Method for restoring local corrosion damage to housing of submersible electric motor during routine repairs
RU2865070C1Active Publication Date: 2026-06-30FEDERALNOE GOSUDARSTVENNOE BYUDZHETNOE OBRAZOVATELNOE UCHREZHDENIE VYSSHEGO OBRAZOVANIYA UDMURTSKIJ GOSUDARSTVENNYJ UNIV
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Patent Information
- Authority / Receiving Office
- RU · RU
- Patent Type
- Patents
- Current Assignee / Owner
- FEDERALNOE GOSUDARSTVENNOE BYUDZHETNOE OBRAZOVATELNOE UCHREZHDENIE VYSSHEGO OBRAZOVANIYA UDMURTSKIJ GOSUDARSTVENNYJ UNIV
- Filing Date
- 2026-02-18
- Publication Date
- 2026-06-30
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Abstract
FIELD: electric motors.SUBSTANCE: invention relates to a method for restoring local corrosion damage on the outer surface of a submersible electric motor during routine maintenance. The method involves mechanically cleaning the corrosion-damaged area on the outer surface of the motor from corrosion products until the underlying metal is exposed, and then applying a metal coating to the cleaned area. The coating is applied using the electro-arc metallization method in layers, with an arc current of 200-250 A, a surface temperature of 80-120 °C, and a wire diameter of 1.5-2.4 mm. In this case, a jet of molten particles is directed at the specified area under a pressure of 0.4-0.6 MPa of compressed air.EFFECT: ensures the formation of a stable metal coating at the site of use, which fills the corrosion pit and restores the geometry and strength of the housing.1 cl, 3 dwg, 2 ex
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