About environmental impact on products and failure modes
The environment is an unavoidable factor that must be considered for products. The environment degrades the performance of the product from various aspects, such as temperature, biological and pollutant destruction of the surface protective layer; wind sand, dust and biological erosion of the product surface; vibration and shock to cause stress corrosion; atmospheric salt and other pollutants cause or promote chemical corrosion; Temperature and humidity damage electronic components, cause insulation breakdown, contactors are non-conductive, resistance values ​​change, and electrical properties deteriorate. Many manuals and literature on the impact of the environment on the equipment are described in more detail.
Statistics accumulated over the years show that the number of product failures caused by the environment accounts for about 52% of the total number of failures. Among these 52% of failures, the percentage of failures caused by various environments is shown in the following figure. The failure is caused by temperature, vibration and humidity. Therefore, we should focus on the impact of these environments on products, failure mechanisms and protective measures. The destructive effect of the environment can reduce the service life of products, and some products have been damaged even during transportation and storage before being put into use. This destructive effect of the environment forces people to consider their impact when designing products, and puts forward special design and use requirements for equipment according to specific application environments, and increases the burden of procurement, maintenance and logistics support, and ultimately increases the cost and manpower requirements . It should be pointed out that the importance of various environments varies with the environment in which the product is located. Some environmental factors are important in one occasion, but may become unimportant in another occasion, or even impossible to encounter.
When products are stored, transported by different tools, and used in locations in different climatic regions, the relative importance of various environments for them. It can be seen that when considering the environmental impact, the future course of the product should be carefully analyzed.
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The environment is an unavoidable factor that must be considered for products. The environment degrades the performance of the product from various aspects, such as temperature, biological and pollutant destruction of the surface protective layer; wind sand, dust and biological erosion of the product surface; vibration and shock to cause stress corrosion; atmospheric salt and other pollutants cause or promote chemical corrosion; Temperature and humidity damage electronic components, cause insulation breakdown, contactors are non-conductive, resistance values ​​change, and electrical properties deteriorate. Many manuals and literature on the impact of the environment on the equipment are described in more detail.
Statistics accumulated over the years show that the number of product failures caused by the environment accounts for about 52% of the total number of failures. Among these 52% of failures, the percentage of failures caused by various environments is shown in the following figure. The failure is caused by temperature, vibration and humidity. Therefore, we should focus on the impact of these environments on products, failure mechanisms and protective measures. The destructive effect of the environment can reduce the service life of products, and some products have been damaged even during transportation and storage before being put into use. This destructive effect of the environment forces people to consider their impact when designing products, and puts forward special design and use requirements for equipment according to specific application environments, and increases the burden of procurement, maintenance and logistics support, and ultimately increases the cost and manpower requirements . It should be pointed out that the importance of various environments varies with the environment in which the product is located. Some environmental factors are important in one occasion, but may become unimportant in another occasion, or even impossible to encounter.
When products are stored, transported by different tools, and used in locations in different climatic regions, the relative importance of various environments for them. It can be seen that when considering the environmental impact, the future course of the product should be carefully analyzed.
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