Magnetic-anisotropic plastically deformed body, method for producing the same, and electromagnetic apparatus using the same

A method for producing a magnetic-anisotropic plastically deformed body, the magnetic-anisotropic plastically deformed body comprising a soft magnetic substance and exhibiting a magnetic anisotropy, the method comprising the steps of:

• plastically deforming a material containing the soft magnetic substance to obtain a rod-shaped body;
• and
• subjecting the rod-shaped body or a shaped body obtained by processing the rod-shaped body into a shape other than a flat plate shape, to a heat treatment in the presence of a magnetic field to achieve the magnetic anisotropy, thereby obtaining the magnetic-anisotropic plastically deformed body.

An electromagnetic apparatus comprising a magnetic circuit, the magnetic circuit containing an electromagnetic coil for generating a magnetic field when the electromagnetic coil is energized, the magnetic field disappearing when the energization is stopped, and a soft magnetic member which is magnetized and demagnetized respectively by the generation and disappearance of the magnetic field,

• wherein the soft magnetic member is a plastically deformed body obtained by processing a material containing a soft magnetic substance into a shape other than a flat plate shape, and the plastically deformed body is a magnetic-anisotropic plastically deformed body exhibiting a magnetic anisotropy.