Preparation process of magnetic part

Abstract

The invention relates to the technical field of magnetic parts, and discloses a preparation process of a magnetic part, which comprises the following steps: profiling a first powder material to form a first profiling part, carrying out high-temperature sintering on the first profiling part for 0-40 minutes, carrying out sintering molding to form a first magnetic part, and processing and cutting the obtained magnetic part to obtain the magnetic part. A single magnetic piece is cut into a plurality of different magnetic pieces, the surfaces of the cut magnetic pieces are ground through grinding equipment, then the iron connecting support is taken out, and the different magnetic pieces are directly clamped and installed on the inner wall of the iron connecting support. The manufacturing method solves the problems that in the manufacturing process of an existing magnetic part, the whole magnetic part is directly manufactured in the whole position, the number of used magnet materials of the whole magnetic part is large, the original using cost of the magnetic part is increased, and the existing magnetic part manufacturing technology has certain limitation.

Description

Technical Field

[0001] The present invention relates to the technical field of magnetic components, and specifically to a preparation process for magnetic components. Background Art

[0002] Magnetic components usually consist of windings and magnetic cores. They are essential power electronic devices for energy storage, energy conversion, and electrical isolation, mainly including two categories: transformers and inductors. In almost all power supply circuits, magnetic components are indispensable. Magnetic components are one of the most important components of power electronics technology. A powerful magnet refers to a neodymium iron boron magnet. Compared with ferrite magnets, alnico, and samarium cobalt, its magnetic properties far exceed those of the other several magnets. The neodymium iron boron magnet can adsorb a weight 640 times its own weight. Therefore, neodymium iron boron is often called a powerful magnet by people outside the industry. Thus, a preparation process for magnetic components is required.

[0003] During the production process of existing magnetic components, the entire position of the magnetic component is directly fabricated. This will result in a large amount of magnet material being used, increasing the original usage cost of the magnetic component, and there are certain limitations in the existing preparation process for magnetic components. Summary of the Invention

[0004] The purpose of the present invention is to provide a preparation process for magnetic components to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A preparation process for magnetic components, including the following steps:

[0006] S1. Press the first powder material to form a first pressed part, and heat the first pressed part at a high temperature for 0 - 30 minutes. After sintering and forming, a first magnetic component is formed.

[0007] S2. Process and cut the obtained magnetic component to cut a single magnetic component into multiple different magnetic components.

[0008] S3. Grind the surface of the magnetic component after cutting through a grinding device.

[0009] S4. Then take out the connecting bracket made of iron material, and directly snap - fit and install different magnetic components on the inner wall of the iron connecting bracket.

[0010] S5. Use an electroplating device to electroplate the magnetic body after grinding by the grinding device, and a magnetizing device magnetizes the magnetic body after electroplating by the electroplating device to form a magnet.

[0011] Preferably, the first powder material in S1 is neodymium iron boron powder material.

[0012] Preferably, the pressing mold of S1 is circular. After the first powder material is pressed, the first divided material presents a circular state.

[0013] Preferably, in S2, a device that cuts the magnetic part into a sector shape is used for cutting the magnetic part, and the sizes of different sectors are the same.

[0014] Preferably, the particle size of the first powder material is 0.08 μm - 23 μm.

[0015] Preferably, after the first pressing part in S1 is processed at high temperature, it is soaked in a coolant to quickly cool down the magnetic part.

[0016] Preferably, in S3, a grinding device is used to grind the edges and corners of the magnetic part to remove the burrs at the edges and corners.

[0017] Preferably, after the magnetic part is energized, the magnet can be adsorbed on the connecting bracket of the attachment material to stably connect the positions of multiple magnets.

[0018] The present invention provides a preparation process for magnetic parts. It has the following beneficial effects:

[0019] (1) In the present invention, first, the unmagnetized magnetic block is connected to the connecting frame of the attachment material. After the magnetic block is connected to the connecting frame of the attachment material, the magnetic block is energized, so that the inner wall of the side plate will fit with the side walls of the magnet block and the connecting bracket, realizing the splicing and installation of the magnetic block, reducing the number of magnets required, saving the original usage cost of the magnetic block, achieving high production efficiency and high qualified rate, and solving the problem that in the existing process of manufacturing magnetic parts, the whole magnetic part is directly manufactured, resulting in more use of magnet materials, increasing the original usage cost of the magnetic part, and there are certain limitations in the existing preparation process of magnetic parts.

[0020] (2) In the present invention, a circular magnetic part is cut by a cutting device, so that different magnetic parts are in a sector state, which is convenient for operators to splice and install the sector magnetic parts better, and improves the connection relationship between the magnetic parts, facilitating the operators to use the device better.

