5.2 Change the Hollow Blade to Solid Blade
This method is mainly aimed at airfoil blade. Due to the airfoil blade are hollow, so when the blades are worn through, dust particles will go into the blade, destroying the fan impeller balance, further more, reducing the service life.
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| xianrun blower wear resisting centrifugal fan |
In order to avoid this phenomenon, it is better to change the hollow blade to the equal thickness straight solid blade. But when the blade width is too large, changing to straight solid blades will decrease the strength and stiffness,even more causing deformation. In this case, it needs to add stiffener plate between front disc and rear disk in two adjacent blades.
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| wear resisting centrifugal fan impeller by xianrun blower |
In order to increase the blade wear resisting performance, welding wear-resisting welding wire in blade is a good measures.
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