Failure Repair Of Centrifugal Fan

Centrifugal fan drive parts wear is a common equipment problem, including exhaust fan bearing position, bearing room wear, blower shaft bearing position wear and so on. In view of the above failures of centrifugal fans, traditional maintenance methods include surfacing, thermal spraying, and brush crossing. However, there are certain disadvantages: the thermal stress caused by the high temperature of repair welding cannot be completely eliminated, which may cause material damage and cause parts to bend or break; The brush plating is limited by the thickness of the coating, and it is easy to peel off. The above two methods use metal to repair the metal, which cannot change the "hard to hard" cooperation relationship. Under the combined effect of various forces, it will still cause the Worn again. Contemporary western countries use polymer composite repair methods for the above problems, but the most widely used is the American Fu Shilan technology system, which has comprehensive properties such as super adhesion, excellent compressive strength, and can be disassembled and machine-free. machining. It has neither the effect of repairing thermal stress nor the limitation of repair thickness. At the same time, the metal material does not have the concession, which can absorb the shock of the equipment and avoid the possibility of re-wear. It is gradually replacing traditional methods.