CN103882490A - Electroplating method - Google Patents
Electroplating method Download PDFInfo
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- CN103882490A CN103882490A CN201210572475.9A CN201210572475A CN103882490A CN 103882490 A CN103882490 A CN 103882490A CN 201210572475 A CN201210572475 A CN 201210572475A CN 103882490 A CN103882490 A CN 103882490A
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Abstract
The invention provides an electroplating method. The electroplating method at least comprises: forming a nickel plating layer on the surface of a to-be electroplated article, wherein the to-be electroplated article surface comprises a contact zone, a welding zone and a body zone connected between the contact zone and the welding zone; forming an anti-corrosion plating layer on the nickel plating layer in the contact zone, and forming a tin plating layer on the nickel plating layer in the welding zone or forming an anti-corrosion plating layer and a tin plating layer from bottom to top on the nickel plating layer in the welding zone; performing integral black plating on the surface of the to-be electroplated article to form a black plating layer. The electroplating method helps to guarantee the audio frequency terminal contact zone has a black appearance and has good anticorrosion performance, the welding zone has excellent weldability, and also the electroplating method has the advantages of good stability, high efficiency and low cost.
Description
Technical field
The present invention relates to a kind of metallic material surface treating method, particularly relate to a kind of electro-plating method.
Background technology
Mobile phone, CD player, wireless telephony, MP3 machine, digitizing are taken down notes on the various electronicss such as this computer, DVD, digital camera and are equipped with audio socket (Audio Jack), in order to audio output interface to be provided, for user.Conventionally audio socket comprises plastic cement pedestal and several audio frequency terminals, and wherein plastic cement pedestal is provided with the audio jack that runs through pedestal front and back, and audio jack inside is stretched in audio frequency terminal one end.It is cylindric that conventional audio jack is ladder, and per stage forms in electrical contact as different electrodes and audio frequency terminals different in audio jack, realize the transmission of sound signal.
Fig. 1 is a kind of structural representation of terminal, and described terminal comprises zone of action 1 ', welding zone 2 ' and is connected in the tagma 3 ' between described zone of action 1 ' and welding zone 2 '.Wherein zone of action 1 ' stretches in audio jack, comprises a contact 11 ' on described zone of action 1 ', and in order to form in electrical contactly with audio jack, and welding zone 2 ' is welded on circuit card.
In production, conventionally to form coating in terminal surfaces, reach the object such as anticorrosive.Because the zone of action of terminal is positioned at audio jack, be viewable portion, client has particular requirement to its outward appearance as color.Taking mobile phone as example, be black at the plastic cement pedestal of phone housing audio socket, the terminal part that can see in audio jack is that zone of action all requires to electroplate into black.
At present, it is as follows that manufacture has the electro-plating method of the terminal that good corrosion energy and zone of action are black: due to the reason of technique, black coating can not adopt continuous plating, the general mode that adopts rack plating, terminal surfaces is distinguished to Entire nickel coating, gold-plated from bottom to top, then cover one deck ink in welding zone, then overall black coating, then the ink of welding zone and black coating are washed.Gold plate can be effectively anticorrosive, and the reason that need to cover welding zone is that on gold plate, to form after black coating weldability bad, but welding zone covers cost is multiplied.
Summary of the invention
The shortcoming of prior art in view of the above, the object of the present invention is to provide a kind of electro-plating method, for solving, the electro-plating method stability that prior art manufacture has the terminal that good corrosion energy and zone of action are black is low, cost is high, problem that can not volume production.
For achieving the above object and other relevant objects, the invention provides a kind of electro-plating method, described electro-plating method at least comprises the following steps:
1) form nickel coating at electroplated article surface, described electroplated article surface comprises zone of action, welding zone and is connected in the tagma between described zone of action and welding zone;
2) on the nickel coating of described zone of action, form anti-corrosion coating, on the nickel coating of described welding zone, form tin coating or form respectively anti-corrosion coating and tin coating from bottom to top;
3) in described step 2) afterwards form described electroplated article surface carry out overall black coating, form black coating.
