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    Magnetic ferrit material
    1.
    发明公开
    Magnetic ferrit material 审中-公开
    磁铁铁氧体材料

    公开(公告)号：EP1083158A3

    公开(公告)日：2001-10-10

    申请号：EP00116227.0

    申请日：2000-08-04

    Applicant: TDK Corporation

    Inventor： Saita, Hitoshi ,  Sato, Naoyoshi ,  Tada, Emiko ,  Takagawa, Kenya ,  Yasuhara, Katsushi ,  Kuroda, Tomofumi ,  Ishida, Shigetoshi

    IPC: C04B35/26 ,  H01F1/34

    CPC classification number: C04B35/2658 ,  H01F1/344

    Abstract: There is disclosed a magnetic ferrite material which mainly contains zinc oxide in a range of 7.0 to 9.0 mol% in terms of ZnO, manganese oxide in a range of 36.8 to 39.2 mol% in terms of MnO, and a residual of iron oxide, and contains cobalt oxide as a sub component in a range of 2500 to 4500 ppm in terms of Co 3 O 4 , and in which a minimum value of a power loss in a temperature range of 20 to 100°C is 400 kW/m 3 or less, and a difference between the maximum value and minimum value of the power loss in the temperature range of 20 to 100°C is 150 kW/m 3 or less.

    Abstract translation: 公开了以ZnO为主要含有7.0〜9.0摩尔％范围的氧化锌，MnO换算为氧化锰，氧化锰为36.8〜39.2摩尔％，氧化铁的残留量的磁性铁氧体材料，以及 在Co 3 O 4中含有作为副成分的氧化钴为2500〜4500ppm的范围，在20〜100℃的温度范围内的功率损失的最小值为400kW / m 3以下 在20〜100℃的温度范围内的功率损失的最大值和最小值之差为150kW / m 3以下。

    Magnetic ferrit material
    2.
    发明公开
    Magnetic ferrit material 审中-公开
    磁性铁素体材料

    公开(公告)号：EP1083158A2

    公开(公告)日：2001-03-14

    申请号：EP00116227.0

    申请日：2000-08-04

    Applicant: TDK Corporation

    Inventor： Saita, Hitoshi ,  Sato, Naoyoshi ,  Tada, Emiko ,  Takagawa, Kenya ,  Yasuhara, Katsushi ,  Kuroda, Tomofumi ,  Ishida, Shigetoshi

    IPC: C04B35/26 ,  H01F1/34

    CPC classification number: C04B35/2658 ,  H01F1/344

    Abstract: There is disclosed a magnetic ferrite material which mainly contains zinc oxide in a range of 7.0 to 9.0 mol% in terms of ZnO, manganese oxide in a range of 36.8 to 39.2 mol% in terms of MnO, and a residual of iron oxide, and contains cobalt oxide as a sub component in a range of 2500 to 4500 ppm in terms of Co 3 O 4 , and in which a minimum value of a power loss in a temperature range of 20 to 100°C is 400 kW/m 3 or less, and a difference between the maximum value and minimum value of the power loss in the temperature range of 20 to 100°C is 150 kW/m 3 or less.

    Abstract translation: 公开了一种磁性铁氧体材料，其主要含有以ZnO换算为7.0〜9.0摩尔％的氧化锌，以MnO换算为36.8〜39.2摩尔％的氧化锰和氧化铁的残留， 含有以Co 3 O 4换算为2500〜4500ppm范围内的副成分的钴氧化物，并且在20〜100℃的温度范围内的功率损失的最小值为400kW / m 3以下， 在20至100℃的温度范围内的功率损失的最大值与最小值之间的差为150kW / m 3以下。

    Mn-Zn ferrite, transformer magnetic core and transformer
    5.
    发明公开
    Mn-Zn ferrite, transformer magnetic core and transformer 审中-公开
    Mn-Zn-Ferrit，MagnetkernfürTransformator und Transformator

    公开(公告)号：EP1394116A1

    公开(公告)日：2004-03-03

    申请号：EP03019542.4

    申请日：2003-09-01

    Applicant: TDK Corporation

    Inventor： Sezai, Yuji ,  Yasuhara, Katsushi ,  Takagawa, Kenya ,  Watanabe, Masahiko

    IPC: C01G49/00 ,  H01F1/34 ,  H01F27/255

    CPC classification number: C04B35/2658 ,  C01G49/0063 ,  C01G49/0072 ,  C01P2006/42 ,  C04B2235/3208 ,  C04B2235/3239 ,  C04B2235/3244 ,  C04B2235/3251 ,  C04B2235/3263 ,  C04B2235/3277 ,  C04B2235/3284 ,  C04B2235/3418 ,  C04B2235/5436 ,  C04B2235/656 ,  C04B2235/658 ,  C04B2235/6584 ,  C04B2235/72 ,  C04B2235/727 ,  H01F1/344 ,  H01F27/255

    Abstract: An Mn-Zn ferrite wherein 0 to 5000 ppm of a Co oxide in a Co 3 O 4 conversion is contained in a basic component constituted by Fe 2 O 3 : 51.5 to 57.0 mol% and ZnO: 0 to 15 mol% (note that 0 is not included) wherein the rest is substantially constituted by MnO; and a value α in a formula (1) below in said ferrite satisfies α≥0.93. α= ((Fe 2+ - Mn 3+ - Co 3+ ) × (4.29 × A + 1.91 × B + 2.19 × C + 2.01 × D)) / ((A - B - C - D) × 100) ... formula (1). Note that in the formula (1), (Fe 2+ - Mn 3+ - Co 3+ ):[wt%], A: Fe 2 O 3 [mol%], B: MnO [mol%], C: ZnO [mol%] and D: CoO [mol%]. According to the present invention, a highly reliable Mn-Zn ferrite used as a magnetic core of a power supply transformer, etc. of a switching power supply, etc., having a small core loss in a wide temperature range, furthermore, exhibiting a little deterioration of core loss characteristics under a high temperature (in a high temperature storage test) and having excellent magnetic stability, a transformer magnetic core and a transformer can be provided.

    Abstract translation: 由Fe 2 O 3：51.5〜57.0摩尔％和ZnO：0〜15摩尔％构成的碱性成分中含有0〜5000ppm的Co 3 O 4转换中的Co氧化物的Mn-Zn铁氧体（注意，不包括0），其中 其余部分基本上由MnO构成; 并且所述铁素体中的下式（1）中的α值满足α≥0.93。 α=（（Fe 2+ -Mn 3+→Co 3+））x（4.29×A + 1.91×B + 2.19×C + 2.01×D））/（（A-B-C- D）×100）...式（1）。 注意，在式（1）中，（Fe 2+ - Mn 3+→Co 3+）：Äwt％ÜA：Fe 2 O 3Ämol％ü，B：MnOÄmol％Ü，C：ZnO Ämol％Ü和D：CoOÄmol％Ü。 根据本发明，在宽温度范围内用作开关电源等的电源变压器等的磁芯的磁芯损耗小的高可靠性的Mn-Zn铁氧体，此外， 可以提供在高温（高温储存试验）中具有优异的磁稳定性，变压器磁芯和变压器的铁损损特性的劣化。

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