公开(公告)号：US5871851A

公开(公告)日：1999-02-16

申请号：US920174

申请日：1997-08-25

申请人： Keisuke Fukumizu ,  Hiroaki Kato ,  Teruo Takeuchi ,  Takahide Shimazu ,  Yasuo Sato ,  Tatsuo Amaike ,  Ryoichi Yoshihara ,  Takeshi Harada

发明人： Keisuke Fukumizu ,  Hiroaki Kato ,  Teruo Takeuchi ,  Takahide Shimazu ,  Yasuo Sato ,  Tatsuo Amaike ,  Ryoichi Yoshihara ,  Takeshi Harada

IPC分类号： C21D8/02 ,  C21D8/12 ,  H01J29/06 ,  B32B15/18

CPC分类号： H01J29/06 ,  C21D8/0236 ,  C21D8/1277 ,  C21D8/0278 ,  C21D8/1233 ,  Y10T428/12854 ,  Y10T428/12937

摘要： A 0.1 to 0.5 mm-thick plated steel sheet having high coercive force and magnetic flux density is provided by hot rolling a slab comprising by weight carbon: 0.01 to 0.09%, silicon: not more than 1.0%, phosphorus: not more than 0.3%, manganese: not more than 1.5%, sulfur: not more than 0.04%, aluminum: not more than 1.0%, and nitrogen: not more than 0.01% with the balance consisting of iron and unavoidable impurities, cold rolling the hot rolled sheet, annealing the cold rolled sheet to prepare a steel sheet having an average grain diameter of 3 to 15 .mu.m, temper rolling the steel sheet with a reduction ratio of not more than 3%, and plating the temper rolled sheet with chromium or nickel. This enables the provision of a magnetic shielding material having no significant drift and very good electron beam landing properties.

摘要翻译： 通过热轧含有重量百分比为0.01〜0.09％的硅，不超过1.0％的磷，不超过0.3％的平板，提供具有高矫顽力和磁通密度的0.1〜0.5mm厚的镀覆钢板， ，锰：不大于1.5％，硫：不大于0.04％，铝：不大于1.0％，氮：不大于0.01％，余量由铁和不可避免的杂质组成，冷轧热轧板， 对冷轧板进行退火，制备平均粒径为3〜15μm的钢板，以3％以下的压下率对钢板进行回火处理，并对铬或镍进行镀层。 这使得能够提供没有显着漂移的磁屏蔽材料和非常好的电子束着陆性能。

公开(公告)号：US07202593B2

公开(公告)日：2007-04-10

申请号：US10476403

申请日：2003-02-18

申请人： Hideki Matsuoka ,  Reiko Sugihara ,  Kenji Tahara ,  Noriko Kubo ,  Keisuke Fukumizu ,  Teruo Takeuchi ,  Hiroaki Kato

发明人： Hideki Matsuoka ,  Reiko Sugihara ,  Kenji Tahara ,  Noriko Kubo ,  Keisuke Fukumizu ,  Teruo Takeuchi ,  Hiroaki Kato

IPC分类号： H01J29/80

CPC分类号： C22C38/004 ,  B21B3/02 ,  C21D8/12 ,  C22C38/02 ,  C22C38/04 ,  H01F1/16 ,  H01J29/06 ,  H01J2229/8634

摘要： A steel sheet for an inner magnetic shield has a ratio of the anhysteretic magnetic permeability in the rolling direction to the anhysteretic magnetic permeability in the transversal direction, which is not higher than 0.7 or not lower than 1.4, preferably not higher than 0.5 or not lower than 2.0. A higher value of the two anhysteretic magnetic permeability values in the rolling direction and in the transversal direction is not lower than 18000. The inner magnetic shield formed of the particular steel sheet has a substantially truncated pyramid body which has a pair of short side members of a screen and a pair of long side members of a screen. The short side members are joined to the long side members at edge portions of the truncated pyramidal inner magnetic shield. The direction, in which the anhysteretic magnetic permeability of the steel sheet is the higher value, corresponds to the horizontal plane direction of the short side member. In addition, the direction, in which the anhysteretic magnetic permeability of the steel sheet is the higher value, corresponds to as required to the horizontal plane direction of the long side member.

摘要翻译： 内磁屏蔽用钢板的横向的非磁滞磁导率与横向的非磁滞磁导率之比为0.7以下，优选为0.7以上，优选为0.5以下， 超过2.0。 两个非磁滞磁导率值在轧制方向和横向方向上的值越高越好，不小于18000.由特定钢板形成的内磁屏蔽件具有基本截头棱锥体，该主体具有一对短边构件 屏幕和一对屏幕的长边成员。 短边构件在截顶锥形内磁屏蔽的边缘部分处连接到长边构件。 钢板的非磁滞磁导率越高的方向对应于短边部件的水平面方向。 此外，钢板的非磁滞磁导率为更高值的方向对应于长边构件的水平面方向的要求。