8 common aging detection methods

The aging test mainly refers to the thermal oxygen aging test of rubber, plastic products, electrical insulation materials and other materials; Or air exchange aging test for electronic spare parts and plasticized products. The aging test is divided into temperature aging, sunlight irradiation aging, loading aging, etc. The following eight commonly used aging detection methods are introduced for you. eight

1. Ozone aging detection

 

Ozone aging is to expose the sample to a closed and dark air containing constant ozone concentration and a constant temperature test chamber, and to test the sample according to a predetermined time, from the degree of cracking or other performance changes on the surface of the sample, and Evaluate the ozone aging resistance of the sample.

 

2. Salt spray aging test

 

Salt spray test is an environmental test that mainly uses artificially simulated salt spray environmental conditions created by salt spray test equipment to assess the corrosion resistance of products or metal materials.

 

3. Damp heat aging test

 

Damp heat aging test is suitable for products that may be used in a warm and humid environment. Humidity test, constant damp heat, and alternating damp heat are one type of reliability test.

 

Common humidity effects: loss of physical strength, change of chemical properties, degradation of insulating material performance, electrical short circuit, oxidation corrosion of metal materials, loss of plasticity, accelerated chemical reaction, degradation of electronic components, etc.

 

4. Carbon arc lamp aging detection

 

There are two types of carbon arc lamps, one is closed carbon arc lamps, and the other is sunlight carbon arc lamps. Both carbon arc lamps were used in early equipment, the former was originally used for lightfastness testing of textiles, and the latter was originally used for lightfastness testing of coatings. The illuminant of an enclosed carbon arc lamp is a set of carbon rods through which an electric current emits an arc. However, the spectral energy distribution of arc light emitted by carbon rods is quite different from that of natural light. There is neither short-wave ultraviolet radiation of natural light nor high-intensity energy of sunlight between 400-800nm. The matching of the spectral energy distribution of solar carbon arc lamps and sunlight has improved, but the spectral energy distribution between the two is still very different between 50-350nm.

5. Xenon lamp ageing test

 

This is a test on products and their manufacturing materials that are exposed to sunlight. Solar radiation can cause photochemical and thermal effects. In most cases, this test can replace the high temperature test. The sunlight test examines the effects of solar radiation on the use or open storage of products or related materials.

 

6. UV ageing test

 

Using fluorescent UV lamps as the light source (there are different types of UVA, UVB lamp source), through the simulation of natural sunlight in the UV radiation and condensation, to accelerate the material weathering test, in order to obtain the results of material weathering.

 

7. Hot and cold shock test (temperature shock, rapid temperature change)

 

Hot and cold shock testing involves exposing test specimens alternately to low and high temperature air (or a suitable inert gas), subjecting them to rapid temperature changes. The purpose of the test is to examine the effect of sudden changes in ambient temperature on product performance.

 

8. Gas corrosion testing

 

Gas corrosion testing is applicable to: communication products and peripheral components, automotive electronics, electronic components, connections, metal materials, electronic and electrical products such as the protective layer and electronic and electrical products

 

The ageing test is part of the reliability test, and is a process that simulates the ageing of the product by various factors involved in the real life conditions of use.