The reason why the UV aging test box uses UV lamps is that they are more stable than other lamps, and can better reproduce the test results. Using fluorescent UV lamps to simulate the effects of sunlight on physical properties, such as brightness reduction, cracking, and flaking, is the best method. There are several different UV lamps to choose from. Most of these UV lamps mainly produce ultraviolet light instead of visible light and infrared light. The main difference between lamps is the total UV energy they produce in their respective wavelength ranges. Different lamps will produce different test results. The actual exposure application environment can prompt which type of UV lamp should be used.
1. UVA-340 ultraviolet lamp
UVA-340 ultraviolet light is the best choice for simulating sunlight ultraviolet light (photoaging).
UVA-340 can perfectly simulate the sunlight spectrum of the critical short-wavelength range, the spectrum of the wavelength range is 315 ~ 400nm, and its luminescence spectrum energy is mainly concentrated at the wavelength of 340nm.
Most test requirements recommend the use of UVA-340 ultraviolet lamps, which simulates the situation after summer noon sunlight, UVA-340 ultraviolet aging lamp has an emission peak at 340nm.
2. UVB-313 ultraviolet lamp
The UVB-313 ultraviolet lamp is used for the most accelerated test (accelerated aging).
The short-wavelength UV used by UVB-313 UV lamps is stronger than the UV light waves commonly found on the surface of the earth. Although these UV lights are much shorter than natural wavelengths, they can accelerate the test to the greatest extent. The wavelength range is 280-315nm , Its luminescence spectrum energy is mainly concentrated at the wavelength of 313nm.
The test results that need to accelerate the aging speed are recommended to use UVB-313 ultraviolet lamp, UVB-313 ultraviolet lamp has an emission peak at 313nm.
3. UVC-365 ultraviolet germicidal lamp
The luminous spectrum energy of UVC-365 ultraviolet germicidal lamp is mainly concentrated at 365nm wavelength.
It is recommended to use UVC-365 ultraviolet sterilization lamp for the detection test that needs sterilization result. UVC-365 ultraviolet sterilization lamp has an emission peak at 365nm.
The advantages of the fluorescent lamp of the ultraviolet aging test machine are: fast access to test results; simplified illumination control; stable spectrum; less maintenance required; cheap price and reasonable operating cost.
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