Materials change their properties depending on the temperature. In cold weather, elastomer seals lose their elasticity and can leak. Cars can no longer start in winter, as the car battery no longer has sufficient capacity.
In addition to the temperature level, the duration of exposure to temperature is also decisive for the thermal load. Prolonged exposure to high temperatures causes materials to age more quickly, which can reduce the lifetime of components.
Cyclic temperatures can cause mechanical, cyclic stresses in components made of materials with different temperature expansions. This can lead to thermo-mechanical fatigue of the components, such as the breakage of the copper wire in a coil overmoulded with plastic.
Temperature tests are used to simulate the thermal loads that occur in real life and to investigate their influence on the properties of materials or the function and durability of components or complete products. Common temperature tests are:
Temperature cycling test
Temperature shock test
We also carry out temperature tests with superimposed humidity. See climate tests.
Characteristic values of our climate test chambers:
Temperature range: | -70°C bis +180°C |
Humidity range: | 10% r. h. bis 95% r. h. |
Rate of temperature change: | bis 15 K/min |
Usable test space (W x H x D): | bis 1.100 x 950 x 950 mm |
Characteristic values of our temperature shock test chambers:
Type: | 1- & 3-chamber systems (with transfer basket) | 1-chamber "air to air" system (fixed test room) |
Transfer time: | < 10 s | < 10 s |
Temperature range: | -80°C bis 220°C | -65°C bis 200°C |