Rapid-Rate Thermal Cycle Chamber to test parameters required in aerospace equipment

Aerospace equipment often uses Rapid-Rate Thermal Cycle Chamber for environmental stress screening, but environmental stress screening has certain requirements for equipment, and the temperature rise and fall speed of ordinary equipment is far from meeting the requirements. So, what are the parameters of the equipment used in the environmental stress test for aerospace equipment? Let's take a look.

Aerospace equipment environment Requirements for stress test equipment:

1. In order to improve the screening efficiency, the range of screening temperature should be as large as possible.

2. Determination of temperature change rate: The temperature change rate specified in GJB 1032 is not less than 5℃/min. According to the stipulations of MIL-HDBK-2164A, the temperature change rate requirement has been increased to not less than 10℃/min.

3. Determination of holding time: It is stipulated in GJB 1032 that holding time is the time required for the difference between the average temperature of the product (three important parts) measured and the temperature of the chamber, ΔTs≤10℃.

4. Selection of the number of thermal cycles and the total screening time: The recommended number of thermal cycle screening in GJB 1032 is 10 times. To test the screening effect, 10 to 20 cycles are followed, totaling 20 to 30 times. Based on 4 h per cycle, the total screening time is 80-120 h.

5. Recommended test equipment: HYQT series Rapid-Rate Thermal Cycle Chamber of Huanyi Instrument.

The above is the explanation of the requirements for the environmental stress test equipment of aerospace equipment. If you want to know more about the parameters of the Rapid-Rate Thermal Cycle Chamber, you can visit the official website of "Huanyi Instrument".