Equipment summary:

RT-308 UV Accelerated Aging Testing Chamber can simulate the sun, rain, and dew to damage the material, using a UV lamp to simulate the effect of sunlight, cold rain, and dew. Test materials are placed in a certain environment where the light and moisture alternate. The materials are tested for several days or weeks, and you can know the damage of the material on the outside for several months or several years. Damage types include: bleaching, discoloration, loss of light, powder, crack, turbidity, bubble-based, embrittlement, strength decline, and oxidation.

Main functions:

UVA340 test machine, the UV lamp can simulate the effect of the sun, and the condensation and water spray system can simulate the effect of rain and dew. the temperature can be controlled at the process of testing. A typical test cycle involves exposure to UV radiation, high temperature, and 100% humidity in the dark; it is typically used in paint and coatings, automotive, plastic products, wood products, glue, etc.

Corresponding standard：

Accord with ASTMG53-77, GB﹑GJB﹑MIL﹑ASTM﹑CNS﹑IEC﹑JIS﹑AATCC﹑DIN﹑Fed Test﹑BS﹑SAE

Applicable industries：

It is widely used in paint, resins, plastics, printing and packaging, aluminum, adhesives, auto, cosmetics, metals, electronics, electroplating, medicine, etc.

Technical parameter:

Main feature:

1, simulated sunlight

The sun’s ultraviolet ray mainly causes the damage of material durability. We use UV lamps to simulate sunlight in the ultraviolet part of the short-wave; they produce very little visible or infrared spectral energy. We can choose according to different testing requirements of different wavelengths of UV ultraviolet light, because each lamp in the total energy and wavelength of UV radiation are not the same. Usually, UV lamp can be divided into two kinds of UVA and UVB.

2, UV lamp type

UVA-340 lamp: UVA-340 lamps can simulate short-wave UV light in the sunlight excellently, ie sunlight from 365nm to 295nm cutoff wavelength.

UVB-313 lamps: UVB-313 lamps are usually issued by short-wave UV radiation than the Earth’s surface in the strong solar ultraviolet radiation, which can speed up the greatest degree of material aging. However, the lamp may have caused some of the material to appear damaged. UVB-313 lamp is mainly used for quality control and research and development, or on the weatherability of materials strong run the test.

UVA-351 lamp: Simulation of UV sunlight through windows, it is the aging of indoor materials for testing the most effective.

3, moisture condensation environment

In many outdoor environment, the material wet day time can be up to 12 hours. The results show that this result is the main factor of outdoor wet dew, not rain. UV condensation through a unique function to simulate the outdoor wet erosion. Condensation during the test cycle, the test chamber at the bottom of the reservoir, water is heated to generate superheated steam to fill the entire test chamber, hot steam to the test chamber maintained at 100% relative humidity, and maintain a relatively high temperature. Sample is fixed in the test room wall, so the test sample surface exposed to ambient air in the test room. The outward face of the sample exposed to the natural environment has a cooling effect, leading to internal and external surface of the sample with temperature, the temperature difference causes the appearance of the sample in the whole process of condensation cycle, the test surface always have condensation of liquid water generated.
Because exposure to humid outdoor exposure time up to ten hours a day, so a typical condensation cycle usually lasts several hours. UV offers two of the most simulations. The most widely used is the condensation method, which simulates the best way of outdoor wet erosion. All models can be run UV condensation cycle. Conditions because some applications require the use of water spray in order to achieve practical results, some condensation cycle UV models can be run either run the water spray cycle.

4, the temperature control in each cycle, the temperature can be controlled at a set value.

At the same time the board can monitor the temperature of the thermometer. Higher temperature can accelerate the aging process, while temperature control for reproducibility of the test is also very important.

5, the water spray system for some applications, the water spray can better simulate the end use of the environmental conditions.

Water spray in a simulated drastic change in temperature and rainfall caused by the thermal shock or mechanical erosion is very effective. Conditions in some practical applications, such as sunlight, heat together the stroke of showers dissipated rapidly, the material will be dramatic changes in temperature, thermal shock, thermal shock for many materials, this is a part oftest. UV water spray to simulate thermal shock and/or stress corrosion.Sprinkler system with 12 nozzles, each side in the test room of 6; sprinkler system can run a few minutes and then shut down.This short cooling water samples quickly and create a thermal shock conditions.

6, irradiation intensity control:

An optional matching light intensity control option is available to accurately type and reproducible results; the light intensity control system allows users to set different requirements for different test light intensities. Feedback loop devices through its precise control of light intensity, can also extend the life of fluorescent lamps

Main structure:

1.Box made by numerical control equipment, advanced technology, smooth lines, elegant appearance

2.Box material is 1.2 mm-thick 304SUS stainless steel

3.The air duct in the oven adopts a single-cycle system, with the import of an axial flow fan, To improve the air flow, heat ability, and greatly improve the uniformity of the temperature in the cabinet

4. Tube: Special UV lamp, 2 rows, 8PCS、40W/PC

5. Lamp Lifetime: more than 1600h

6. Water supply and consumption： Tap water or distilled water about 8L/day

7. Both sides were installed in the studio 8PCS UVA or UVB lamp

8. Heating method: Bladder tank type heating, heats up fast, temperature distribution uniformity

9. Tank cover: double flip, easy shut down.

10. The tank’s water level automatically fills water, preventing damage to the heat pipe air from burning.

11. The sample frame is made from stainless steel or aluminum alloy.

12. Machine bottom using high high-quality PU wheel fixed

13. Drainage system using U-type drainage device

14. The test sample surface with UV light plane in parallel

15. Internal installation of an automatic sprinkler spray system, the water pressure is adjustable