off the power of the laser. Special attention: the time to replace the krypton lamp.

The krypton lamp in the laser factory indicates that the service life of the krypton lamp is 300 hours, but due to different user conditions, the above time cannot be used as the only basis for replacing the krypton lamp. With the increase of use time, the luminous efficiency of the krypton lamp decreases, and the laser output It also weakens accordingly. In order to obtain sufficient laser output, many users increase the current of the laser power supply to enhance the light emission of the krypton lamp, which accelerates the aging of the krypton lamp, forming a vicious circle, and sometimes leads to the phenomenon of fried lamps. In order to prevent this If the phenomenon occurs, we suggest users to decide whether to replace the krypton lamp according to the following method. When replacing a new krypton lamp, record the value of the ammeter of the laser power supply during normal marking as the standard current value. Wang material's laser marking machine is also widely used. According to different materials, several different machines can be selected to achieve different effects. Laser marking machines can be applied to numbers, texts, trademarks, etc. Or machine-readable codes, such as data matrices with high information density, arranged in compact spaces of different scales.

Precision marking: Like the metal marking machine, it also has good focusing ability, so the laser beam quality suitable for precision marking machines is high, so that the laser beam in the marking process can obtain a very small focusing diameter, through this In this way, precise marking track widths as small as nanometers can be achieved on micro-components. Adapt to absorption characteristics: The laser used for marking usually produces infrared wavelength range green laser and ultraviolet laser are aimed at the material box semiconductor material, the use of ultraviolet light wavelength in the special marking application of laser engraving machine opens up a new era New possibilities, short-wavelength photochemistry reacts directly with the material of the material, without heating, and will not cause damage to the material. Laser marking machines have played a very important role in the material industry. Zhuhai Correct Pack is a well-known laser equipment manufacturer in China. It has been focusing on the development and production of laser equipment for 12 years, providing customers with a complete set of laser equipment solutions, and creating cost-effective laser equipment. Main business: UV, co2, fiber laser marking machines, laser radium engraving machines And other cost-effective laser equipment, national service hotline: 400-0098-266https://www.xmslaser.com/.