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Nickel-zinc soft magnet ferrite material, inductor product and its producing method

A soft magnetic ferrite and inductor technology, which is applied in the manufacture of inductors/transformers/magnets, the magnetism of inorganic materials, circuits, etc., can solve the problems of large particle size, inconsistency, and incomplete crystallization of materials, and achieve accurate component content , small particle size, high inductance and quality factor

Inactive Publication Date: 2006-03-22
广东风华高新科技集团有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are some defects in this powder making process: the powder making process is carried out in an open grinding system, which easily leads to the loss of a single component during the grinding process, and the uneven mixing between the components in the material leads to the crystallization of the fired material Incomplete and inconsistent, resulting in phenomena such as heterogeneous crystals, which affect the thermal shock resistance and other properties of the inductor, and the electrical properties of the manufactured inductor products are poor in consistency
In addition, it is necessary to improve the manufacturing process of inductors to solve the problems of low electrical performance, poor consistency and reliability of inductor products caused by uneven mixing of material components and large particle size of materials.

Method used

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  • Nickel-zinc soft magnet ferrite material, inductor product and its producing method
  • Nickel-zinc soft magnet ferrite material, inductor product and its producing method

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Embodiment Construction

[0039]We conducted research on nickel-zinc soft ferrite materials using different additive formulations. The formulations of samples 1-14 are shown in Table 1. Samples 1-10 are comparative examples. Samples 11-14 are examples of the present invention. Samples 1-8 had no auxiliary ingredients added. Samples 9 and 10 only added Co 2 o 3 , while samples 11 and 12 added Co 2 o 3 and MnO 2 , Samples 13 and 14 added Co 2 o 3 , MnO 2 and Bi 2 o 3 .

[0040] Samples 1-14 all adopt the following manufacturing method: mix the selected raw materials in the formula amount, fully grind with a rolling ball mill to obtain a red pulp, then dry it, and heat it at 900°C

[0041] Sample No.

Main ingredients (wt%)

Auxiliary ingredients (wt%)

Fe 2 o 3 :

ZnO:

NiO:

CuO

co 2 o 3 ,

MnO 2 ,

Bi 2 o 3 ,

1

65.0

20.0

10.5

4.5

/

/

/

2

65.5

19.5

10.5

4.5

/ ...

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Abstract

This invention discloses a Ni-Zn soft magnetic ferrite material including a master composition: Fe2O3, NiO, CuO and ZnO, a first auxiliary composition: CO2O3 and / or MnO2, there is no oxide added with pb and Ge. This invention also discloses an inductor product with said material and a manufacturing method.

Description

technical field [0001] The present invention relates to a kind of soft magnetic ferrite material, inductor product and its manufacturing method, more specifically, the present invention relates to a kind of nickel-zinc soft magnetic ferrite material, made of this nickel-zinc soft magnetic ferrite material The obtained inductor product, and the manufacturing method of the inductor. Background technique [0002] The composition of nickel-zinc soft magnetic ferrite materials usually includes: as the main material metal oxides, such as Fe 2 o 3 , ZnO, NiO, CuO, etc., and auxiliary components such as PbO, Co 2 o 3 , SiO 2 wait. The prior art is generally by adding PbO, SiO to the Ni-Zn soft ferrite material 2 The glass phase is used to improve the thermal shock resistance, external mechanical impact resistance, frequency characteristics, temperature stability and other properties of the inductance device. These existing Ni-Zn soft magnetic materials usually contain harmful...

Claims

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Application Information

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IPC IPC(8): H01F1/34H01F41/00C04B35/26C22C38/00
Inventor 李刘清王国华胡满明王灿飞陈武气韦建军
Owner 广东风华高新科技集团有限公司
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