CN110401056A - A kind of corrosion-resistant coating for electronic equipment interfaces - Google Patents
A kind of corrosion-resistant coating for electronic equipment interfaces Download PDFInfo
- Publication number
- CN110401056A CN110401056A CN201910726258.2A CN201910726258A CN110401056A CN 110401056 A CN110401056 A CN 110401056A CN 201910726258 A CN201910726258 A CN 201910726258A CN 110401056 A CN110401056 A CN 110401056A
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- coating
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Classifications
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/10—Electroplating with more than one layer of the same or of different metals
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D7/00—Electroplating characterised by the article coated
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/02—Contact members
- H01R13/03—Contact members characterised by the material, e.g. plating, or coating materials
Abstract
The present invention relates to electroplating technologies, espespecially a kind of corrosion-resistant coating for electronic equipment interfaces, substrate coating including being plated on substrate surface, substrate coating is the nickel plating tungsten layer to improve substrate corrosion resistance, the surface of nickel tungsten plating is successively electroplate with the pre-plating layer for improving adjacent coating cementability, to improve the first silver coating of substrate corrosion resistance and electric conductivity, for improving the second Gold plated Layer of adjacent coating cementability, the 4th Gold plated Layer for improving the third rhodanizing layer of ruthenium of substrate corrosion resistance and wearability and for improving substrate welding performance.There is preferable wearability, anti-oxidant, electric conductivity and corrosivity by the coating structure of the above electroplated coating combination, and the adhesiveness between galvanization coating and substrate material is good, further improves substrate welding performance.
Description
Technical field
The present invention relates to electroplating technology, espespecially a kind of corrosion-resistant coating for electronic equipment interfaces.
Background technique
It is universal with electronic product, electronic product using more and more extensive, electronic product in use, electronics
Interface often plugs, and for plugging the higher electrical interface of frequency, abrasiveness is larger, and the place of abrasion is oxidized easily
And corrosion, often there is poor electric contact, in order to improve wearability and anticorrosive oxidisability, the terminal of current many electrical interfaces
It is all electroplate with galvanization coating, one layer of wearing layer and antioxidant anticorrosive layer have been generally comprised in galvanization coating, due to the thickness of coating
Limited, otherwise thickness is excessive causes internal stress larger, is easy to fall off；Therefore wearability, the corrosion resistance of terminal are inadequate；If coating
Thickness it is blocked up, electric conductivity will reduce；In addition to this, some galvanization coatings have ignored the associativity with base material,
After plating, the adhesiveness between galvanization coating and substrate material is poor, cause the later period using when electroplated layer fall off, if serious
It also will affect the welding relationship between electrical interface and wiring board and electrical interface caused to fall off.
Summary of the invention
To solve the above problems, the present invention provides a kind of corrosion-resistant coating for electronic equipment interfaces, which has
Preferable wearability, anti-oxidant, electric conductivity and corrosivity, and adhesiveness and welding between galvanization coating and substrate material
Better performances.
To achieve the above object, the technical solution adopted by the present invention is that providing a kind of for the corrosion-resistant of electronic equipment interfaces
Coating, the substrate coating including being plated on substrate surface, the substrate coating are the nickel plating to improve substrate corrosion resistance
Tungsten layer, the surface of the nickel tungsten plating are successively electroplate with pre-plating layer for improving adjacent coating cementability, to improve substrate
First silver coating of corrosion resistance and electric conductivity, the second Gold plated Layer for improving adjacent coating cementability, for improving
The third rhodanizing layer of ruthenium of substrate corrosion resistance and wearability and the 4th Gold plated Layer for improving substrate welding performance.
As a preferred embodiment, the nickel plating tungsten layer with a thickness of 0.5 to 5 micron.
As a preferred embodiment, the pre-plating layer with a thickness of 0.025 to 0.25 micron.
As a preferred embodiment, first silver coating with a thickness of 0.5 to 6 micron.
As a preferred embodiment, second Gold plated Layer with a thickness of 0.025 to 0.5 micron.
As a preferred embodiment, the third rhodanizing layer of ruthenium with a thickness of 0.25 to 4 micron.
As a preferred embodiment, the 4th Gold plated Layer with a thickness of 0.025 to 0.25 micron.
As a preferred embodiment, the pre-plating layer is one of Gold plated Layer or silver coating.
The beneficial effects of the present invention are:
The present invention is by being successively electroplate with nickel plating tungsten layer, pre-plating layer, the first silver coating, the on the substrate surface of electrical interface
The coating structure of two Gold plated Layers, third rhodanizing layer of ruthenium and the 4th Gold plated Layer, the above electroplated coating combination has preferable wearability, antioxygen
Change, electric conductivity and corrosivity, and adhesiveness between galvanization coating and substrate material and welding performance are preferable.
