Abstract
An impeller is a pivoting segment of divergent pump, generally made of cast iron materials used in domestic applications that have low hardness value, impact strength and low wear resistance, which reduces the life of impellers. Due to poor wear resistance, the impeller has to undergo maintenance for every short interval of time. The other problem faced is the weight of impellers made of cast iron, which reduces the performances of the impeller. So as to improve life, impact strength, wear resistance, and performance, an alternate material is suggested using hardfaced aluminium alloy (6012). The alternate material for the existing impeller is selected, and the investigation on hardfacing is carried out for different grades of coating to increase the hardness, wear resistance, and life of the impeller. Then, the performance of the new material hardfaced aluminium impeller performance analysis can be carried out via erosion test and comparison between two materials. Von Mises pressure dispersion can be determined. In a planned way, the blended stream pump impeller having inclined inlet blade situating (case-I) in the meridional annulus is getting lesser twisted than the trapezoidal cutting edge situating (case-II) which itself connotes that the impeller with delta slanted sharp edges situating is a superior decision than the other one.
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