What is the difference between the thermal shock test chamber and the temperature cycle test chamber?
ã€concept】
Hot and cold (temperature) shock and temperature cycling can be collectively referred to as temperature change tests, which the IEC calls a change of temperature. There are two ways to change the temperature. One is to specify the conversion time, such as the two-box temperature shock box, the other is to specify the temperature change rate, the ordinary temperature and humidity or the rapid temperature change box (someone is called EES box), or even HALT boxes (HAST accelerated aging test chambers) can achieve a specific temperature change rate, as if no standard defines how much temperature change rate is called temperature shock.
ã€the difference】
1. The difference between thermal shock and temperature cycling is that the time to rest at normal temperature is different, that is, the temperature cycle is generally after the object is taken out at a cold or hot temperature, and the object is returned to normal temperature at room temperature for more than half an hour. It enters the next hot or cold ambient temperature; the thermal shock immediately enters the next temperature environment.
2. The difference between hot and cold (temperature cycle) and temperature shock is the difference in temperature change rate. This leads to the difference in the thermal expansion and contraction of the material under different temperature change rates. CTE of different materials Different abilities, if the temperature changes too fast, it will affect the retention of the material!
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