Technology for producing wide band of orientated silicon steel with thickness less than or equal to 0.15mm


Application Number: 00114390
Application Date: 2000.03.03
Publication Number: 1264748
Publication Date: 2000.08.30
Priority Information:
International: C21D8/12;C22C38/16
Applicant(s) Name: Wuhan Iron and Steel (Group) Co.
Address:
Inventor(s) Name: Ji Fuxiang;Tao Jijun;Ying Hong
Patent Agency Code: 42102
Patent Agent: duan jiaojiao
Abstract A technology for manufacturing wide band of orientated silicon steel with thickness less than 0.15 mm features that its main components are C (0.042-0.046 wt.%), Si (3.05-3.20), Mn (0.055-0.061), P (less than 0.015), S (0.024-0.029), Al (less than 0.0025), N (0.0035-0.0055) and Cu (0.10-0.20). Its technological steps include hot rolling, pickling, cold rolling,intermediate annealing, cold rolling again in the condition of 56-70% press-down rate, coating MgO, high-temp annealing in the mixture of nitrogen and hydrogen gases, stretching, flatening and shearing.