Production process of MN-Zn ferrite
    11.
    发明授权
    Production process of MN-Zn ferrite 失效
    MN-Zn铁氧体的生产工艺

    公开(公告)号:US06660189B2

    公开(公告)日:2003-12-09

    申请号:US09989495

    申请日:2001-11-21

    IPC分类号: H01B108

    摘要: The present invention provides a production process of a Mn—Zn ferrite that enables wastes of sintered cores to be recycled without serious difficulties in sintering. The production process comprises recycling a powder obtained by milling a sintered Mn—Zn ferrite, thereby obtaining a sintered core having a component composition including 44.0 to 49.8 mol % Fe2O3, 4.0 to 26.5 mol % ZnO, 1.0 to 3.0 mol % CoO, 0.02 to 1.00 mol % Mn2O3 and a remainder MnO.

    摘要翻译: 本发明提供了使烧结芯的废料再循环而不会严重烧结困难的Mn-Zn铁氧体的制造方法。 该制造方法包括将通过研磨Mn-Zn系烧结烧结体获得的粉末进行再循环,由此得到组成成分组成为烧结铁心的成分组成,其组成为:Fe2O3为44.0〜49.8mol%,ZnO为4.0〜26.5mol%,CoO为1.0〜3.0mol%,0.02〜 1.00mol%Mn 2 O 3,余量为MnO。

    Mn-Zn ferrite and production process thereof
    12.
    发明授权
    Mn-Zn ferrite and production process thereof 失效
    锰锌铁氧体及其制备方法

    公开(公告)号:US06547984B2

    公开(公告)日:2003-04-15

    申请号:US09761824

    申请日:2001-01-18

    IPC分类号: C04B3526

    CPC分类号: C04B35/2658 H01F1/344

    摘要: The present invention provides a Mn—Zn ferrite having an electrical resistivity exceeding 1 &OHgr;m order and having a high initial permeability of 3000 or more at 100 kHz and 100 or more at 10 MHz. The main components of the Mn—Zn ferrite are 44.0 to 49.8 mol % Fe2O3, 15.0 to 26.5 mol % ZnO, 0.02 to 1.00 mol % Mn2O3 and the remainder MnO. The Mn—Zn ferrite is enabled to be used in a wide frequency region from 100 kHz to 10 MHz by limiting Fe2O3 content to less than 50 mol % that is the stoichiometric composition and inhibiting formation of Mn2O3.

    摘要翻译: 本发明提供一种电阻率超过1欧姆等级的Mn-Zn铁氧体,并且在100kHz时具有3000或更高的初始磁导率,在10MHz时为100以上。 Mn-Zn铁氧体的主要成分是Fe2O3为44.0〜49.8mol%,ZnO为15.0〜26.5mol%,Mn2O3为0.02〜1.00mol%,余量为MnO。 通过将Fe 2 O 3含量限制为小于化学计量组成的50mol%并抑制Mn 2 O 3的形成,能够将Mn-Zn铁氧体用于100kHz至10MHz的宽频率区域。

    Common mode choke coil
    13.
    发明授权
    Common mode choke coil 失效
    共模扼流圈

    公开(公告)号:US06690257B2

    公开(公告)日:2004-02-10

    申请号:US10026631

    申请日:2001-12-27

    IPC分类号: H01F2728

    摘要: A common mode choke coil is described that is capable of providing improved characteristics at high frequencies. A bobbin having a toroidal core is mounted on a base. One coil is wound around one half of the bobbin and another coil is wound around the other half thereof. Both ends of each of the coils are connected to corresponding terminals provided on the base. The one coil has its one end connected to one of the terminals, is wound around one half of the bobbin from one side of the bobbin, finishes above the bobbin, that is, at the inner circumference of a core, leads out toward the other terminal provided on the base travelling along the outer face of a plate vertically mounted on the other side of the bobbin, and is connected to the terminal. The same applies to the other coil.

    摘要翻译: 描述了能够在高频率下提供改进的特性的共模扼流线圈。 具有环形芯的线轴安装在基座上。 一个线圈缠绕在线轴的一半上,另一个线圈缠绕在其另一半上。 每个线圈的两端连接到设置在基座上的相应的端子。 一个线圈的一端连接到一个端子,从绕线筒的一侧缠绕在线轴的一半上,在线轴的上方,即在芯的内圆周处,朝向另一端引出 端子,其设置在沿着垂直安装在筒管的另一侧的板的外表面上行进的基座上,并且连接到端子。 同样适用于另一个线圈。

    Mn-Zn ferrite and production process thereof
    14.
    发明授权
    Mn-Zn ferrite and production process thereof 失效
    锰锌铁氧体及其制备方法

