It is very important to choose the right material for the anti-corrosion measures of centrifugal fans, because different materials and separation requirements require different models. After the model and main parameters are determined, the strength part materials are determined from the basic level according to the corrosion resistance of different materials in different environments, their physical and chemical properties, cost performance and other factors. From the material itself, the target material is safe.
The mechanism design of environment-friendly centrifugal fan and perfect design can prolong the service life of the equipment and ensure the safety of the equipment. For the structural design, the design defects that are easy to accelerate corrosion are the tendency of stress concentration and crevice environment. Sometimes, although the corrosion rate is small when the metal is immersed in the solution; However, the formation of crevices will cause serious crevice corrosion due to changes in the chemical and electrochemical state of the internal solution.
One of the basic ideas to control corrosion is to isolate the corrosive environment as a surface protection measure for environmental protection centrifugal fans. In the design of environment-friendly centrifugal fans, surface treatment methods, such as flange, zinc plating, chromium plating, chemical plating, etc., are often used. These methods are effective in many environments. However, for rotating parts, an important phenomenon must be noted: the matrix material and the coating are two materials, and their linear expansion coefficients are different, which will produce different deformation when the rotating parts are elastic deformed, resulting in a large number of microcracks; If the above phenomenon exists, it will accelerate the formation of corrosion. Therefore, the surface protection method of rotating parts should be carefully adopted.
We don't know how to do a good job in anti-corrosion of environmental protection fans. We can operate according to these instructions. We should do a good job in daily maintenance of environmental protection centrifugal fans. At present, environmental protection centrifugal fans are used in factories, environmental protection industry, metallurgy, chemical industry, mining, textile, food and other industries.