Anti-interference and high-voltage-resistant magnetic core material and preparation method thereof

A magnetic core material and high-voltage-resistant technology, applied in the direction of inductance/transformer/magnet manufacturing, inorganic material magnetism, electrical components, etc., can solve the problems of micro-cracks, cracks, and core preheating, etc., to improve The effects of anti-interference and high voltage resistance and stability, improved voltage resistance, and stable insulation resistance

Pending Publication Date: 2022-02-08
江西瑞吉磁电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Ferrite is widely used in magnetic cores and circuit boards. The ratio of ferrite materials plays a decisive role in the mechanical properties of molded parts. Taking the magnetic core as an example, the magnetic core made of existing materials on the market The withstand voltage can only reach 2000V, so it cannot meet the requirements for use in ultra-high voltage circuits. Secondly, its insulation resistance is generally 50MΩ-100MΩ. This index is very unstable and is extremely dangerous in ultra-high voltage transmission. In addition, i

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0024] Example 1:

[0025] An anti-interference, high pressure resistance core material, including trioxide, zinc oxide, copper oxide, magnesium oxide, nickel oxide, and triioxide.

[0026] A anti-interference, high pressure resistant magnetic core: according to the above weight parts, 66.9 parts of the two iron oxide, 16.8 parts of zinc oxide, 5.8 copper oxide, 5.5 parts of magnesium oxide, 3.5 parts of nickel oxide and three oxide 1.7 parts, mixed with ball mill, resulting in a mixed powder, adding a planetary ball mill, performing grinding, obtained powder, initial burning removing the impurities in the powder, fine milling of the grinding machine, obtaining a particle diameter of not more than 0.01 mm, after spray granulation And press molding, specific steps:

[0027] S1: Weighing powder: Take 66.9 parts of the above weight parts, 16.8 parts of zinc oxide, 5.3 copper oxide, 5.5 parts of magnesium oxide, and nickel oxide, and 1.7 parts, mixed with spherical mills. The mixed po...

Example Embodiment

[0036] Example 2:

[0037] An anti-interference, high pressure resistance core material, including trioxide, zinc oxide, copper oxide, magnesium oxide, nickel oxide, and triioxide.

[0038] An anti-interference, high pressure resistant magnetic core: 166 parts of the above weight parts, 16.5 parts of zinc oxide, 4.5 copper oxide, 5 corrupted copper oxide, 3 parts of nickel oxide and three oxide 1.5 parts, mixed with ball milling, gave a mixed powder, add a planetary ball mill, carrying the abrasive, the powder, the initial burning removal of impurities in the powder, fine milling of the grinding machine, to obtain a particle diameter of not more than 0.01 mm, after spray granulation And press molding, specific steps:

[0039] S1: Tighted powder: According to the above weight parts, 66 pieces of ferric dioxide, 16.5 parts of zinc oxide, 4.5 copper oxide, 5 parts of magnesium oxide, 3 parts of nickel oxide, and mixed with trioxide, mixed with ball mills, The mixed powder is obtained...

Example Embodiment

[0047] Example 3:

[0048] An anti-interference, high pressure resistance core material, including trioxide, zinc oxide, copper oxide, magnesium oxide, nickel oxide, and triioxide.

[0049] An anti-interference, high pressure resistant magnetic core: 48 parts of the above weight parts, 17.5 parts of zinc oxide, 5.5 parts of zinc oxide, 6 copper oxide, 4 parts of nickel oxide and three oxide 2.5 parts, mixed with ball mills, gave a mixed powder, add planetary ball mill, grinding, resulting in powder, initial burning removing the impurities in the powder, fine milling of the grinding machine, to obtain a particle diameter of not more than 0.01 mm, after spray granulation And press molding, specific steps:

[0050] S1: Weigh powder: according to the above weight parts, 68 pieces of ferric dioxide, 17.5 parts of zinc oxide, 5.5 copper oxide, 6 copper oxide, 4 parts of nickel oxide and 2.5 parts of three oxide, mixed with ball mills. The mixed powder is obtained, and the purity of the f...

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PUM

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Abstract

The invention relates to an anti-interference and high-voltage-resistant magnetic core material, which comprises the following raw materials in parts by weight: 66-68 parts of ferric oxide, 16.5-17.5 parts of zinc oxide, 4.5-5.5 parts of copper oxide, 5-6 parts of magnesium oxide, 3-4 parts of nickel oxide and 1.5-2.5 parts of manganous-manganic oxide. When in use, the high-voltage-resistant capacity of the magnetic core prepared by the materials mentioned above is improved by more than 50%, the insulation resistance is stably higher than 100 M[omega], the weldable temperature (soldering) is improved by 15%, and the anti-interference and high-voltage-resistant characteristics and stability of the magnetic core can be effectively improved by adopting the proportion of the components in the scheme.

Description

technical field [0001] The invention relates to the technical field of oxidized magnetic materials, in particular to an anti-interference and high-voltage-resistant magnetic core material and a preparation method thereof. Background technique [0002] Ferrite is widely used in magnetic cores and circuit boards. The ratio of ferrite materials plays a decisive role in the mechanical properties of molded parts. Taking the magnetic core as an example, the magnetic core made of existing materials on the market The withstand voltage can only reach 2000V, so it cannot meet the requirements for use in ultra-high voltage circuits. Secondly, its insulation resistance is generally 50MΩ-100MΩ. This index is very unstable and is extremely dangerous in ultra-high voltage transmission. In addition, its The soldering tin temperature is only plus or minus 10% of 410°C, and after the magnetic core is soldered at high temperature, since the magnetic core is a poor conductor of heat, it is pron...

Claims

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Application Information

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IPC IPC(8): C04B35/26C04B35/622H01F1/01H01F41/02
CPCC04B35/2625C04B35/265C04B35/622H01F1/01H01F41/02C04B2235/3206C04B2235/3284C04B2235/3281C04B2235/3279C04B2235/3263
Inventor 卢春如
Owner 江西瑞吉磁电子科技有限公司
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