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1·Abrasion problem of centrifugal induced draught fan impeller is put forward.

提出了离心引风机叶轮磨损问题。

2·Its welding feature and applicability to fan impeller welding is pointed out.

指出了其焊接特点及对风机叶轮焊接的适用性。

3·Vibrating characteristic is analyzed on the axial fan impeller with the software ANSYS.

用ANSYS软件对轴流通风机叶轮的振动特性进行了分析。

4·Vibrational characteristic of axial fan impeller is analyzed by composition unit method.

采用组合单元法分析了轴流通风机叶轮的振动特性。

5·Sectionally pressing and assembled weld technology of front disc on fan impeller is introduced.

介绍了对风机叶轮前盘采用分段压型和组焊的工艺方案以及制造工艺的过程。

6·The signification of fan impeller repair is set forth in respects of aerodynamic, mechanical property, safety and economy.

对通风机叶轮修割的意义分别在气动性能、机械性能、安全性和经济性方面来阐述。

7·It is an advanced method that use ANSYS to analyze the vibrating characteristic of axial fan impeller. It can be also used in fan CAD.

说明了用ANSYS软件在对轴流通风机叶轮的振动特性分析上是一种先进方法，也可以用于通风机的计算机辅助设计。

8·All blades on the fan impeller of the fan impeller device are made into a sectional structure in the axial direction of the fan impeller.

其风扇叶轮上的各个叶片、沿风扇轮的轴向方向制成分段的结构。

9·The utility model relates to a field of centrifugal blower production, in particular to a fan impeller inclined temperature control welding table device.

本实用新型涉及到离心鼓风机制造领域，是一种风机叶轮倾斜温控焊接台装置。

10·The double-suction centrifugal fan impeller vane meets the production requirements of a production process line and ensures the normal operation of the fan.

本实用新型满足 生产工艺线的生产要求，同时保证了风机的正常运行。