Electrolytic pickling of silicon electrical steel sheet

Details Electrolytic pickling of silicon electrical steel sheet Electrolytic pickling of silicon electrical steel sheet

1978-12-18

1979-12-11

Mack, John H.

Metal treatment

Process of modifying or maintaining internal physical...

Magnetic materials

148113, 20412943, H01F 104, B23P 100

Patent

active

041781945

ABSTRACT:
The electrolytic pickling of silicon electrical steel sheet that follows hot rolling, is improved by limiting the potential imposed on the steel, during the anodic phase thereof, to less than +1 V with respect to the standard hydrogen electrode, preferably less than +0.8 V. The avoidance of electrolysis of the aqueous medium shortens the treatment time, reduces energy consumption, avoids over-pickling, facilitates subsequent rolling, reduces the subsequent rolling load, improves adherence of the subsequently applied glass film, and renders more uniform the magnetic characteristics of the steel.

REFERENCES:
patent: 2197653 (1940-04-01), Wilson
patent: 2374449 (1945-04-01), Mulcahy
patent: 2820003 (1958-01-01), Logan et al.
patent: 3905885 (1975-09-01), Bengel et al.
patent: 3932236 (1976-01-01), Wada et al.

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