Metal treatment – Process of modifying or maintaining internal physical... – Magnetic materials
Patent
1986-06-13
1988-08-09
Sheehan, John P.
Metal treatment
Process of modifying or maintaining internal physical...
Magnetic materials
148112, 148120, H01F 104
Patent
active
047625759
ABSTRACT:
A process for the production of an electrical steel sheet having the ideal (100) [001] cube texture of iron of iron alloy, comprising cold rolling a sheet of a single crystal or large grained crystals of iron or iron alloy, in which said single crystal is or a majority of said large grained crystals are oriented so that the pole of the {114} plane may form an angle not greater than 15.degree. with the normal direction of the plane of the sheet, and the <401> direction may form an angle of not greater than 15.degree. with a single direction in the plane of the sheet, in said single direction at a rolling reduction of at least 40%, and annealing the rolled sheet to form a primary recrystallization texture of fine grains of an average grain size of not larger than 5 mm under conditions preventing the occurrence of secondary recrystallization.
REFERENCES:
patent: 2943007 (1960-06-01), Walker et al.
patent: 3058857 (1962-10-01), Pavlovic et al.
patent: 3090711 (1963-05-01), Kohler
patent: 3695946 (1972-10-01), Demeaux
Fujimoto Hiroshi
Hoshino Kazuo
Igawa Takashi
Sakakura Akira
Uematsu Yoshihiro
Nisshin Steel Co. Ltd.
Sheehan John P.
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