Ultraviolet aging test chamber is a kind of equipment used to simulate the aging of materials under the condition of ultraviolet radiation. Its working principle is based on simulating UV light exposure in natural environments, generating UV light through specific UV radiation sources, and exposing test samples for a long time to simulate the aging process of materials under outdoor exposure conditions.

Typical application cases
Plastics and rubber industry: It is used to evaluate the weather resistance and aging resistance of plastic and rubber materials in outdoor environments, such as color change, surface cracking, physical property change, etc. This is very important for the development and quality control of plastic and rubber products.

Paints and coatings industry: It is used to evaluate the properties of paints and coatings such as weather resistance, color difference change, adhesion, gloss retention, etc., to ensure their durability and stability in outdoor environments.

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Automotive industry: used to test the weather resistance of automotive external parts, such as paint, plastic parts, rubber seals, etc., to ensure their performance stability and appearance quality after long-term exposure to UV light.

Textile and leather industry: It is used to evaluate the color stability, UV resistance and durability of textile and leather products to ensure their quality and service life in outdoor environments.

Medical device industry: It is used to test the weather resistance and aging resistance of medical device materials, such as plastic pipes and seals, to ensure their reliability and safety in the medical environment.

The use of UV aging test chamber is of great significance for material research and development, product quality control and process improvement. By simulating the UV radiation conditions in the real environment, the weather resistance of materials can be predicted and evaluated in advance, so as to guide product design and material selection, and improve product reliability and service life.

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Precautions for use
Precautions: When using UV aging test chamber, the following matters should be paid attention to:

According to the characteristics and requirements of the material to be tested, select the appropriate UV light source and test conditions.

Calibrate and maintain the UV aging test chamber regularly to ensure its proper operation and accuracy.

Strictly follow the safety operation rules to ensure the safety of personnel during the test.

Control the consistency of test conditions, including UV light intensity, temperature, humidity and other parameters. Ensure the repeatability and accuracy of the test.

According to the characteristics of different materials, the appropriate aging time and period are determined to obtain accurate aging effect evaluation results.

When the samples are placed and arranged, ensure that the distance between the samples and the arrangement are uniform to obtain representative aging effects.

Periodically check and record changes of samples, including color changes, physical properties changes, etc., during the test for subsequent analysis and evaluation.

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Relevant standards
In the UV aging test, the following industry standards can be referred to as reference:

ISO 4892-2:2013 “Plastics – Methods of exposure to laboratory light sources – Part 2: Xenon-arc lamps”

ASTM G155 – Standard Practice for Operating Xenon Arc Light Apparatus for Exposure of Non-Metallic Materials

ASTM D4329 – Standard Practice for Fluorescent Ultraviolet (UV) Lamp Apparatus Exposure of Plastics

ASTM D4587 – Standard Practice for Fluorescent UV-Condensation Exposures of Paint and Related Coatings

(GB/T 14522-93 “Plastics and rubber – Methods of exposure to natural weathering”)

Do you understand the working principle and application of UV aging test chamber?

Features and Functions
In the UV aging test, it is necessary to use a special UV aging test chamber. Uv aging test chamber usually has the following features and functions:

Ultraviolet light source: UV lamp is used as a light source, which can emit ultraviolet light of specific wavelength. The common UV light source is xenon lamp and fluorescent UV lamp, according to the need to choose the appropriate light source.

Control system: With temperature control, humidity control and light intensity control functions, can accurately set the test conditions, and real-time monitoring and recording of environmental parameters.

Sample holder: Used to hold the sample to be tested, usually with adjustable height and Angle of the holder to ensure adequate exposure of the sample to UV light.

Data recording and analysis: With data recording and analysis functions, it can record the changes of environmental parameters and the performance changes of samples during the test, and generate reports for analysis and evaluation.

Safety performance: With safety protection devices, such as over-temperature protection, leakage protection, etc., to ensure the safety of the test process.