CN220672850U - Antenna element - Google Patents
Antenna element Download PDFInfo
- Publication number
- CN220672850U CN220672850U CN202321954611.0U CN202321954611U CN220672850U CN 220672850 U CN220672850 U CN 220672850U CN 202321954611 U CN202321954611 U CN 202321954611U CN 220672850 U CN220672850 U CN 220672850U
- Authority
- CN
- China
- Prior art keywords
- coating
- copper
- tin
- antenna element
- copper coating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000011248 coating agent Substances 0.000 claims abstract description 157
- 238000000576 coating method Methods 0.000 claims abstract description 157
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 88
- 229910052802 copper Inorganic materials 0.000 claims abstract description 83
- 239000010949 copper Substances 0.000 claims abstract description 83
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 68
- 239000011159 matrix material Substances 0.000 claims abstract description 15
- 239000010410 layer Substances 0.000 claims description 37
- 239000000758 substrate Substances 0.000 claims description 34
- 238000000034 method Methods 0.000 claims description 28
- 239000007921 spray Substances 0.000 claims description 18
- 238000012360 testing method Methods 0.000 claims description 13
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 9
- 229910000881 Cu alloy Inorganic materials 0.000 claims description 7
- 229910001128 Sn alloy Inorganic materials 0.000 claims description 7
- 238000004512 die casting Methods 0.000 claims description 5
- 239000011247 coating layer Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 19
- 238000004519 manufacturing process Methods 0.000 abstract description 14
- 238000003466 welding Methods 0.000 abstract description 11
- 238000004891 communication Methods 0.000 abstract description 5
- 238000005507 spraying Methods 0.000 description 23
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 14
- 239000007789 gas Substances 0.000 description 12
- 238000010288 cold spraying Methods 0.000 description 9
- 229910052751 metal Inorganic materials 0.000 description 9
- 239000002184 metal Substances 0.000 description 9
- 238000005299 abrasion Methods 0.000 description 7
- 229910052782 aluminium Inorganic materials 0.000 description 7
- 238000005260 corrosion Methods 0.000 description 7
- 230000007797 corrosion Effects 0.000 description 7
- 229910052759 nickel Inorganic materials 0.000 description 7
- 239000000843 powder Substances 0.000 description 5
- 238000000151 deposition Methods 0.000 description 4
- 239000004576 sand Substances 0.000 description 4
- 238000007751 thermal spraying Methods 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 238000001465 metallisation Methods 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009713 electroplating Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000002923 metal particle Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000004626 scanning electron microscopy Methods 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- 229920005556 chlorobutyl Polymers 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 238000007750 plasma spraying Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- MWWATHDPGQKSAR-UHFFFAOYSA-N propyne Chemical compound CC#C MWWATHDPGQKSAR-UHFFFAOYSA-N 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
Landscapes
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
The application discloses an antenna element. The antenna oscillator comprises an oscillator matrix and a welding layer, wherein the welding layer is formed in a local area on the surface of the oscillator matrix, and the welding layer comprises a tin coating and a copper coating arranged between the tin coating and the oscillator matrix. According to the technical scheme, the material cost can be saved, the production cost is reduced, and the service life and the communication performance are improved.
Description
Technical Field
The application relates to the technical field of antenna preparation, in particular to an antenna element.
Background
The antenna element is widely applied to mobile phones, radars and other electronic equipment, and the surface treatment of the antenna element directly influences the service performance and service life of products.
The existing antenna oscillator surface treatment method mainly adopts a ternary electroplating process, wherein a layer of nickel is firstly required to be electroplated on the surface of an oscillator to serve as a bottom layer, and then a nickel coating, a copper layer and a tin layer are respectively electroplated on the whole oscillator surface through two electroplating procedures, so that the requirements of corrosion resistance and welding are met. However, the antenna element has the problems of complex manufacturing process, large pollution and high cost.
Disclosure of Invention
The application provides an antenna element, and aims to solve the problems of complex preparation, large pollution and high cost of the antenna element in the prior art.
To achieve the above object, the present application proposes an antenna element comprising:
a vibrator base;
and the weldable layer is formed in a local area of the surface of the oscillator matrix and comprises a tin coating and a copper coating arranged between the tin coating and the oscillator matrix.