[0021] (3) In the present invention, a grinding device is used to process the burrs on the side wall of the magnetic part. When the side wall of the magnetic part is cut, there will be many sharp burrs. If the burrs are not processed, it may pose a danger to the operator's hands. Therefore, using a grinding device can improve the safety performance of the operator when splicing the magnetic parts, facilitating the operator to use the device better. Detailed implementation mode

[0022] Next, in combination with the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Embodiment 1: A preparation process for magnetic parts, including the following steps:

[0024] S1. Press the first powder material to form a first pressed part, and subject the first pressed part to high-temperature firing for 10 minutes to promote the preliminary forming of the magnetic part, thereby forming the first magnetic part;

[0025] S2. Process and cut the obtained magnetic part, and cut a single magnetic part into multiple different magnetic parts;

[0026] S3. Grind the surface of the magnetic part after cutting through a grinding device;

[0027] S4. Subsequently, take out the connecting bracket made of iron material, and directly snap and install different magnetic parts on the inner wall of the iron connecting bracket;

[0028] S5. Use an electroplating device to electroplate the magnetic body after grinding by the grinding device, and a magnetizing device magnetizes the magnetic body after electroplating by the electroplating device to form a magnet.

[0029] In S1, the first powder material is neodymium iron boron powder material.

[0030] The pressing mold in S1 is circular. After the first powder material is pressed, the first divided material presents a circular state.

[0031] In S2, when cutting the magnetic part, the device that cuts the shape of the magnetic part into a sector shape, and the sizes of different sectors are the same.

[0032] The particle size of the first powder material is 0.08μm - 23μm.

[0033] After the first pressed part in S1 is subjected to high-temperature processing, it is soaked in a coolant to quickly cool down the magnetic part.

[0034] In S3, it is to polish the corners of the magnetic part through a grinding device to eliminate the burrs at the corners.

[0035] After the magnetic part is energized, it enables the magnet to adsorb on the connecting bracket made of iron material, and stably connects the positions of multiple magnets.

[0036] Example 2: A preparation process of a magnetic component, comprising the following steps:

[0037] S1. Compress the first powder material to form a first compressed part, and subject the first compressed part to high-temperature firing for 20 minutes to promote the semi-formation of the magnetic component;

[0038] S2. Process and cut the obtained magnetic component, and cut a single magnetic component into multiple different magnetic components;

[0039] S3. Grind the surface of the magnetic component after cutting through a grinding device;

[0040] S4. Then take out the connecting bracket made of iron material, and directly snap and install different magnetic components on the inner wall of the iron connecting bracket;

[0041] S5. Use an electroplating device to electroplate the magnetic body after grinding by the grinding device, and a magnetizing device magnetizes the magnetic body after electroplating by the electroplating device to form a magnet.

[0042] In S1, the first powder material is a neodymium iron boron powder material.

[0043] The compression mold in S1 is circular. After the first powder material is compressed, the first divided material presents a circular state.

[0044] In S2, when cutting the magnetic component, the device cuts the shape of the magnetic component into a fan shape, and the sizes of different fans are the same.

[0045] The particle size of the first powder material is 0.08μm - 23μm.

[0046] After the first compressed part in S1 is subjected to high-temperature processing, it is soaked in a coolant to quickly cool down the magnetic component.

[0047] In S3, it is to polish the edge positions of the magnetic component through a grinding device to eliminate the burrs at the edges.

[0048] After the magnetic component is energized, it enables the magnet to adsorb on the connecting bracket made of iron material and stably connect the positions of multiple magnets.

[0049] Example 3: A preparation process of a magnetic component, comprising the following steps:

[0050] S1. Compress the first powder material to form a first compressed part, and subject the first compressed part to high-temperature firing for 30 minutes to promote the formation of the magnetic component;

[0051] S2. Process and cut the obtained magnetic component, and cut a single magnetic component into multiple different magnetic components;

[0052] S3. Grind the surface of the magnetic part after cutting with a grinding device;

[0053] S4. Then take out the connecting bracket made of iron, and directly snap - fit and install different magnetic parts on the inner wall of the iron connecting bracket;

[0054] S5. Use electroplating equipment to electroplate the magnetic body after grinding by the grinding equipment, and the magnetizing equipment magnetizes the magnetic body electroplated by the electroplating equipment to form a magnet.

[0055] In the above - mentioned S1, the first powder material is neodymium - iron - boron powder material.

[0056] The pressing mold in the above - mentioned S1 is circular. After the first powder material is pressed, the first divided material presents a circular state.

[0057] In the above - mentioned S2, the device for cutting the magnetic part cuts the shape of the magnetic part into a sector shape, and the sizes of different sectors are the same.

[0058] The particle size of the first powder material is 0.08μm - 23μm.

[0059] In the above - mentioned S1, after the first pressing part is processed at high temperature, it is soaked in a coolant to quickly cool down the magnetic part.

[0060] In the above - mentioned S3, a grinding device is used to grind the corners of the magnetic part to remove the burrs at the corners.

