What are the similarities between the two-box thermal shock Test Chamber and the Three-Chamber thermal shock Test Chamber?

working principle

Two-box thermal shock Test Chamber—dynamic shock

During the test, first adjust the temperature of the high-low temperature box to the test state, and then move the stainless steel basket of the slide rail up and down to test the rapid conversion of the temperature. The conversion time is set by the computer and is less than 15 seconds. During this period, in order to reduce the interference between high-low temperature and improve the test accuracy, the design of the rotating basket device is particularly important.

The upper and lower two-box structure of the two-box cold and hot impact, the conversion speed is fast, the recovery time is short, the operation is simple, the air duct circulation system is reasonable, and the temperature distribution is uniform. The test room only needs to move the test piece to the corresponding working chamber through the boom, and the energy loss is relatively small

Three-Chamber thermal shock Test Chamber—dynamic shock

The high-low temperature air valves in the impact temperature test room are automatically controlled by the instrument to switch between low temperature or high temperature storage chambers, forming a closed air circulation system with the high temperature box or low temperature box respectively, so as to quickly reach the target temperature of the test. The test area is the largest The change can reach - 60 ℃ ~ 150 ℃. In order to improve the fluctuation, uniformity and other parameters of equipment operation, the Test Chamber of the Test Chamber generally adopts forced axial flow "divergent" circulating air.

Same point

1. Need Air Compressor

2. High power, 380V voltage, more than 16m2 lines

3. At least two (4P+6P) compressors are required

Video explanation