CN202816528U - Epoxy coating sintered neodymium-iron-boron magnet - Google Patents
Epoxy coating sintered neodymium-iron-boron magnet Download PDFInfo
- Publication number
- CN202816528U CN202816528U CN 201220486049 CN201220486049U CN202816528U CN 202816528 U CN202816528 U CN 202816528U CN 201220486049 CN201220486049 CN 201220486049 CN 201220486049 U CN201220486049 U CN 201220486049U CN 202816528 U CN202816528 U CN 202816528U
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- Prior art keywords
- epoxy coating
- magnet
- iron
- sintered neodymium
- boron
- Prior art date
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Abstract
An epoxy coating sintered neodymium-iron-boron magnet comprises a magnet matrix made of sintered neodymium-iron-boron magnetic materials. A copper coating film is coated outside the magnet matrix, and a protective layer is coated outside the copper coating film and is an epoxy coating. The epoxy coating sintered neodymium-iron-boron magnet has the advantages that due to the fact that the magnet matrix is made of the sintered neodymium-iron-boron magnetic materials, magnet performance is extremely high, machining performance is quite good, and the magnet performance is stable. The copper coating film and the epoxy coating are coated outside the magnet matrix in sequence, the copper coating film is smooth and flat, and therefore the epoxy coating is convenient to coat. Chemical stability of the epoxy coating is good, the epoxy coating which is solidified normally is good in alkali resistance, acid resistance and solvent resistance, and therefore the epoxy coating sintered neodymium-iron-boron magnet can be used in hostile environment. The epoxy coating is strong in adhesive force, and therefore the epoxy coating sintered neodymium-iron-boron magnet is convenient to machine.
Description
Technical field
The utility model relates to a kind of magnet, relates in particular to a kind of epoxy coating Sintered NdFeB magnet.
Background technology
Existing magnet does not have protective layer outward, usually exposes in a humid environment, and magnet is easy to be corroded, and rust staining often occurs, thereby affects magnet performance.
Summary of the invention
Have above-mentioned deficiency in the prior art in order to overcome, the utility model provide a kind of simple in structure, be difficult for being corroded, epoxy coating Sintered NdFeB magnet that performance is good.
The technical scheme in the invention for solving the technical problem is: a kind of epoxy coating Sintered NdFeB magnet; comprise the magnet matrix; described magnet matrix is that sintered Nd-Fe-B magnetic material is made; the outer protection of described magnet matrix has the layer of copper plated film; this plated copper film also is coated with layer protective layer outward, and this protective layer is epoxy coating.
The beneficial effects of the utility model are: because the magnet matrix is that sintered Nd-Fe-B magnetic material is made, especially adopting performance to add the HCJ sum greater than N48 and magnetic energy product makes greater than 60 sintered Nd-Fe-B magnetic material, thereby have high magnetic property, its maximum magnetic energy product exceeds ferrite more than 10 times, the machining property of itself is fairly good, can be processed into the various shapes that the client needs, such as: disk magnet, ring magnet, rectangular magnets, arc magnet and other various special-shaped magnets; And working temperature reaches as high as 200 degrees centigrade, and its quality is hard, and stable performance has good cost performance, can be widely used in motor, instrument and instrument, auto industry, petrochemical industry industry and the magnetic medical and health-care products etc.And outside the magnet matrix, be coated with successively plated copper film and epoxy coating, plated copper film has flatness, thereby be convenient to the coating of epoxy coating, and the chemical stability of epoxy coating is good, usually the epoxy coating after solidifying has good alkali resistance, acid resistance and solvent resistance, thereby so that the utility model can be used in the rugged environment; And epoxy coating has very strong adhesive force, thereby is convenient to process the utility model.
Description of drawings
Fig. 1 is schematic cross-section of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
With reference to Fig. 1; a kind of epoxy coating Sintered NdFeB magnet; comprise magnet matrix 1; described magnet matrix 1 is made for sintered Nd-Fe-B magnetic material; described magnet matrix 1 outer protection has layer of copper plated film 2; also be coated with layer protective layer 3 outside this plated copper film 2, this protective layer 3 is epoxy coating.
Because magnet matrix 1 is made for sintered Nd-Fe-B magnetic material, especially adopting performance to add the HCJ sum greater than N48 and magnetic energy product makes greater than 60 sintered Nd-Fe-B magnetic material, thereby have high magnetic property, its maximum magnetic energy product exceeds ferrite more than 10 times, the machining property of itself is fairly good, can be processed into the various shapes that the client needs, such as: disk magnet, ring magnet, rectangular magnets, arc magnet and other various special-shaped magnets; And working temperature reaches as high as 200 degrees centigrade, and its quality is hard, and stable performance has good cost performance, can be widely used in motor, instrument and instrument, auto industry, petrochemical industry industry and the magnetic medical and health-care products etc.And outside magnet matrix 1, be coated with successively plated copper film 2 and epoxy coating, plated copper film 2 has flatness, thereby be convenient to the coating of epoxy coating, and the chemical stability of epoxy coating is good, usually the epoxy coating after solidifying has good alkali resistance, acid resistance and solvent resistance, thereby so that the utility model can be used in the rugged environment; And epoxy coating has very strong adhesive force, thereby is convenient to process the utility model.
Claims (1)
1. epoxy coating Sintered NdFeB magnet; comprise the magnet matrix, it is characterized in that: described magnet matrix is that sintered Nd-Fe-B magnetic material is made, and the outer protection of described magnet matrix has the layer of copper plated film; this plated copper film also is coated with layer protective layer outward, and this protective layer is epoxy coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220486049 CN202816528U (en) | 2012-09-24 | 2012-09-24 | Epoxy coating sintered neodymium-iron-boron magnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220486049 CN202816528U (en) | 2012-09-24 | 2012-09-24 | Epoxy coating sintered neodymium-iron-boron magnet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202816528U true CN202816528U (en) | 2013-03-20 |
Family
ID=47875373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220486049 Expired - Fee Related CN202816528U (en) | 2012-09-24 | 2012-09-24 | Epoxy coating sintered neodymium-iron-boron magnet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202816528U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9775974B2 (en) | 2015-01-22 | 2017-10-03 | Medtronic Xomed, Inc. | Corrosion-resistant magnetic article |
| US9931493B2 (en) | 2015-01-22 | 2018-04-03 | Medtronic Xomed, Inc. | Corrosion-resistant magnetic article |
-
2012
- 2012-09-24 CN CN 201220486049 patent/CN202816528U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9775974B2 (en) | 2015-01-22 | 2017-10-03 | Medtronic Xomed, Inc. | Corrosion-resistant magnetic article |
| US9931493B2 (en) | 2015-01-22 | 2018-04-03 | Medtronic Xomed, Inc. | Corrosion-resistant magnetic article |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20200924 |