公开(公告)号：US5464670A

公开(公告)日：1995-11-07

申请号：US188733

申请日：1994-01-31

申请人： Takeshi Ikuma ,  Masaaki Sakata ,  Hiroharu Akioka ,  Tatsuya Shimod

发明人： Takeshi Ikuma ,  Masaaki Sakata ,  Hiroharu Akioka ,  Tatsuya Shimod

IPC分类号： H01F41/02 ,  B32B1/08

CPC分类号： H01F41/0273 ,  Y10S428/90 ,  Y10T428/1355 ,  Y10T428/139

摘要： A resin bonded magnet including a rare earth magnetic powder and an organic resin moulded into a single body having a cylindrical form. The resin bonded magnet satisfies the condition:2 DL/d.sup.2 .gtoreq.1.56where D is the outer diameter of the magnet, d is the inner diameter, and L is the magnet's length. The rare earth magnetic powder has a coercivity between 7 kOe and 12 kOe. The magnetic powder has an average particle size, r, satisfying:1 .mu.m.ltoreq.r.ltoreq.0.1 t(t.ltoreq.1 mm)where t is the thickness of the moulded article.

摘要翻译： 一种树脂粘结磁体，包括稀土磁性粉末和模制成具有圆柱形的单体的有机树脂。 树脂粘结磁体满足条件：2 DL / d2> / = 1.56其中D是磁体的外径，d是内径，L是磁体的长度。 稀土磁粉的矫顽力在7kOe与12kOe之间。 磁性粉末的平均粒径r满足：1μmm / r = 0.1t（t≤1mm）其中t是模制品的厚度。