Alternatively, in described step 2) in be also included in the step that forms anti-corrosion coating on the nickel coating in described tagma.
Alternatively, in described step 2) in be also included in the step that forms tin coating on the nickel coating in described tagma.
Alternatively, in described step 2) in be also included on the nickel coating of one end that described tagma connects described zone of action and form etch resistant layer, connect the step that forms tin coating on the nickel coating of one end of described welding zone.
Alternatively, described anti-corrosion coating is gold plate or palladium nickel coating.
Alternatively, described black coating is black nickel coating.
Alternatively, the material of described electroplated article is copper alloy.
Alternatively, the formation method of described anti-corrosion coating, tin coating is brush plating.
As mentioned above, electro-plating method of the present invention, there is following beneficial effect: form anti-corrosion coating and tin coating in zone of action and the welding zone of terminal respectively, owing to still thering is good weldability after the black coating of tin coating surface, the technical process of covering and cleaning without welding zone, the anti-corrosion coating of zone of action can ensure that again terminal has good corrosion resistance simultaneously.Form erosion resistance coating and tin coating and all can adopt the method for brush plating to select to electroplate, and can plate continuously, the technique that need not cover as welding zone need to be stopped or slowly, production efficiency is high.And electro-plating method good stability of the present invention, can ensure that the tin coating of welding zone is complete, ensure weldability.Use electro-plating method manufacture of the present invention to there is terminal that good corrosion energy and zone of action are black and have that technique is simple, stability is high, production efficiency is high, low cost and other advantages.
Brief description of the drawings
Fig. 1 is shown as the structural representation of a kind of terminal in prior art.
Fig. 2 is shown as the schematic diagram of electro-plating method of the present invention electroplated article in embodiment mono-.
Fig. 3 is shown as electro-plating method of the present invention schematic diagram at electroplated article surface formation nickel coating in embodiment mono-.
Fig. 4 be shown as electro-plating method of the present invention in embodiment mono-respectively zone of action and welding zone nickel coating on form the schematic diagram of anti-corrosion coating, tin coating.
Fig. 5 is shown as electro-plating method of the present invention schematic diagram at electroplated article surface formation black coating in embodiment mono-.
Fig. 6 is shown as the schematic diagram that is formed with anti-corrosion coating on the nickel coating in electro-plating method of the present invention tagma in embodiment mono-.
Fig. 7 is shown as the schematic diagram that is formed with tin coating on the nickel coating in electro-plating method of the present invention tagma in embodiment mono-.
Fig. 8 and Fig. 9 are shown as the schematic diagram that is formed with respectively anti-corrosion coating, tin coating on the nickel coating at electro-plating method of the present invention two ends, tagma in embodiment mono-.
Figure 10 is shown as the schematic diagram that electro-plating method of the present invention forms anti-corrosion coating, forms respectively anti-corrosion coating and tin coating from bottom to top on the nickel coating of welding zone in embodiment bis-on the nickel coating of zone of action.
Figure 11 is shown as the schematic diagram that is formed with anti-corrosion coating on the nickel coating in electro-plating method of the present invention tagma in embodiment bis-.
Figure 12 is shown as the schematic diagram that is formed with tin coating on the nickel coating in electro-plating method of the present invention tagma in embodiment bis-.
Figure 13 is shown as the schematic diagram that is formed with respectively anti-corrosion coating, tin coating on the nickel coating at electro-plating method of the present invention two ends, tagma in embodiment bis-.
Figure 14 is shown as electro-plating method of the present invention schematic diagram at electroplated article surface formation black coating in embodiment bis-.
Element numbers explanation
1,1 ' zone of action
11 ' contact
2,2 ' welding zone
3,3 ' tagma
4 nickel coatings
5 anti-corrosion coatings
6 tin coatings
7 black coatings
Embodiment
Below, by specific specific examples explanation embodiments of the present invention, those skilled in the art can understand other advantages of the present invention and effect easily by the disclosed content of this specification sheets.The present invention can also be implemented or be applied by other different embodiment, and the every details in this specification sheets also can be based on different viewpoints and application, carries out various modifications or change not deviating under spirit of the present invention.
