CN112289538A - Corrosion-resistant and wear-resistant magnet and treatment method thereof - Google Patents
Corrosion-resistant and wear-resistant magnet and treatment method thereof Download PDFInfo
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- CN112289538A CN112289538A CN202011522244.8A CN202011522244A CN112289538A CN 112289538 A CN112289538 A CN 112289538A CN 202011522244 A CN202011522244 A CN 202011522244A CN 112289538 A CN112289538 A CN 112289538A
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- corrosion
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/02—Permanent magnets [PM]
- H01F7/0205—Magnetic circuits with PM in general
- H01F7/0221—Mounting means for PM, supporting, coating, encapsulating PM
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F27/00—Details of transformers or inductances, in general
- H01F27/23—Corrosion protection
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
- H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
- H01F41/0253—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets
- H01F41/026—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets protecting methods against environmental influences, e.g. oxygen, by surface treatment
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Manufacturing Cores, Coils, And Magnets (AREA)
- Chemical Treatment Of Metals (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
The invention provides a corrosion-resistant and wear-resistant magnet and a processing method thereof.A phosphating treatment is firstly carried out on the surface of a magnet substrate to form a phosphating layer, a first anticorrosive layer is formed outside the phosphating layer, a second anticorrosive layer is formed outside the first anticorrosive layer, and a third anticorrosive layer is formed outside the second anticorrosive layer; the magnet is provided with the phosphating layer and the three anti-corrosion layers, so that the magnet has stronger corrosion resistance and wear resistance, can meet the complex service environment, and prolongs the service life of electronic equipment.
Description
Technical Field
The invention relates to the technical field of magnets, in particular to a corrosion-resistant and wear-resistant magnet and a treatment method thereof.
Background
Wearable equipment is not only a hardware equipment, more realize powerful function through software support and data interaction, high in the clouds interaction, wearable equipment will bring very big conversion to our life, the perception, in many wearable equipment, all can apply to magnet, for example can apply to magnet in the wireless earphone box of charging and adsorb the earphone fixedly and guarantee the charging effect, and this magnet is for exposing in some applications, therefore the corrosion-resistant and wear resistance of magnet can direct influence electronic equipment's life.
In view of the above, how to provide a magnet with corrosion and wear resistance has become one of the problems to be solved by those skilled in the art.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, an object of the present invention is to provide a corrosion and wear resistant magnet and a method of treating the same, which solve the problem of the prior art that the magnet is easily corroded.
In order to achieve the above objects and other related objects, the present invention provides a corrosion and wear resistant magnet, which comprises a magnet base, a phosphate coating, a first anticorrosive coating, a second anticorrosive coating and a third anticorrosive coating in sequence from inside to outside; the thickness of the phosphate coating is smaller than that of the first anticorrosive coating; the thickness of the first anticorrosive layer is smaller than that of the second anticorrosive layer and that of the third anticorrosive layer.
Optionally, the thickness of the phosphating layer is 0.5 um-1.5 um.
Optionally, the first anticorrosive layer is nickel, and the thickness is 3um ~6 um.
Optionally, the second anticorrosive coating is ultraviolet curing coating, and thickness is 15um ~35 um.
Optionally, the third anticorrosive layer is epoxy paint, and thickness is 15um ~35 um.
The invention also provides a treatment method of the corrosion-resistant and wear-resistant magnet, which comprises the following steps:
s1: forming a phosphate coating on the surface of the magnet substrate;
s2: forming a first anticorrosive layer outside the phosphate coating;
s3: forming a second anticorrosive layer outside the first anticorrosive layer;
s4: and forming a third anticorrosive layer outside the second anticorrosive layer.
Optionally, the surface of the magnet base is subjected to a phosphating treatment using a barrel plating process to form a phosphate coating in step S1.
Alternatively, the first anticorrosive layer is formed using a barrel plating process in step S2.
Optionally, a spray coating process is used to form the second corrosion protection layer in step S3.
Optionally, a third corrosion prevention layer is formed in step S4 using a spray coating process.
As described above, the corrosion-resistant and wear-resistant magnet and the processing method thereof according to the present invention have the following advantageous effects:
the magnet is provided with the phosphate coating and the three anti-corrosion layers, so that the magnet has stronger corrosion resistance and wear resistance, the complex service environment of electronic equipment can be met, and the service life of the electronic equipment is prolonged.
