Why should the cold and hot shock box be pre-heated?

The reason for setting the preheating of the cold and hot shock box is mainly to improve the accuracy and reliability of the test results. In the cold and heat shock test, the tested items usually need to undergo rapid temperature changes, so the preheating process is necessary. The purpose of preheating is to make the temperature inside the shock chamber reach a stable state and close to the required test temperature. In this way, when the tested item is put into the impact box, the impact box can reach equilibrium more quickly, reducing the impact of temperature fluctuations on the test results.In addition, preheating can also help the equipment better control the temperature change during the test, avoid excessive temperature fluctuations, and ensure the stability of the test. This not only helps to obtain more accurate test results, but also extends the service life of the device. In general, preheating is an important part of the cold and heat shock box. It can improve the accuracy and reliability of the test results, and also protect the equipment to maintain good performance during long-term use.