CN110396708A - A kind of corrosion resistance coating of silver combined plating - Google Patents
A kind of corrosion resistance coating of silver combined plating Download PDFInfo
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- CN110396708A CN110396708A CN201910726259.7A CN201910726259A CN110396708A CN 110396708 A CN110396708 A CN 110396708A CN 201910726259 A CN201910726259 A CN 201910726259A CN 110396708 A CN110396708 A CN 110396708A
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- coating
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- corrosion resistance
- silver
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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
- C25D5/12—Electroplating with more than one layer of the same or of different metals at least one layer being of nickel or chromium
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electroplating Methods And Accessories (AREA)
Abstract
The present invention relates to electroplating technologies, the corrosion resistance coating of espespecially a kind of silver-colored combined plating, substrate coating, the first silvering for improving substrate electric conductivity, the first gold plate for improving adjacent coating cementability and the rhodium ruthenium coating for improving substrate corrosion resistance and wearability for being used to adjust substrate surface flatness including being successively plated on substrate surface.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 preferable.
Description
Technical field
The present invention relates to electroplating technology, the corrosion resistance coating of espespecially a kind of silver-colored combined plating.
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.
Summary of the invention
To solve the above problems, the present invention provides a kind of corrosion resistance coating of silver-colored combined plating, which has preferable
Wearability, electric conductivity and corrosivity, and the adhesiveness between galvanization coating and substrate material is preferable.
To achieve the above object, the technical solution adopted by the present invention is that providing a kind of corrosion resistance plating of silver-colored combined plating
Layer, including being successively plated on the substrate coating for adjusting substrate surface flatness of substrate surface, for improving substrate conduction
First silvering of property, the first gold plate for improving adjacent coating cementability and for improving substrate corrosion resistance and wear-resisting
The rhodium ruthenium coating of property.
As a preferred embodiment, it is provided between the substrate coating and the first silvering for improving the pre- of cementability
Coating.
As a preferred embodiment, the pre-plating layer with a thickness of 0.025 to 0.25 micron.
As a preferred embodiment, the substrate coating is nickel coating,
As a preferred embodiment, the substrate coating with a thickness of 0.5 to 5 micron.
As a preferred embodiment, first silvering with a thickness of 0.5 to 6 micron,.
As a preferred embodiment, first gold plate with a thickness of 0.025 to 0.5 micron.
As a preferred embodiment, the rhodium ruthenium coating with a thickness of 0.25 to 4 micron.
As a preferred embodiment, the surface of the rhodium ruthenium coating is also coated with the plating of the second gold medal for improving substrate weldability
Layer.
As a preferred embodiment, second gold plate with a thickness of 0.025 to 0.25 micron.
The beneficial effects of the present invention are:
Substrate coating, the first silvering, the plating of the first gold medal are successively electroplate on the substrate surface that the present invention passes through electrical interface
The coating structure of layer and rhodium ruthenium coating, the above electroplated coating combination has preferable wearability, anti-oxidant, electric conductivity and corrosivity,
And the adhesiveness between galvanization coating and substrate material is preferable.
Wherein, since cost is relatively low for nickel metal, substrate coating is preferably nickel coating, and current electrical interface generally uses
Copper product has nickel coating in the electroplating surface of electrical interface, and on the one hand the flatness of adjustable substrate surface, nickel have with copper
Preferable binding force, another aspect nickel coating can also improve the hardness oxidative resistance of substrate；First silvering is due to its electric conductivity
Energy is good, cost is cheap, can play the role of buffering when doing electrolysis test, increase the corrosion-resistant time；And it is arranged
The binding force of the first silvering Yu rhodium ruthenium coating can be improved in the first gold plate between first silvering and rhodium ruthenium coating；Rhodium ruthenium
Antioxidant anticorrosive of the coating to improve electrical interface surface still avoids large area even if electrical interface has part wears
Oxidation or corrosion, guarantee electrical contact.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Drawing reference numeral explanation: 1- substrate coating；2- pre-plating layer；The first silvering of 3-；The first gold plate of 4-；The plating of 5- rhodium ruthenium
Layer；The second gold plate of 6-.
Specific embodiment
The present invention is described in detail with Figure of description combined with specific embodiments below.
Refering to Figure 1, a kind of corrosion resistance coating of the present invention about silver-colored combined plating, including successively it is plated on base
The substrate coating 1 for adjusting substrate surface flatness on material surface, is used the first silvering 3 for improving substrate electric conductivity
In the first gold plate 4 for improving adjacent coating cementability and rhodium ruthenium coating 5 for improving substrate corrosion resistance and wearability.
Wherein, the substrate coating 1 is nickel coating, is provided between the substrate coating 1 and the first silvering 3 for changing
The pre-plating layer 2 of kind cementability, the surface of the rhodium ruthenium coating 5 is also coated with the second gold plate 6 for improving substrate weldability, institute
State substrate coating 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 medal plating
Layer 3 with a thickness of 0.5 to 6 micron, first gold plate 4 with a thickness of 0.025 to 0.5 micron, the thickness of the rhodium ruthenium coating 5
Degree be 0.25 to 4 micron, second gold plate 6 with a thickness of 0.025 to 0.25 micron.
