UV aging chamber

UV aging chamber introduction

The UV aging chamber uses an ultraviolet lamp as the light source, and properly controls the temperature and humidity, and periodically causes the sample to condense, so as to fully obtain the damage effect of UV light, humidity and temperature on the polymer material (the aging of the material includes the material fading, loss of gloss, loss of strength, cracking, peeling, chalking and oxidation, etc.).

Ultraviolet light of UV lamps, etc. can simulate ultraviolet light, condensation and water spray systems simulate the natural environment of rain and dew. The irradiation energy and temperature were controlled throughout the test cycle. A typical test cycle is usually UV exposure at high temperature and a dark humid condensation cycle at 100% relative humidity; this typical application is in paint coatings, automotive industry, plastic products, wood products, glues, etc.

UV aging chamber NOKI parameters

UV aging chamber structures

The inner tank material is made of SUS304 stainless steel, which has good corrosion resistance and formability. The shell is sprayed with color steel, which is anti-corrosion, durable and bright in color. 304 stainless steel is also available.

There are 8 UV lamps produced by QLAB in the aging chamber, and the service life is as long as 1600 hours.

There is a heating device at the bottom of the aging chamber to provide the temperature used in the test environment, and the temperature range is 10-70 degrees.

The sample holder is placed in the middle of the aging chamber (box type), or on 2 sides (tower type).

The sprinkler head of the sprinkler system is between the lamps, and the system is controlled by a touch screen, and the injection time is controlled according to the test requirements.

The box is equipped with a Foma wheel, which is convenient to move at any time.

There is hollow heating glass on the door, which is convenient to observe the test process.

One-handed, stress-free door handle for easy operation.

Silicone sealing strip, high temperature and weather resistance, anti-aging, anti-beat, shock-proof and waterproof.

The standard PT100 blackboard temperature sensor monitors the temperature of the blackboard, which is convenient to control the room temperature of the test room. The self-made irradiance meter is convenient for monitoring the irradiance changes in the test room, and timely understanding the irradiance situation, which is convenient for timely adjustment or replacement of lamps.

The water used for spraying is located in the tank at the bottom of the tank. The test water is preferably pure water or filtered water, which will not affect the test results due to impurities in the water. The water used in the test can be recycled repeatedly, saving the cost of use. The water tank is equipped with automatic water shortage protection, which is more convenient for the operator to replenish the water source.

The control system adopts touch screen color panel control, pure English operation interface, human-machine friendly, very convenient. The device has a USB, and the test data can be exported at any time

UV aging chamber temperature system

Through the temperature and humidity sensor, the temperature and humidity in the test room are detected and adjusted in time.

UV aging chamber lighting system

The amount of radiation is displayed and measured with a dedicated UV radiation meter with high precision

UV-A UV lamps, 8 pieces in two rows, 40W/piece, imported lamps.

After the first illumination of 400-450H, each row of lamps needs to be replaced with a fluorescent lamp, and the other lamps shall compensate for the loss caused by the aging of the lamps according to the lamp cycle and replacement method. This operating mode ensures that the service life of each lamp is 1600-1800H.

The temperature of the blackboard is controlled by a color touch screen program controller or a digital key temperature controller. The output power is calculated by a microcomputer, and the PID is self-tuning. The standard PT100 blackboard temperature sensor is used for monitoring.

UV accelerated aging chamber spray system

The humidification water supply adopts automatic control, and the residual water can be recovered, saving water and reducing consumption

The water replenishment tank is placed in the lower right part of the control box, and has automatic water shortage protection, which is more convenient for the operator to replenish the water source.

UV aging chamber condensation system

The heating method is liner water tank heating, fast heating, uniform temperature distribution

The temperature of the water tank is controlled by a color touch screen program Korean temperature controller. The water tank is located in the lower part of the box and has a built-in electric water heater.

In the testing process, one of the test sections is the dark condensation process, which requires saturated water vapor with a higher temperature in the box. When the water vapor encounters the relatively cold surface of the sample, dew will condense on the surface of the sample.

UV aging chamber standard

ISO 11507 "Artificial Weathering Exposure of Paints and Varnishes Coatings Exposure to Ultraviolet Light and Water"

ISO EN 4892-3 "Plastics. Methods of exposure to laboratory light sources. Part 3: UV lamps"

GB/T 14522 "Artificial climate accelerated test method for plastics, coatings and rubber materials for machinery industry products"

GB/T 23983 "Determination of yellowing resistance of wood coatings"

GB/T 23987 "Artificial Weathering Exposure of Paints and Varnishes Coatings Exposure to Ultraviolet Light and Water"

GB/T 16422.3 "Exposure method of plastic laboratory light source test: Part 3: Ultraviolet lamp"

ASTM D4587 Conducting UV Condensation Exposure Tests of Paints and Related Coatings

ASTM D5894 Painted Metals

ASTM G154 "Standard for UV/Water Exposure of Non-Metallic Materials"

ASTM D4329 "Standard for UV/Water Exposure of Plastics",

ASTM D "Standard for Aging of Asphalt Roofing Materials"