Download Abrasive Erosion and Corrosion of Hydraulic Machinery by C. G. Duan, V. Ia Karelin PDF

By C. G. Duan, V. Ia Karelin

A scientific exposition of abrasive erosion and corrosion of hydraulic equipment in either concept and engineering perform. all of the very important topics are mentioned together with basics, calculation, research and numerical simulation of liquid-solid movement layout, erosion-resistant fabrics, interplay among cavitation and abrasive erosion, and corrosion of hydraulic equipment.

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Extra resources for Abrasive Erosion and Corrosion of Hydraulic Machinery (Series on Hydraulic Machinery)

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5 and 5 MW, respectively. The hydro-turbine runners are fabricated from stainless steel, the other elements in the flow-passage portion of the device are made of carbon steel. 2 MW each. The runner and other elements of the turbine are made of cast carbon steel. The periodic full-scale surveys carried out during the scheduled maintenance overhauls of the components of the hydraulic sets have revealed that these elements have acquired, in the course of about 10 months of operation, abrasion of the kind described below.

13) the main factor governing hydraulic abrasion intensity, at the given parameters of hydroabrasive mixture, is the local velocity. However, the views, which many researchers have on the velocity index of power n, are inconsistent with each other. 2. All the stands of the indicated types are unfit, in our view, for experiments to be carried out with the aim of defining the effect of a hydro-mixture velocity on the erosion of pumps, since to determine this velocity actual value is an extremely difficult task.

These materials were tested on a laboratory stand. 5 mm. It should be noted here that the material erosion intensity dependence of the angle of attack are qualitatively similar both in hydro-abrasive and gasabrasive processes. 7) erosions faster than it does at smaller angle, and with a greater rate than the non-hardened steel and rubber do. This result from brittleness of hardened steel; the surface layer in such steel cannot at certain areas withstand, at set conditions of external influence pattern, the impacts produced by a certain number of abrasive particles.

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