In the fields of materials science and product quality testing, anti UV aging chambers are widely used as important testing equipment in industries such as aviation, automotive, home appliances, and scientific research. They are used to simulate the damage caused by sunlight, rain, and dew on materials to evaluate their weather resistance. This article will combine relevant reference materials to provide a detailed introduction to the usage of the anti UV aging box.

1、 Preparation work before the experiment

1Sample preparation

Produce standard samplesMake the materials that need to be tested into standard samples, which are usually 150mm x 70mm, with a thickness of 1-3mm. During the production process, it is necessary to ensure the dimensional accuracy and surface quality of the sample to ensure the accuracy of the test results.

Cleaning samplesAfter the sample production is completed, it needs to be cleaned thoroughly to remove impurities such as oil and dust on the surface, in order to avoid interference with the test results caused by these impurities.

2Equipment inspection

Check the water sourceSome models of anti UV aging boxes may require a water source to achieve spraying or condensation functions, so it is necessary to check whether the water source is sufficient, whether the water quality meets the requirements (generally recommended to use purified water, distilled water, or deionized water), and ensure that the water source connection is normal.

Check the power supplyCheck if the power connection of the device is secure, if the voltage is stable, and if it meets the required power specifications of the device (such as AC380V ± 10% 50 ± 0.5Hz three-phase five wire system).

Check each componentCarefully inspect the internal components of the equipment to ensure they are functioning properly, such as the UV lamp tube being intact, the filter screen being clogged, and the sample holder being securely installed. Ensure that the equipment is in good operating condition.

3Place the sample

Open the box doorOpen the cover plates or doors on both sides of the test chamber to prepare for placing the samples.

Fixed samplePlace the sample flat in the sample holder, ensuring that the distance between the surface of the sample and the surface of the lamp tube is uniform. If the sample is small, it can be fixed on a blind hole plate that blocks light first, and then the blind hole plate can be placed on the sample frame. Areas that are not fully filled should be filled with black metal plates to avoid direct light shining on non test areas, which may affect the test results.

Close the box doorAfter placing the sample, cover both sides of the lid or close the box door to ensure that the door is well sealed and prevent light leakage during the testing process.

2、 Parameter settings

1Set the test time

According to the test requirements, pre-set the total test time, lighting time, condensation time, spraying time, etc. The testing requirements for different materials may vary, and it is necessary to set these time parameters reasonably to ensure that the testing can accurately simulate the ultraviolet radiation and environmental effects that the materials are subjected to during actual use.

2Set temperature and humidity

Set the test temperature and humidity according to the testing requirements. The anti UV aging chamber can usually control the temperature and humidity of the testing environment to simulate different climatic conditions. For example, some materials are more prone to aging in high temperature and high humidity environments, so corresponding temperature and humidity parameters need to be set for testing.

3Other parameter settings

According to the equipment manual, set other necessary parameters such as the irradiation intensity of the ultraviolet lamp, spray water pressure, etc. Different devices may have different functions and control parameters, and users need to carefully read the device manual and set them according to the requirements.

3、 Start the experiment

1Check the power wiring

Before starting the test, double check the machine's power wiring to ensure safe operation of the equipment.

2Turn on the power switch

After confirming that everything is ready, turn on the power switch and start the test chamber. The equipment will start running according to the set parameters, the UV lamp will light up, and the sample will be irradiated with UV radiation. At the same time, condensation or spraying operations will be carried out according to the set program.

4、 Observation record

1Regular observation

During the experiment, regularly observe the color and performance changes of the sample. For example, observe whether the sample shows fading, discoloration, loss of light, powdering, cracking, and other phenomena, and record the time and degree of these phenomena.

2record data

Use professional recording tools to record experimental data in detail, including test time, temperature and humidity changes, sample status, and other information. These data will provide important basis for subsequent analysis and evaluation.

5、 End the experiment

1Power off

After reaching the set test time, turn off the power supply of the test chamber. The equipment will stop running, the UV lamp will turn off, and condensation or spraying operations will cease.

2Take out the sample

Before opening the door after the experiment is completed, the test chamber should continue to cool for a period of time until the temperature in the testing room is below Open the door for sampling at 40 degrees Celsius. This is to avoid harm to the human body caused by high temperatures and to prevent damage to the sample due to sudden temperature changes. After taking out the sample, further performance testing and analysis are conducted to evaluate the weather resistance of the material.

6、 Precautions

1safe operation

Operators should minimize their exposure to ultraviolet radiation and wear protective goggles and shields to protect their eyes and skin. Ultraviolet radiation can cause certain harm to the human body, and prolonged exposure to ultraviolet radiation may lead to skin burns, eye damage, and other issues.

2Equipment maintenance

Regularly clean the interior of the test chamber and replace the filter screen to maintain the good operating condition of the equipment. The blockage of the filter can affect the ventilation and heat dissipation of the equipment, reduce the service life of the ultraviolet lamp, and also affect the accuracy of the test results. Regularly check whether the various functions of the equipment are normal and record the inspection results, promptly discover and solve problems with the equipment.

3Environmental Requirements

Choose the perennial temperature as Install in a location with a temperature range of 15 ℃~28 ℃ and a relative humidity not exceeding 85%. The equipment should be installed on a level ground and kept away from direct sunlight, combustibles, explosives, and high-temperature heat sources. A good installation environment can ensure the normal operation and service life of equipment, while also improving the reliability of test results.

4Other precautions

Non dedicated operators are not allowed to operate the equipment at will. Before installing or removing fluorescent lamps, please turn off the air switch at the front of the panel and cut off the external power supply to prevent electric shock accidents. The horizontal position of the drainage device should be lower than the drainage outlet inside the test chamber to ensure normal drainage and avoid damage to the equipment caused by accumulated water.

The use of the anti UV aging chamber requires strict adherence to the operating procedures, from the preparation work before the test to the observation and recording during the test process, and then to the handling after the test, each link is crucial. Only by using and maintaining equipment correctly can accurate and reliable test results be obtained, providing strong support for material research and development.