Winter is coming. As a user of the laser cutting machine, it is necessary to do a good job in the low temperature antifreeze of the fiber laser. What should be paid attention to when changing the water of the chiller in winter? Let’s take a look:
1. Keep the chiller running
Under the condition that there is no power failure in the local area, the chiller can be kept running, and the low temperature water and normal temperature water are set at about 5 ℃ to ensure that the cooling water is higher than the freezing point, does not freeze, and saves electricity;
2. Drain the cooling water in the machine
The operator shall drain the cooling water in the laser and chiller after each use.
Drainage method of chiller:
Remove the water pipe at the water inlet from the chiller, and then ventilate the water inlet with compressed gas until the residual water in the chiller is blown out.
Drainage method of multimode laser:
Remove the water pipe at the water inlet from the laser, and then ventilate the water inlet with compressed gas until the residual water in the water-cooled pipe inside the laser is blown out of the water outlet.
Drainage method of single-mode laser:
Remove the water pipe at the water inlet from the laser, and then ventilate the water inlet with compressed gas until the residual water from the water cooling pipe inside the laser is blown out of the water outlet. Then plug the water inlet and outlet with water pipe (or rubber plug) to prevent dust from entering the water pipe.
3. Replace cooling with antifreeze
When the operating environment is frequently powered off and the cooling water cannot be drained every day, antifreeze must be used.