Drawings
Fig. 1 shows a partial cross-sectional view of a corrosion and wear resistant magnet of the present invention.
Fig. 2 is a flow chart showing a method of treating a corrosion and wear resistant magnet according to the present invention.
Description of the element reference numerals
1-a magnet matrix; 2-a phosphate coating; 3-a first corrosion protection layer; 4-a second corrosion protection layer; 5-third corrosion prevention layer; s1 to S4.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention.
Please refer to fig. 1-2. It should be noted that the drawings provided in the present embodiment are only for illustrating the basic idea of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the type, quantity and proportion of the components in actual implementation may be changed freely, and the layout of the components may be more complicated.
Example one
As shown in fig. 1, the embodiment provides a corrosion-resistant and wear-resistant magnet, which sequentially includes a magnet substrate 1, a phosphate coating 2 formed on an outer surface of the magnet substrate 1, a first anticorrosive layer 3 wrapped outside the phosphate coating 2, a second anticorrosive layer 4 wrapped outside the first anticorrosive layer 3, and a third anticorrosive layer 5 wrapped outside the second anticorrosive layer 4 from inside to outside; the thickness of the phosphate coating 2 is less than that of the first anticorrosive coating 3; the thickness of the first anticorrosive layer 3 is smaller than the thickness of the second anticorrosive layer 4 and the third anticorrosive layer 5.
Specifically, the thickness of the phosphate coating 2 is set to 0.5um, 1um, or 1.5um, as an example.
It should be noted that the thickness of the phosphate coating 2 includes, but is not limited to, that listed in this embodiment, and any thickness between 0.5um and 1.5um smaller than the thickness of the first corrosion protection layer 3 is sufficient for the invention.
It should be further noted that the purpose of forming the phosphate coating 2 is mainly to provide protection for the magnet substrate 1, so that a passivation layer is formed on the surface of the magnet, and the metal is prevented from being corroded to a certain extent; the primer is used for priming before painting, and the adhesive force and the corrosion resistance of a paint film layer are improved.
Specifically, the first anticorrosive layer 3 is nickel, and the thickness is set to 3um, 4um, 5um, or 6um, as an example.
It should be noted that, the material of the first anticorrosive coating 3 includes but is not limited to that listed in this embodiment, and any material that can work together with the phosphate coating 2, the first anticorrosive coating 3, the second anticorrosive coating 4 and the third anticorrosive coating 5 so that the magnet has corrosion resistance and wear resistance can meet the invention; the thickness of the first anticorrosive layer 3 includes but is not limited to that listed in the embodiment, and any thickness between 3um and 6um and less than the thickness of the second anticorrosive layer 4 and the third anticorrosive layer 5 satisfies the invention.
Further, the first anticorrosive coating 3 is intended to make the magnet surface denser and improve the corrosion resistance and wear resistance of the magnet.
Specifically, as an example, the second anticorrosive layer 4 is an ultraviolet curable paint, and the thickness is set to 15um, 20um, 25um, 30um or 35 um.
It should be noted that the second anticorrosive coating 4 includes but is not limited to those listed in this embodiment, and any material that can work together with the phosphate coating 2, the first anticorrosive coating 3, the second anticorrosive coating 4 and the third anticorrosive coating 5 so that the magnet has corrosion resistance and wear resistance can meet the requirements of the invention; the thickness of the second anticorrosive layer 4 includes but is not limited to that listed in the embodiment, and any thickness between 15um and 35um and larger than that of the first anticorrosive layer 3 satisfies the invention.
It should be further noted that the ultraviolet light curing coating is subjected to an intense ultraviolet light curing treatment, and the purpose of the second anticorrosive layer 4 is to improve the scratch resistance and the acid and alkali resistance of the magnet.
Specifically, as an example, the third corrosion prevention layer 5 is epoxy paint, and the thickness is set to 15um, 20um, 25um, 30um or 35 um.
