Resources Contact Us Home
Process for producing grain-oriented electrical steel sheet having high magnetic flux density

Image Number 8 for United States Patent #5186762.

A process for producing a grain-oriented electrical steel sheet having a high magnetic flux density, comprising the steps of: heating a steel slab comprising 1.8 to 4.8 wt % Si, 0.012 to 0.050 wt % acid-soluble A1, 0.010 wt % or less N, and the balance consisting of Fe and unavoidable impurities, to a temperature for hot rolling; hot-rolling the heated slab to form a hot-rolled strip; cold-rolling the hot-rolled strip to a final product sheet thickness at a final cold rolling reduction of 80% or more by a single step of cold rolling or by two or more steps of cold rolling with an intermediate annealing step inserted therebetween; primary-recrystallization-annealing the cold-rolled strip; final-annealing the primary-recrystallization-annealed strip so that secondary-recrystallized grains substantially completely grow up in a temperature region of from to C. and then purification is effected above C.; and subjecting the primary-recrystallization-annealed steel strip to a nitriding treatment before a secondary recrystallization occurs during the final annealing.

  Recently Added Patents
Meat-containing, strip shaped food product and method of making same
Soybean cultivar BY0811143
Plasma panel based radiation detector
Extensible framework for client-based active network measurement
Cryptographically generated addresses using backward key chain for secure route optimization in mobile internet protocol
Managing and collaborating with digital content
System and method for wireless messaging in a wireless communication system
  Randomly Featured Patents
Snap-hook with a locking bolt
Physical acuity test device
Engine blade clearance control system with piezoelectric actuator
Various methods and apparatuses for power states in a controller
Photographic camera with automatically controlled filter
Method and an apparatus for estimating residual noise in a signal and an apparatus utilizing the method
Process for the removal of carbon dioxide and mercaptans from a gas stream
Filament supporting structures in incandescent lamps and process for fixing filaments onto supports
Double collet connector assembly for bone anchoring element
Surface configuration of a forklift, toy, and/or other replicas