Substrate coating 1, pre-plating layer 2, the first silvering are successively electroplate on the substrate surface that the present invention passes through electrical interface
3, the first gold plate 4, rhodium ruthenium coating 5 and the second gold plate 6, the coating structure of the above electroplated coating combination have preferable wearability,
Anti-oxidant, electric conductivity and corrosivity, and the adhesiveness between galvanization coating and substrate material is preferable, convenient for electrical interface
Welding.
Wherein, since cost is relatively low for nickel metal, substrate coating 1 is preferably nickel coating, and current electrical interface is generally adopted
With copper product, there is nickel coating in the electroplating surface of electrical interface, on the one hand the flatness of adjustable substrate surface, nickel and copper have
There is preferable binding force, another aspect nickel coating can also improve the hardness oxidative resistance of substrate；And it is arranged in substrate coating 1 and the
Pre-plating layer 2 between one silvering 3 is used to improve the binding force of substrate coating 1 and the first silvering 3, and the material of pre-plating layer 2 can
Think one of gold or silver；First silvering 3 can do electrolysis test since its electric conductivity is good, cost is cheap
When play the role of buffering, increase the corrosion-resistant time；And the first gold medal between the first silvering 3 and rhodium ruthenium coating 5 is set
The binding force of the first silvering 3 and rhodium ruthenium coating 5 can be improved in coating 4；Rhodium ruthenium coating 5 is to improve the anti-of electrical interface surface
Oxidation corrosion still avoids the oxidation or corrosion of large area even if electrical interface has part wears, guarantees electrical contact；Most
Second gold plate 6 of outer layer with lower contact resistance, electric conductivity is good, be easy to weld, corrosion resistance is strong and has one
Fixed wearability (referring to hard gold), thus printed circuit board, in terms of have a wide range of applications.
Below by specific embodiment, the invention will be further described.
Embodiment 1
A kind of wear-resisting, good coating of corrosion resistance is present embodiments provided, including being successively plated on substrate surface
Nickel coating, the first silvering 3, the first gold plate 4 and rhodium ruthenium coating 5.
The coating structure of the above electroplated coating combination has preferable wearability, anti-oxidant, electric conductivity and corrosivity, and electricity
Adhesiveness between coated coating and substrate material is preferable.
Embodiment 2
On the basis of embodiment 1, present embodiments provide a kind of most thin coating, the nickel coating with a thickness of 0.5
Micron, first silvering 3 with a thickness of 0.5 micron, first gold plate 4 with a thickness of 0.025 micron, the rhodium ruthenium
Coating 5 with a thickness of 0.25 micron.
Embodiment 3
On the basis of embodiment 1, a kind of optimal corrosion resistance coating of bond properties is present embodiments provided, in nickel plating
Pre-plating layer 2 is provided between layer and the first silvering 3.The knot between nickel coating and the first silvering 3 is increased by pre-plating layer 2
With joint efforts, in addition the first silvering 3 and rhodium ruthenium coating 5 are again provided with the first Gold plated Layer to increase the binding force of both.
Embodiment 4
On the basis of embodiment 1, a kind of corrosion resistance coating convenient for welding is present embodiments provided, in rhodium ruthenium coating
5 electroplating surface has the second Gold plated Layer.Since golden material has, lower contact resistance, electric conductivity are good, are easy to weld, resistance to
Corrosivity is strong and has certain wearability (referring to hard gold), thus printed circuit board, in terms of have and widely answer
With.
Embodiment 5
A kind of multi-functional coating is present embodiments provided, nickel coating, pre-plating layer including being successively plated on substrate surface
2, the first silvering 3, the first gold plate 4, rhodium ruthenium coating 5 and the second gold plate 6.The coating structure of the above electroplated coating combination have compared with
Good wearability, anti-oxidant, electric conductivity and corrosivity, and the adhesiveness between galvanization coating and substrate material is preferable, just
In the welding of electrical interface.
Embodiment 6
On the basis of embodiment 5, present embodiments provide a kind of most thick coating, the nickel coating it is micro- with a thickness of 5
Rice, the pre-plating layer 2 with a thickness of 0.25 micron, first silvering 3 with a thickness of 6 microns, first gold plate 4
With a thickness of 0.5 micron, the rhodium ruthenium coating 5 with a thickness of 4 microns, second gold plate 6 with a thickness of 0.25 micron.
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 (10)
1. a kind of corrosion resistance coating of silver combined plating, it is characterised in that: including be successively plated on substrate surface for adjusting
The substrate coating of integral basis material surface smoothness, the first silvering for improving substrate electric conductivity are glued for improving adjacent coating
First gold plate of connecing property and rhodium ruthenium coating for improving substrate corrosion resistance and wearability.
