Metal treatment – Process of modifying or maintaining internal physical... – Magnetic materials
Patent
1978-01-12
1979-12-18
Rutledge, L. Dewayne
Metal treatment
Process of modifying or maintaining internal physical...
Magnetic materials
148 27, 148 315, H01F 104
Patent
active
041793153
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. The process includes the steps of: preparing a melt of a silicon steel containing from 0.02 to 0.06% carbon, from 0.0006 to 0.0080% boron, up to 0.0100% nitrogen, no more than 0.008% aluminum and from 2.5 to 4.0% silicon; casting said steel; hot rolling said steel; cold rolling said steel; decarburizing said steel; applying a refractory oxide coating containing both boron and SiO.sub.2 ; and final texture annealing said steel.
REFERENCES:
patent: 2809137 (1957-12-01), Robinson
patent: 3222228 (1965-12-01), Stanley et al.
patent: 3583887 (1971-06-01), Steger et al.
patent: 3700506 (1972-10-01), Tanaka et al.
patent: 3873381 (1975-03-01), Jackson
patent: 3905842 (1975-09-01), Grenoble
patent: 3905843 (1975-09-01), Fiedler
patent: 3932202 (1976-01-01), Lee et al.
patent: 3945862 (1976-03-01), Lee et al.
patent: 3957546 (1976-05-01), Fiedler
patent: 3976518 (1976-08-01), Kuroki
Allegheny Ludlum Industries, Inc.
Dropkin Robert F.
Gioia Vincent G.
Rutledge L. Dewayne
Sheehan John P.
LandOfFree
Silicon steel and processing therefore does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Silicon steel and processing therefore, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Silicon steel and processing therefore will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-452526