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Strontium ferrite magnetic powder additive

A strontium ferrite magnetic powder and additive technology, applied in the field of strontium ferrite magnetic powder additives, can solve the problems of single effect and high temperature, reduce porosity, improve grain size refinement, increase intrinsic coercive force and The effect of residual magnetism

Inactive Publication Date: 2017-05-24
马鞍山起劲磁塑科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the processing and preparation of ferrite, some additives are usually added to improve the overall characteristics of the ferrite produced. Now more carbon dioxide is added, but the effect is relatively single, and the improvement of the overall performance is limited, and it is still not enough. Meet people's needs, in addition, the temperature required for processing is still high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A strontium ferrite magnetic powder additive is made of the following substances by weight:

[0017] 44 parts of diamine trioxide, 12 parts of calcium chloride, 6 parts of vanadium pentoxide, 3 parts of magnesium oxide, 4 parts of sodium silicate, and 5 parts of barium carbonate.

[0018] A preparation method of a strontium ferrite magnetic powder additive, comprising the steps of:

[0019] (1) Firstly, mix Dioctium trioxide, Calcium chloride, Vanadium pentoxide, Magnesium oxide, Sodium silicate and Barium carbonate together, stir well to get mixture A for later use;

[0020] (2) First take 83% of the total mass of mixture A, place it in a nitrogen environment, and continuously ball mill it until the particle size is 10-20 μm to obtain mixture B for later use, then place the remaining mass of mixture A in a nitrogen environment, and continuously Ball milling until the particle size is 200-300nm to obtain mixture C for later use;

[0021] (3) Mix the mixture B obtained...

Embodiment 2

[0023] A strontium ferrite magnetic powder additive is made of the following substances by weight:

[0024] 47 parts of diamine trioxide, 14 parts of calcium chloride, 8 parts of vanadium pentoxide, 5 parts of magnesium oxide, 6 parts of sodium silicate, and 7 parts of barium carbonate. All the other method steps are the same as in Example 1.

Embodiment 3

[0026] A strontium ferrite magnetic powder additive is made of the following substances by weight:

[0027] 50 parts of diamine trioxide, 16 parts of calcium chloride, 10 parts of vanadium pentoxide, 6 parts of magnesium oxide, 7 parts of sodium silicate, and 8 parts of barium carbonate. All the other method steps are the same as in Example 1.

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PUM

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Abstract

The invention discloses a strontium ferrite magnetic powder additive and belongs to the technical field of magnetic material processing. The strontium ferrite magnetic powder additive is prepared from the following specific substances: bismuth trioxide, calcium chloride, vanadic oxide, magnesium oxide, sodium silicate, and barium carbonate. The prepared additive is capable of effectively improving the overall characteristic of the strontium ferrite magnetic powder, enhancing the intrinsic coercive force and magnetic remanence intensity thereof, reducing the processing temperature by about 200 DEG C and favorably saving the manufacturing cost, and is relatively high in popularization and use values.

Description

technical field [0001] The invention belongs to the technical field of magnetic material processing, and in particular relates to a strontium ferrite magnetic powder additive. Background technique [0002] Magnetic materials, commonly referred to as magnetic materials refer to strong magnetic substances, which are ancient and widely used functional materials, and the magnetism of substances has been recognized and applied by people as early as 3,000 years ago. For example, natural magnets were used as compass in ancient China . Modern magnetic materials have been widely used in our lives, such as using permanent magnet materials as motors, core materials used in transformers, magneto-optical disks used as memories, magnetic recording floppy disks for computers, etc. Ferrite permanent magnet material is a kind of permanent magnet material, it is based on BaFe 12 o 19 Phase, SrFe 12 o 19 Phases and their solid solution-based permanent magnet materials. Its appearance not...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/26
CPCC04B35/2683C04B2235/3206C04B2235/3215C04B2235/3239C04B2235/3298C04B2235/3427C04B2235/444
Inventor 周国胜
Owner 马鞍山起劲磁塑科技有限公司
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