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2 810 278

(13)

(51)

IPC

C23C22/33(2006-01-01)

C23C22/74(2006-01-01)

C21D8/12(2006-01-01)

(21) (22)

Application

2022128321, 2022-10-31

(24)

Start date

2022-10-31

(22)

Actual filing date

2022-10-31

(45)

Published

2023-12-25

(72)

Inventor

Karenina Larisa SolomonovnaPankratov Mikhail AleksandrovichOnishchuk Vladislav LeonidovichValiev Ashraf Railovich

(73)

Holder

Publichnoe Aktsionernoe Obshchestvo Metallurgicheskij Kombinat"

COMPOSITION OF ELECTRICAL INSULATING COATING FOR ELECTRICAL ANISOTROPIC STEEL, PROVIDING HIGH COMMERCIAL CHARACTERISTICS Russian patent published in 2023 - IPC C23C22/33 C23C22/74 C21D8/12

Abstract RU 2810278 C1

FIELD: ferrous metallurgy.

SUBSTANCE: invention relates to the production of electrical anisotropic steel used for the manufacture of power and distribution magnetic cores of transformers. A composition is proposed for creating an electrical insulating coating on electrical anisotropic steel, containing Al and Mg phosphates, nanodispersed silica and Cr compounds (CrVI+CrIII). As nanodisperse silica, the composition contains monodisperse silica sol, in which 100% of SiO₂ particles have a size ranging from more than 15 to 100 nm.

EFFECT: invention makes it possible to obtain an electrical insulating coating on electrical anisotropic steel, which has high rates of adhesion, resistance coefficient, corrosion and moisture resistance, and presentation.

2 cl, 12 dwg, 1 tbl, 1 ex

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RU 2 810 278 C1

Authors

Karenina Larisa Solomonovna

Pankratov Mikhail Aleksandrovich

Onishchuk Vladislav Leonidovich

Valiev Ashraf Railovich

Dates

2023-12-25—Published

2022-10-31—Filed