The photovoltaic module ultraviolet aging test box is a non-metallic material aging test equipment for sunlight resistance and artificial light source. Widely used in coatings, inks, paints, resins, plastics, printing and packaging, adhesives, automobile and motorcycle industry, cosmetics, metals, electronics, electroplating, medicine, etc .; necessary testing equipment for aviation, automobiles, home appliances, scientific research and other fields.
Photovoltaic module ultraviolet aging test chamber uses fluorescent ultraviolet light to simulate the destructive effect of sunlight on durable materials. The fluorescent ultraviolet lamp is similar to the ordinary cold-light fluorescent lamp for lighting in electrical principle. But it can generate more ultraviolet light than visible light or infrared light.
The photovoltaic module UV aging test chamber is suitable for different exposure applications. There are different types of lamps with different spectrums to choose from. The UV-230 type lamp can well simulate sunlight in the main short-wavelength ultraviolet spectrum range. The spectral energy distribution (SPD) of the UV-340 lamp is very similar to the spectrogram separated from the solar spectrum at 230 nm. The uv-230 type lamp is also commonly used in accelerated artificial weathering test lamps. It destroys materials faster than UV-A lamps, but its shorter wavelength energy output than 360nm will deviate from the actual test results for many materials.
Irradiance (light intensity) control is necessary to obtain accurate and reproducible results. Most photovoltaic module UV aging test chambers are equipped with an irradiance control system. These precise irradiance control systems enable users to select irradiance measurements when conducting experiments. Through the feedback control system, the irradiance can be continuously and automatically monitored and accurately controlled. The control system automatically compensates for the lack of illumination due to lamp aging or other reasons by adjusting the power of the lamp. Fluorescent ultraviolet light simplifies the control of irradiance due to its inherent spectral stability. All light sources will weaken over time. But fluorescent lamps are different from other types of lamps in that their spectral energy distribution does not change with time. This feature improves the reproducibility of the test results and is therefore a major advantage.
Tests have shown that there is no significant difference in the output power of a lamp using 2h and a lamp using 5600h in an aging test system equipped with irradiance control. The irradiance control device can maintain a constant light intensity. In addition, their spectral energy distribution is also unchanged, which is very different from xenon arc lamps. One of the main advantages of using the photoaging test box is that it can simulate the destruction of the material in a more realistic outdoor humid environment. When the material is placed outdoors, according to statistics, it is frequently exposed to moisture for at least 12 hours a day. Because this damping effect is mostly in the form of condensation, a special condensation principle is used to simulate outdoor humidity in the accelerated artificial weathering test.
Because the material is generally exposed to moisture for a long period of time, a typical circulating condensation system requires at least 4 hours of test time. The condensation process is carried out under heating conditions (50 ℃), which will greatly accelerate the rate of moisture damage to the material. Long-term, condensing cycles under heating conditions are more effective than other methods such as water spraying, dipping, and other high-humidity environments to reproduce the phenomenon of damaging materials in a humid environment.
Usually such a test is carried out, and it only takes a few days or a few weeks. The ultraviolet aging test box of the photovoltaic module can reproduce the damage caused by outdoor months or years. The damage caused includes discoloration, discoloration, decreased brightness, chalking, cracking, blurring, embrittlement, reduced strength, and oxidation. The professionally provided test data is of great help in the selection of new materials, the improvement of current materials or the evaluation of composition changes that affect product durability. Zhongke Cologne's photovoltaic module UV aging test box can excellently predict the changes that the product will encounter outdoors.
Aisili specializes in the production of test equipment such as ultraviolet aging test chambers for photovoltaic modules, high-temperature accelerated aging test chambers, ventilation aging test machines for photovoltaic modules, and has many years of production experience. Professional production environment testing equipment.
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