CN203415343U - Anticorrosive neodymium iron boron magnet - Google Patents
Anticorrosive neodymium iron boron magnet Download PDFInfo
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- CN203415343U CN203415343U CN201320573301.4U CN201320573301U CN203415343U CN 203415343 U CN203415343 U CN 203415343U CN 201320573301 U CN201320573301 U CN 201320573301U CN 203415343 U CN203415343 U CN 203415343U
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Abstract
The utility model discloses an anticorrosive neodymium iron boron magnet comprising a magnet matrix, wherein the magnet matrix is a neodymium iron boron magnet; the surface of the magnet matrix is sequentially provided with an electroplated coating and an anticorrosive coating from inside to outside; the electroplated coating is a phosphorus electroplated layer and has the thickness of 5-20mum; the anticorrosive coating is any one of a polyurethane anticorrosive coating, an epoxy anticorrosive coating, a chlorinated rubber anticorrosive coating, a chlorosulfonation anticorrosive coating and a high-chlorination anticorrosive coating and has the thickness of 10-20mum. The surface of the neodymium iron boron magnet is provided with the phosphorus electroplated layer, and the surface of the phosphorus electroplated layer is provided with the anticorrosive coating, so that the corrosion resistance of the whole magnet is better; meanwhile, the total thickness of the phosphorus electroplated layer and the anticorrosive coating is controlled within 100mum, the performance of the neodymium iron boron magnet is almost not affected, and the corrosion resistance is also improved while the magnetism of the whole magnet is ensured, so that the magnet disclosed by the utility model can be used in a severe environment.
Description
Technical field
The utility model relates to a kind of magnet, relates in particular to a kind of corrosion-resistant Ne-Fe-B magnet.
Background technology
Existing magnet does not have protective layer outward, usually in a humid environment exposed, and magnet is easy to be corroded, and often occurs rust staining, thereby affects magnet performance.
Utility model content
The purpose of this utility model is to address the above problem, and a kind of corrosion-resistant Ne-Fe-B magnet is provided, its have advantages of simple in structure, be difficult for being corroded, magnet performance is good.
For reaching this object, the utility model by the following technical solutions:
A kind of corrosion-resistant Ne-Fe-B magnet, comprise magnet matrix, described magnet matrix is neodymium iron boron magnetic body, surface at described magnet matrix sets gradually electrodeposited coating, corrosion-resistant finishes from inside to outside, described electrodeposited coating is for electroplating phosphorus layer, the thickness of described electrodeposited coating is 5～20 μ m, described corrosion-resistant finishes is any one in polyurethane anticorrosion coating, epoxy anticorrosive coating, chlorinated rubber corrosion-inhibiting coating, chlorosulfonation corrosion-inhibiting coating, high chlorination corrosion-inhibiting coating, and the thickness of described corrosion-resistant finishes is 10～20 μ m.
As a kind of preferred version of corrosion-resistant Ne-Fe-B magnet, described magnet matrix is Sintered NdFeB magnet.
Magnet matrix adopting sintered neodymium iron boron material is made, made magnet matrix have high magnetic property, there is good machining property, and magnetic property is stable.
As a kind of preferred version of corrosion-resistant Ne-Fe-B magnet, described corrosion-resistant finishes arranges vapour deposition rete away from a side of electrodeposited coating.
As a kind of preferred version of corrosion-resistant Ne-Fe-B magnet, described vapour deposition rete is any one in aluminium film, chromium film, oxidation titanium film, parylene film, Parylene derivatives membrane.
As a kind of preferred version of corrosion-resistant Ne-Fe-B magnet, the thickness of described vapour deposition rete is 5～20 μ m.
The beneficial effects of the utility model are: by the surface at neodymium iron boron magnetic body, arranged and electroplated phosphorus layer, and on plating phosphorus layer surface, corrosion-resistant finishes is set, make the decay resistance of whole magnet better, the gross thickness of electroplating phosphorus layer and corrosion-resistant finishes is controlled in 100 microns simultaneously, the performance of neodymium iron boron magnetic body is influenced hardly, in the magnetic that guarantees whole magnet, also increased decay resistance, thereby magnet of the present utility model be can be used in adverse circumstances.
Accompanying drawing explanation
Fig. 1 is the structural representation of the corrosion-resistant Ne-Fe-B magnet described in the utility model embodiment.
In figure:
1, magnet matrix; 2, electrodeposited coating; 3, corrosion-resistant finishes; 4, vapour deposition rete.
Embodiment
Below in conjunction with accompanying drawing and by embodiment, further illustrate the technical solution of the utility model.
As shown in Figure 1, in the present embodiment, corrosion-resistant Ne-Fe-B magnet described in the utility model, comprises magnet matrix 1, magnet matrix 1 is neodymium iron boron magnetic body, on the surface of magnet matrix 1, sets gradually from inside to outside electrodeposited coating 2, corrosion-resistant finishes 3 and vapour deposition rete 4.
In the present embodiment, magnet matrix 1 is Sintered NdFeB magnet, can make like this magnet matrix 1 have high magnetic property, has good machining property, and magnetic property is stable.
