INVESTIGATION OF CHARACTERISTICS OF THE SURFACE LAYER OF THE ELECTRICAL PUMP PARTS

In most cases, electric motors and pumps break down due to depletion of loaded parts (shafts, bushings, etc.) after their contact with the rubber-metal bearings and liquid, flowing through the elements of electrical pump. Most of these items are made of expensive-standing steel ? 40X13 and 12X18H10T. The article discovers the questions of the process of hardening of steel parts with 45-combined hardening, consisting in coating of chromium with ultra-diamonds, subsequent turning and burnishing of the surface with diamonds. The paper also contains the results of comparative study of the mechanical surface treatment of 45-steel parts, 12X18H10T and 40X13.