Method of producing soft magnetic steel materials

Details Method of producing soft magnetic steel materials Method of producing soft magnetic steel materials

C - Chemistry, Metallurgy

21

D

148/9

C21D 8/12 (2006.01) C22C 38/06 (2006.01) H01F 1/147 (2006.01) H01F 41/00 (2006.01)

Patent

CA 2019187

ABSTRACT OF THE DISCLOSURE The invention is concerned with a method of producing economically soft magnetic ferrous materials with high magnetic permeability. A cast piece or a steel piece, where sol.Al is added 0.5 to 2.0 wt% to pure iron - composition and Ti is added 0.005 to 1.0 wt% as required, is hot worked as specified temperatures and at specified work finishing temperatures, and finally annealed 900 to 1300°C, preferably 1000 to 1300°C, thereby to obtain soft magnetic materials having coercive force of lower than 0.4 Oe and magnetic flux density of more than 10000 G at the magnetic field of 0.5 Oe.

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