There is a clear difference between the temperature shock test box and the high and low temperature test box, and the most obvious difference is in the following aspects:
1 The temperature shock is mainly reflected in the efficiency of frequency conversion. It can convert the temperature within five seconds at the fastest, and the recovery time is five minutes. The temperature impact test chamber is capable of continuously impacting from high to low, and then from low to high in such a short time. The temperature change rate of the high and low temperature test chamber is determined according to the speed of the test chamber heating and cooling. The heating rate is generally 1 ~ 3 ℃ / min, and the cooling rate is generally 0.7 ~ 1 ℃ / min. It takes a lot longer, and the working methods of the two test chambers are different, so the production costs are also different, resulting in a much different equipment price.
2 The former is suitable for environmental simulation tests on the physical and other relevant characteristics of the product. Through testing, it can be judged whether the performance of the product can still meet the predetermined requirements for product design, improvement, identification and factory inspection. The latter is suitable for the reliability test of high and low temperatures of industrial products. The components and materials of related products such as ship weapons, universities, scientific research units and other related products are tested under the conditions of high and low temperature (alternating) cycles index.
The different characteristics between the two have caused different factors such as working methods, production costs, value levels, etc., so there is a big difference in quotation.
Factors causing the difference between temperature shock test box and high and low temperature test box
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