[0061] After the magnetic part is energized, the magnet can be adsorbed on the iron - based connecting bracket to stably connect the positions of multiple magnets.

[0062] Example 4: A preparation process of a magnetic part, including the following steps:

[0063] S1. Press the first powder material to form a first pressing part, and heat the first pressing part at high temperature for 40 minutes to directly form the magnetic part, thus forming the first magnetic part;

[0064] S2. Process and cut the obtained magnetic part to cut a single magnetic part into multiple different magnetic parts;

[0065] S3. Grind the surface of the magnetic part after cutting with a grinding device;

[0066] S4. Then take out the connecting bracket made of iron, and directly snap - fit and install different magnetic parts on the inner wall of the iron connecting bracket;

[0067] S5. Use electroplating equipment to electroplate the magnetic body after grinding by the grinding equipment, and the magnetizing equipment magnetizes the magnetic body electroplated by the electroplating equipment to form a magnet.

[0068] The first powder material in S1 is neodymium iron boron powder material.

[0069] The pressing mold of S1 is circular. After the first powder material is pressed, the first divided material presents a circular state.

[0070] In S2, the magnetic part is cut by a device that cuts the shape of the magnetic part into sectors, and the sizes of different sectors are the same.

[0071] The particle size of the first powder material is 0.08 μm - 23 μm.

[0072] After the first pressing part in S1 is processed at high temperature, it is soaked in a coolant to quickly cool down the magnetic part.

[0073] In S3, a grinding device is used to polish the corners of the magnetic part to remove the burrs at the corners.

[0074] After the magnetic part is energized, the magnet can be adsorbed on the connecting bracket of the attaching material to stably connect the positions of multiple magnets.

[0075] The beneficial effects of the present invention are:

[0076] (1) In the present invention, first, the unmagnetized magnetic block is connected to the connecting frame of the attaching material. After the magnetic block is connected to the connecting frame of the attaching material, the magnetic block is energized, so that the inner wall of the side plate will fit with the side walls of the magnet block and the connecting bracket, realizing the splicing and installation of the magnetic block, reducing the number of magnets required, saving the original use cost of the magnetic block, achieving high production efficiency and high qualified rate, and solving the problem that in the existing production process of magnetic parts, the whole magnetic part is directly produced, resulting in more use of magnet materials, increasing the original use cost of the magnetic part, and there are certain limitations in the existing magnetic part preparation process.

[0077] (2) In the present invention, the circular magnetic part is cut by a cutting device, so that different magnetic parts are in a sector state, which is convenient for operators to better splice and install the sector-shaped magnetic parts, and improves the connection relationship between the magnetic parts, facilitating the operators to better use the device.

[0078] (3) In the present invention, the burrs on the side wall of the magnetic component are processed by a grinding device. When the side wall of the magnetic component is cut, a large number of sharp burrs will appear. If the burrs are not processed, it may pose a danger to the hands of the operator. Therefore, the use of a grinding device can improve the safety performance of the operator when splicing the magnetic components, facilitating the operator to better use the device.

[0079] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0080] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A process for preparing a magnetic component. Features: The following steps are involved: S1. The first powder is pressed to form a first pressed part, and the first pressed part is sintered at a high temperature for 0-40 minutes. After sintering, a first magnetic part is formed; S2. Processing and cutting the obtained magnetic parts, cutting a single magnetic part into a plurality of different magnetic parts; S3. Grinding the surface of the magnetic part after cutting by a grinding device; S4. Then take out the iron connecting bracket, and directly snap-fit ​​different magnetic parts onto the inner wall of the iron connecting bracket; S5. The electroplating device is used to electroplate the magnetic body after the grinding device is ground, and the magnetizing device is used to magnetize the magnetic body after the electroplating device is electroplated to form a magnet.

2. A process for preparing a magnetic component according to claim 1, Features: The first powder in S1 is NdFeB powder.

3. A process for preparing a magnetic component according to claim 1, Features: The pressing mold of S1 is circular, and after the first powder is pressed, the first divided material is circular.

4. A process for preparing a magnetic component according to claim 1, Features: The magnetic piece is cut in S2 to form a sector-shaped magnetic piece, and the sizes of different sectors are the same.

5. A process for preparing a magnetic component according to claim 1, Features: The particle size of the first powder is 0.08 μm-23 μm.

6. A process for preparing a magnetic component according to claim 1, Features: After the first pressed part is processed at high temperature in S1, it is immersed in a coolant to achieve rapid cooling of the magnetic part.

7. A process for preparing a magnetic component according to claim 1, Features: In S3, the corners of the magnetic part are ground by a grinding device to remove the burrs on the corners.

8. A process for preparing a magnetic component according to claim 1, Features: After the magnetic part is charged, the magnet can be adsorbed on the connecting bracket of the adhesive material to stably connect the positions of multiple magnets.