High-stability strontium ferrite permanent magnet element

Abstract

The utility model provides a high-stability strontium ferrite permanent magnet element, which comprises a second strontium ferrite permanent magnet element body, a stabilizing layer is arranged in the second strontium ferrite permanent magnet element body, a first coercive force is arranged in a first magnetic performance part, a second magnetic performance part is arranged in a second coercive force part, and a second magnetic performance part is arranged in the second coercive force part. And a corrosion-resistant layer is arranged on the second magnetic property side edge. According to the high-stability strontium ferrite permanent magnet element, the corrosion-resistant layer is made of an aluminum oxide material, so that the aluminum oxide has relatively high thermal stability and chemical stability, and the thermal stability of the material is improved by adding the aluminum oxide into the strontium ferrite permanent magnet element body, so that the aluminum oxide can keep stable chemical properties in a high-temperature environment; the strontium ferrite permanent magnet element body is prevented from generating unfavorable phase change or decomposition, so that the good magnetic performance of the strontium ferrite permanent magnet element body is maintained, the corrosion resistance of the strontium ferrite permanent magnet element body is improved, and the stability of the strontium ferrite permanent magnet element body is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to strontium ferrite technical field, specifically is a kind of high-stability strontium ferrite permanent magnet element. BACKGROUND

[0002] Permanent magnet material, also known as "hard magnetic material", refers to the material that can maintain constant magnetism after magnetization. In practice, permanent magnet material works in deep magnetic saturation and the second quadrant demagnetization part of the magnetic hysteresis loop after magnetization. Commonly used permanent magnet materials include aluminum-nickel-cobalt series permanent magnet alloy, iron-chromium-cobalt series permanent magnet alloy, permanent magnet ferrite, rare earth permanent magnet material and composite permanent magnet material, etc.

[0003] The existing strontium ferrite permanent magnet element has low magnet performance or low magnet stability, and its magnetic performance may still be affected under extreme high temperature environment, resulting in the decrease of magnetic energy product, residual magnetism and coercive force, etc. At the same time, in a strong magnetic field environment, the strontium ferrite permanent magnet element may be disturbed by external magnetic field, resulting in the decrease of magnetic performance or the change of magnetization direction. SUMMARY

[0004] In view of the above defects or deficiencies in the prior art, the present application aims to provide a high-stability strontium ferrite permanent magnet element, which comprises a strontium ferrite two permanent magnet element body, a stabilizing layer is arranged inside the strontium ferrite two permanent magnet element body, a first magnetic property is arranged inside the stabilizing layer, a first coercive force is arranged inside the first magnetic property, a second coercive force is arranged inside the first magnetic property, a second magnetic property is arranged inside the second coercive force, and a corrosion-resistant layer is arranged on the side of the second magnetic property.

[0005] Preferably, the stabilizing layer is mounted on the inner wall of the strontium ferrite two permanent magnet element body, and the stabilizing layer is made of an oxide raw material.

[0006] Preferably, the first magnetic property is mounted on the inner wall of the stabilizing layer, and the first magnetic property is made of a carbonate raw material.

[0007] Preferably, the first coercive force is mounted on the inner wall of the first magnetic property, and the first coercive force is made of calcium carbonate material, and the second coercive force is mounted on the inner wall of the first magnetic property, and the second coercive force is made of a dopant material.

[0008] Preferably, the second magnetic property is mounted on the inner wall of the second coercive force, and the second magnetic property is made of a boric acid material.

[0009] Preferably, the corrosion-resistant layer is mounted on one side of the second magnetic property, and the corrosion-resistant layer is made of an aluminum oxide material. ADVANTAGEOUS EFFECTS