It should be noted that, the material of the third anticorrosive coating 5 includes but is not limited to that listed in this embodiment, and any material that can work together with the phosphate coating 2, the first anticorrosive coating 3, the second anticorrosive coating 4 and the third anticorrosive coating 5 makes the magnet have corrosion resistance and wear resistance can meet the requirements of the invention; the thickness of the third anticorrosive layer 5 includes but is not limited to that listed in the embodiment, and any thickness between 15um and 35um and larger than that of the first anticorrosive layer 3 meets the requirement of the invention;
it should be further noted that the epoxy paint is an anticorrosive paint using epoxy resin as a main film forming substance, and aims to improve the performances of corrosion prevention, rust prevention and salt mist resistance of the magnet.
It should also be noted that the specific shape and size of the magnet are not limited, and are determined according to the design and requirements of different practical electronic products.
Example two
As shown in fig. 2, the present embodiment provides a method for processing a corrosion-resistant and wear-resistant magnet, including the steps of:
s1: forming a phosphate coating 2 on the surface of the magnet matrix 1;
s2: forming a first anticorrosive layer 3 outside the phosphate coating 2;
s3: forming a second anticorrosive layer 4 outside the first anticorrosive layer 3;
s4: and a third corrosion prevention layer 5 is formed outside the second corrosion prevention layer 4.
Specifically, the surface of the magnet base 1 is subjected to phosphating treatment using a barrel plating process to form the phosphate coating 2 in step S1.
Specifically, the first anticorrosive layer 3 is formed in step S2 by using a barrel plating process, and the formed first anticorrosive layer 3 is nickel.
Specifically, in step S3, the second anticorrosive layer 4 is formed by a spraying process, and the formed second anticorrosive layer 4 is an ultraviolet curable coating.
Specifically, in step S4, the third corrosion-resistant layer 5 is formed by a spraying process, and the formed third corrosion-resistant layer 5 is epoxy paint.
In summary, the present invention provides a corrosion-resistant and wear-resistant magnet, which sequentially comprises a magnet substrate, a phosphate coating, a first anticorrosive coating, a second anticorrosive coating and a third anticorrosive coating from inside to outside; the invention also provides a corrosion-resistant and wear-resistant treatment method for the magnet, which comprises the following steps: forming a phosphate coating on the surface of the magnet substrate; forming a first anticorrosive layer outside the phosphate coating; forming a second anticorrosive layer outside the first anticorrosive layer; forming a third anticorrosive layer outside the second anticorrosive layer; therefore, the magnet is provided with the phosphate coating and the three anti-corrosion layers, so that the magnet has stronger corrosion resistance and wear resistance, the complex use environment of the electronic equipment can be met, and the service life of the electronic equipment is prolonged. The invention effectively overcomes various defects in the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles of the present invention and its efficacy, and are not to be construed as limiting the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (10)
1. A corrosion-resistant and wear-resistant magnet, characterized in that: the corrosion-resistant and wear-resistant magnet sequentially comprises a magnet base body, a phosphate coating, a first anticorrosive coating, a second anticorrosive coating and a third anticorrosive coating from inside to outside; the thickness of the phosphate coating is smaller than that of the first anticorrosive coating; the thickness of the first anticorrosive layer is smaller than that of the second anticorrosive layer and that of the third anticorrosive layer.
2. A corrosion and wear resistant magnet according to claim 1, wherein: the thickness of the phosphating layer is 0.5 um-1.5 um.
3. A corrosion and wear resistant magnet according to claim 1, wherein: the first anticorrosive coating is nickel, and thickness is 3um ~6 um.
4. A corrosion and wear resistant magnet according to claim 1, wherein: the second anticorrosive coating is ultraviolet cured coating, and thickness is 15um ~35 um.
5. A corrosion and wear resistant magnet according to claim 1, wherein: the third anticorrosive layer is epoxy paint, and thickness is 15um ~35 um.
6. A method for treating a corrosion-resistant and wear-resistant magnet, wherein the corrosion-resistant and wear-resistant magnet is the corrosion-resistant and wear-resistant magnet according to any one of claims 1 to 5, and the method for treating the corrosion-resistant and wear-resistant magnet comprises the steps of:
s1: forming a phosphate coating on the surface of the magnet substrate;
s2: forming a first anticorrosive layer outside the phosphate coating;
s3: forming a second anticorrosive layer outside the first anticorrosive layer;
s4: and forming a third anticorrosive layer outside the second anticorrosive layer.
7. A method of treating a corrosion and wear resistant magnet in accordance with claim 6, wherein: the surface of the magnet base is subjected to phosphating treatment using a barrel plating process to form a phosphate coating in step S1.
