POSTUPAK ZA IZRADU TRAKE NEORIJENTISANOG ELEKTRO ČELIKA

POSTUPAK ZA IZRADU TRAKE NEORIJENTISANOG ELEKTRO ČELIKA, koji ima veliku gustinu magnetnog fluksa, naznačen time, što se čelik ultra-brzo odgreva brzinom od preko 100В°C u sekundi, do temperature od 750 do 1150В°C, za period kvašenja manji od pet minuta. Prijava sadrži 10 zavisnih zahteva. POSTUPAK ZA IZRADU TRAKE NEORIJENTISANOG ELEKTRO CELIKA, koji ima veliku gustinu magnetnog fluksa, naznacen time, sto se celik ultra-brzo odgreva brzinom od preko 100°C u sekundi, do temperature od 750 do 1150°C, za period kvasenja manji od pet minuta. Prijava sadrzi 10 zavisnih zahteva. Ultra-rapid annealing of nonoriented electrical steel is conducted at a rate above 100 DEG C per second on prior to or as part of the strip decarburization and/or annealing process to provide an improved texture and, thereby, improved permeability and reduced core loss. During the ultra-rapid heating of cold-rolled strip, the recrystallization texture is enhanced by more preferential nucleation of {100} and {110} oriented crystals and reduced formation of {111} oriented crystals. The preferred practice has a heating rate above 262 DEG C per second to a peak temperature between 750 DEG C and 1150 DEG C and held at temperature for 0 to 5 minutes.