Title: Steel slab containing silicon for use in electrical sheet and strip manufactured by continuous casting and method for manufacturing thereof

Abstract: A steel slab containing silicon for use as an electrical steel sheet and strip and having no blister occurrence in the final product manufactured by continuous casting, characterized in that said slab comprises 2.5 - 4.0 wt.% of silicon, less than 0.04% of aluminium, less than 3 ppm of hydrogen or less than 3 ppm of hydrogen together with less than 80 ppm of oxygen, and less than [Al(%) .times. 10.sup.3 + 50] ppm of nitrogen, with the remainder being essentially iron.

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Inventors: Oya, Tatsuo (Himeji, JA)
Motoyoshi, Minoru (Himeji, JA)
Okamoto, Masfumi (Himeji, JA)
Tanaka, Kiyoshi (Himeji, JA)
Sugiyama, Takayasu (Himeji, JA)

Application Number: 563980
Filing Date: 1975-04-01
Publication_date: 1977-02-01
Assignee: Nippon Steel Corporation (Tokyo, JA)
Primary Class(es): 148/308 148/110, 148/111, 148/112, 164/475
Other Classes:
US Patent Ref:

3163564	Dec, 1964	Taguchi et al.	148/111.
3214303	Oct, 1965	Fiedler	148/111.
3266955	Aug, 1966	Taguchi et al.	148/111.
3287183	Nov, 1966	Taguchi et al.	148/111.
3345219	Oct, 1967	Detert	148/112.
3522114	Jul, 1970	Knuppel et al.	148/111.
3632456	Jan, 1972	Sakakura et al.	148/111.
3764406	Oct, 1973	Littmann	148/111.

Other Refs:
Primary Examiner: Satterfield, Walter R.
Assistant Examiner:
Attorney: Toren, McGeady and Stanger