Therefore, the coverage area of the weldable layer on the vibrator base body can be reduced by forming the weldable layer in the local area of the surface of the vibrator base body, so that materials are saved, and the generation cost is reduced; the copper coating can be used for combining the surface of the substrate with the tin coating, so that the combination is firm, and the welding performance is excellent after the tin coating is attached; and the working procedure of nickel material increase is reduced to the antenna element that this application provided, and production technology is simpler, can reduce the shielding to the antenna element after reducing the nickel coating simultaneously, provides better communication performance.
In some embodiments, the copper coating has a thickness in the range of 10-80 μm and the tin coating has a thickness in the range of 10-80 μm.
Therefore, based on the lamination arrangement relation of the copper coating and the tin coating, the thickness of the weldable layer is higher, and the service life of the antenna oscillator is prolonged.
In some embodiments, the bonding strength between the vibrator substrate and the copper coating is not less than 15MPa, and the bonding strength between the copper coating and the tin coating is not less than 20MPa.
Therefore, when the bonding strength between the vibrator substrate and the copper coating is not lower than 15MPa and the bonding strength between the copper coating and the tin coating is not lower than 20MPa, the bonding strength between the vibrator substrate and the copper coating and between the copper coating and the tin coating can be fully ensured, sounding falling off or being stripped between layers is prevented, and the use requirement is met.
In some embodiments, the copper coating is formed on the localized area by a cold spray process, and the tin coating is formed on the copper coating by a thermal spray process or a cold spray process.
In this way, the copper coating is prepared on the oscillator matrix by adopting cold spraying and the tin coating is prepared on the copper coating by adopting cold spraying or hot spraying technology, so that the prepared antenna oscillator has the beneficial effects of low production cost, long service life, good communication performance and the like.
In some embodiments, the solderable layer has a wear rate of 3.3X10 when subjected to a wear resistance standard test under a load of 5 to 50N -6 mm 3 within/(m.N).
Thus, the abrasion resistance standard test is carried out under the load of 5-50N, and the abrasion rate of the weldable layer is 3.3X10 -6 mm 3 When the welding layer is within (m.N), the welding layer can be prevented from being excessively fast in loss, and the service life of the welding layer can be further fully ensured.
In some embodiments, the copper coating comprises a pure copper coating or a copper alloy coating.
Therefore, the copper coating can adopt a copper alloy coating except the pure copper coating, and the selection surface of the coating material is increased based on the fact that the pure copper coating and the copper alloy coating have differences in material performance, price and the like and can be selected based on actual requirements during production.
In some embodiments, the tin coating comprises a pure tin coating or a tin alloy coating.
Therefore, the tin coating can adopt a tin alloy coating except the pure tin coating, and can be selected based on actual requirements in production based on the difference of the pure tin coating and the tin alloy coating in the aspects of material performance, price and the like, so that the selection surface of the coating material is increased.
In some embodiments, the vibrator base body is of a structural design with a round upper part and a square lower part, a connecting rod is arranged between the round upper part and the square lower part, and the local area is arranged on the surface of the connecting rod.
Therefore, based on the structural design that the oscillator base body is round at the upper part and square at the lower part and is connected through the connecting rod, the whole structure of the antenna oscillator can be more stable; a local area for setting up but the welding layer locates on the surface of connecting rod, make full use of antenna element's space, make things convenient for the welding of electric wire.
In some embodiments, the localized areas are pre-treated to form a surface to be attached for enhanced bonding with the copper coating.
Therefore, the surface to be attached is formed in the local area after pretreatment, and when the copper coating is attached to the oscillator matrix, mechanical bonding can be formed between the copper coating and the oscillator matrix, so that the bonding strength between the copper coating and the oscillator matrix is improved, and the bonding stability between the copper coating and the oscillator matrix is ensured.
In some embodiments, the vibrator base comprises an aluminum vibrator base formed by die casting.
In this way, the vibrator base body is formed by die casting, so that the vibrator base body has high precision and high production efficiency; the vibrator base body of the aluminum material is light in weight, easy to process, good in conductivity, corrosion-resistant, low in maintenance cost and capable of improving the combination effect with the weldable layer.
Drawings
Fig. 1 is a schematic structural diagram of an antenna oscillator according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of a vibrator substrate according to an embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present application are merely used to explain the relative positional relationship, movement, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is correspondingly changed.
It will also be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Furthermore, the descriptions of "first," "second," and the like, herein are for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be regarded as not exist and not within the protection scope of the present application.
