Based on your previous focus on the control of cooling time after temperature sensing block repair in hot runner scenarios, the cooling time of the temperature sensing block can be appropriately shortened within compliant limits, but sudden cooling is prohibited.
Compliant shortening method: The surface of the temperature sensing block can be blown with clean, room-temperature compressed air in a well-ventilated environment. This can reduce the usual 2-3 hours of cooling time to about 1 hour without damaging the component.
Absolutely prohibited operation: The temperature sensing block must not be directly sprayed with cold water or low-temperature refrigerant. Sudden cooling will cause deformation of the metal substrate and irreversible stress drift in the internal temperature sensing element, making subsequent calibration and accuracy restoration impossible.
After cooling, it is necessary to confirm that the temperature sensing block has completely cooled to room temperature before starting subsequent calibration operations to avoid temperature deviations affecting the calibration results.
