With the continuous advancement of science and technology, the possibilities that humans can travel are increasing. From the tropics to the glacial regions, from the plains to the plains, from the sea to the sky, etc., it makes the environment meet in the storage, transportation and use of products are different complex.
To ensure that the product can adapt to these complex and difficult environments, products from the development of the need to consider its future can meet environmental conditions. Various procedures were carried out in the selection of equipment, structural design, production and processing of products, so that it can adapt to the requirements of the environment. Environmental testing is a task to verify that a product can maintain its reliability in the operating environment.
The importance of environmental research
Environmental testing is actually exposing the product to the environment or the production environment to evaluate performance under the conditions of storage, transportation and use that they may encounter. The quality and acceptability of products can be seen under different environmental conditions using environmental testing. It can eliminate early failures, reveal complete product defects, and provide information for product improvement and maintenance. Provides supporting data and accurate information for failure analysis.
The impact of environmental testing on products
In general, environmental testing is a combined test that consists of one or two different types of samples. This combination test is the first with a series of single samples representing a single environmental effect. The impact of any one-component test that demonstrates a unique environmental impact on the product is often affected by the next environmental test.
If the relationships and barriers between environmental testing activities are not taken into account, the implementation of the testing activities will greatly affect the reliability and comparability of environmental testing results. Therefore, in order to be able to plan the environmental assessment process properly. We need to have a better understanding of the impact of individual environmental factors on the product.
Standardization of environmental testing
The low pressure test does not damage the product. The order of experience is usually the first. If other tests (high and low tests, mechanical tests and solar radiation tests) have a significant effect on the low pressure effect of the sample. These tests should be scheduled before the low pressure test.
Low temperature testing does not result in the sample being permanent. This is planned at the beginning of the trial. A low temperature test will have a significant effect on the results of a low pressure test.
A high temperature test is usually performed at the beginning of the test. The high temperature test will help a lot to improve the low pressure test of the seal, and the damage caused makes the device faster. At the same time, the high temperature test will reduce vibration and resistance quickly.
Thermal shock tests are performed to test high and low temperatures.
Moisture testing can damage the sample. To determine whether the waterproofing materials after heat and vibration tests meet the requirements. Temperature and humidity testing is usually scheduled after temperature and vibration testing. The wet heat test should not use the same sample as the salt spray and mold test. The test should be carried out in the order of destruction in terms of temperature and humidity, mold and salt spray.
Mechanical testing
A vibration test can be performed at any time during the test. However, if the effect of pressure stress due to vibration is to be investigated, a vibration test must first be performed.
An impact test was planned before the climate test. This design of the test system is good for checking. On the contrary, it can show the sensitive weather spots of the sample very well.
Conclusion
The choice of environmental tests and their methods is a complex and global problem. Failure to plan the test properly will lead to incorrect test results. Also, it will greatly affect the reliability and comparison of environmental test results.
