What Are the Types of Wear in High-Pressure Centrifugal Fans?

What Are the Types of Wear in High-Pressure Centrifugal Fans?

Due to frequent use, high-pressure centrifugal fans are inevitably subject to wear. In fact, understanding the types of wear in high-pressure centrifugal fans helps analyze the issue and implement more effective countermeasures. Let’s take a closer look. According to an analysis of wear in high-pressure centrifugal fans, it can be categorized into four types. The first is adhesive wear. Experiments have shown that even if the machining precision and surface cleanliness of high-pressure centrifugal fans are improved to enhance the fit between components, the degree of wear does not decrease; however, depending on the tightness of the fit, wear issues can become more severe. This type of wear occurs because molecular adhesion becomes more pronounced due to the close contact between surfaces, hence the term "adhesive wear." The second type of wear is called refining wear. Simply put, this is known as refining wear. This occurs because, during operation, the high-pressure centrifugal fan is refined by solid particles on the metal surface. The third type of wear is referred to as abrasive wear. Although the surface of a high-pressure centrifugal fan is designed and treated to be as smooth as possible, there are still some uneven contact surfaces. Consequently, during operation, the filling effect caused by relative motion or the solid particles dispersed between the interfaces produce specific grinding effects and wear phenomena. One such scenario is fatigue wear. This typically occurs when high-pressure centrifugal fan units operate continuously for extended periods. Due to fatigue stress on the surface of the high-pressure centrifugal fan, cracks and peeling of the surface coating occur as a result of the stress.