What are the types of reliability tests? What are the specific contents?

Date：2022-03-04 15:15:00Views：1585

Reliability testing is to expose the product to natural or artificial environmental conditions and undergo its function, so as to evaluate the performance of the product under the environmental conditions of actual use, transportation and storage, and analyze and study the influence degree and action mechanism of environmental factors. By using various environment to test the reliability life of products, different reliability test methods can be selected for different products in order to achieve different purposes.

Classification method of reliability test

1. If divided by environmental conditions, it can be divided into simulation test and field test under various stress conditions;

2. Divided by test items, it can be divided into environmental test, life test, accelerated test and various special tests;

3. If it is divided according to the test purpose, it can be divided into screening test, identification test and acceptance test;

4. If divided according to the nature of the test, it can also be divided into destructive test and non-destructive test.

5. However, the usual classification is to classify it into five categories:

A. Environmental test

B. Life test

C. Screening test

D. Field service test

E. Qualification test

Environmental reliability generally includes climate environmental reliability and mechanical environmental reliability. The influence of climate and environment reliability includes the influence of temperature, humidity, light, rain, salt fog, air pressure and so on. The climate and environment reliability test items mainly include: high temperature test, low temperature test, rapid temperature change test, cold and heat shock test, constant damp heat test, alternating damp heat test, temperature and humidity combined cycle test, light aging test, waterproof test, dustproof test, salt spray test, low pressure test, etc.

The reliability test items of mechanical environment mainly include: vibration test, mechanical impact test, collision test and drop test. In addition, it includes comprehensive environmental reliability test: comprehensive environmental test, such as the test of the combination of temperature + humidity + vibration.

Climatic and environmental reliability test items and main corresponding standards

High temperature test GB / T 2423.2 IEC 60068-2-2 eia-364-17

Low temperature test GB / T 2423.1 IEC 60068-2-1 eia-364-59

Rapid temperature change test GB / T 2423.22 iec60068-2-14

Thermal shock test GB / T 2423.22 iec60068-2-14 eia-364-32

Constant temperature and humidity test GB / T 2423.3 IEC 60068-2-78 mil-std-202

Temperature change test GB / T 2423.22 iec60068-2-14

Alternating damp heat GB / T 2423.4 IEC 60068-2-30

Temperature and humidity combined cycle test GB / T 2423.34 iec60068-2-38 mil-std-202

Salt spray test GB / T 2423.17 IEC 60068-2-11 GB / T 10125

IP level test IEC 60529 GB / T 4208 IEC 60598

UV Test ISO 4892.3 GB / T 16422.3 ASTM g 154

Xenon lamp test ISO 4892.2 GB / T 16422.2 ASTM g 155

Gas corrosion test eia-364-65 GB / T 2423.51 IEC 60068-2-60

Low pressure test GB / T 2423.21 IEC 60068-2-13

Ozone aging test GB / T 7762 ISO 1431-1

High pressure cooking test jesd22-a102-c jesd22-a110b jesd22-a118