Wherein, since current electrical interface generally uses copper product, using nickel plating tungsten layer as substrate coating, Ke Yihe
Copper has preferable bonding, improves flatness；Secondly, nickel plating tungsten layer has high temperature resistant, corrosion resistance, inoxidizability, thermal expansion
Coefficient is low, and avoidable electrical interface frequently plugs friction and brings damage or deformation；In addition nickel plating tungsten layer can be by electrical interface
Surface is flattened, and flatness is improved, and increases the beauty on electrical interface surface；And the first silver coating is good due to its electric conductivity
Well, cost is cheap, can play the role of buffering when doing electrolysis test, increase the corrosion-resistant time；In addition to this, third
Rhodanizing layer of ruthenium has high rigidity, characteristic wear-resistant, resistant to chemical etching, to improve the antioxidant anticorrosive on electrical interface surface
Property, even if electrical interface there are part wears, the oxidation or corrosion of large area are still avoided, guarantees electrical contact, makes the plating of product
The resistance to plug number of layer increases, and extends electrical interface service life, improves coating service life and charge efficiency, reaches more practical
Purpose；By nickel plating tungsten layer, the first silver coating and third rhodanizing layer of ruthenium these three coating, the corrosion resistant of coating structure is substantially increased
Corrosion energy；
Secondly, the binding force of pre-plating layer and the second Gold plated Layer to improve adjacent coating, since golden material or ag material have
There is preferable ductility, therefore can reduce the internal stress of adjacent coating junction, and then improves bonding force；
Finally, outermost 4th Gold plated Layer, since golden material has lower contact resistance, and its electric conductivity is good
Well, it is easy to welding, corrosion resistance by force and there is certain wearability, thus the welding performance of electrical interface can be improved and lead
Electrical property.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Drawing reference numeral explanation: 1- nickel plating tungsten layer；2- pre-plating layer；The first silver coating of 3-；The second Gold plated Layer of 4-；5- third rhodanizing
Layer of ruthenium；The 4th Gold plated Layer of 6-.
Specific embodiment
The present invention is described in detail with Figure of description combined with specific embodiments below.
Refering to Figure 1, the present invention is about a kind of corrosion-resistant coating for electronic equipment interfaces, including it is plated on base
The substrate coating on material surface, the substrate coating are the nickel plating tungsten layer 1 to improve substrate corrosion resistance, the nickel plating tungsten layer
1 surface is successively electroplate with pre-plating layer 2 for improving adjacent coating cementability, to improve substrate corrosion resistance and conduction
First silver coating 3 of performance, the second Gold plated Layer 4 for improving adjacent coating cementability, for improve substrate corrosion resistance and
The third rhodanizing layer of ruthenium 5 of wearability and the 4th Gold plated Layer 6 for improving substrate welding performance；Wherein, the nickel plating tungsten layer 1
With a thickness of 0.5 to 5 micron, the pre-plating layer 2 with a thickness of 0.025 to 0.25 micron, first silver coating 3 with a thickness of
0.5 to 6 micron, second Gold plated Layer 4 with a thickness of 0.025 to 0.5 micron, the third rhodanizing layer of ruthenium 5 with a thickness of
0.25 to 4 micron, the 4th Gold plated Layer 6 with a thickness of 0.025 to 0.25 micron, the pre-plating layer 2 be Gold plated Layer or silver-plated
One of layer.
Nickel plating tungsten layer 1, pre-plating layer 2, the first silver coating are successively electroplate on the substrate surface that the present invention passes through electrical interface
3, the second Gold plated Layer 4, third rhodanizing layer of ruthenium 5 and the 4th Gold plated Layer 6.Wherein, since current electrical interface generally uses copper material
Material is used as substrate coating using nickel plating tungsten layer 1, can there is preferable bonding with copper, improves flatness；Secondly, nickel plating tungsten layer 1 has
There are high temperature resistant, corrosion resistance, inoxidizability, thermal expansion coefficient is low, and avoidable electrical interface frequently plugs friction and brings damage
Or deformation；In addition nickel plating tungsten layer 1 can flatten the surface of electrical interface, improve flatness, increase electrical interface surface
Beauty；And the first silver coating 3 can play slow since its electric conductivity is good, cost is cheap when doing electrolysis test
The effect of punching increases the corrosion-resistant time；In addition to this, third rhodanizing layer of ruthenium 5 has high rigidity, wear-resistant, resistant to chemical etching
Characteristic, even if electrical interface has part wears, still avoids large area to improve the antioxidant anticorrosive on electrical interface surface
Oxidation or corrosion, guarantee electrical contact, increase the resistance to plug number of the coating of product, extension electrical interface service life, mention
High coating service life and charge efficiency, reach more practical purpose；Pass through nickel plating tungsten layer 1, the first silver coating 3 and third rhodanizing
These three coating of layer of ruthenium 5, substantially increase the corrosion resistance of coating structure；
Secondly, the binding force of pre-plating layer 2 and the second Gold plated Layer 4 to improve adjacent coating, due to golden material or ag material
It with preferable ductility, therefore can reduce the internal stress of adjacent coating junction, and then improve bonding force；Finally, outermost
4th Gold plated Layer 6 of layer, since golden material has lower contact resistance, and its electric conductivity is good, is easy to weld, corrosion resistant
Corrosion is strong and has certain wearability, thus the welding performance and electric conductivity of electrical interface can be improved.
