Non-oriented electrical strip and process for its production

Details Non-oriented electrical strip and process for its production Non-oriented electrical strip and process for its production

1990-12-04

1993-11-02

Wyszomierski, George

Metal treatment

Stock

Magnetic

148308, C22C 3802, C22C 3806

Patent

active

052580806

ABSTRACT:
The invention relates to a non-oriented electrical strip having high proportions of cube or cube on face texture, a polarization of J 2500>1.7 T and a low core loss, and also to a process for its production. A steel slab, containing max. 0.025% C, less than 0.1% Mn, 0 to 0.15% boundary-surface-active elements and Si and Al in such a way that the relations (% Si)+2(% Al)>1.6% and (% Si)+(% Al)<4.5% are met, balance iron, is hot rolled to a thickness not lower than 3.5 mm. The resulting hot rolled strip is then cold rolled with a degree of reduction of at least 86% without intermediate recrystallization annealing and, if necessary, final annealed.

REFERENCES:
patent: 3034935 (1962-05-01), Walter et al.
patent: 3971678 (1976-07-01), Vlad
patent: 4204890 (1980-05-01), Irie et al.
patent: 4946519 (1990-08-01), Honda et al.

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