CN217796951U - Coating structure capable of performing roller spraying on surface of nickel, copper and nickel electroplated neodymium magnet - Google Patents
Coating structure capable of performing roller spraying on surface of nickel, copper and nickel electroplated neodymium magnet Download PDFInfo
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- CN217796951U CN217796951U CN202221496427.1U CN202221496427U CN217796951U CN 217796951 U CN217796951 U CN 217796951U CN 202221496427 U CN202221496427 U CN 202221496427U CN 217796951 U CN217796951 U CN 217796951U
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Abstract
The utility model discloses a can be at coating structure of neodymium magnet surface roll coating of electronickelling copper nickel, including the permanent magnet, first cladding material, cover in the surface of permanent magnet, the coarse surface that constitutes by the small arch of multiunit, set up in first cladding material deviates from a side surface of permanent magnet for strengthen the second coating of adhesive force, cover in the surface on coarse surface. The surface of the nickel-electroplated permanent magnet is subjected to rough treatment, then a layer of silane coupling agent is coated on the surface of the rough treated nickel-electroplated permanent magnet, the adhesion force of a subsequent roll-sprayed coating on the surface of the nickel-electroplated permanent magnet is enhanced, and then a high-molecular-weight solid epoxy resin/amino resin system coating is adhered on the surface of the nickel-electroplated permanent magnet in a roll-spraying manner, so that the surface tension of the nickel-electroplated permanent magnet can reach more than 34dyn/cm, and the nickel-electroplated permanent magnet has a long-term high-bonding strength fixing effect and can be stably matched with an external assembly part for use.
Description
Technical Field
The utility model relates to the technical field of magnetic materials, in particular to a coating structure capable of rolling and spraying coating on the surface of neodymium magnet electroplated with nickel, copper and nickel.
Background
Neodymium magnet (Neodymium magnet), also called Neodymium iron boron magnet (NdFeB magnet), is a tetragonal crystal formed by Neodymium, iron, and boron, and is widely used in electronic products such as hard disks, mobile phones, earphones, and battery-powered tools.
Neodymium iron boron permanent magnet material surface plating bright nickel copper nickel, increase neodymium iron boron permanent magnet material's that can be fine corrosion resistance, but at the same time the neodymium iron boron permanent magnet material to plating bright nickel copper nickel carries out the process of assembling use, mostly can adopt the fixed mode of bonding, because the characteristic of electronickelling, its surface tension is very low, in the use with the outside assembly spare, do not have long-term fixed effect, drop from outside accessory very easily, consequently, need one kind and can be used for increasing electronickelling copper nickel surface tension at the coating structure of electronickelling copper nickel's neodymium magnet surface roll spraying material urgently.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems in the prior art, the coating structure for coating the neodymium magnet surface with nickel, copper and nickel electroplating by rolling spraying is provided, and comprises a permanent magnet;
the first plating layer covers the surface of the permanent magnet;
the rough surface is formed by a plurality of groups of micro protrusions and is arranged on the surface of the first plating layer, which is deviated from the permanent magnet;
the second coating is used for enhancing the adhesive force and covers the outer surface of the rough surface;
and the coating layer is arranged on the outer surface of the second coating.
As a further description of the above technical solution: the first plating layer is a nickel-copper-nickel layer.
As a further description of the above technical solution: the rough surface is a micro structure formed on the surface of the first plating layer.
As a further description of the above technical solution: the second coating is made of silane coupling agent.
As a further description of the above technical solution: the material of the coating layer is a curing system of solid epoxy resin and solid amino resin.
As a further description of the above technical solution: the first plating layer is attached to the surface of the permanent magnet by electroplating.
As a further description of the above technical solution: the thickness of the second coating is far smaller than that of the first coating and the thickness of the coating layer.
As a further description of the above technical solution: the thickness range of the first plating layer is 0.01mm-0.03mm.
As a further description of the above technical solution: the thickness range of the coating layer is 0.03-0.07mm.
As a further description of the above technical solution: and the coating layer is coated on the outer surface of the second coating layer through rolling spraying.