Below by specific embodiment, the invention will be further described.
Embodiment 1
A kind of corrosion-resistant coating for electronic equipment interfaces is present embodiments provided, including is successively plated on substrate surface
Nickel plating tungsten layer 1, Gold plated Layer, the first silver coating 3, the second Gold plated Layer 4, third rhodanizing layer of ruthenium 5 and the 4th Gold plated Layer 6, the plating
Nickel tungsten layer 1 with a thickness of 0.5 micron, the Gold plated Layer with a thickness of 0.025 micron, first silver coating 3 with a thickness of 0.5
Micron, second Gold plated Layer 4 with a thickness of 0.025 micron, the third rhodanizing layer of ruthenium 5 with a thickness of 0.25 micron, it is described
4th Gold plated Layer 6 with a thickness of 0.025 micron.
Embodiment 2
A kind of corrosion-resistant coating for electronic equipment interfaces is present embodiments provided, including is successively plated on substrate surface
Nickel plating tungsten layer 1, Gold plated Layer, the first silver coating 3, the second Gold plated Layer 4, third rhodanizing layer of ruthenium 5 and the 4th Gold plated Layer 6, the plating
Nickel tungsten layer 1 with a thickness of 5 microns, the Gold plated Layer with a thickness of 0.25 micron, first silver coating 3 with a thickness of 6 microns,
Second Gold plated Layer 4 with a thickness of 0.5 micron, the third rhodanizing layer of ruthenium 5 with a thickness of 4 microns, the 4th Gold plated Layer 6
With a thickness of 0.25 micron.
The pre-plating layer 2 of embodiment 1 and embodiment 2 has selected Gold plated Layer, it is ensured that the binding force of Gold plated Layer, enhancing wearability with
Anti-corrosion ability, compared to silver coating, although cost is high, effect is but more preferably.In addition, embodiment 1 provide it is a kind of ultra-thin
Corrosion resistance coating, and embodiment 2 provides a kind of corrosion resistance coating of super thick.
Embodiment 3
A kind of corrosion-resistant coating for electronic equipment interfaces is present embodiments provided, including is successively plated on substrate surface
Nickel plating tungsten layer 1, silver coating, the first silver coating 3, the second Gold plated Layer 4, third rhodanizing layer of ruthenium 5 and the 4th Gold plated Layer 6, the plating
Nickel tungsten layer 1 with a thickness of 0.5 micron, the silver coating with a thickness of 0.025 micron, first silver coating 3 with a thickness of 0.5
Micron, second Gold plated Layer 4 with a thickness of 0.025 micron, the third rhodanizing layer of ruthenium 5 with a thickness of 0.25 micron, it is described
4th Gold plated Layer 6 with a thickness of 0.025 micron.
Embodiment 4
A kind of corrosion-resistant coating for electronic equipment interfaces is present embodiments provided, including is successively plated on substrate surface
Nickel plating tungsten layer 1, silver coating, the first silver coating 3, the second Gold plated Layer 4, third rhodanizing layer of ruthenium 5 and the 4th Gold plated Layer 6, the plating
Nickel tungsten layer 1 with a thickness of 5 microns, the silver coating with a thickness of 0.25 micron, first silver coating 3 with a thickness of 6 microns,
Second Gold plated Layer 4 with a thickness of 0.5 micron, the third rhodanizing layer of ruthenium 5 with a thickness of 4 microns, the 4th Gold plated Layer 6
With a thickness of 0.25 micron.
The pre-plating layer 2 of embodiment 3 and embodiment 4 has selected silver coating, nickel plating tungsten layer displacement silver layer is prevented, to enhance plating
Binding force between nickel tungsten layer and other coating, and silver is lower compared to the cost of gold.In addition, embodiment 3 provides a kind of surpass
Thin, inexpensive corrosion resistance coating, and embodiment 4 provides the corrosion resistance coating of a kind of super thick, low cost.
Embodiment of above be only preferred embodiments of the present invention will be described, not to the scope of the present invention into
Row limits, and without departing from the spirit of the design of the present invention, this field ordinary engineering and technical personnel is to technical side of the invention
The various changes and improvements that case is made, should fall within the scope of protection determined by the claims of the present invention.
