Method for manufacturing grain-oriented silicon steel sheet

Details Method for manufacturing grain-oriented silicon steel sheet Method for manufacturing grain-oriented silicon steel sheet

1984-11-30

1986-03-18

Sheehan, John P.

Metal treatment

Process of modifying or maintaining internal physical...

Magnetic materials

148113, H01F 104

Patent

active

045766584

ABSTRACT:
A method for obtaining grain-oriented silicon steel sheet with a very high magnetic flux density and a very low core loss by setting specific conditions for the decarburization and primary recrystallization annealing step within the series of steps performed for the manufacture of the grain-oriented silicon steel sheet. This method consists of setting the rate of temperature rise in the decarburization and primary recrystallization annealing step at no less than 10.degree. C./sec, dividing the decarburization and primary recrystallization annealing step into a first half and a second half, and restricting the temperature, time, and ratio P.sub.H.sbsb.2.sub.O /P.sub.H.sbsb.2 of the partial pressure of H.sub.2 O to the partial pressure of H.sub.2 of the atmosphere for each of these two halves within certain predefined ranges.

REFERENCES:
patent: 3823042 (1984-07-01), Bolling et al.
patent: 4268326 (1981-05-01), Iwayama et al.
patent: 4280856 (1981-07-01), Inokuti et al.

Affiliated with

Also associated with

Rating

Method for manufacturing grain-oriented silicon steel sheet does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for manufacturing grain-oriented silicon steel sheet, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for manufacturing grain-oriented silicon steel sheet will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2304098