Although the wind preventing wear many methods, but most of them are local and passive, an economical and feasible method to put forward anti abrasion. From the perspective of aerodynamic design, by changing the particle trajectory, fundamentally reduce wear is the development direction of wind abrasion - resistant measures.
Fan running for a long time, wear and tear is inevitable, then what kind of fan wear form, we come to understand below.
1。 abrasive wear: centrifugal fan uneven surface of contact, due to the relative movement of the file effect or the interface between the solid particles caused by grinding wear。 It has the greatest influence on the degree of impeller wear。 In the fan, solid particles with a certain speed and relative motion of the surface of the parts, will cause abrasive wear。
2. fatigue wear: as a result of surface fatigue stress (or temperature or impact) caused by surface cracks or scaling off.
1. adsorption wear: the results show that the centrifugal fan under the same other conditions, even improve the surface machining accuracy level and cleanliness, make each other better fit, but the wear is not reduced, but because the interface to molecular adsorption significantly, increased the wear of the interface, called for the adsorption of wear.
2. erosion wear: surface erosion caused by erosion of solid particles against metal surfaces.
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