QUV紫外光老化试验机 {QUV ultra violet light damage tester}

Ultraviolet light is the main cause of degradation of almost all materials exposed outdoors. The UV aging test simulates the UV light in the sunlight. The UVA-340 lamp can best simulate the short wavelength of sunlight. It is particularly suitable for comparing performance differences between different types of polymers and stabilizers. It is the best tube for material correlation studies.

Features:

◆Automatic control system with man-machine writing...

◆The machine has condensation, explosion, spray, temperature and humidity function...

◆The original imported QUV tubes meet international test requirements...

◆Self-developed high-efficiency irradiation, display and automatic regulating function...

◆Built-in automatic water filtration system and automatic water refill device

◆Machine multiple alarm detection, configure wireless remote alarm function

UV weathering test provides two kinds of wet simulation methods. The most widely used is the condensation method, which is the best way to simulate outdoor wet erosion. All UV weathering tester models can run a condensation cycle. Because some application conditions also require the use of water spray to achieve practical results, UV weathering tester models can run both condensation and water spray cycles.

Condensation

In many outdoor environments, the material can be wet for up to 12 hours per day. Studies have shown that the main cause of this outdoor dampness is dew, not rain. The UV Weathering Tester simulates outdoor moisture erosion through a unique condensation function. During the condensation cycle, water vapor is generated by heating the water tray at the bottom of the tester. Hot steam keeps the test chamber at 100% relative humidity at higher temperatures. In the design of the UV weathering tester, the specimen actually forms the side wall of the test chamber, and the backside of the specimen is exposed to the laboratory room air. The cooling effect of indoor air causes the surface temperature of the sample to be several degrees lower than the water vapor temperature, thus ensuring that water vapor will continuously condense on the surface of the sample. This condensate is a very stable pure distilled water.

Water spray

Under certain practical conditions, such as sunlight, the accumulated heat rapidly dissipates due to a sudden shower of rain, the temperature of the material will change drastically, resulting in thermal shock, which is a kind of thermal shock for many materials. test. The water spray of the UV weathering tester can simulate thermal shock and /or stress corrosion.

Application standard：

UV and sunlight simulation

Ultraviolet light is a major factor in photodegradation of outdoor products. The fluorescent UV lamp of the UV Weathering Tester simulates the most important short-wavelength UV light in sunlight and reproduces the aging of the physical properties of the material caused by the light. There are several different UV lamps available depending on the test conditions. See the UV Weathering Tester's technical documentation for details.

UV tubes

UVA-340 Tubes. UVA-340 Tubes are excellent for modeling short-wavelength UV light in sunlight, from the wavelength range of 365 nm to the solar cut-off point of 295 nm.

UVB-313 Tubes. UVB-313 tubes emit short-wavelength UV light that is stronger than the sun's UV rays, which are normally exposed to the Earth's surface, to maximize material aging. However, the lamp may cause unrealistic damage to some materials. UVB-313 lamps are mainly used for quality control and research and development, or for running tests on highly weatherable materials.

Technical Parameters: