Multipolarly magnetized magnet
    1.
    发明授权
    Multipolarly magnetized magnet 失效
    多极磁化磁铁

    公开(公告)号:US4702852A

    公开(公告)日:1987-10-27

    申请号:US939850

    申请日:1987-02-12

    CPC分类号: H01F1/113 H01F7/021

    摘要: There is provided a multipolarly magnetized anisotropic plastics magnet formed by molding, followed by solidifying, a composition composed of a magnetic powder and an organic binder in the presence of a magnetic field, and subsequently multipolarly magnetizing the thus obtained anisotropic plastics magnet, said magnetic powder being magnetoplumbite ferrite which is characterized by that the green density is not less than 3.1 g/cm.sup.3 and the intrinsic coercive force of the green compact is not more than 2500 oersteds. The plastics magnet is useful as an anisotropic plastics magnet rotor having a great value of surface magnetic field.

    摘要翻译: PCT No.PCT / JP86 / 00176 Sec。 371日期1987年2月12日 102(e)日期1987年2月12日PCT提交1986年4月10日PCT公布。 出版物WO86 / 06207 日本1986年10月23日。提供了一种通过在磁场存在下成型,随后固化由磁性粉末和有机粘结剂组成的组合物形成的多极磁化各向异性塑料磁体,随后将如此获得的多极磁化 各向异性塑料磁体,所述磁粉为磁铅铁氧体,其特征在于,绿色密度不小于3.1g / cm 3,生坯的固有矫顽力不超过2500奥斯特。 塑料磁体可用作具有大的表面磁场值的各向异性塑料磁体转子。

    Propylenic copolymer and its film
    5.
    发明授权
    Propylenic copolymer and its film 失效
    丙烯共聚物及其膜

    公开(公告)号:US6130305A

    公开(公告)日:2000-10-10

    申请号:US955450

    申请日:1997-10-21

    摘要: Disclosed are a binary random copolymer of propylene and ethylene, and a film to be formed by sheeting the copolymer. The film has good impact strength, good heat-sealability, high stiffness, good anti-blocking and slipping properties, and high transparency. As having excellent heat-sealability at low-temperature, the copolymer and its film are favorably used as substrate layers of laminated or co-extruded multi-layered films.

    摘要翻译: 公开了丙烯和乙烯的二元无规共聚物和通过将共聚物成片形成的膜。 该膜具有良好的冲击强度,良好的热封性,高刚度,良好的防粘连和滑动性能,透明度高。 由于在低温下具有优异的热封性,所以共聚物及其膜有利地用作叠层或共挤出多层膜的基材层。

    Anisotropic permanent magnet
    8.
    发明授权
    Anisotropic permanent magnet 失效
    各向异性永磁体

    公开(公告)号:US06304162B1

    公开(公告)日:2001-10-16

    申请号:US09597615

    申请日:2000-06-20

    IPC分类号: H01F702

    CPC分类号: H01F41/028 H01F7/02

    摘要: An anisotropic permanent magnet with an improved surface magnetic field peak value is provided, which has at least one active surface and is oriented and magnetized simultaneously in such a manner that axes of easy magnetization of magnetic powder constituting the permanent magnet pass from the active surface through an interior of the magnet to return to the active surface, wherein a standard magnetic pole and a background opposite magnetic pole are present as an island and a sea, and the ratio of an area of the standard magnetic pole to an area of the background opposite magnetic pole is 9 to 90:91 to 10. Also, a permanent magnet for attraction with an improved attraction force is provided, wherein a total area &Sgr;S of an S pole surface and a total area &Sgr;N of an N pole surface satisfy a relationship: 0.5×&Sgr;S≦&Sgr;N≦2.0×&Sgr;S or 0. 5×&Sgr;N≦&Sgr;S≦2.0×&Sgr;N.

    摘要翻译: 提供具有改善的表面磁场峰值的各向异性永久磁体,其具有至少一个有效表面并且以这样的方式同时取向和磁化,使得构成永磁体的磁粉的易磁化轴从活性表面通过 磁体的内部返回到有源表面,其中标准磁极和背景相反的磁极作为岛和海存在,并且标准磁极的面积与背景区域的比率相反 磁极为9〜90:91〜10。另外,提供吸引力提高的永久磁铁,其中S极面的总面积SIGMAS和N极面的总面积SIGMAN满足关系: 0.5xSIGMAS <= SIGMAN <= 2.0xSIGMAS或0. 5xSIGMAN <= SIGMAS <= 2.0xSIGMAN。