4.5 Sticking wear resistant ceramic chips to blade surface by Xianrun Blower

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

Ceramic material have the features of high wear resistance, high corrosion resistance, low density, low coefficient of friction, and high hardness. 

When the angle of attack is small, compared with metal and rubber, the ceramic wear is the smallest. 

xianrun blower ceramic chips on blade surface

Sticking ceramic material to fan blade surface, 1.5 mm ceramic chips on easy to wear place on centrifugal fan impeller, is a very effective way to improve the wear resistance of the blade. 

What is more,the small ceramic chip thickness won't increase impeller quality much, so sticking wear resistant ceramic chips will not affect the impeller design strength and fan moment of inertia of startup.

It is worth noting that the expansion of the ceramic material and steel material difference is big, so the centrifugal fan working temperature should not be too high; must ensure adhesive combined strength, and prevent wear-resisting ceramics chips fall off during the working; ensure the blade surface is smooth without spray coating.

wear resisting ceramic chips by xianrun blower

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