Magnet alloy and its production

Abstract

Abstract PURPOSE:To produce a blank material for a magnet alloy directly from molten metal without using any casting mold, by ejecting a molten magnet alloy continuously under pressurization onto the surface of a rotating body and solidifying quickly the same. CONSTITUTION:A molten magnet alloy is ejected continuously under pressurization on the surface of a rotating body under rotation and is quickly solidified, whereby a plate material having <=0.5mm. thickness or a bar material having <=0.5mm. diameter is produced directly from the molten metal without using any casting mold. The temp. of the molten metal in this stage is preferably about the liquid phase temp. of the alloy + (100-400 deg.C), the ejection pressure Pm is preferably about 1<Pm<=2(kg/cm<2>) and the speed of drawing out the blank material is preferably about 1-40m/sec. The ejection into an inert gas is more preferable. The compsn. of the magnet alloy is a spinodal decomposition type Fe- Cr-Co magnet alloy contg., by weight, 10-45% Cr, 3-38% Co, total <=10% rare earth elements such as Ce, Sm or the like and secondary component elements such as Ti, V, or the like and the balance consisting substantially of Fe.

Inventors

• 👤 Norio Toyosaki
• 👤 豊崎　則男
• 👤 Masao Ogata
• 👤 正男 緒方
• 👤 Akio Kobayashi
• 👤 明男 小林
• 👤 Kazunori Tawara
• 👤 田原　一憲

Bibliographic Details