Referring to fig. 1 and 2, the present application provides an antenna element 100, which includes an element substrate 10 and a solderable layer 20. The solderable layer 20 is formed on a local area 110 of the surface of the vibrator substrate 10, and the solderable layer 20 includes a tin coating 220 and a copper coating 210 disposed between the tin coating 220 and the vibrator substrate 10.
In this embodiment, the local area 110 is understood to be a partial area of the surface of the oscillator matrix 10, instead of the entire surface of the oscillator matrix 10. When the antenna element 100 needs to be provided with the solderable layer 20 on its surface, a partial area thereof may be selected according to practical requirements. Further, the shape, size and number of the partial regions 110 are not limited in the present application, and based on the partial regions 110, a copper coating 210 is formed on the surface of the vibrator substrate 10, and a tin coating 220 is formed on the surface of the copper coating 210, and the copper coating 210 and the tin coating 220 together form the solderable layer 20 on the surface of the vibrator substrate 10.
Alternatively, the antenna element 100 is formed by die casting using aluminum. The aluminum die casting is a conventional production means for preparing the antenna oscillator 100, is suitable for mass production of the antenna oscillator 100, and has high production efficiency and high dimensional accuracy of the produced oscillator matrix 10; meanwhile, the aluminum metal material can meet the use requirement of the antenna element 100.
In this way, by forming the solderable layer 20 in the local area 110 on the surface of the vibrator substrate 10, compared with the traditional ternary plating method, the coverage area of the solderable layer 20 on the vibrator substrate 10 can be reduced, the material is saved, and the generation cost is reduced; wherein, the copper coating 210 can be used for combining the surface of the substrate with the tin coating 220, so that the combination is firm, and the welding performance is excellent after the tin coating 220 is attached; and the antenna element 100 provided by the application reduces the working procedure of nickel material addition, the production process is simpler, and the shielding of the antenna element 100 can be reduced after the nickel coating is reduced, so that better communication performance is provided.
In some embodiments, the thickness of the copper coating 210 is in the range of 10-80 μm and the thickness of the tin coating 220 is in the range of 10-80 μm.
In this embodiment, the thickness of the tin coating 220 may be set according to the thickness of the copper coating 210 according to a certain proportional relationship, and the ratio of the thickness of the copper coating 210 to the thickness of the tin coating 220 is 1:1.5, and when the thickness of the copper coating 210 is 10 μm, the thickness of the tin coating 220 is 15 μm. Thus, based on the lamination arrangement relation of the copper coating 210 and the tin coating 220, the thickness of the solderable layer 20 can be higher, and the service life of the antenna element 100 can be prolonged.
In some embodiments, the bonding strength between the vibrator substrate 10 and the copper coating 210 is not less than 15MPa, and the bonding strength between the copper coating 210 and the tin coating 220 is not less than 20MPa. In this way, the bonding strength between the vibrator substrate 10 and the copper coating 210 and between the copper coating 210 and the tin coating 220 can be fully ensured, the layers are prevented from falling off or being stripped, and the use requirement is met.
In some embodiments, the copper coating 210 is formed on the localized area 110 by a cold spray process, and the tin coating 220 is formed on the copper coating 210 by a thermal spray process or a cold spray process.
The cold spraying is a metal spraying process, and does not need to melt sprayed metal particles, so that the spraying temperature is low. In the spraying process, supersonic gas and solid two-phase gas flow are used for striking metal particles on a substrate to form a compact coating, and the bonding strength of the substrate and the metal coating is high. While thermal spraying is a method of forming a coating layer by heating a spray material to a molten or semi-molten state using a heat source and spray depositing the spray material onto a pretreated substrate surface at a certain speed.
It will be appreciated that the vibrator substrate 10 in the present application may be an aluminum material, and when the copper coating 210 is attached, since the melting point of copper is higher than that of aluminum, in order to ensure that the vibrator substrate 10 is not deformed due to the over-high temperature when the copper coating 210 is attached to the vibrator substrate 10, the copper coating 210 is formed on the vibrator substrate 10 by using a cold spray process. And because the melting point of copper metal is higher than that of tin metal, the tin coating 220 may be formed on the copper coating 210 by a cold spray or a thermal spray process.
In this way, the copper coating 210 is prepared on the vibrator substrate 10 by adopting cold spraying and the tin coating 220 is prepared on the copper coating 210 by adopting cold spraying or hot spraying technology, so that the prepared antenna vibrator 100 has the beneficial effects of low production cost, long service life, good communication performance and the like.
