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The function and principle of high and low temperature alternating test chamber



The high and low temperature alternating test chamber is an essential test equipment for aviation, automobile, home appliance, scientific research and other fields.
 
It is used to test and determine the parameters of electric, electronic and other products and materials for high temperature, low temperature, or constant test temperature environment changes and performance.
 
High and low temperature alternating test chambers can be generally divided into programmable high and low temperature test chambers and single-point high and low temperature test chambers.
 
High and low temperature test chambers are used to test the extent to which a material structure or composite material can with stand in a continuous environment of extreme high temperature and very low temperature, as well as chemical or physical damage caused by thermal expansion and contraction.
 
Suitable objects for high and low temperature test chambers include metals, plastics, rubber, electronics, etc., which can be used as a basis or reference for product improvement.
 
High and low temperature test chamber is used to simulate the product under the combination of temperature and humidity in climatic environment (high and low temperature operation, storage, temperature cycle, high temperature and high humidity, low temperature and low humidity, etc.),
 
The refrigeration system of the test chamber adopts a cascade refrigeration system composed of imported compressors. The refrigeration system has the advantages of reasonable matching, high reliability, convenient use and maintenance, etc., and the refrigerant is expanded by the shut-off valve, and the refrigerant temperature reduce.
 
Finally, the refrigerant absorbs heat from the higher temperature object isothermally through the evaporator, so that the temperature of the object to be cooled is lowered.
 
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