The technical scheme has the following advantages or beneficial effects: the surface of the nickel-electroplated permanent magnet is subjected to rough treatment, then a layer of silane coupling agent is coated on the surface of the rough treated permanent magnet, so that the surface tension of the rough treated permanent magnet is improved, the adhesion force of a subsequent coating subjected to roll spraying on the surface of the nickel-electroplated permanent magnet is enhanced, and then a high-molecular-weight solid epoxy resin/amino resin system coating is adhered on the surface of the nickel-electroplated permanent magnet in a roll spraying manner, so that the surface tension of the nickel-electroplated permanent magnet can reach more than 34dyn/cm, and the nickel-electroplated permanent magnet has a long-term high-bonding strength fixing effect and can be stably matched with an external assembly part for use.
Drawings
Embodiments of the present invention will now be described more fully hereinafter with reference to the accompanying drawings. The drawings are only for purposes of illustration and description, and are not intended to limit the scope of the present disclosure.
FIG. 1 is a cross-sectional view of a coating structure of a neodymium magnet capable of being roll-coated with nickel-copper-nickel electroplating coating according to the present invention;
the above reference numerals denote: 1. a permanent magnet; 2. a first plating layer; 3. a rough surface; 4. a second coating layer; 5. and (5) coating the layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is to be understood that the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without any creative effort belong to the protection scope of the present application.
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
The present invention will be further described with reference to the following drawings and specific examples, but the present invention is not limited thereto.
Referring to fig. 1, a first embodiment of the present invention: a coating structure capable of spraying coating on the surface of neodymium magnet electroplated with nickel, copper and nickel comprises a permanent magnet 1;
the first plating layer 2 covers the surface of the permanent magnet 1, and further the first plating layer 2 is a nickel-copper nickel layer;
the rough surface 3 formed by a plurality of groups of micro protrusions is arranged on the surface, deviating from the permanent magnet 1, of the first plating layer 2, furthermore, the rough surface 3 is a micro structure formed on the surface of the first plating layer 2, the rough surface, the second coating 4 and the coating layer 5 are wrapped outside the permanent magnet 1;
the permanent magnet 1 which is plated with nickel, copper and nickel is placed in a vibration disc, then high-mesh carborundum is added into the disc, the mesh range of the carborundum is 200 meshes-500 meshes, after vibration is carried out for 60-200 minutes, a rough surface 3 is formed on the surface of the electroplated nickel, copper and nickel, and the rough surface is formed by a plurality of groups of tiny bulges, so that the tension of the surface of the first plating layer 2 can be improved, and the second coating layer 4 can be attached to the outer surface of the first plating layer.
The second coating 4 is used for enhancing the adhesive force and covers the outer surface of the rough surface 3, and further, the material of the second coating 4 is a silane coupling agent;
after the permanent magnet 1 is cleaned and dried, 0.1-1% alcohol solution prepared by silane coupling agent is added on the surface of the permanent magnet 1 provided with the first coating 2, the surface of the permanent magnet 1 is dried by hot air after the permanent magnet is fully wetted, so that a very thin coupling agent layer is formed on the surface of the permanent magnet 1 electroplated with nickel, copper and nickel, the surface tension is further improved, and the adhesion of the coating of the subsequent roll spraying process to the surface of the electroplated nickel, copper and nickel is enhanced.
And the paint layer 5 is arranged on the outer surface of the second coating 4.
The coating layer 5 is sprayed on the surface of the nickel-copper-nickel electroplated permanent magnet 1 in a rolling spraying mode, and the coating layer 5 is a curing system of high molecular weight solid epoxy resin and solid amino resin, so that the surface tension can reach more than 34dyn/cm after the curing, so that the nickel-copper-nickel electroplated permanent magnet 1 has a good bonding effect, and an external assembly part can be kept fixed with the product for a long time.
Further, the first plating layer 2 is attached to the surface of the permanent magnet 1 by electroplating.
Further, the thickness of the second coating 4 is much smaller than the thickness of the first plating layer 2 and the paint layer 5.
Further, the thickness of the first plating layer 2 ranges from 0.01mm to 0.03mm.
Further, the thickness of the paint layer 5 ranges from 0.03mm to 0.07mm.