[0010] 1. This highly stable strontium ferrite permanent magnet element, through the setting of a stabilizing layer, a first magnetic property, a first coercivity, and a second coercivity, and through the stabilizing layer being made of oxide raw materials, the oxide raw materials being the main source of magnetic ions, together with strontium oxide, under a specific preparation process, form a strontium ferrite magnetic pole material with excellent magnetic properties. Therefore, the strontium ferrite permanent magnet element body possesses high magnetic and chemical stability, and simultaneously enables the strontium ferrite permanent magnet element body to maintain stable electrical performance at high temperatures. The first magnetic property is made of carbonate raw materials, and by adding an appropriate amount of carbonate raw material, the strontium content can be significantly improved. The magnetic properties of the ferrite permanent magnet component are further enhanced by the first coercivity, which is achieved by using calcium carbonate. Adding an appropriate amount of calcium carbonate can increase the remanence of the strontium ferrite permanent magnet component, thereby achieving a peak intrinsic coercivity within a certain range. The second coercivity is achieved by using dopants. Dopants can adjust the intrinsic magnetic properties of the strontium ferrite permanent magnet component, strengthen its coercivity, and refine the grain size, preventing excessive grain growth and resulting in a more uniform and finer grain structure. The finer grain structure also improves the mechanical strength and corrosion resistance of the strontium ferrite permanent magnet component.

[0011] 2. This highly stable strontium ferrite permanent magnet element incorporates a second magnetic layer and a corrosion-resistant layer. The second magnetic layer is made of boric acid, which resists external magnetic field interference and maintains its magnetization state. Furthermore, boric acid doping alters the microstructure of the strontium ferrite permanent magnet element, particularly the characteristics of grain boundary regions, thereby enhancing the material's coercivity. The corrosion-resistant layer is made of alumina, which possesses high thermal and chemical stability. Adding alumina to the strontium ferrite permanent magnet element improves its thermal stability, ensuring stable chemical properties even at high temperatures. This prevents adverse phase transitions or decomposition of the strontium ferrite permanent magnet element, thus maintaining its excellent magnetic properties. This, in turn, enhances the corrosion resistance and stability of the strontium ferrite permanent magnet element. Attached Figure Description

[0012] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0013] Figure 1 This is a frontal cross-sectional view of the present invention.

[0014] Figure 2 This is a front view structural diagram of the present invention;

[0015] Figure 3 This utility model Figure 1 Enlarged structural diagram at point P.

[0016] In the figure: 1, strontium ferrite permanent magnet element body; 2, stabilizing layer; 3, first magnetic property; 4, first coercivity; 5, second coercivity; 6, second magnetic property; 7, corrosion-resistant layer. DETAILED DESCRIPTION

[0017] The application will be further described below in detail in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the related utility model, and not to limit the utility model. In addition, it should be noted that, in order to facilitate the description, only the parts related to the utility model are shown in the drawings.

[0018] The drawings in the embodiments of the utility model: different kinds of section lines in the figure are not marked according to the national standard, and the material of the element is not required, which is to distinguish the section view of the element in the figure.

[0019] Please refer to Figures 1-3 A high-stability strontium ferrite permanent magnet element, comprising a strontium ferrite two permanent magnet element body 1, a stabilizing layer 2 is arranged in the strontium ferrite two permanent magnet element body 1, a first magnetic property 3 is arranged in the stabilizing layer 2, a first coercivity 4 is arranged in the first magnetic property 3, a second coercivity 5 is arranged in the first magnetic property 3, a second magnetic property 6 is arranged in the second coercivity 5, and a corrosion-resistant layer 7 is arranged on the side of the second magnetic property 6.

[0020] Among them, the stabilizing layer 2 is installed in the inner wall of the strontium ferrite two permanent magnet element body 1, and the stabilizing layer 2 is made of an oxide raw material.

[0021] Among them, the first magnetic property 3 is installed in the inner wall of the stabilizing layer 2, and the first magnetic property 3 is made of a carbonate raw material.

[0022] Among them, the first coercivity 4 is installed in the inner wall of the first magnetic property 3, and the first coercivity 4 is made of calcium carbonate material, the second coercivity 5 is installed in the inner wall of the first magnetic property 3, and the second coercivity 5 is made of a dopant material.

[0023] Among them, the second magnetic property 6 is installed in the inner wall of the second coercivity 5, and the second magnetic property 6 is made of a boric acid material.

[0024] Among them, the corrosion-resistant layer 7 is installed on one side of the second magnetic property 6, and the corrosion-resistant layer 7 is made of an aluminum oxide material.

