渣浆泵ADI叶片的磨蚀特性分析

Analysis on the Wear Characteristic of ADI Blade for Slurry Pump

在实验室进行了渣浆泵 ADI叶片的模拟磨蚀试验 ,并在扫描电镜 ( SEM)下观察 ADI叶片破坏的宏观和微观形貌。结果表明 ADI叶片的磨蚀情况不同于灰口铸铁等一般脆性材料。叶片的磨蚀主要集中在头部、中部至尾部的吸力面和压力面等部位 ,其中以尾部吸力面的破坏最为严重。结合水力条件分析叶片的磨蚀特性可知 。

The wear experiment on ADI blade for slurry pump has been conducted in the laboratory. The damage appearances of ADI blade were observed and photographed using SEM. The results indicated that the wear characteristic is different from the ordinary ductile materials like grey cast iron. The wear on the blades was concentrated at the leading edge, the suction surface and pressure surface from the central section to the exit. The damage of the blade suction surface at the exit is the most severe. According to the analysis it is very clear that the wear at any section on the blade is affected by the surrounding flow condition.