UV Aging and Rain Test Chamber for Evaluating the Weather Resistance Performance of Materials

The UV Aging and Rain Test Chamber uses a fluorescent UV lamp that best simulates the UV spectrum in sunlight, and combines temperature control, humidity supply, and other devices to simulate factors such as high temperature, high humidity, condensation, and dark rain cycles caused by sunlight (UV) that can cause color change, brightness, intensity decrease, cracking, peeling, powdering, oxidation, and other damage to materials. At the same time, the synergistic effect between UV light and moisture weakens or fails the material's single light resistance or single moisture resistance, making it widely used for evaluating the material's weather resistance performance. The equipment provides the best sunlight UV simulation, has low maintenance costs, is easy to use, adopts automatic control operation, high automation of the test cycle, good light stability, and high reproducibility of test results.

Structure and Material

1. Test box space: width 500 x depth 500 x height 600mm

2. Dimensions: Width 1050 * Depth 970 * Height 1460mm

3. Unit material: Internal and external 304 stainless steel

4. Sample rack: Aluminum alloy frame type base frame visual panel

5. Controller: Color touch screen programmable controller

6. Radiation tube: UVA-340

7. Power supply residual current circuit breaker control circuit overload short circuit alarm, over temperature alarm, water shortage protection

Parameters

Product display

UV Aging and Rain Test Chamber for Evaluating the Weather Resistance Performance of Materials

Structure description

1. The box is made of CNC equipment, with advanced technology, smooth lines, and beautiful appearance

2. The material of the box is 1.2mm thick 304SUS mirror stainless steel

3. The air duct inside the box adopts a single circulation system, with an imported axial flow fan, which improves the air flow brightness and heating capacity, and significantly improves the temperature uniformity inside the test box

4. Lamp lifespan: over 1600h

5. Water source and consumption: approximately 8 liters/day of tap water or distilled water

6. The heating method is an inner tank sink type heating, with fast heating and uniform temperature distribution

7. The lid of the box is a double-sided flip cover, which can be easily and freely closed

8. Automatic replenishment of water level in the inner tank to prevent damage caused by empty burning of the heating tube

9. The sample holder is made of stainless steel or aluminum alloy

10. The bottom of the unit is fixed with high-quality PU movable wheels

11. The sprinkler system is equipped with automatic nozzles and adjustable water pressure inside

 

Safety protection device

1. Grounding protection

2. Power overload short-circuit circuit breaker

3. Control circuit overload and short-circuit fuse

4. Water shortage protection

5. Overtemperature protection

UV Aging and Rain Test Chamber for Evaluating the Weather Resistance Performance of Materials

Heating system

1. Adopting U-shaped titanium alloy high-speed heating electric heating tube

2. Temperature control and lighting are completely independent systems

3. The temperature control output power is calculated by a microcomputer to achieve high-precision and high-efficiency electricity efficiency

4. The heating system has anti overheating function:

5. The blackboard temperature is controlled by a color touch screen programmable controller, and the output power is calculated by a microcomputer with PID self-tuning. The monitoring uses a standard PT100 blackboard temperature sensor.

6. The temperature of the sink is controlled by a color touch screen program and a Korean temperature controller. The sink is located at the bottom of the box and is equipped with an electric water heater. During the testing process, there is a dark condensation process that requires the box to generate saturated water vapor at a relatively high temperature. When the water vapor encounters a relatively cold surface of the sample, it will condense on the surface of the sample.

 

spray system

1. Spray uniformity adjustment. Utilize the manual control function of the controller. Observe the spray status while the door is open

2. Spray status monitoring: The machine is equipped with a spray device. The sprinkler system simulates temperature fluctuations and rainwater erosion during rainfall There are several nozzles in total. Spray evenly When to spray. The duration of spraying is freely set by the customer        

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Q1: How long does it take to replace the UV lamp tube?

A: UV Aging and Rain Test Chamber is recommended to replace the lamp every 1500 hours or when the intensity attenuation is greater than 15% (with a standard lifespan of 1600 hours). Six lamps need to be replaced simultaneously to ensure spectral consistency.

Q2: How to calibrate spray uniformity?

A: Activate manual control mode, open the box door to observe the nozzle coverage range, rotate the pressure valve to adjust the water film to evenly adhere to the sample surface, and UV Aging and Rain Test Chamber is recommended to calibrate once every quarter.

Q3: How to maintain stability with humidity ≥ 95% RH?

A: Heating the shallow water tray at the bottom of the box generates saturated steam, which is dynamically compensated for humidity using PID algorithm. The fluctuation range is less than ± 3% RH, and the water level needs to be checked daily and deionized water needs to be replenished.

Q4: What is the maximum thickness of the testable sample?

A: The load-bearing capacity of the sample rack is ≤ 5kg, and the recommended thickness is ＜ 50mm. Overly thick samples may obstruct the spray path and affect the uniformity of condensation.

Q5: How to maintain UV Aging and Rain Test Chamber that has been out of use for a long time?

A: Drain the water tank and pipeline, wipe the lamp tube and stainless steel inner wall with a soft cloth, and run the circuit for 1 hour every month to dry it, which can extend the life of the core components by 30%.