In some embodiments, the solderable layer 20 has a wear rate of 3.3X10 when subjected to a wear resistance standard test under a load of 5 to 50N -6 mm 3 within/(m.N).
In a conventional test, a dry sand/rubber wheel abrasion test is employed, involving abrasion of a standard sample with sand grains of controlled size and composition. An abrasive is introduced between the test specimen and a rotating wheel of a chlorinated butyl rubber tire or rim of a specified hardness. The test sample (antenna element 100) is pressed against the rotating wheel with a specified force by the lever arm while the controlled sand flow wears the test surface. Rotation of the grinding wheel causes the contact surface to move in the direction of the sand flow. The specific scheme of the abrasion resistance standard test is not repeated, and the mass loss is further converted into the volume loss in cubic millimeters.
Thus, the abrasion resistance standard test is carried out under a load of 5 to 50N, and the abrasion of the solderable layer 20The rate is 3.3X10 - 6 mm 3 When within (m.N), the loss of the solderable layer 20 can be prevented from being too fast, and the service life of the solderable layer 20 can be further sufficiently ensured.
In some embodiments, after the preparation of the antenna element 100 is completed, the antenna element 100 may also be placed in a corrosive liquid for corrosion resistance testing. Wherein, can provide corrosion-resistant test box, its memory holds the corrosive solution of 5% NaCl content, submerges antenna element 100 in the corrosive solution for 500 hours, can observe after taking out that can weld layer 20 surface has obvious corrosion mark, and no corrosion mark indicates that corrosion resistance is good.
In some embodiments, SEM analysis may also be performed, with no apparent cracking at the interface, by scanning electron microscopy to observe the mechanical bite between the layers. Wherein, when the solderable layer 20 is uniform and compact, the surface quality and appearance of the solderable layer 20 can be made to meet the ideal requirements.
In some embodiments, copper coating 210 comprises a pure copper coating or a copper alloy coating.
Wherein, to ensure the performance of the copper coating 210, the copper content of the copper coating 210 is in the range of 80% -99.99%, i.e. the copper content of the copper metal powder used in the cold spraying process is in the range of 80% -99.99%. In this way, the copper coating 210 can be a copper alloy coating other than a pure copper coating, and can be selected based on actual requirements during production based on differences in material performance, price and the like between the pure copper coating and the copper alloy coating, so that the selection surface of the coating material is increased.
Alternatively, the copper metal powder has a particle size of 3 to 50 μm. The cold spraying process of forming copper coating 210 on vibrator base body 10 by copper metal powder comprises spraying high-purity copper powder on local area 110 on vibrator base body 10 by high-pressure gas with self-cooling spraying equipment at 200-900 ℃; the distance between the nozzle and the surface is 10-30 mm, and the gas speed is 300-900 m/s; the spraying angle is perpendicular to the surface, and the same track is sprayed for 3 times to obtain a copper coating 210 with a coating thickness of 10-80 μm on the surface of the vibrator substrate 10.
In some embodiments, tin coating 220 comprises a pure tin coating or a tin alloy coating.
Wherein, to ensure the performance of the tin coating 220, the tin content of the tin coating 220 is in the range of 80% -99.99%, i.e. in the cold spraying or thermal spraying process, the tin content of the tin metal powder is in the range of 80% -99.99%. Therefore, the tin coating 220 can be a tin alloy coating except the pure tin coating 220, and the selection surface of the coating material is increased based on the difference of the pure tin coating 220 and the tin alloy coating in the aspects of material performance, price and the like and can be selected based on actual requirements during production.
Alternatively, the particle size of the tin metal powder is 3 to 50 μm. The cold spray process for forming tin coating 220 from tin metal powder on copper coating 210 is: spraying high-purity tin powder on a local area 110 on the vibrator substrate 10 by adopting self-refrigeration spraying equipment through high-pressure gas, wherein the spraying temperature is 200-900 ℃; the distance between the nozzle and the surface is 10-30 mm, and the gas speed is 300-900 m/s; the spray angle is perpendicular to the surface, and the same track is sprayed 2 to 3 times to obtain a tin coating 220 with a coating thickness of 10 to 80 μm on the surface of the copper coating 210. And, a thermal spraying process of tin metal powder to form tin coating 220 on copper coating 210 is: spraying the copper coating 210 by adopting plasma spraying equipment, wherein the spraying temperature is 500-1000 ℃; the distance between the nozzle and the surface is 30-50 mm, and the gas speed is 300-900 m/s; spraying the tin coating with the thickness of 10-80 mu m on the same track for 2-3 times at a spraying angle perpendicular to the surface.
