The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 14, 1978
Filed:
Jun. 17, 1976
Applicant:
Inventor:
Frank A Malagari, Jr, Freeport, PA (US);
Assignee:
Allegheny Ludlum Industries, Inc., Pittsburgh, PA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01F / ;
U.S. Cl.
CPC ...
148111 ; 148 3155 ; 148112 ; 7512 / ;
Abstract
A process for producing electromagnetic silicon steel having a cube-on-edge orientation and a permeability of at least 1870 (G/O.sub.e) at 10 oersteds. Involved therein are the steps of cold rolling a hot rolled band to final gage without an intermediate anneal between cold rolling passes; and preparing said band from a melt having 0.0006 to 0.0018% boron, and manganese and sulfur contents which produce a manganese to sulfur ratio of at least 1.83 in said band.