These points allow you to fully understand the equipment of hot and cold shock test

Different from ordinary high and low temperature test equipment, hot and cold shock test equipment is mainly used to test the resistance of finished products, semi-finished products or raw materials to extremely cold or extreme hot ambient temperature
.
This situation is similar to the case
of discontinuous high or low temperatures.
Hot and cold shock test equipment can make various items complete the test
in the shortest possible time (3-5 minutes).
Due to the extremely short impact time, heating and cooling need to use high-power, high-tech, high-cost methods, which can super simulate the physical damage
caused by thermal expansion and contraction in the real environment.
Using the microcomputer PID system, the valve of the corresponding heat storage tank is opened according to the action needs, and the cold and hot temperatures in the heat storage tank are introduced into the product box of the test equipment to achieve the effect of
rapid cold and thermal shock test.
The balanced temperature regulation control system (BTC) + specially designed supply air circulation system controls the SSR in a P.
I.
D.
manner, so that the heating capacity of the system is equal to the heat loss, so that it can be used
stably for a long time.
The performance of the equipment for the hot and cold shock test can be understood from the following aspects: working space, temperature gradient, temperature change rate, test room temperature and humidity, temperature and humidity stability, temperature and humidity fluctuations, temperature and humidity setpoint, actual temperature, space temperature difference, temperature limit value
.
1.
Temperature and humidity fluctuation: After the temperature of the laboratory is stable, the difference
between high temperature and low temperature at any point in the working space within the specified time interval.
2.
Working space: Generally speaking, it refers to the volume of
equipment.
3.
Temperature gradient: After stabilization, in any time interval, the average temperature difference
between two points in the workspace.
4.
Actual temperature: After the temperature of the chamber is stabilized, the temperature at any point in the working space of the test chamber is obtained
from the reading displayed on the controller by the sensor.
5.
Temperature stability: The temperature of all points in the working space reaches and remains within the given tolerance of the temperature set value, which is commonly known as temperature uniformity
.
6.
Space temperature difference: After stabilization, the difference between the average temperature between the center of the workspace and other points in the workspace in any time interval is called temperature uniformity
.
7.
Temperature change rate: the rate
of transition between two temperatures measured in the center of the work area.
8.
The temperature of the laboratory: refers to the temperature conditions
of some parts of the base that can meet the standard requirements in a closed space.
9.
Temperature setting value: Through the setting of the laboratory control system, the temperature of the equipment for the thermal shock test reaches the required temperature
.