摘要:
The present invention provides a production method of a ferrite material comprising as main constituents Fe2O3: 62 to 68 mol %, ZnO: 12 to 20 mol %, and MnO substantially constituting the balance, wherein the method comprises a compacting step for obtaining a compacted body by using a powder containing the main constituents, the powder having a specific surface area falling within a range between 2.5 and 5.0 m2/g and a 90% particle size of 10 μm or less, and a sintering step for sintering the compacted body obtained in the compacting step. Accordingly, the saturation magnetic flux density of the Mn—Zn based ferrite can be improved.
摘要翻译:本发明提供一种铁氧体材料的制造方法,其主要成分为Fe 2 O 3:62〜68摩尔%,ZnO:12〜20摩尔%,MnO基本上构成余量,其中,该方法包括压实工序, 通过使用含有主成分的粉末,所述粉末的比表面积在2.5〜5.0m 2 / g的范围内,90%的粒径为10μm以下,烧结工序, 压实步骤。 因此,能够提高Mn-Zn系铁氧体的饱和磁通密度。
摘要:
A Mn—Zn based ferrite sintered body containing 62 to 68 mol % of Fe2O3 and 12 to 20 mol % of ZnO is made to contain, as main constituents, NiO and/or LiO0.5. Additionally, a Mn—Zn based ferrite sintered body containing 62 to 68 mol % of Fe2O3 and 12 to 23 mol % of ZnO is made to contain, as additives, Si and Ca. This sintered body can achieve such properties that the saturation magnetic flux density at 100° C. is 450 mT or more (magnetic field for measurement: 1194 A/m), the minimum core loss value is 1200 kW/m3 or less (measurement conditions: 100 kHz, 200 mT), the bottom temperature at which the minimum core loss value is exhibited is from 60 to 130° C., and the initial permeability at room temperature is 700 or more.
摘要翻译:制备含有62〜68摩尔%的Fe 2 O 3 3和12〜20摩尔%ZnO的Mn-Zn系铁氧体烧结体作为主要成分, NiO和/或LiO 0.5。 此外,含有62〜68摩尔%的Fe 2 O 3 3和12〜23摩尔%的ZnO的Mn-Zn系铁氧体烧结体作为添加剂 ,Si和Ca. 该烧结体可以实现在100℃下的饱和磁通密度为450mT以上(测定用磁场:1194A / m)的特性,最小铁心损耗值为1200kW / m 3, (测定条件:100kHz,200mT)时,表现出最小铁损值的底部温度为60〜130℃,室温下的初始磁导率为700以上。
摘要:
The present invention provides a production method of a ferrite material comprising as main constituents Fe2O3: 62 to 68 mol %, ZnO: 12 to 20 mol %, and MnO substantially constituting the balance, wherein the method comprises a compacting step for obtaining a compacted body by using a powder containing the main constituents, the powder having a specific surface area falling within a range between 2.5 and 5.0 m2/g and a 90% particle size of 10 μm or less, and a sintering step for sintering the compacted body obtained in the compacting step. Accordingly, the saturation magnetic flux density of the Mn—Zn based ferrite can be improved.
摘要翻译:本发明提供一种铁氧体材料的制造方法,其主要成分为Fe 2 O 3:62〜68摩尔%,ZnO:12〜20摩尔%,MnO 基本上构成天平,其中该方法包括通过使用含有主要成分的粉末获得压实体的压实步骤,所述粉末的比表面积在2.5-5.0μm之间的范围内, / g,90%的粒径为10μm以下,烧结工序用于烧结在压实工序中得到的压实体。 因此,能够提高Mn-Zn系铁氧体的饱和磁通密度。
摘要:
The present invention provides a Mn—Zn ferrite which is low in the loss in the frequency range between a few 10 kHz and a few 100 kHz and high in the saturation magnetic flux density in the vicinity of 100° C. The present invention comprising the steps of compacting a powder having a specific surface area (based on the BET method) of 2.0 to 5.0 m2/g and a 50% particle size of 0.7 to 2.0 μm into a compacted body having a predetermined shape and obtaining a sintered body by sintering the compacted body. It is preferable that a Mn—Zn ferrite comprises, as main constituents, 54 to 57 mol % of Fe2O3, 5 to 10 mol % of ZnO, 4 mol % or less (not inclusive of 0%) of NiO, and the balance substantially being MnO.
摘要:
The present invention provides a Mn—Zn ferrite which is low in the loss in the frequency range between a few 10 kHz and a few 100 kHz and high in the saturation magnetic flux density in the vicinity of 100° C. The present invention comprising the steps of compacting a powder having a specific surface area (based on the BET method) of 2.0 to 5.0 m2/g and a 50% particle size of 0.7 to 2.0 μm into a compacted body having a predetermined shape and obtaining a sintered body by sintering the compacted body. It is preferable that a Mn—Zn ferrite comprises, as main constituents, 54 to 57 mol % of Fe2O3, 5 to 10 mol % of ZnO, 4 mol % or less (not inclusive of 0%) of NiO, and the balance substantially being MnO.