[0025] In use, by setting the stabilizing layer 2, the first magnetic property 3, the first coercivity 4 and the second coercivity 5, by the stabilizing layer 2 being made of an oxide raw material, the oxide raw material being the main source of magnetic ions, together with strontium oxide, under a specific preparation process, forming a strontium ferrite magnetic pole material with excellent magnetic properties, thus making the strontium ferrite permanent magnet element body 1 have high magnetic and chemical stability, at the same time making the strontium ferrite permanent magnet element body 1 be able to maintain stable electrical properties at high temperatures, by the first magnetic property 3 being made of a carbonate raw material, by adding an appropriate amount of carbonate raw material additive, the magnetic properties of the strontium ferrite permanent magnet element body 1 can be significantly improved, and then by the first coercivity 4 being made of a calcium carbonate material, by adding an appropriate amount of calcium carbonate additive, the remanence of the strontium ferrite permanent magnet element body 1 can be increased, so that the intrinsic coercivity reaches a peak within a certain range, and then by the second coercivity 5 being made of a dopant, by the dopant, the intrinsic magnetic properties of the strontium ferrite permanent magnet element body 1 can be adjusted, and the coercivity of the strontium ferrite permanent magnet element body 1 can be strengthened, at the same time, the dopant can refine the crystal grains, preventing the grains from growing too large, thus obtaining a more uniform and smaller crystal grain structure, and the small crystal grain structure can also improve the mechanical strength and corrosion resistance of the strontium ferrite permanent magnet element body 1, by setting the second magnetic property 6 and the corrosion-resistant layer 7, by the second magnetic property 6 being made of a boric acid material, thus the boric acid material can resist external magnetic field interference and maintain its own magnetization state, at the same time, boric acid doping can change the microstructure of the strontium ferrite permanent magnet element body, especially the characteristics of the grain boundary region, thus enhancing the coercivity of the material, and then by the corrosion-resistant layer 7 being made of an alumina material, thus the alumina has high thermal and chemical stability, and adding it to the strontium ferrite permanent magnet element body 1 can improve the thermal stability of the material, so that in a high temperature environment, the alumina can maintain stable chemical properties, preventing the strontium ferrite permanent magnet element body 1 from undergoing adverse phase changes or decomposition, thus maintaining its good magnetic properties, thereby improving the corrosion resistance of the strontium ferrite permanent magnet element body 1 and improving the stability of the strontium ferrite permanent magnet element body 1.

[0026] It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0027] The above description is only the preferred embodiments of the present application and the explanation of the applied technical principles. Those skilled in the art should understand that the scope of the utility model disclosed in the present application is not limited to the technical solutions formed by the specific combination of the above technical features, and also covers other technical solutions formed by any combination of the above technical features or equivalent features without departing from the concept of the utility model. For example, the above features can be replaced with technical features disclosed in the present application (but not limited to) with similar functions to form technical solutions.

Claims

1. A high-stability strontium ferrite permanent magnet element comprising a strontium ferrite two permanent magnet element body (1), characterized in that: The strontium ferrite two permanent magnet element body (1) is internally provided with a stabilizing layer (2), the stabilizing layer (2) is internally provided with a first magnetic property (3), the first magnetic property (3) is internally provided with a first coercive force (4), the first magnetic property (3) is internally provided with a second coercive force (5), the second coercive force (5) is internally provided with a second magnetic property (6), and the second magnetic property (6) is provided with a corrosion-resistant layer (7) on the side.

2. A high-stability strontium ferrite permanent magnet element according to claim 1, characterized by: The stabilizing layer (2) is mounted on the inner wall of the strontium ferrite two permanent magnet element body (1), and the stabilizing layer (2) is made of an oxide raw material.

3. The high-stability strontium ferrite permanent magnet element according to claim 1, characterized in that: The first magnetic property (3) is mounted on the inner wall of the stabilizing layer (2), and the first magnetic property (3) is made of a carbonate raw material.

4. The high-stability strontium ferrite permanent magnet element according to claim 1, characterized by: The first coercive force (4) is mounted on the inner wall of the first magnetic property (3), and the first coercive force (4) is made of a calcium carbonate material, and the second coercive force (5) is mounted on the inner wall of the first magnetic property (3), and the second coercive force (5) is made of a dopant material.

5. The high-stability strontium ferrite permanent magnet element according to claim 1, characterized by: The second magnetic property (6) is mounted on the inner wall of the second coercive force (5), and the second magnetic property (6) is made of a boric acid material.

6. The high-stability strontium ferrite permanent magnet element according to claim 1, characterized by: The corrosion-resistant layer (7) is mounted on one side of the second magnetic property (6), and the corrosion-resistant layer (7) is made of an aluminum oxide material.

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