Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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 1000.degree. to 1100.degree. C. and then purification is effected above 1100.degree. 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
Visual model importation
Vacuum cleaner
Method and apparatus for providing seamless call handoff between networks that use dissimilar transmission methods
Process for making thermoplastic polymer pellets
Spray drying vancomycin
Fuse part in semiconductor device and method for forming the same
Carbon dioxide capture system and methods of capturing carbon dioxide
  Randomly Featured Patents
Array antenna apparatus having at least two feeding elements and operable in multiple frequency bands
Suppression of glial fibrillary acidic protein
Camper's tablecloth set
Naphthyridines which affect IL-4 and G-CSF
Thermoplastic resin composition
Method and apparatus for adjustable cutting of a filamentary material
Green sheet coating material, green sheet, production method of green sheet and production method of electronic device
Method and system for a gaming or gambling operator for issuing secondary value for redemption of primary value
Method of producing hollow electroformed product of precious metal
Cut-off valve