Alternatively, the tin coating 220 may be formed by a metal deposition process, and 80% -99.99% high purity nickel or nickel alloy wire is selected as the deposition material. The metal deposition parameters for tin metal powder to form tin coating 220 on copper coating 210 are: the deposition equipment provides the propyne gas flow of 12-18L/min, the oxygen gas flow of 9-15L/min and the deposition temperature of 200-1000 ℃. The resulting tin coating 220 has a thickness of 10 to 80 μm.
When performing cold spraying, thermal spraying or metal deposition, the self-made shielding jig 30 can cover other areas except the local area 110, so as to ensure the area range of the material increase on the vibrator substrate 10.
Further, post-processing operations may be performed on the prepared antenna element 100, such as cleaning and drying the prepared antenna element 100.
In some embodiments, the vibrator base 10 is designed in a structure of an upper circle and a lower square, a connecting rod 120 is arranged between the upper circle and the lower square, and the local area 110 is arranged on the surface of the connecting rod 120. In this way, the overall structure of the antenna element 100 can be more stable based on the structural design that the element base 10 is circular at the upper part and square at the lower part and is connected by the connecting rod 120; the partial region 110 for disposing the solderable layer 20 is disposed on the surface of the connection bar 120, and makes full use of the space of the antenna element 100, facilitating the soldering of the wires.
In some embodiments, the localized area 110 is formed with a surface to be attached for enhanced bonding with the copper coating 210 by pretreatment.
It will be appreciated that the pretreatment includes a series of treatments such as degreasing, grinding, and pickling on selected areas of the vibrator substrate 10 to remove impurities and oil stains from the surface of the vibrator substrate 10 and form a coarse microstructure, thereby increasing the bonding area between the vibrator substrate 10 and the copper coating 210 while ensuring cleaning, and improving the bonding effect between the vibrator substrate 10 and the copper coating 210. And the bonding strength between the vibrator substrate 10 and the copper coating 210 can be measured by a tensile tester after bonding.
In one embodiment, the process of preparing the antenna element 100 includes:
1) An aluminum vibrator base 10 is provided.
2) The surface of the vibrator substrate 10 is subjected to chemical cleaning and impurity removal, and then is subjected to grinding and polishing treatment.
3) Spraying high-purity copper powder on a designated area on the pretreated vibrator substrate 10 by using self-refrigeration spraying equipment through high-pressure gas, wherein the spraying temperature is 500 ℃; the distance between the nozzle and the surface is 15mm, and the gas speed is 500m/s; the spraying angle is perpendicular to the surface, and the copper coating 210 with the average thickness of 20 μm is formed on the local area 110 of the vibrator base body 10 by spraying 3 times on the same track.
4) Spraying high-purity tin powder on the copper coating 210 by using self-refrigeration spraying equipment through high-pressure gas, wherein the spraying temperature is 500 ℃; the distance between the nozzle and the surface is 15mm, and the gas speed is 500m/s; the spray angle was perpendicular to the surface and sprayed 3 times on the same track to form a tin coating 220 with an average thickness of 20 μm on the copper coating 210.
5) And the surface of the solderable layer 20 (copper coating 210 and tin coating 220) is ground and polished, so that the surface roughness is reduced, and the appearance quality of the product is improved.
6) The antenna element 100 thus formed is cleaned and dried.
The foregoing description and drawings should not be taken as limiting the scope of the utility model, but rather should be understood to cover all modifications, variations and alternatives falling within the spirit and scope of the utility model as defined by the appended claims.
Claims (9)
1. An antenna element, comprising:
a vibrator base;
the weldable layer is formed in a local area of the surface of the oscillator matrix and comprises a tin coating and a copper coating arranged between the tin coating and the oscillator matrix;
wherein the thickness of the copper coating is in the range of 10-80 mu m, and the thickness of the tin coating is in the range of 10-80 mu m.
2. The antenna element according to claim 1, wherein a bonding strength between the element substrate and the copper coating layer is not lower than 15MPa, and a bonding strength between the copper coating layer and the tin coating layer is not lower than 20MPa.
