1.ambient temperature test, simulating various types of extreme environments have a lot of impact on the product, such as reliability, oxidation, chemical changes, thermal diffusion, electromigration, metal migration, melting, vaporization deformation, etc., usually the surrounding environment for every 10 ℃ rise in the life of the product will be reduced to a quarter; when the surrounding ambient temperature rises by 20 ℃, the life of the product will be reduced by half, the life of the product to follow the “10 ℃ rule”, thus high temperature test as a super common test for components and machine screening, reliability testing, life testing, accelerated life testing, while playing an important role in the verification of failure analysis.
2.the same, low temperature also has many effects on the product, such as embrittlement, icing, viscosity increase, curing, control of mechanical strength and physical shrinkage, etc., low-temperature test is used to assess the adaptability of the product in the low-temperature environment for storage and use, and is often used in the product in the development stage of the type test, screening test of components and so on.