Nanosecond solid-state lasers are also afraid of cold, so pay attention to antifreeze

Winter RFH Nanosecond Laser Maintenance Collection

The cold weather is approaching, and the temperature continues to drop across the country. When we add clothes to ourselves, we must not forget to take anti-freezing measures for the laser.

Why do we need to protect the laser from freezing?

As we all know, the density of ice is less than that of water. Once the cooling water flowing through the core components inside the laser freezes, the volume will expand, which may cause serious damage to the pipeline, which will seriously affect the safety of the core components and cause major losses.

On the other hand, lasers are divided into air-cooled radiators and water-cooled radiators. Their role is to conduct the heat generated inside the laser to protect and maintain the normal operation of the laser. They use different heat transfer media. The air-cooled laser adopts solid conduction with built-in cooling system and wind cooling. The water-cooled laser uses liquid conduction such as cooling water to cool down. Therefore, once the liquid freezes in the cold temperature, it will have a big impact on the water-cooled laser.

Of course, when the laser is running, the water will not freeze when it is flowing, but once the temperature is low, if the laser is not working, the cooling water of the laser cannot be emptied in time after production and use. , And without adding antifreeze, etc., it may cause the water to freeze.

 Once the cooling water of the laser is frozen, it may cause the internal cooling pipeline of the laser to be broken, causing liquid leakage and so on. At this time, the electrical components and optical devices inside the laser will be damaged to varying degrees, and even cause the laser to be scrapped and unable to be repaired. Greatly affects the production schedule, and the gains outweigh the losses.

Winter RFH Laser Maintenance Collection

Therefore, in the maintenance of the laser in winter, the following points should be paid attention to:

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One is to control the ambient temperature in strict accordance with the instructions. If necessary, air conditioning or heating facilities can be installed to prevent the laser from freezing and ensure its continuous and stable operation.

The second is to drain the cooling water in time after production. The method is to blow in clean, oil-free compressed air or nitrogen within a suitable pressure range from the water inlet (due to high pressure, the laser pipeline may be damaged), which can effectively drain the remaining coolant in the pipeline .

The third is to keep the chiller running if it is shut down for a short time or when it is on standby. Its continuous flow will delay icing to a certain extent.

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Fourth, rationally add antifreeze such as ethylene glycol. When adding antifreeze, you should carefully check the laser instructions. Check its clear requirements for coolant. Such as: whether it is possible to add coolant, whether there are requirements for the type of certified coolant, and the antifreeze grade of the coolant to be added reasonably.

Fifth, carry out daily maintenance of the laser in strict accordance with the instructions. Pay attention to the working environment of the laser, ensure its cleanliness, avoid dust, and clean the lens regularly to improve the service life of the laser.

Although the RFH laser is extremely simple to operate and very convenient to use, for precision instruments, maintenance must be done in time according to the requirements of the manual, especially in harsh environments. Maintaining the characteristics of the laser can ensure the long-term stable and efficient use of the equipment and extend the life of the equipment.