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Primary Examiner: Satterfield, Walter R.
Assistant Examiner:
Attorney:

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Title: Method for manufacturing single-oriented electrical steel sheets comprising antimony and having a high magnetic induction

Abstract: Single-oriented electrical steel sheets having a high magnetic induction can be produced by hot rolling a silicon steel raw material containing less than 0.06% of C and less than 4% of Si, subjecting to annealing step and cold rolling step conveniently repeatedly to form a cold rolled steel sheet having a final gauge and subjecting to a decarburization annealing and a final annealing to develop secondary recrystallized grains having (110)[001] orientation, said silicon steel raw material being characterized in containing 0.005-0.200% of Sb and less than 0.10% of at least one of Se and S. Said final annealing for secondary recrystallization at a temperature of 800.degree.-920.degree.C gives a preferable result.

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Inventors: Imanaka, Takuichi (Chiba, JA)
Kan, Takahiro (Chiba, JA)
Obata, Yoshio (Chiba, JA)
Sato, Toru (Chiba, JA)

Application Number: 404776
Filing Date: 1973-10-09
Publication_date: 1976-01-13
Assignee: Kawasaki Steel Corporation (Kobe, JA)
Primary Class(es): 148/112 148/111, 148/308
Other Classes:
US Patent Ref:

2209687	Jul, 1940	Crafts	148/111.
2599340	Jun, 1952	Littmann et al.	148/111.
3556873	Jan, 1971	Malagari	148/31.
3700506	Oct, 1972	Tanaka et al.	148/111.
3853641	Dec, 1974	Sakakura et al.	148/111.

Other Refs: 38-8214

Jun, 1963	JA

Other References: Saito, T; Effect of Minor Elements . . . in Oriented Si-Steel, in Nihon Kinz, Shi, 27 (4) 1963, pp. 186-191.
Saito, T; Effect of Minor Elements . . . on Secondary Recrystallization, IBID, p. 191.