Claims (8)
1. a kind of corrosion-resistant coating for electronic equipment interfaces, the substrate coating including being plated on substrate surface, feature exist
In: the substrate coating is the nickel plating tungsten layer to improve substrate corrosion resistance, and the surface of the nickel tungsten plating is successively electroplated
There is pre-plating layer for improving adjacent coating cementability, first to improve substrate corrosion resistance and electric conductivity silver-plated
Layer, the second Gold plated Layer for improving adjacent coating cementability, the third rhodanizing for improving substrate corrosion resistance and wearability
Layer of ruthenium and the 4th Gold plated Layer for improving substrate welding performance.
2. a kind of corrosion-resistant coating for electronic equipment interfaces according to claim 1, it is characterised in that: the nickel plating
Tungsten layer with a thickness of 0.5 to 5 micron.
3. a kind of corrosion-resistant coating for electronic equipment interfaces according to claim 1, it is characterised in that: the preplating
Layer with a thickness of 0.025 to 0.25 micron.
4. a kind of corrosion-resistant coating for electronic equipment interfaces according to claim 1, it is characterised in that: described first
Silver coating with a thickness of 0.5 to 6 micron.
5. a kind of corrosion-resistant coating for electronic equipment interfaces according to claim 1, it is characterised in that: described second
Gold plated Layer with a thickness of 0.025 to 0.5 micron.
6. a kind of corrosion-resistant coating for electronic equipment interfaces according to claim 1, it is characterised in that: the third
Rhodanizing layer of ruthenium with a thickness of 0.25 to 4 micron.
7. a kind of corrosion-resistant coating for electronic equipment interfaces according to claim 1, it is characterised in that: the described 4th
Gold plated Layer with a thickness of 0.025 to 0.25 micron.
8. a kind of corrosion-resistant coating for electronic equipment interfaces according to claim 1, it is characterised in that: the preplating
Layer is one of Gold plated Layer or silver coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910726258.2A CN110401056A (en) | 2019-08-07 | 2019-08-07 | A kind of corrosion-resistant coating for electronic equipment interfaces |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910726258.2A CN110401056A (en) | 2019-08-07 | 2019-08-07 | A kind of corrosion-resistant coating for electronic equipment interfaces |
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| Publication Number | Publication Date |
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| CN110401056A true CN110401056A (en) | 2019-11-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910726258.2A Pending CN110401056A (en) | 2019-08-07 | 2019-08-07 | A kind of corrosion-resistant coating for electronic equipment interfaces |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110820024A (en) * | 2019-12-25 | 2020-02-21 | 无锡华晶利达电子有限公司 | Coating structure for enhancing corrosion resistance of mobile phone plug connector |
| CN113564654A (en) * | 2021-07-15 | 2021-10-29 | 深圳市拓普联科技术股份有限公司 | Needle tube and method for producing needle tube |
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| CN101978561A (en) * | 2008-03-19 | 2011-02-16 | 古河电气工业株式会社 | Terminal for connector and method of producing the same |
| CN106591904A (en) * | 2016-11-29 | 2017-04-26 | 维沃移动通信有限公司 | Electroplating coating, terminal and mobile terminal |
| CN107146964A (en) * | 2017-07-01 | 2017-09-08 | 东莞普瑞得五金塑胶制品有限公司 | A kind of galvanization coating and terminal, electrical interface, electronic equipment for terminal |
| CN208501124U (en) * | 2018-04-16 | 2019-02-15 | 东莞普瑞得五金塑胶制品有限公司 | A kind of anticorrosion electroplated layer with silver alloy layers |
| CN109913917A (en) * | 2019-04-10 | 2019-06-21 | 东莞市合航精密科技有限公司 | A kind of corrosion resistant coating of mobile phone fast charge interface energization |
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2019
- 2019-08-07 CN CN201910726258.2A patent/CN110401056A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101978561A (en) * | 2008-03-19 | 2011-02-16 | 古河电气工业株式会社 | Terminal for connector and method of producing the same |
| CN106591904A (en) * | 2016-11-29 | 2017-04-26 | 维沃移动通信有限公司 | Electroplating coating, terminal and mobile terminal |
| CN107146964A (en) * | 2017-07-01 | 2017-09-08 | 东莞普瑞得五金塑胶制品有限公司 | A kind of galvanization coating and terminal, electrical interface, electronic equipment for terminal |
| CN208501124U (en) * | 2018-04-16 | 2019-02-15 | 东莞普瑞得五金塑胶制品有限公司 | A kind of anticorrosion electroplated layer with silver alloy layers |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110820024A (en) * | 2019-12-25 | 2020-02-21 | 无锡华晶利达电子有限公司 | Coating structure for enhancing corrosion resistance of mobile phone plug connector |
| CN113564654A (en) * | 2021-07-15 | 2021-10-29 | 深圳市拓普联科技术股份有限公司 | Needle tube and method for producing needle tube |
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Application publication date: 20191101 |