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1 How To Distinguish UV Aging Test Machine For UVA Or UVB

Performance of UV Weathering Test Chamber

UV weathering test chamber is another kind of photoaging test equipment, which simulates ultraviolet light in sunlight.It also recreates the damage caused by rain and dew.The equipment tests the material by exposing it to a controlled cycle of sunlight and moisture while raising the temperature.The equipment USES ultraviolet fluorescent lamps to simulate sunlight, and can also simulate the effect of moisture by condensation or spray.

Damage to materials by natural sunlight and moisture causes incalculable economic losses each year, and uv weathering Chambers can reproduce damage caused by sunlight, rain and dew.The equipment tests the material by exposing it to a controlled cycle of sunlight and moisture while raising the temperature.The equipment USES ultraviolet fluorescent lamps to simulate sunlight, and can also simulate the effect of moisture by condensation or spray.In a matter of days or weeks, the equipment can reproduce the damage that would take months or years to do outdoors.The damage mainly includes fading, discoloration, brightness decrease, pulverization, cracking, blurring, embrittlement, strength decrease and oxidation.The test data provided by the equipment can be of great help in the selection of new materials, the improvement of existing materials or the assessment of composition changes affecting the durability of products, etc., and can be an excellent predictor of the changes that products will encounter outdoors.

Although ultraviolet (UV) light accounts for only 5% of sunlight, it is a major contributor to the decline in durability of outdoor products.This is because the photochemical effects of sunlight increase as the wavelength decreases.Therefore, when simulating the destructive effect of sunlight on the physical properties of materials, it is not necessary to reproduce the entire sunlight spectrum.In most cases, you only need to simulate short-wave UV light.The reason why UV lamps are used in uv-weathering Chambers is that they are more stable than other lamps and can reproduce the test results better.It is a better method to use fluorescent UV lamp to simulate the influence of sunlight on physical properties, such as brightness drop, cracking, peeling and so on.

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