Preparation method of high stability high frequency wide temperature magnetic core material used for numerical control magnetic core pendulum feeder

A high-stability, magnetic core material technology, applied in the field of preparation of high-stability, high-frequency, wide-temperature magnetic core materials for numerically controlled magnetic core swinging machines, can solve the problem that soft ferrite does not have stable use, and achieve excellent DC superposition characteristics, excellent overall performance, and the effect of high saturation magnetic flux density

Inactive Publication Date: 2015-03-11
SUZHOU BAOMA NUMERICAL CONTROL EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main technical problem to be solved by the present invention is to provide a method for preparing a high-stability, high-frequency, and wide-temperature magnetic core material for a numerically controlled magnetic core swinging machine, which can solve the disadvantage that the existing soft magnetic ferrite does not have stable use under extreme conditions

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Accurately weigh 71.5mol of Fe 2 o 3 , 18.5mol of Mn 3 o 4 , 10mol of ZnO and corresponding mass parts of CaO, LaO, CuO, V 2 o 5 、TiO 2 、Co 2 o 3 , NiO, B 2 o 3 Standby, the composition included in the second component and the percentage of each component in the total mass of the first component are as follows: CaO 0.04%, LaO 0.023%, CuO 0.04%, V 2 o 5 0.08%, TiO 2 0.15%, Co 2 o 3 0.21%, NiO 0.3%, B 2 o 3 0.06%;

[0024] The weighed first component (Fe 2 o 3 , Mn 3 o 4 , ZnO) in a star-shaped ball mill for coarse grinding and mixing, then placed in an electric heating rotary kiln at 850°C for 3 hours, and after leaving the kiln, introduce it into a vibrating ball mill for vibration grinding for 20 minutes, and then add the weighed second group points (CaO, LaO, CuO, V 2 o 5 、TiO 2 、Co 2 o 3 , NiO, B 2 o 3 ) continue to grind and mix to obtain a powder mixture material with an average particle diameter of 1.0 μm, wherein the vibration frequ...

Embodiment 2

[0030] Accurately weigh 70mol of Fe 2 o 3 , 15mol of Mn 3 o 4 , 15mol of ZnO and corresponding mass parts of CaO, LaO, CuO, V 2 o 5 、TiO 2 、Co 2 o 3 , NiO, B 2 o 3 Standby, the components included in the second component and the percentages of each component in the total mass of the first component are as follows: CaO 0.02%, LaO 0.01%, CuO 0.03%, V 2 o 5 0.02%, TiO 2 0.05%, Co 2 o 3 0.2%, NiO 0.1%, B 2 o 3 0.05%;

[0031] The weighed first component (Fe 2 o 3 , Mn 3 o 4 , ZnO) in a star-shaped ball mill for coarse grinding and mixing, then placed in an electric heating rotary kiln at 900°C for pre-calcination for 2 hours, and after leaving the kiln, introduce it into a vibrating ball mill for vibration grinding for 30 minutes, and then add the weighed second group points (CaO, LaO, CuO, V 2 o 5 、TiO 2 、Co 2 o 3 , NiO, B 2 o 3 ) continue to grind and mix to obtain a powder mixture material with an average particle diameter of 0.8 μm, wherein the v...

Embodiment 3

[0037] The difference between embodiment 3 and embodiment 1 lies in the consumption of the first component and the second component, and other contents are exactly the same as embodiment 1.

[0038] The raw material in embodiment 3 is: the Fe of 72.5mol is accurately weighed 2 o 3 , 20mol of Mn 3 o 4 , 7.5mol of ZnO and corresponding mass parts of CaO, LaO, CuO, V 2 o 5 、TiO 2 、Co 2 o 3 , NiO, B 2 o 3 Standby, the ingredients included in the second component and the percentage of each ingredient in the total mass of the first component are as follows: CaO 0.06%, LaO 0.03%, CuO 0.05%, V 2 o 5 0.12%, TiO 2 0.18%, Co 2 o 3 0.22%, NiO 0.4%, B 2 o 3 0.08%.

[0039] Carry out performance test to the sample piece that above-mentioned method prepares, the result is as follows:

[0040] Density 4.97g / cm 3 , the initial permeability is 3730mT, the Curie temperature is 280°C, the saturation flux density at 500KHz, -40°C is 400mT, and the power loss is 85 kw / m 3 , a...

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Abstract

The invention discloses a preparation method of a high stability high frequency wide temperature magnetic core material used for a numerical control magnetic core pendulum feeder, and the method comprises the following steps: weighing materials, pre sintering and crushing, grinding with sand, preparing granulation slurry, spraying for granulation, preparing a blank and sintering. The method is simple in operation and capable of mass production. The prepared Mn-Zn ferrite material has excellent comprehensive performance, and can effectively broaden the application field and the use conditions of electronic products.

Description

[0001] technical field [0002] The invention relates to the technical field of ferrite electronic materials, in particular to a preparation method of a magnetic core material with high stability, high frequency and wide temperature range for a digitally controlled magnetic core swinging machine. Background technique [0003] Soft ferrite is based on Fe 2 o 3 The main component of ferrimagnetic oxides are Mn-Zn, Cu-Zn, Ni-Zn and so on. Among them, Mn-Zn ferrite has large magnetic permeability, low hysteresis loss in medium and high frequency, easy magnetization, Low cost and other advantages, it is widely used in the field of electronic information, and is used to make core materials for various electronic components such as household electronics, communications, vehicle electronics, and electrodeless lamps. [0004] At present, with the development of science and technology and the diversity of working conditions, the application conditions of household electronics, commu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/26C04B35/622
Inventor 邵建军
Owner SUZHOU BAOMA NUMERICAL CONTROL EQUIP
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