Metallurgical apparatus – Means treating solid metal – By contact with gas
Patent
1984-08-01
1986-11-11
Brody, Christopher W.
Metallurgical apparatus
Means treating solid metal
By contact with gas
266262, 4322542, C21D 9663
Patent
active
046217940
ABSTRACT:
In a process for producing a grain-oriented electromagnetic steel strip or sheet by annealing, for primary recrystallization, a cold rolled electromagnetic steel strip or sheet having a final thickness, and subjecting said strip or sheet to secondary recrystallization annealing by heating it so that any portion of said strip or sheet along its width or length may pass through the boundary between the temperature ranges for primary recrystallization and secondary recrystallization with a predetermined temperature gradient, the improvement wherein said secondary recrystallization annealing is achieved by applying a principal supply of heat to at least one end of a coil of said strip or a stack or a plurality of said sheets.
REFERENCES:
patent: 1977399 (1934-10-01), Northrup
patent: 2081990 (1937-01-01), Eberwein
patent: 2454253 (1948-11-01), Kniveton
patent: 2869856 (1959-01-01), Greene
patent: 3188068 (1965-06-01), Schmidt
patent: 4147506 (1979-04-01), Southern et al.
patent: 4310302 (1982-01-01), Thekdi et al.
patent: 4415145 (1983-11-01), Herdieckerhoft
Kokai Katsuaki
Ohta Takeo
Brody Christopher W.
Nippon Steel Corporation
LandOfFree
Apparatus for producing a grain-oriented electromagnetic steel s does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for producing a grain-oriented electromagnetic steel s, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for producing a grain-oriented electromagnetic steel s will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-373145