2. a kind of corrosion resistance coating of silver-colored combined plating according to claim 1, it is characterised in that: the substrate coating
The pre-plating layer for improving cementability is provided between the first silvering.
3. a kind of corrosion resistance coating of silver-colored combined plating according to claim 2, it is characterised in that: the pre-plating layer
With a thickness of 0.025 to 0.25 micron.
4. a kind of corrosion resistance coating of silver-colored combined plating according to claim 1, it is characterised in that: the substrate coating
For nickel coating.
5. a kind of corrosion resistance coating of silver-colored combined plating according to claim 4, it is characterised in that: the substrate coating
With a thickness of 0.5 to 5 micron.
6. a kind of corrosion resistance coating of silver-colored combined plating according to claim 1, it is characterised in that: the first silver medal plating
Layer with a thickness of 0.5 to 6 micron.
7. a kind of corrosion resistance coating of silver-colored combined plating according to claim 1, it is characterised in that: the first gold medal plating
Layer with a thickness of 0.025 to 0.5 micron.
8. a kind of corrosion resistance coating of silver-colored combined plating according to claim 1, it is characterised in that: the rhodium ruthenium coating
With a thickness of 0.25 to 4 micron.
9. a kind of corrosion resistance coating of silver-colored combined plating according to claim 1, it is characterised in that: the rhodium ruthenium coating
Surface be also coated with the second gold plate for improving substrate weldability.
10. a kind of corrosion resistance coating of silver-colored combined plating according to claim 9, it is characterised in that: second gold medal
Coating with a thickness of 0.025 to 0.25 micron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910726259.7A CN110396708A (en) | 2019-08-07 | 2019-08-07 | A kind of corrosion resistance coating of silver combined plating |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910726259.7A CN110396708A (en) | 2019-08-07 | 2019-08-07 | A kind of corrosion resistance coating of silver combined plating |
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| CN110396708A true CN110396708A (en) | 2019-11-01 |
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| CN201910726259.7A Pending CN110396708A (en) | 2019-08-07 | 2019-08-07 | A kind of corrosion resistance coating of silver combined plating |
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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 |
| CN113215570A (en) * | 2021-05-13 | 2021-08-06 | 东莞市川富电子有限公司 | Design method of electrolytic plating resistance of terminal |
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| JPS6184392A (en) * | 1984-09-29 | 1986-04-28 | Iwasaki Mekki:Kk | Surface treatment |
| US20020192492A1 (en) * | 2001-05-11 | 2002-12-19 | Abys Joseph Anthony | Metal article coated with near-surface doped tin or tin alloy |
| US20040121626A1 (en) * | 2002-09-26 | 2004-06-24 | Fci Americas Technology, Inc. | Surface mounted electrical components and method for mounting and retaining same |
| CN104619883A (en) * | 2012-09-19 | 2015-05-13 | Jx日矿日石金属株式会社 | Surface-treated plated material and method for producing same, and electronic component |
| CN106048680A (en) * | 2016-07-22 | 2016-10-26 | 东莞普瑞得五金塑胶制品有限公司 | Special galvanical corrosion-resistant coating for fast charging interface of mobile phone |
| CN106591904A (en) * | 2016-11-29 | 2017-04-26 | 维沃移动通信有限公司 | Electroplating coating, terminal and mobile terminal |
| CN206188898U (en) * | 2016-07-22 | 2017-05-24 | 东莞普瑞得五金塑胶制品有限公司 | Cell -phone fills corrosion resistant special cladding material of interface circular telegram soon |
| 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 CN201910726259.7A patent/CN110396708A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6184392A (en) * | 1984-09-29 | 1986-04-28 | Iwasaki Mekki:Kk | Surface treatment |
| US20020192492A1 (en) * | 2001-05-11 | 2002-12-19 | Abys Joseph Anthony | Metal article coated with near-surface doped tin or tin alloy |
| US20040121626A1 (en) * | 2002-09-26 | 2004-06-24 | Fci Americas Technology, Inc. | Surface mounted electrical components and method for mounting and retaining same |
| CN104619883A (en) * | 2012-09-19 | 2015-05-13 | Jx日矿日石金属株式会社 | Surface-treated plated material and method for producing same, and electronic component |
| CN106048680A (en) * | 2016-07-22 | 2016-10-26 | 东莞普瑞得五金塑胶制品有限公司 | Special galvanical corrosion-resistant coating for fast charging interface of mobile phone |
| CN206188898U (en) * | 2016-07-22 | 2017-05-24 | 东莞普瑞得五金塑胶制品有限公司 | Cell -phone fills corrosion resistant special cladding material of interface circular telegram soon |
| CN106591904A (en) * | 2016-11-29 | 2017-04-26 | 维沃移动通信有限公司 | Electroplating coating, terminal and mobile 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 |
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 |
| CN113215570A (en) * | 2021-05-13 | 2021-08-06 | 东莞市川富电子有限公司 | Design method of electrolytic plating resistance of terminal |
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Application publication date: 20191101 |