Corrosion-resistant finishes 3 is polyurethane anticorrosion coating, the thickness of corrosion-resistant finishes 3 is 10～20 μ m, certainly, corrosion-resistant finishes 3 is not limited to adopt polyurethane anticorrosion coating, can also adopt any one in epoxy anticorrosive coating, chlorinated rubber corrosion-inhibiting coating, chlorosulfonation corrosion-inhibiting coating, high chlorination corrosion-inhibiting coating.
In the present embodiment, vapour deposition rete 4 is aluminium film, and the thickness of vapour deposition rete 4 is 5～20 μ m, certainly, vapour deposition rete 4 is not limited to adopt aluminium film, can also adopt any one in chromium film, oxidation titanium film, parylene film, Parylene derivatives membrane.
By the surface at neodymium iron boron magnetic body, arrange and electroplate phosphorus layer, and on plating phosphorus layer surface, corrosion-resistant finishes 3 is set, make the decay resistance of whole magnet better, the gross thickness of electroplating phosphorus layer, corrosion-resistant finishes and vapour deposition rete 4 is controlled in 100 microns simultaneously, the performance of neodymium iron boron magnetic body is influenced hardly, in the magnetic that guarantees whole magnet, also increased decay resistance, thereby magnet of the present utility model be can be used in adverse circumstances.
Know-why of the present utility model has below been described in conjunction with specific embodiments.These are described is in order to explain principle of the present utility model, and can not be interpreted as by any way the restriction to the utility model protection range.Explanation based on herein, those skilled in the art does not need to pay performing creative labour can associate other embodiment of the present utility model, within these modes all will fall into protection range of the present utility model.
Claims (5)
1. a corrosion-resistant Ne-Fe-B magnet, it is characterized in that, comprise magnet matrix, described magnet matrix is neodymium iron boron magnetic body, surface at described magnet matrix sets gradually electrodeposited coating, corrosion-resistant finishes from inside to outside, described electrodeposited coating is for electroplating phosphorus layer, the thickness of described electrodeposited coating is 5～20 μ m, described corrosion-resistant finishes is any one in polyurethane anticorrosion coating, epoxy anticorrosive coating, chlorinated rubber corrosion-inhibiting coating, chlorosulfonation corrosion-inhibiting coating, high chlorination corrosion-inhibiting coating, and the thickness of described corrosion-resistant finishes is 10～20 μ m.
2. corrosion-resistant Ne-Fe-B magnet according to claim 1, is characterized in that, described magnet matrix is Sintered NdFeB magnet.
3. corrosion-resistant Ne-Fe-B magnet according to claim 1 and 2, is characterized in that, described corrosion-resistant finishes arranges vapour deposition rete away from a side of electrodeposited coating.
4. corrosion-resistant Ne-Fe-B magnet according to claim 3, is characterized in that, described vapour deposition rete is any one in aluminium film, chromium film, oxidation titanium film, parylene film, Parylene derivatives membrane.
5. corrosion-resistant Ne-Fe-B magnet according to claim 4, is characterized in that, the thickness of described vapour deposition rete is 5～20 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320573301.4U CN203415343U (en) | 2013-09-16 | 2013-09-16 | Anticorrosive neodymium iron boron magnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320573301.4U CN203415343U (en) | 2013-09-16 | 2013-09-16 | Anticorrosive neodymium iron boron magnet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203415343U true CN203415343U (en) | 2014-01-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320573301.4U Expired - Fee Related CN203415343U (en) | 2013-09-16 | 2013-09-16 | Anticorrosive neodymium iron boron magnet |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104795200A (en) * | 2015-05-14 | 2015-07-22 | 海安县巨力磁材有限责任公司 | Corrosion-proof radial-anisotropy magnetic ring |
| 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 |
| CN108053968A (en) * | 2017-12-14 | 2018-05-18 | 天津邦特磁性材料有限公司 | A kind of high energy sintered Nd-Fe-B permanent magnetic material |
| CN109692963A (en) * | 2018-12-18 | 2019-04-30 | 宁波中杭磁材有限公司 | A kind of preparation method of the neodymium iron boron magnetic body of surface with corrosion-resistant finishes |
| CN113410019A (en) * | 2021-06-30 | 2021-09-17 | 安徽恒磁磁电有限公司 | Shock-resistant corrosion-resistant bonded neodymium iron boron magnet and preparation method thereof |
-
2013
- 2013-09-16 CN CN201320573301.4U patent/CN203415343U/en not_active Expired - Fee Related
Cited By (6)
| 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 |
| CN104795200A (en) * | 2015-05-14 | 2015-07-22 | 海安县巨力磁材有限责任公司 | Corrosion-proof radial-anisotropy magnetic ring |
| CN108053968A (en) * | 2017-12-14 | 2018-05-18 | 天津邦特磁性材料有限公司 | A kind of high energy sintered Nd-Fe-B permanent magnetic material |
| CN109692963A (en) * | 2018-12-18 | 2019-04-30 | 宁波中杭磁材有限公司 | A kind of preparation method of the neodymium iron boron magnetic body of surface with corrosion-resistant finishes |
| CN113410019A (en) * | 2021-06-30 | 2021-09-17 | 安徽恒磁磁电有限公司 | Shock-resistant corrosion-resistant bonded neodymium iron boron magnet and preparation method thereof |
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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 |
Granted publication date: 20140129 Termination date: 20140916 |
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| EXPY | Termination of patent right or utility model |