The working principle is as follows: when the product is used, the surface of the permanent magnet 1 is covered with a first coating layer in an electroplating way, namely, an electroplated nickel-copper-nickel layer, the surface of the electroplated nickel-copper-nickel layer is polished by a vibrating disc and carborundum to be rough, so that the surface tension of the electroplated nickel-copper-nickel layer is improved, a subsequent second coating layer 4, namely, a silane coupling agent layer, can be better attached, the silane coupling agent is covered on the surface of the permanent magnet 1 and then is dried by hot air, a very thin coupling agent layer molecular film is formed on the surface of the silane coupling agent layer, the surface tension is further improved, the adhesion force of the coating layer of the subsequent roll spraying process to the surface of the electroplated nickel-copper-nickel layer is enhanced, a transparent (or colored) coating layer 5 with high surface tension is roll sprayed on the surface of the electroplated nickel-copper-nickel permanent magnet 1 in a roll spraying way, the coating layer 5 is a system of high-molecular-weight solid epoxy resin and amino resin, the surface tension is not less than 34dyn/cm after the solid epoxy resin is solidified, so that the electroplated nickel-copper-nickel permanent magnet 11 has good fixing effect, and can keep the connection with the exterior assembly parts to be used unstably connected. The above description is only an example of the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and it should be appreciated by those skilled in the art that the equivalent alternatives and obvious modifications can be made by those skilled in the art, and all the modifications and variations can be made within the scope of the present invention.
Claims (9)
1. A coating structure of a coating material capable of being sprayed on the surface of a neodymium magnet electroplated with nickel, copper and nickel is characterized in that: comprising a permanent magnet (1);
the first plating layer (2) covers the surface of the permanent magnet (1);
the rough surface (3) is formed by a plurality of groups of tiny bulges and is arranged on the surface of the first plating layer (2) departing from the permanent magnet (1);
a second coating (4) for enhancing adhesion, covering the outer surface of the rough surface (3);
and the coating layer (5) is arranged on the outer surface of the second coating (4).
2. A roll-coatable coating structure on a nickel, copper and nickel electroplated neodymium magnet surface according to claim 1, wherein: the first plating layer (2) is a nickel-copper-nickel layer.
3. A roll-coatable coating structure on a nickel, copper and nickel electroplated neodymium magnet surface according to claim 1, wherein: the rough surface (3) is a micro structure formed on the surface of the first plating layer (2).
4. A roll-coatable coating structure on a nickel, copper and nickel electroplated neodymium magnet surface according to claim 1, wherein: the material of the second coating (4) is a silane coupling agent.
5. A roll-coatable coating structure on a nickel, copper and nickel electroplated neodymium magnet surface according to claim 1, wherein: the coating layer (5) is made of a curing system of solid epoxy resin and solid amino resin.
6. A coating structure of a roll-coatable paint on a neodymium magnet surface plated with nickel, copper and nickel according to claim 1, wherein: the first plating layer (2) is attached to the surface of the permanent magnet (1) by electroplating.
7. A coating structure of a roll-coatable paint on a neodymium magnet surface plated with nickel, copper and nickel according to claim 1, wherein: the thickness range of the first plating layer (2) is 0.01mm-0.03mm.
8. A coating structure of a roll-coatable paint on a neodymium magnet surface plated with nickel, copper and nickel according to claim 1, wherein: the thickness range of the coating layer (5) is 0.03-0.07mm.
9. A coating structure of a roll-coatable paint on a neodymium magnet surface plated with nickel, copper and nickel according to claim 1, wherein: the coating layer (5) is coated on the outer surface of the second coating layer (4) through rolling spraying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221496427.1U CN217796951U (en) | 2022-06-14 | 2022-06-14 | Coating structure capable of performing roller spraying on surface of nickel, copper and nickel electroplated neodymium magnet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221496427.1U CN217796951U (en) | 2022-06-14 | 2022-06-14 | Coating structure capable of performing roller spraying on surface of nickel, copper and nickel electroplated neodymium magnet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217796951U true CN217796951U (en) | 2022-11-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221496427.1U Active CN217796951U (en) | 2022-06-14 | 2022-06-14 | Coating structure capable of performing roller spraying on surface of nickel, copper and nickel electroplated neodymium magnet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217796951U (en) |
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2022
- 2022-06-14 CN CN202221496427.1U patent/CN217796951U/en active Active
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