Fe-Ni Manufacturing method of Fe-Ni based alloy strip

摘要

An object of the present invention is to provide a method of manufacturing a material that can achieve both excellent steepness and low cost in a thin Fe-Ni alloy thin plate having a thickness of 0.25 mm or less. In order to solve the above problems, the present invention provides a method of producing a Fe-Ni alloy thin plate, comprising: 35.0 to 43.0% of Ni + Co (with 0 to 6.0% of Co) The remainder is composed of Fe and impurities and includes a step of preparing a material for cold rolling through a hot rolled material and a cold rolling step of repeating cold rolling and continuous annealing at least once, A thickness of 0.25 mm or less is carried out under the conditions of a rolling load of 150 kgf / mm or less in width, a rolling speed of 1.7 m / s or more and a front tension of 250 to 400 MPa, and the heat treatment is not performed after the final cold- .