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Application of UV accelerated aging test chamber:

2022-07-08

UV accelerated aging test chamber 1.

Simulated sunshine: Ultraviolet rays in the sun is the main factor in which most material durability is destroyed. We use ultraviolet lamp to simulate short-wave ultraviolet portions in the sun, which produces little visible light or infrared spectral energy. We can choose different wavelength UV ultraviolet lamps based on different test requirements, because each lamp is different in total ultraviolet irradiation energy and wavelength. Typically, the UV lamp can be divided into UVA and UVB.

In many outdoor environments, the moisture time of the material can be long. 12 hours. Studies have shown that this main factor in this outdoor damp is dew, not rain. Simulate damp erosion of outdoor through unique condensation function. In the condensation cycle during the test, the water in the bottom reservoir in the test chamber is heated to generate thermal vapor, full of the entire test chamber, and heat steam to maintain the relative humidity in the test chamber by 100%, and maintain a relatively high temperature. The sample is fixed to the side wall of the test chamber, so that the test surface of the sample is exposed to the ambient air in the test chamber. A side of the sample is exposed to the natural environment with a cooling effect, resulting in a temperature difference in the surface of the sample, which causes the sample in the entire condensation cycle, and its test surface has a condensed liquid water. 3.

In each cycle, the temperature can be controlled in one Set value. At the same time, the blackboard thermometer can monitor the temperature. The increase in temperature can accelerate the aging process, and the temperature control is also important for the reproducibility of the test. Spraying system:

For some applications, water spray can be better Simulate the environmental conditions used by ZUI. Water spray is very effective in simulation of thermal impact or mechanical erosion caused by temperature dramatic and due to rainwater. Under certain actual applications, such as in the sun, the amount of heat is quickly dissipated due to a sudden drop shower, the temperature of the material changes sharply, producing a thermal shock, which is a kind of material for many materials. test. The water spray of the UV test chamber can simulate thermal shock and / or stress corrosion.

The spray system has 12 nozzles, and there are six in each side of the test chamber the sprinkler system can run a few minutes and then close. This short time spray can cool the sample and create a thermal impact.
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