动叶可调轴流式风机动叶片的火焰喷焊

The Oxygen─acetylene Flame Spray Welding Technology of Rotor Blade of the Adjustable Rotor Blade Axial Flow Fans

采用火焰喷焊技术对动叶可调轴流式风机动叶片进行表面强化，可以显著提高其耐磨性。介绍了合金粉末的选择、喷焊工艺的制定、叶片变形的防止以及喷焊层的组织和性能。

The oxygen--acetylene flame spray welding technology is applied to strengthen the surface of the rotor blade of the adjustable rotor blade axial flow fans for raising its wear resistance. The selection of the alloying powder,the determination of the spray welding technology,the prevention of the blade deformation and the microstructure and properties of the spray welding coating are introduced.