METHOD OF PRODUCING GALVANIZED STRIP Russian patent published in 2025 - IPC B21B1/24 B21B27/02 B21B28/02 

FIELD: performing operations.

SUBSTANCE: invention relates to production of galvanized strip. Hot-dip galvanizing and wet tempering are performed with specific force of 100-250 t/m by roller with density of peaks of 50-100 1/cm. Roll is made by electric-discharge texturing, during which direct and reverse passes are performed by electrodes with action on the roll with electrodes and with breaks between them. At the same time for 2-3 straight passes 1-2 reverse passes are performed. Time of action of the electrodes on the roll during the direct pass does not exceed 40 mcs and is 2.7-3.7 times longer than the time during the reverse pass. Current intensity during forward passage does not exceed 25 A and is 1.7-2.7 times higher than current intensity during reverse passage.

EFFECT: reduced defect of peeling during stamping of articles from produced zinc strip with preservation of good adhesion of galvanized strip with paint-and-lacquer coating.

6 cl, 1 tbl