The first-order photochemical reaction is not sensitive to temperature changes. However, the rate of subsequent secondary reactions is closely related to temperature changes in the UV test chamber.
Generally, as the temperature increases, the reaction rate will increase. Therefore, temperature control is very important during the UV exposure test. More importantly, the test temperature and the material used in the accelerated test are the most encountered in practical applications.
High temperature matches. The temperature setting of the UV in the device can be any point from 50 ° C to 80 ° C depending on the illuminance level and the indoor ambient temperature.
The temperature adjustment of the device is performed by a controller with a microcomputer calculation function to direct a series of systems such as an air heater, a water heater, and the like in the device.
As the temperature increases, the destructive power of the material on the moisture increases dramatically. Therefore, temperature control is the basic requirement during wet exposure.
Furthermore, to produce an accelerating effect, it is required to maintain a high temperature environment during wet exposure. The condensing process temperature setting in the apparatus can be any point from 40 ° C to 60 ° C.
U-shaped titanium alloy high-speed heating electric heating pipe;
Temperature control and illumination are completely independent systems;
The temperature control output power is calculated by the microcomputer to achieve
high precision and rate of power consumption;
The temperature of the black aluminum plate is controlled by an intelligent Korean temperature controller, and the output power is calculated by the microcomputer, and the PID is self-tuning. Monitoring uses a standard Pt-100 blackboard temperature sensor;
The temperature of the water tank is also controlled by the Korean temperature controller. The water tank is located in the lower part of the tank and has a built-in electric water heater.
During the cycle test, one test segment is a dark condensation process that requires saturated water vapor at a higher temperature in the tank. When the water vapor encounters a relatively cold sample surface, condensation will form on the surface of the sample.
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