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What are the temperature shock methods for thermal shock test chambers?

thermal shock chamber  is used to test a product's ability to withstand extremely high and low temperature environments and to quickly observe the chemical or physical changes caused by the thermal expansion and contraction of the test sample.


To meet different market demands, thermal shock test chambers can be categorized into the following three types based on the temperature shock method used:

Door-Type Air Thermal Shock Test Chamber

Also known as an "incubator," this type includes a high-temperature chamber and a low-temperature chamber. It primarily uses a motor to trigger the movement of a basket, placing the product into the basket and then transferring it between the chambers to achieve high and low temperature conversion. This is a dynamic product. The temperature shock transition time can be completed within just 15 seconds, and the recovery time is no more than 5 minutes.

The door-type device does not require additional exhaust time. It uses a motor to drive the basket up and down. However, it has the downside of mechanical wear due to this movement, necessitating regular maintenance. This type of thermal shock test chamber requires more time and money for upkeep.

Flip-Type Liquid Thermal Shock Test Chamber

Silicon oil is injected into the high-temperature and low-temperature chambers, with the test product placed in a basket that continuously moves between the chambers to achieve drastic temperature changes. Unlike the aforementioned flip-type test chamber, this type of thermal shock test chamber has a faster temperature transition rate.

Three-Chamber Thermal Shock Test Chamber

This type, featuring high-temperature, low-temperature, and ambient temperature chambers, is a static product. The test product remains in the ambient chamber during testing. It only needs to open and close the dampers between the high-temperature chamber and the ambient chamber, as well as the low-temperature chamber and the ambient chamber, to create the high and low-temperature shock effects. Since this test device requires exhaust time, the temperature in the test chamber can quickly return to ambient, facilitating the loading and unloading of test samples.


Additionally, since the test product does not require a motor to move it, this static testing method not only saves energy but also reduces wear on the equipment components. This type of thermal shock test chamber remains relatively stable during testing, with temperature shock transitions completed within 3 seconds and recovery time, like the flip-type, within 5 minutes.

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