8. A method of treating a corrosion and wear resistant magnet in accordance with claim 6, wherein: the first anticorrosive layer is formed using a barrel plating process in step S2.
9. A method of treating a corrosion and wear resistant magnet in accordance with claim 6, wherein: the second anticorrosive layer is formed using a spray process in step S3.
10. A method of treating a corrosion and wear resistant magnet in accordance with claim 6, wherein: a third corrosion prevention layer is formed using a spray coating process in step S4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011522244.8A CN112289538A (en) | 2020-12-22 | 2020-12-22 | Corrosion-resistant and wear-resistant magnet and treatment method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011522244.8A CN112289538A (en) | 2020-12-22 | 2020-12-22 | Corrosion-resistant and wear-resistant magnet and treatment method thereof |
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| CN112289538A true CN112289538A (en) | 2021-01-29 |
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| CN202011522244.8A Pending CN112289538A (en) | 2020-12-22 | 2020-12-22 | Corrosion-resistant and wear-resistant magnet and treatment method thereof |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06176911A (en) * | 1992-12-10 | 1994-06-24 | Sumitomo Special Metals Co Ltd | Anticorrosion permanent magnet and manufacture thereof |
| CN1400722A (en) * | 2001-07-31 | 2003-03-05 | 乔智电子股份有限公司 | Vibratory motor iron core rust-proofing treatment method |
| CN106148955A (en) * | 2015-03-26 | 2016-11-23 | 海安县建业磁材有限公司 | A kind of surfacecti proteon processing method of samarium-cobalt permanent-magnetic material |
| CN108193243A (en) * | 2017-12-27 | 2018-06-22 | 天津深之蓝海洋设备科技有限公司 | Anti-corrosion method, anti-corrosion magnet and the propeller for including this anti-corrosion magnet |
| CN109023271A (en) * | 2017-06-12 | 2018-12-18 | 江苏东瑞磁材科技有限公司 | A kind of protective coating and preparation method thereof of superelevation corrosion-resistant R-Fe-B material |
| CN110534333A (en) * | 2019-09-30 | 2019-12-03 | 安徽省瀚海新材料股份有限公司 | A kind of processing technology of neodymium iron boron magnetic body erosion resistant coating |
| CN110983395A (en) * | 2019-12-17 | 2020-04-10 | 广东小天才科技有限公司 | Magnet, preparation method and wearable device |
| CN212113341U (en) * | 2020-06-03 | 2020-12-08 | 广东桂荣永磁新材料科技有限公司 | Wear-resisting anticorrosive magnet |
-
2020
- 2020-12-22 CN CN202011522244.8A patent/CN112289538A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06176911A (en) * | 1992-12-10 | 1994-06-24 | Sumitomo Special Metals Co Ltd | Anticorrosion permanent magnet and manufacture thereof |
| CN1400722A (en) * | 2001-07-31 | 2003-03-05 | 乔智电子股份有限公司 | Vibratory motor iron core rust-proofing treatment method |
| CN106148955A (en) * | 2015-03-26 | 2016-11-23 | 海安县建业磁材有限公司 | A kind of surfacecti proteon processing method of samarium-cobalt permanent-magnetic material |
| CN109023271A (en) * | 2017-06-12 | 2018-12-18 | 江苏东瑞磁材科技有限公司 | A kind of protective coating and preparation method thereof of superelevation corrosion-resistant R-Fe-B material |
| CN108193243A (en) * | 2017-12-27 | 2018-06-22 | 天津深之蓝海洋设备科技有限公司 | Anti-corrosion method, anti-corrosion magnet and the propeller for including this anti-corrosion magnet |
| CN110534333A (en) * | 2019-09-30 | 2019-12-03 | 安徽省瀚海新材料股份有限公司 | A kind of processing technology of neodymium iron boron magnetic body erosion resistant coating |
| CN110983395A (en) * | 2019-12-17 | 2020-04-10 | 广东小天才科技有限公司 | Magnet, preparation method and wearable device |
| CN212113341U (en) * | 2020-06-03 | 2020-12-08 | 广东桂荣永磁新材料科技有限公司 | Wear-resisting anticorrosive magnet |
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Application publication date: 20210129 |