Optimum Design of Anti - abrasion Metal Material for Axial Flow Pump

Optimum Design of Anti - abrasion Metal Material for Axial Flow Pump
Axial flow pump working in muddy water are severely damaged and severely damaged, requiring frequent downtime and even forced flooding during flooding, resulting in significant economic and energy losses. Therefore, to solve the problem of rapid wear and tear damage of axial pump is an important task of hydropower development. Abrasion is the result of combined action of cavitation and sediment erosion wear [1]. According to the site observation, abrasion damage is much more serious than individual cavitation or separate sediment wear. Because of the current mechanism of metal erosion damage has not been fully understood [2], coupled with the study of anti-abrasion of metal materials and the lack of comprehensive and systematic reports, anti-abrasive materials research is still more use of test and empirical methods for time-consuming trial exploration. In order to make anti-abrasive material development, design and application of detours, we must grasp the law and system of anti-abrasive material design. This paper discusses the research results in anti - abrasive materials, and reveals the inherent laws and systems of anti - abrasion material design. 1 Test materials and methods In the basic research of anti-abrasive material design, 10 kinds of industrial pure metals such as aluminum, magnesium, zinc, copper, iron, nickel, molybdenum, chromium, cobalt and tungsten were used as test materials. 30mm × 6mm test piece, in the electromagnetic resonance high-speed bubble generator with industrial water as a medium to accept cavitation test to thin film per unit time as a basis for measurement of cavitation loss.