4.4 Wear resistance lining board in fan impeller by Xianrun Blower

4. Improve the centrifugal fan blade wear resistance in cement plant

Overlaying wear resistant lining board and wear resisting layer in abrasion area can prevent the blade wearing. Generally, it is better to add 16 Mn low alloy liner on blade working surface, non-working surface, blade head. 

Because of working surface serious wear, overlaying wearing layer on lining board is a good measures to improve the wear resistance.

wear resisting centrifugal fan impeller by xianrun blower

Overlaying strip wear-resisting layer by wear-resisting welding wire on the blade working surface; surfacing 3 ~ 5 mm wear-resisting layer on the blade head. The non-working surface wear is not serious, so only lining board is OK. 

The shape of wear resisting lining board should be the same as impeller blade,so as to avoid welding stress during assembly.

Before welding wear-resisting layer, rust cleaning, preheating treatment are necessary to lining board, and the welding wire need drying, in order to prevent cracks, porosity and other defects in wear resisting layer.

wear resisting lining board in fan impeller by xianrun blower