Thin strip of permanent magnet and manufacture thereof

Abstract

Abstract PURPOSE:To obtain a thin strip of permanent magnet having fine magnetic characteristic and high flexibility by adding specified elements to promote formation of (100) plane compound structure of Fe-Cr-Co system magnetic alloy. CONSTITUTION:The mixture which consists of 15-35wt% Cr, 10-40wt% Co, 0.2-9wt% one or plural elements selected out of a group constructed with Si, Al, Ti, Zr, Hf, V, Nb, Ta, Mo and W and the remainder of which consists of Fe substantially is molten. This molten liquid is spouted onto a rotating surface of a drum or a roll rotating at peripheral velocity of 1m/sec or more, thereby it is solidified by rapid quench with cooling velocity of 1,000 deg.C/sec or more to become a thin strip. Treatment for ageing with temp. of 300-700 deg.C is applied to the thin strip after annealing with temp. of 1,000-1,300 deg.C.

Inventors

• 👤 Masashi Sahashi
• 👤 政司 佐橋
• 👤 Tetsuhiko Mizoguchi
• 👤 徹彦 溝口

Bibliographic Details