摘要:
The present invention provides a ferrite magnetic material comprising as a main constituent a compound represented by a composition formula, AFe2+aFe3+bO27 (wherein 1.1≦a≦2.4, 12.3≦b≦16.1; and A comprises at least one element selected from Sr, Ba and Pb), and also comprising as additives a Ca constituent in terms of CaCO3 and a Si constituent in terms of SiO2 so as to satisfy the relation CaCO3/SiO2=0.5 to 1.38 (molar ratio). By making the relation CaCO3/SiO2=0.5 to 1.38 (molar ratio) be satisfied, the coercive force (HcJ) and the residual magnetic flux density (Br) can be made to simultaneously attain high levels.
摘要:
There is provided a Mn—Zn based ferrite member excellent in mass productivity, high in withstand voltage, low in loss and excellent in direct current superposition property. The Mn—Zn based ferrite member is provided with a surface layer portion having the properties that ρ5 defined in the specification satisfies the relation that ρ5≧103 Ωm and ρ50 defined in the specification satisfies the relation that ρ50≦102 Ωm. ρ5: (R0−R1)S/L5 (Ωm) ρ50: (R2−R3)S/L50 (Ωm)
摘要:
There is provided a Mn—Zn based ferrite member excellent in mass productivity, high in withstand voltage, low in loss and excellent in direct current superposition property. The Mn—Zn based ferrite member is provided with a surface layer portion having the properties that ρ5 defined in the specification satisfies the relation that ρ5≧103 Ωm and ρ50 defined in the specification satisfies the relation that ρ50≦102 μm. ρ5: (R0−R1)S/L5 (Ωm) ρ50: (R2−R3)S/L50 (μm)
摘要:
A ferrite magnetic material comprising a main phase of W-type is provided which has magnetic properties improved through the optimization of additives. The ferrite magnetic material comprises a main constituent having a compound represented by composition formula AFe2+aFe3+bO27 (wherein A comprises at least one element selected from Sr, Ba and Pb; 1.5≦a≦2.1; and 12.9≦b≦16.3), a first additive containing a Ca constituent (0.3 to 3.0 wt % in terms of CaCO3) and/or a Si constituent (0.2 to 1.4 wt % in terms of SiO2), and a second additive containing at least one of an Al constituent (0.01 to 1.5 wt % in terms of Al2O3), a W constituent (0.01 to 0.6 wt % in terms of WO3), a Ce constituent (0.001 to 0.6 wt % in terms of CeO2), a Mo constituent (0.001 to 0.16 wt % in terms of MoO3), and a Ga constituent (0.001 to 15 wt % in terms of Ga2O3).
摘要翻译:提供了包括W型主相的铁氧体磁性材料,其通过优化添加剂而具有改进的磁性能。 铁氧体磁性材料包括具有由组成式AFe2 + aFe3 + bO27表示的化合物的主要成分(其中A包含选自Sr,Ba和Pb中的至少一种元素; 1.5 <= a <= 2.1;和12.9 <= b < = 16.3),含有Ca成分(按CaCO3计为0.3〜3.0重量%)和/或Si成分(以SiO 2换算为0.2〜1.4重量%)的第一添加剂,以及含有至少一种 Al成分(Al 2 O 3为0.01〜1.5重量%),W成分(WO 3为0.01〜0.6重量%),Ce成分(CeO 2为0.001〜0.6重量%),Mo成分(0.001〜 0.16重量%的MoO 3)和Ga成分(按Ga 2 O 3换算为0.001〜15重量%)。
摘要:
A ferrite magnetic material comprising a main phase of W-type is provided which has magnetic properties improved through the optimization of additives. The ferrite magnetic material comprises a main constituent having a compound represented by composition formula AFe2+aFe3+bO27 (wherein A comprises at least one element selected from Sr, Ba and Pb; 1.5≦a≦2.1; and 12.9≦b≦16.3), a first additive containing a Ca constituent (0.3 to 3.0 wt % in terms of CaCO3) and/or a Si constituent (0.2 to 1.4 wt % in terms of SiO2), and a second additive containing at least one of an Al constituent (0.01 to 1.5 wt % in terms of Al2O3), a W constituent (0.01 to 0.6 wt % in terms of WO3), a Ce constituent (0.001 to 0.6 wt % in terms of CeO2), a Mo constituent (0.001 to 0.16 wt % in terms of MoO3), and a Ga constituent (0.001 to 15 wt % in terms of Ga2O3).
摘要翻译:提供了包括W型主相的铁氧体磁性材料,其通过优化添加剂而具有改进的磁性能。 铁氧体磁性材料包括具有由组成式AFe 2 +和/或Fe 3+组成的化合物的主要成分 (其中A包含选自Sr,Ba和Pb中的至少一种元素; 1.5 <= a <= 2.1;和12.9 <= b <= 16.3),含有Ca 成分(以CaCO 3 3计为0.3〜3.0重量%)和/或Si成分(以SiO 2 2计为0.2〜1.4重量%),第二添加剂 含有Al成分中的至少一种(按Al 2 O 3 3计算为0.01〜1.5重量%),W成分(按WO排列为0.01〜0.6重量% 3成分),Ce成分(按CeO 2计算为0.001〜0.6重量%),Mo成分(按MoO 3计为0.001〜0.16重量% )和Ga成分(按Ga 2 O 3 3换算为0.001〜15重量%)。