公开(公告)号：US20060082035A1

公开(公告)日：2006-04-20

申请号：US10545585

申请日：2004-02-18

申请人： Eiji Sugiyama ,  Masaaki Aoki ,  Hiroyuki Kenju ,  Ryouichi Utsumi ,  Kiichi Itagaki

发明人： Eiji Sugiyama ,  Masaaki Aoki ,  Hiroyuki Kenju ,  Ryouichi Utsumi ,  Kiichi Itagaki

IPC分类号： C21D9/00 ,  C21D1/04 ,  H01F1/00

CPC分类号： G11B5/852

摘要： A magnetic annealing device for inserting a recording medium 1 provided with an axial hole formed at a center thereof and having a disk shape into a chamber 10 and applying a heat treatment to the recording medium 1 in a magnetic field is provided with a magnetic circuit for forming a magnetic field in the chamber 10, the magnetic circuit comprises a pair of magnets 4 and 5 disposed with a distance therebetween along an axial direction of the axial hole and having magnetic fields directionally opposed to each other and a first ferromagnetic substance 6 disposed between the pair of magnets 4 and 5, wherein the recording medium 1 to be heat-treated is disposed at an intermediate position between the pair of magnets 4 and 5 facing each other in the state in which the first ferromagnetic substance 6 is inserted into the axial hole. A second ferromagnetic substance 7 having a ring shape is preferably disposed in a periphery of the recording medium 1.

摘要翻译： 一种用于将设置有形成在其中心并具有盘形的轴向孔的记录介质1插入到室10中并且在磁场中对记录介质1进行热处理的磁性退火装置设置有用于 在室10中形成磁场，磁路包括一对磁体4,5，它们沿着轴向孔的轴向设置有一定距离，并且具有相互定向相对的磁场和第一铁磁体6， 一对磁体4和5，其中待热处理的记录介质1设置在一对磁体4和5之间的中间位置处，在第一铁磁性物质6插入到轴向 孔。 具有环形的第二铁磁性物质7优选设置在记录介质1的周围。