Working principle and application of xenon lamp test box and ultraviolet aging box

Xenon lamp weather resistance test chamber is mainly used to provide corresponding environmental simulation and accelerated aging test for scientific research, product development and quality control. It can simulate the natural environment such as sunlight, rain and dew, and take several days or weeks to achieve the damage that occurs outdoors for months or even years.

Ultraviolet weather resistance test chamber is suitable for aging test of non-metallic materials against sunlight and artificial light sources.

In natural conditions, sunlight irradiation and climate are the main causes of damage to paints, plastics, inks and other polymer materials. Such damage includes discoloration, loss of gloss, cracking, yellowing, peeling, embrittlement, reduced strength Floor. Even indoor light and sunlight transmitted through glass windows can cause some materials to age, such as causing fading or discoloration of pigments and dyes.

For manufacturers, the aging and light resistance of products is extremely important. Accelerated testing equipment for aging and light stability is widely used in research and development, quality, control and material verification. Xenon lamp test chambers and UV aging chambers provide fast and repeatable test results.

The best way to test anti-aging and light stability is often controversial. In recent years, various methods have been applied, and most researchers now use natural exposure methods, xenon lamps or ultraviolet light accelerated aging test equipment. The natural exposure test method has many advantages, practical, cheap and easy to operate, but most manufacturers are reluctant to wait a few years to observe whether a new and improved product design is really improved.

The xenon lamp test box and the ultraviolet accelerated aging test box are the most widely used accelerated aging testing equipment. The testing principles of these two testing equipments are completely different. The xenon lamp test chamber simulates all the spectrum of sunlight, including ultraviolet (UV), visible light and infrared (IR). The xenon lamp spectrum basically matches the spectrum of sunlight in the range of 290nm to 800nm. Xenon lamp test chambers are used to test many products, which are sensitive to ultraviolet long wave band, visible light and infrared.

The UV aging box cannot simulate full spectrum sunlight. Its principle is that for durable materials that are exposed outdoors, the short-wavelength of ultraviolet 290 ~ 400nm is the most important cause of aging damage. It can be seen from this that in the short-wave region of ultraviolet light, that is, from 365nm to the lowest wavelength of sunlight, the ultraviolet aging box can simulate sunlight well, however, it will be powerless for longer wavelengths.

The best method for testing comes from the testing needs. The appropriate testing equipment should be selected according to the product or material being tested, the final application conditions, the degradation mode considered and the wavelength range. For details, please consult the sales department of Beijing Yashilin Test Equipment Co., Ltd.

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