Patent ID: 6749693
Filing Date: 2004-06-15
Classification: C21D

Abstract:
A method of producing a strip suitable for further processing to yield a (110)[001] grain oriented electrical steel comprising the steps of:a. obtaining a strip having an initial thickness of &lE;0.39 in (10 mm); b. hot rolling the strip of step a; c. annealing the strip of step b; and d. having a strain/recrystallization parameter, (K*)âˆ’1, &gE;about 6500; wherein, (K*)-1=(THBA)&it;ln&af;[e.0.15&it;exp&af;(7616THR)&it;ln&af;(tctf)]THBA is the annealing temperature of the strip of step c (in Â°Kelvin), THR is the hot rolling temperature of the strip of step b (in Â°Kelvin), {dot over (&egr;)} is the strain rate of hot rolling, ti is the initial thickness of the strip in step a before hot rolling, and tf is the final thickness of the strip after hot rolling of step b.