Manufacture of manganese-aluminum-carbon alloy magnet

Abstract

Abstract PURPOSE:To obtain an outside circumference or inside circumference magnetizing alloy magnet having high performance, by performing compressive strain in the easily magnetizing direction by a specified value or more by an absolute value of logarithmic strain, by plastic working, to a billet consisting of a magnet for a polycrystalline Mn-Al-C alloy. CONSTITUTION:A billet 7 consisting of a magnet for a polycrystalline Mn-Al- C alloy having the easily magnetizing direction in one specified direction is stored in a bearing part, and the billet 7 is pressed by a punch 6. Subsequently, at 530-830 deg.C, a new billet 8 is stored in a container part, this billet 7 is pressed by use of a punch 5 and the punch 6, and the punch 6 is moved in the direction going toward the bearing part from the container part relatively against a die, and is pressed. Subsequently, the billet 7 is removed, a billet 9 is stored, said method is repeated, and compressive strain is performed to the billet 7 by >=0.1 by an absolute value of logarithmic strain, in the easily magnetizing direction.

Inventors

• 👤 Akihiko Ibata
• 👤 昭彦 井端

Bibliographic Details