Method for improvement of magnetic property of thin strip of amorphous alloy
AssigneesAgency of Industrial Science and Technology, Ministry of International Trade & Industry
InventorsTakehiko Satoh, Sonoko Tsukahara, Tachiro Tsushima
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Abstract
The magnetic properties of a thin strip of amorphous alloy are improved by imparting external stress such as tensile force and compressive force as by means of rollers to the surfaces of the thin strip of alloy while keeping the thin strip heated at a temperature which does not impair the mechanical properties of the amorphous alloy, thereby eliminating the internal stress of the alloy which tends to impair the magnetic properties.
Claims6
A method for improving the magnetic properties of a thin strip of amorphous alloy, comprising bending the thin strip of amorphous alloy by means of a roller having a fixed radius of curvature in such a manner that the surface opposite to the surface which came into contact with the cooling roller for producing amorphous alloy to impart tensile force and compressive force to the surfaces at a temperature lower than the crystallization transition point of the alloy, thereby promoting the alleviation of the internal stress present in the thin strip and improving the magnetic properties of the alloy.
A method for improving the magnetic properties of a thin strip of amorphous alloy, comprising alternately bending the thin strip of amorphous alloy toward one surface and then the other at equal radii of curvature to impart tensile force and compressive force to the surfaces at a temperature lower than the crystallization transition point of the alloy thereby promoting the alleviation of the internal stress present in the thin strip and improving the magnetic properties of the alloy.
Dependencies are inferred from the claim text.