How to prevent corrosion of centrifuge

Date of issue:2020-02-19 Views:109

One of the biggest headaches of centrifuges used in industry is that centrifuges have been used in chemical raw materials for a long time. The corrosion problems encountered by centrifuges are now recommended to everyone in 4 measures to prevent or slow down the corrosion of centrifuges.

First, it is important to choose the right centrifuge because different materials and separation requirements require different models. After the model and main parameters are determined, according to the corrosion resistance of different materials in different environments, the physical and chemical characteristics, cost performance and other factors are combined to determine the strength parts material from the basics. From the perspective of the material itself, the target material it targets is safe.

Second, the mechanism design of the centrifuge, an excellent design can extend the service life of the equipment and ensure the safety of the equipment. For structural design, the design defects that are most likely to accelerate corrosion are the stress concentration tendency and the gap environment, sometimes despite the metal immersion solution , The corrosion rate is small; but the formation of crevices, due to changes in the chemical and electrochemical state of the internal solution, will cause severe crevice corrosion.

Third, the surface protection measures of the centrifuge

A basic idea for controlling corrosion is to isolate the corrosive environment. In the design of centrifuges, surface treatment methods are often used, such as flanges, galvanization, chromium plating, chemical plating, etc. These methods are effective in many environments, but for rotating parts, an important phenomenon must be noted: the substrate The material and the coating are two kinds of materials, and their linear expansion coefficients are different, which will produce different amounts of deformation when the rotating member is elastically deformed, resulting in a large number of micro-cracks. If the aforementioned phenomenon exists, it will accelerate the formation of corrosion. Therefore, the surface protection method for rotating parts should be used with caution.

Fourth, the use of corrosion inhibitor centrifuge itself involves multiple disciplines. To use the centrifuge well, in addition to the above measures, you should also pay attention to study its application environment. The application of corrosion inhibitors is also widely used in practical applications. For some harsh environments, the use of appropriate corrosion inhibitors can bring parts to a suitable level. As long as the process permits, the use of corrosion inhibitors should be an effective way for centrifuge applications. The above 4 points can give the centrifuge a good protection, more resistant to corrosion, and make the centrifuge more durable and safer.