    公开(公告)号:US06440323B1

    公开(公告)日:2002-08-27

    申请号:US09690902

    申请日:2000-10-18

    IPC分类号: B22F100

    摘要: This invention provides a Mn—Zn ferrite which has a high electrical resistance and can sufficiently satisfy the use in a high frequency region exceeding 1 MHz. This invention further provides a production process of the Mn—Zn ferrite in which mixed powder whose components are adjusted so as to have a basic component composition containing 44.0 to 50.0 mol% Fe2O3, 4.0 to 26.5 mol % ZnO, 0.1 to 8.0 mol % one or two from TiO2 and SnO2 and the remainder consisting of MnO, and further to contain 0.01 to 2.00 mass % one or more of CoO, NiO, and MgO as additive is pressed, then sintered and cooled in the air or in an atmosphere containing some amount of oxygen.

    摘要翻译: 本发明提供一种具有高电阻并能够充分满足超过1MHz的高频区域的用途的Mn-Zn铁氧体。 本发明还提供了一种Mn-Zn铁氧体的制造方法,其中调整成分为具有含有44.0〜50.0摩尔%的Fe 2 O 3,4.0〜26.5摩尔%的ZnO,0.1〜8.0摩尔%的ZnO的碱性成分组成的混合粉末 或者两个来自TiO 2和SnO 2,剩余部分由MnO组成,并且还含有0.01至2.00质量%的一种或多种CoO,NiO和MgO作为添加剂,然后在空气中或在含有一部分的气氛中烧结和冷却 氧气量。

    Process for producing Mn-Zn ferrite
    19.
    发明授权
    Process for producing Mn-Zn ferrite 失效
    生产Mn-Zn铁氧体的方法

    公开(公告)号:US06296791B1

    公开(公告)日:2001-10-02

    申请号:US09541985

    申请日:2000-04-03

    IPC分类号: C04B3538

    CPC分类号: C04B35/265 C04B35/2658

    摘要: A process for producing Mn—Zn ferrite is disclosed, which enables regeneration and reuse of scraps of a sintered product. The process comprises reusing a powder obtained by milling the sintered product of Mn—Zn ferrite, subjecting the powder to a component adjustment so as to have a composition of 44.0 to 50.0 mol % of Fe2O3, 4.0 to 26.5 mol % of ZnO, 0.1 to 8.0 mol % of at least one member selected from the group consisting of TiO2 and SnO2, and the remainder being MnO, and optionally 0.1 to 16.0 mol % of CuO, pressing the resulting mixed powder after the component adjustment, and then sintered a green compact.

    摘要翻译: 公开了一种生产Mn-Zn铁氧体的方法,其可以使烧结产品的废料再生和再利用。 该方法包括重新使用通过研磨Mn-Zn铁氧体的烧结体得到的粉末,使粉末成分调整成组成为Fe2O3为44.0〜50.0摩尔%,ZnO为4.0〜26.5摩尔%,0.1〜 8.0mol%的选自TiO 2和SnO 2中的至少一种,剩余部分为MnO,以及任选的0.1至16.0mol%的CuO,在组分调节之后压制所得到的混合粉末,然后烧结生坯 。

    Process for producing Mn-Zn ferrite
    20.
    发明授权
    Process for producing Mn-Zn ferrite 失效
    生产Mn-Zn铁氧体的方法

    公开(公告)号:US06403017B1

    公开(公告)日:2002-06-11

    申请号:US09442389

    申请日:1999-11-18

    IPC分类号: C04B3538

    摘要: A process for producing Mn—Zn ferrite having large electrical resistance and being durable to the use in high frequency region exceeding 1 MHz easily and at low cost is disclosed. The process comprises pressing a mixed powder comprising a composition of 44.0 to 50.0 mol % of Fe2O3, 4.0 to 26.5 mol % of ZnO, 0.1 to 8.0 mol % of at least one member selected from the group consisting of TiO2 and SnO2, and the remainder being MnO, and if desired 0.1 to 16.0 mol % of CuO, sintering the resulting green compact in the air or an atmosphere containing an appropriate amount of oxygen, and then cooling the green compact, thereby securing the estimated high initial permeability even in a high frequency region of 1 MHz or more.

    摘要翻译: 公开了一种用于制造具有大电阻并且耐用于在容易且低成本地超过1MHz的高频区域中的Mn-Zn铁氧体的方法。 该方法包括将包含Fe2O3为44.0〜50.0摩尔%,ZnO为4.0〜26.5摩尔%,0.1〜8.0摩尔%的选自TiO 2和SnO 2中的至少一种的组成的混合粉末,其余为 为MnO,如果需要,为0.1〜16.0mol%的CuO,在空气或含有适量氧气的气氛中烧结得到的生坯,然后冷却生坯,从而确定了估计的高初始渗透率即使在高 频率区域为1MHz以上。