Method for annealing a core blank used in electric machinery and

Details Method for annealing a core blank used in electric machinery and Method for annealing a core blank used in electric machinery and

1985-10-16

1986-07-29

Brody, Christopher W.

Metal treatment

Process of modifying or maintaining internal physical...

Magnetic materials

148154, 219 1041, 219 1057, C21D 142

Patent

active

046029699

ABSTRACT:
The present invention relates to a method for annealing a core blank of a transformer or the like so as to relieve the stress generated in the electrical steel sheet sections due to blanking.
The present invention is an improvement over the conventional resistance or gas-heating method in the light of heating efficiency and time and is characterized by induction-heating a core blank at a power input range of from 0.5 to 3 kW/kg of the core blank. This range attains a small variation in the shape of a core blank due to induction-heating.

REFERENCES:
patent: 3932205 (1976-01-01), Lindholm
patent: 4281234 (1981-07-01), Dohogne
patent: 4355221 (1982-10-01), Lin

Affiliated with

Also associated with

Rating

Method for annealing a core blank used in electric machinery and 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 annealing a core blank used in electric machinery and, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for annealing a core blank used in electric machinery and will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-698828