METHOD FOR CLEANING THE SURFACE OF COLD-ROLLED ANISOTROPIC ELECTRICAL STEEL BEFORE COATING Russian patent published in 2022 - IPC B23K26/60 B23K26/352 

Abstract RU 2771904 C1

FIELD: ferrous metallurgy.

SUBSTANCE: invention relates to the field of ferrous metallurgy, in particular, to the production of thin sheet anisotropic electrical steel used for the manufacture of magnetic cores of power and distribution transformers. The metal strip of anisotropic electrical sheet steel is cleaned from fatty and inorganic contaminants after cold rolling. Laser radiation is used in the form of ultrashort powerful light pulses at a radiation power of 60-80 W and a pulse repetition rate of 260-290 kHz.

EFFECT: method improves the quality of the heat-resistant coating applied after said cleaning of thin sheet anisotropic electrical steel, due to a more complete removal of contaminants.

1 cl, 2 tbl, 1 ex

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RU 2 771 904 C1

Authors

Olkov Stanislav Aleksandrovich

Karenina Larisa Solomonovna

Khromov Aleksandr Mikhajlovich

Puzanov Mikhail Pavlovich

Podchinenov Anton Pavlovich

Tyukov Aleksej Igorevich

Dates

2022-05-13Published

2021-09-08Filed