Rapid temperature change test is used to determine the adaptability of products to storage, transportation and use in the climate environment with rapid changes of high temperature and low temperature. The test process generally takes normal temperature → low temperature → low temperature residence → high temperature → high temperature residence → normal temperature as a test cycle. Verify the change of functional characteristics of the sample after temperature change or continuous temperature change environment, or the operation functionality in this environment.
Rapid temperature change test is usually defined as the temperature change rate ≥ 3 ℃ / min, which changes between a certain high temperature and low temperature. The faster the temperature change rate, the larger the high / low temperature range and the longer the time, the more strict the test is. Temperature impact usually has a more serious impact on the part close to the outer surface of the equipment. The farther away from the outer surface, the slower the temperature change, and the less obvious the impact. Transport cases, packaging, etc. will also reduce the impact of temperature impact on closed equipment. Sharp temperature changes may temporarily or permanently affect the operation of the equipment.
Scope of application
Rapid temperature change test is widely used in electronic and electrical, vehicle, medical treatment, instrumentation, petrochemical and other fields, complete machine, components, packaging, materials, etc.
Method standard
Test standard reference: GB / T 2423.22, IEC 60068-2-14, en 60068-2-14.