3. The antenna element according to any one of claims 1-2, wherein the copper coating is formed on the localized area by a cold spray process and the tin coating is formed on the copper coating by a thermal spray process or a cold spray process.
4. The antenna element of claim 3, wherein said solderable layer has a wear rate of 3.3 x 10 when subjected to a wear resistance standard test under a load of 5 to 50N -6 mm 3 within/(m.N).
5. The antenna element of claim 3, wherein the copper coating comprises a pure copper coating or a copper alloy coating.
6. The antenna element of claim 3, wherein the tin coating comprises a pure tin coating or a tin alloy coating.
7. The antenna element of claim 1, wherein the element body is of an upper circular and lower square configuration, a connecting rod is disposed between the upper circular and lower square, and the local area is disposed on a surface of the connecting rod.
8. The antenna element of claim 7, wherein the localized area is pre-treated to form a surface to be attached for enhanced bonding with the copper coating.
9. The antenna element of claim 1, wherein said element body comprises an aluminum element body formed by die casting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321954611.0U CN220672850U (en) | 2023-07-21 | 2023-07-21 | Antenna element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321954611.0U CN220672850U (en) | 2023-07-21 | 2023-07-21 | Antenna element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220672850U true CN220672850U (en) | 2024-03-26 |
Family
ID=90330447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321954611.0U Active CN220672850U (en) | 2023-07-21 | 2023-07-21 | Antenna element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220672850U (en) |
-
2023
- 2023-07-21 CN CN202321954611.0U patent/CN220672850U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104131281B (en) | Simple iron-based laser cladding powder and preparation method for cladding layer | |
| CN1932082A (en) | Fast laser depositing process of preparing antinwear heat resistant composite coating on surface of crystallizer | |
| CN101956167B (en) | Method for preparing target structure | |
| CN105256307A (en) | Cold spraying manufacturing method for anticorrosive aluminum base or zinc-aluminum base metal coating on magnesium alloy surface | |
| CN106757010B (en) | Preparation method of fiber laser cladding nickel-based nickel-coated tungsten carbide cladding coating | |
| CN102936724A (en) | Method for reinforcing nickel-base alloy layer on aluminum alloy surface | |
| CN113445041B (en) | Preparation method of low-cost light high-entropy alloy/aluminum oxide composite coating on surface of magnesium alloy | |
| CN109355652A (en) | Laser melting coating Co-based alloy powder and preparation method thereof | |
| CN104120424B (en) | Iron based laser cladding powder and cladding layer preparation method | |
| CN102465290A (en) | Manufacturing method of double-layer metal composite pipe | |
| CN111118493A (en) | Titanium-based wear-resistant laser cladding layer containing copper on titanium alloy surface and preparation method thereof | |
| CN105039964A (en) | Surface corrosion-resistant and abrasion-resistant composite coating for magnesium alloy and preparation method of surface corrosion-resistant and abrasion-resistant composite coating | |
| CN109440049B (en) | Method for preparing amorphous aluminum coating by compounding electric arc spraying and laser remelting | |
| CN103921493B (en) | A kind of alloy matrix aluminum/NiAl coating composite material and preparation method thereof | |
| CN108823564A (en) | A method of corrosion-inhibiting coating is prepared using laser melting and coating technique | |
| CN103451606B (en) | The making method of cobalt target material assembly | |
| CN110359040A (en) | Consider the CoCrFe of dilution ratexNiMnMo high entropy alloy coating and preparation method thereof | |
| CN103924130B (en) | A kind of aluminium alloy/316L stainless steel coating matrix material and preparation method thereof | |
| CN105671544B (en) | The method for improving 42CrMo steel anti-wear performances in laser melting coating using cladding powder | |
| CN220672850U (en) | Antenna element | |
| CN101637806A (en) | Manufacturing method of metal ceramic coating crystallizer copper plate | |
| CN109112461B (en) | Method for preparing aluminum-based amorphous composite ceramic coating on surface of ocean platform steel by laser two-step method | |
| CN104372284A (en) | Preparation method of plasma sprayed TiN coating layer having relatively good hardness and toughness | |
| CN116145130A (en) | Method for preparing pure copper coating by adopting laser cladding, base material and storage tank | |
| CN109852851A (en) | A kind of low wear rate material and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |