Which is a good sunlight simulated radiation aging box

1、 Product Description

The destruction of materials by natural sunlight and moisture causes incalculable economic losses every year. The damage caused mainly includes fading, yellowing, discoloration, decreased strength, brittleness, oxidation, decreased brightness, cracking, blurring, and powdering. For products and materials exposed to direct or through glass windows, there is a risk of light damage. Materials that are exposed to fluorescent lamps, halogen lamps, or other luminescent lamps for a long time can also be affected by photodegradation.

Metal halide lamp aging test chamberIt is the ability to evaluate the thermal and optical effects generated by direct solar radiation on equipment used and stored outdoors without shelter. After the experiment, the appearance and working performance of the product are verified to evaluate whether the materials and components of the product can resist the requirements of outdoor solar radiation.

Metal halide lamp is a type of gas discharge lamp that utilizes metal halides to provide a spectral energy distribution that is very similar to direct and scattered light. This method is efficient and can produce a single illumination source effect by placing multiple radiation sources in a certain way. The spectral distribution of metal halide lamps is very similar to the sunlight received on the Earth's surface, but due to the large scale of metal halide lamps, they are mainly suitable for artificial light aging acceleration testing of large equipment such as automobiles, their components, and electrical and electronic products.

Select different testing methods and testing cycles according to different usage conditions. It is divided into program one cycle test and program two steady-state test, which can simulate 55~1200W/m2 test. The temperature range is from -40 ℃ to+100 ℃, and the humidity range is 10% -98% RH. It meets the solar radiation test under various temperature and humidity environmental conditions, providing strong support for outdoor testing of military and civilian products.

Compliant with standards GJB150.7A-2009, MIL-STD-810, EPA, DIN75220, etc., and can be specially designed according to other testing requirements of customers.

Light resistance test of indoor materials

Due to long-term exposure to fluorescent lamps, halogen lamps, or other luminescent lamps, products placed in retail outlets, warehouses, or other environments will also undergo significant photodegradation. It can simulate and reproduce the destructive light generated in such commercial lighting environments, and can accelerate the experimental process with higher intensity.

Simulate climate environment

In addition to conducting photodegradation tests, adding water spray options can also be used as a climate aging test chamber to simulate the destructive effects of outdoor moisture on materials. The use of water spray function greatly expands the climate and environmental conditions that the equipment can simulate.

Relative humidity control

The metal halide lamp aging test chamber provides relative humidity control function, which is important for many humidity sensitive materials, and many testing protocols also require humidity control.

2、 Introduction to Structural Design

Due to the special emphasis on practicality and ease of control in the design of this device, it has the characteristics of easy installation, simple operation, and basically no need for daily maintenance;

The equipment is mainly divided intoMain body, heating, humidification, cooling and dehumidification parts, display control part, air conditioning part, safety protection measures part, and other accessory parts;

The sample rack tray of this device is very convenient to use. The tray is tilted at an angle to the horizontal direction, which makes it easy for rainwater during spraying to not stay on the surface of the sample. It can be used to place flat specimens of different shapes and sizes or three-dimensional samples, such as parts, components, bottles, and test tubes. This tray can also be used for testing materials that flow in high-temperature environments, materials exposed to bacterial culture dishes, and materials that provide waterproofing on roofs;

Box production:

The shell is processed and formed using high-quality A3 steel plate CNC machine tools, and the surface of the shell is sprayed with plastic for a smoother and more beautiful appearance (now upgraded to rounded corners); The inner liner is made of high-quality SUS304 mirror stainless steel plate, which can effectively reflect light and save energy;

The insulation material is high-density glass fiber cotton with a thickness of 100mm;

mixing systemAdopting a long axis fan motor and a stainless steel multi blade impeller that is resistant to high and low temperatures, to achieve strong convection and vertical diffusion circulation;

Double layer high tensile sealing strips with high temperature resistance are used between the door and the box to ensure the sealing of the testing area; Using non reactive door handles makes operation easier;

And high-quality fixed PU movable wheels are installed at the bottom of the machine, which can easily move the machine to its position and finally fix the casters;

The equipment is equipped with a visual observation window, which is made of multi-layer insulated tempered glass, allowing for clear observation of the testing process.

Main functions

l Full spectrum metal halide lamp (280-3000 nm);

l Full spectrum irradiance control;

l Relative humidity control;

l Blackboard/or test chamber air temperature control system;

l Test methods that meet the requirements;

l Flat sample rack;

l 2500WMetal halide lamp

A light source that simulates the full spectrum of sunlight

The device uses a full spectrum metal halide lamp to simulate destructive light waves in sunlight, including UV, visible light, and infrared light. According to the desired effect, the light from a xenon lamp usually needs to be filtered to produce a suitable spectrum, such as the spectrum of direct sunlight, the spectrum of sunlight passing through glass windows, or the UV spectrum. Each filter produces a different distribution of light energy.

The service life of the lamp depends on the irradiance level used, with a typical lamp life of about 1000 hours. The replacement of the lamp tube is convenient and fast.

When you expose the product to direct sunlight outdoors, the product experiencesThe duration of light intensity exposure is only a few hours. Even so, the most severe exposure only occurs during the hottest weeks of summer. The device can accelerate your testing process because through program control, the device can expose your product to sunlight equivalent to summer noon 24 hours a day. The exposure experienced is significantly higher than outdoor exposure in terms of average light intensity and light hours/days. Therefore, it can accelerate the acquisition of experimental results.

Control of Light Intensity

Light irradiance refers to the ratio of light energy irradiated on a plane. The equipment must be able to control the irradiation intensity of light to achieve the purpose of accelerating the test and reproducing the test results. The variation of light irradiance can affect the rate of material quality deterioration, while the variation of light wavelength (such as the energy distribution of the spectrum) can also affect the rate and type of material degradation.

The irradiation of the equipment is equipped with a light sensing probe, also known as a solar eye, a high-precision light control system that can detect aging of the lamp tubeTimely compensate for the decrease in light energy caused by transformation or any other changes. The solar eye allows for the selection of appropriate light irradiance during the testing process, and even allows for the selection of light irradiance equivalent to that of summer noon sunlight. The solar eye can continuously monitor the irradiance in the irradiation room and accurately maintain the irradiance at the working set value by adjusting the power of the lamp tube. Due to long-term work, when the irradiance drops below the set value, a new lamp needs to be replaced to ensure normal irradiance.

The control of low irradiance is achieved by reducing the power consumption of the lamp tube and adjusting the matching characteristics of the light blocking plate, so that the internal irradiance can reach a relatively low level (55W/㎡) that meets at least 7 of the 8 conditions in GJB150.7A for cyclic testing (in GJB150.7A standard, only more than 4 test conditions are required).

IIIDetailed specifications

1. Model: RD/YGFS-760

2. Studio size:D800*W800*H1000（mm）

3. Dimensions: D1350 * W2100 * H2200 (mm)

4. Temperature range: RT~80 ℃

5. Humidity range: @ No light: 20%~98% adjustable

@Lighting: adjustable from 10% to 80%

6. Standard humidity controllable range diagram (dark blue area):

7. Temperature fluctuation: ± 0.5 ℃

8. Temperature uniformity: 2.0 ℃ (not measured when there is no light, not measured when there is light)

9. Heating rate: ≥ 3 ℃/min

10. Humidity deviation: ≤ ± 5% when ＜ 75%; When ≥ 75%: ≤± 3% (adjustable to within 2% range)

11. Halogen lamp source: 2500W imported metal halogen lamp

12. Filter: 1 piece

13. Number of light sources: 1 (color temperature 6500K)

14. Heating power: 5.0KW

15. Humidification power: 2.5KW

16. The light cycle is continuously adjustable, with a time range of 1 to 999h, m, s

17. Equipped with a fixed full spectrum radiometer (please specify in advance if any other requirements are needed)

18. Irradiance canTouch screen directlySetting, automatic adjustment

19. Lamp irradiation range: 280nm~3000nm

20. Range of irradiance adjustment: 55~1200W/㎡ (max1500W/㎡)