Development of grain-oriented iron sheet for electrical apparatu

Details Development of grain-oriented iron sheet for electrical apparatu Development of grain-oriented iron sheet for electrical apparatu

1979-02-07

1981-05-05

Rutledge, L. Dewayne

Metal treatment

Process of modifying or maintaining internal physical...

Magnetic materials

148122, H01F 100

Patent

active

042656834

ABSTRACT:
This is a method of producing grain-oriented, iron sheet for electrical applications. The process utilizes relatively pure iron which is deoxidized to have less than 50 ppm of oxygen. The carbon content is adjusted to 0.01-0.02 wt. % (preferably 0.010-0.015 wt. %). The material is hot rolled at a temperature of at least 800.degree. C., cold rolled with a 60-75% reduction, recrystallized in an non-oxidizing atmosphere at 700.degree.-820.degree. C., cold rolled a second time with a 60-75% reduction, annealed at 700.degree.-825.degree. C. in a non-oxidizing atmosphere and cold rolled a third time with a 60-75% reduction and final annealed at 850.degree.-900.degree. C. for 50-200 hours in a reducing atmosphere.

REFERENCES:
patent: 3351501 (1967-11-01), Aspden
patent: 3573112 (1971-03-01), Aspden
patent: 3636579 (1972-01-01), Sakakura et al.
patent: 3849212 (1974-11-01), Thornburg
patent: 3881967 (1975-05-01), Cochardt
patent: 3892605 (1975-07-01), Thornburg

Affiliated with

Also associated with

Rating

Development of grain-oriented iron sheet for electrical apparatu does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Development of grain-oriented iron sheet for electrical apparatu, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Development of grain-oriented iron sheet for electrical apparatu will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-294958