low temperature chiller is used in laser cutting machines for cooling and thermal deformation suppression of precision lenses, and its functions are mainly reflected in the following aspects:

1. temperature control: low temperature chiller can provide constant low-temperature cooling water to ensure the stability of the internal temperature of the laser cutting machine. For instance, the temperature control accuracy of the Teyu CWUP-40 ultrafast laser chiller can reach ±0.1℃, which can effectively reduce thermal expansion and contraction and thermal deformation caused by temperature fluctuations, thereby maintaining the stability and reliability of processing accuracy.

2. Prevent condensation and cracking due to freezing: In winter, if the ambient temperature drops below 5℃, the water in the chiller may expand or solidify, causing damage to key components such as the laser and waterways. Therefore, the ambient temperature must be raised above 5℃, and anti-freezing measures should be taken, such as adding special antifreeze, keeping the chiller in operation, or completely draining and blowing out all the moisture in the system. In addition, condensation on the laser is not covered by the warranty, so special attention should be paid to the control of environmental temperature and humidity.

3. Suppress thermal deformation: In precision machining, changes in temperature can cause thermal expansion and contraction of materials and equipment, thereby affecting machining accuracy. By using the low temperature chiller, the equipment temperature can be effectively controlled, the thermal deformation caused by temperature fluctuations can be reduced, and thereby the processing accuracy can be improved. For instance, in the cooling of astronomical telescope mirrors, it is necessary to maintain the uniformity of the mirror surface temperature within ±0.02℃ through a cooling system to prevent deformation caused by temperature gradients.

4. Extend equipment lifespan: Temperature control not only affects processing accuracy but also directly influences the service life of the equipment. By controlling the temperature of the laser and the cutting head, the chiller can reduce the wear and failure caused by overheating of the equipment, thereby extending the service life of the equipment.

5. Adaptability to different materials and processes: When laser cutting thick materials or metals with good thermal conductivity (such as copper and aluminum), more precise temperature control is required. The high-precision laser chiller can ensure a temperature difference control of ±0.1℃, effectively reducing the impact of thermal effects on cutting accuracy. In addition, for plastic laser cutting machines, the industrial chiller can set the minimum water temperature at 5℃, but it is necessary to ensure that the cooling capacity matches the thermal load of the laser tube.

6. Maintenance and Care: To ensure the normal operation of the chiller, regular maintenance is required, including cleaning the condenser, checking the refrigerant, and replacing the cooling water, etc. The use of deionized water or dedicated coolant can prevent scale and biological contamination, thereby ensuring the efficient operation of the cooling system.

low temperature chiller plays a crucial role in the cooling and thermal deformation suppression of precision lenses in laser cutting machines. Through precise temperature control and effective anti-freezing measures, the stable operation and high-precision processing of the equipment can be ensured.