Method of manufacturing high permeability Fe-Ni system alloy.

摘要

A method of producing Fe-Ni system high permeability alloy comprising the steps of obtaining cast steel sheet 0.3 to 7 mm thick by direct casting of a steel melt containing 35 to 85% by weight of nickel with the balance of iron and unavoidable impurities, forcibly cooling the sheet from solidification to 1200 DEG C at a cooling rate of at least 75 DEG C/s, and cold-rolling the sheet at a reduction ratio of at least 20%.