UV aging chamber Large UV aging chamber

Large UV Aging Chamber uses the light emitted by the UV lamp to simulate sunlight, uses condensed moisture to simulate dew, and uses water spray to simulate rain. The material to be tested is subjected to an alternating program of light and moisture at a specific temperature. In a matter of days or weeks, the hazards and damage experienced outdoors over months to years can be reproduced, including discoloration, fading, loss of gloss, chalking, cracking, blistering, haze, embrittlement, loss of strength and oxidation of the sample. Widely used in non-metallic materials, plastic shells, LED lighting, packaging materials, ink chemicals, LED optoelectronics, LCD screens, hardware products, metal coatings, displays, photovoltaic panels, rubber, organic materials (such as: rubber, paint, paint, plastic and its products) etc. can be found at der selection of new materials and the improvement of existing materials.
 

1. Technical parameters:

1. Temperature and humidity range Normal temperature +10~70℃, Panel measurement range: 45~80℃, Humidity range: ≥ 90%RH

2. Temperature variation: ±3℃, resolution: 0.1℃

3. The center distance of the lamp is 70mm (the center of the test product and lamp tube distance : Plate Base Frame Test Plate (adjustable up and down)

4. Lamp Brand Model American ATLAS*UVA-340 (315~400nm), UVB-313 (280~315nm) (optional), The default configuration is 8 Piece with 340 lamp tubes, if you need 313 lamp tubes, please explain before ordering.

5. The irradiance is within 1.0W/m2 (can be output according to the adjusted light intensity)

6. Temperature control mode PID self-tuning temperature control mode

7. Operating mode: program mode, fixed wert mode

8. Setting mode: Chinese menu, touch screen input

9. User interface language

Type: Chinese/English

10. Program editing: 120 program groups can be edited, each program group can be edited with 100 segments, and cycle mode can be set;

11. Panel temperature monitor: standard Pt-100 panel temperature sensor controls the surface temperature of the sample during the test.

12. Communication interface: (RS232/RS485 , communication distance 1.2km [fiber optic up to 30km ])

13. Attachment function: error alarm and cause, processing reminder function, power failure protection function, timing function (auto start and auto stop), self-diagnosis function.

2. Features:

1. The heating method is inner tank tank heating, and the temperature rises rapidly and the temperature distribution is uniform.

2. The water level of the inner tank is automatically replenished to prevent the heating pipe from being damaged by empty burning.

3. The sprayer simulates the drastic temperature change and rain erosion when it rains, and there are multiple nozzles to spray evenly.

4. The drainage system uses vortex and U-shaped sedimentation devices for drainage, which is convenient for users to clean.

5. The panel temperature adopts a bimetal panel thermometer, and the panel temperature instrument controls the heating, and the temperature is more stable.

3. Exposure method:

When using a large-area UV aging box for aging test, the surface temperature of the sample is an important exposure parameter. In general, high temperature will accelerate the polymer degradation process and the allowable test Die TeTemperature should be determined according to the test material and aging performance evaluation index. UV fluorescent lamps emit less infrared rays than xenon lamps and carbon arc lamps, and heating of the sample surface is essentially by hot air convection. Therefore, the temperature difference between black panel thermometer, black standard thermometer, sample surface and exposure chamber air is very small. The following two exposure methods are recommended:

Exposure Method 1: After the sample has been exposed to light for a period of time, followed by a period of no exposure (when the temperature changes and condensation forms on the sample) Cycle Test . The test period shall be in accordance with relevant standards. Unless specific cycle conditions are specified, the following cycle is recommended: 4-hour or 8-hour irradiation at a black standard temperature of 60 °C ± 3 °C, followed by no irradiation at a black standardat a standard temperature of 50°C ± 3°C, expose to condensation for 4 hours.

Exposure Method 2: The sample is continuously exposed to radiation and subjected to a cycle test with periodic water spray. Relevant standards for the test period. If there is no regulation, the following test conditions are recommended: irradiate and expose for 5 hours under the conditions of black standard temperature 50°C ± 3°C and relative humidity (10 ± 5)﹪, and then further irradiate at black standard temperature 20° C±3°C, expose to light for 1 hour and spray with water.