Fracture analysis of the fan shaft was made by observing macroscopic and microscopic appearances of the crack,and examining micro hardness and chemical composition of the material.

This paper analyzes the courses of failure for the fan shaft and bearing of a power plant.

Discussing the causes of gear corrosive piting in axial-flow fan;

Change of the moisture of grain and power consumption ventilated by axial-flow fan

One is that how to demount the wheel and the output shaft that were too difficult to demount in the L60 vertical axial-flow fans,the other problem is to test static balance about the wheel.

The discussion on oil-flow visualization of separated flow of axial flow fan in low flow rate region;

Oil flow visualization experiment research on axial flow fan;

The application of CFD in prediction of noise generated by axial flow fan;

Analysis is done to the work principle,property of axial fans in mills and the relationship between the common regulation methods and the power consumption.

Analyzed duct construction for air-cooled electrical power plant,and discussed the selective counting method for axial fans of air-cooled electrical power plant.

With the development of national economic, the axial fans are more widely used.

Application of GAF axial fan in mines;

Flow analysis and the improvement of axial fan support strut;

The investigation of tip leakage flow of an axial fan by PIV;

We havefound good process of repairing techniques use d in repairing the axes of blower and s ome typical aspects needed for special cares.