Refer to Fig. 2 to Figure 14.It should be noted that, the diagram providing in the present embodiment only illustrates basic conception of the present invention in a schematic way, satisfy and only show with assembly relevant in the present invention in graphic but not component count, shape and size drafting while implementing according to reality, when its actual enforcement, kenel, quantity and the ratio of each assembly can be a kind of random change, and its assembly layout kenel also may be more complicated.
Embodiment mono-
As shown in Fig. 2 to Fig. 9, the invention provides a kind of electro-plating method, described method at least comprises the following steps:
Step 1), first refers to Fig. 1, as shown in the figure, provides electroplated article, and described electroplated article are divided into zone of action 1, welding zone 2 and are connected in the tagma 3 between described zone of action 1 and welding zone 2 by function.Refer to again Fig. 2, as shown in the figure, form a nickel coating 4 at electroplated article surface.
Particularly, the material of described electroplated article can be copper alloy or other good conductor metal.In the present embodiment, described electroplated article will describe as an example of audio frequency terminal example.
Step 2), refer to Fig. 4, as shown in the figure, on the nickel coating 4 of described zone of action 1, form anti-corrosion coating 5 respectively, described welding zone 2 nickel coating 4 on form tin coating 6.
Concrete, described anti-corrosion coating 5 is gold plate or palladium nickel coating.In the present embodiment, described anti-corrosion coating 5 is preferably gold plate.The formation of described anti-corrosion coating 5 and tin coating 6 all adopts the method for brush plating.Brush plating refers to one with anodic bonding the special plated pen of electrolytic solution that can provide plating to need, the mobile electro-plating method that carries out grooming on the product surface as negative electrode.The method can be selected to electroplate, in the present embodiment, adopt brush plating can be respectively zone of action 1 and welding zone 2 nickel coating 4 on form anti-corrosion coating 5, tin coating 6.The method is plating continuously, and the technique that need not cover as welding zone need to be stopped or slowly, production efficiency is high.
Step 3), refers to Fig. 5, as shown in the figure, in described step 2) the audio frequency terminal surfaces that forms afterwards carries out overall black coating, forms black coating 7.
Concrete, described black coating 7 is black nickel coating.Due to the restriction of technique, the formation of black coating 7 cannot adopt the mode of brush plating, cannot select to electroplate.In the present embodiment, the formation of described black coating 7 adopts the method for rack plating.Rack plating refers to the plating that utilizes hanger hanging product to carry out, and hangs up then overall black coating in the present embodiment by audio frequency terminal.
In the above-described embodiments, the tagma of audio frequency terminal only has nickel coating, and erosion resistance is not good, but in practical application, described tagma is positioned at the plastic cement pedestal of audio socket, and covering of plastic cement pedestal can play a protective role, and prevents that tagma is corroded.
In other embodiments, also can on the nickel coating in described tagma, form anti-corrosion coating or tin coating, strengthen the provide protection to tagma.Refer to Fig. 6, be shown as the schematic diagram that is formed with anti-corrosion coating 5 on the nickel coating 4 in tagma 3, this anti-corrosion coating together forms can form anti-corrosion coating on the nickel coating of described zone of action 1 time.Refer to Fig. 7, be shown as the schematic diagram that is formed with tin coating 6 on the nickel coating 4 in tagma 3, in like manner, this tin coating together forms can form tin coating on the nickel coating of described welding zone 2 time.
In another embodiment, can also on the nickel coating of described zone of action 1, form respectively anti-corrosion coating, extend plating scope form tin coating on the nickel coating of described welding zone 2 time, connect in described tagma on the nickel coating of one end of described zone of action 1 and form anti-corrosion coating, and connect in described tagma on the nickel coating of one end of described welding zone 2 and form tin coating 6.Refer to Fig. 8, be shown as the schematic diagram that is formed with respectively anti-corrosion coating, tin coating on the nickel coating at two ends, tagma.
It is pointed out that 5 layers of anticorrosive platings on the nickel coating at two ends, described tagma can be connected (as shown in Figure 8) with tin coating 6, also can not connect.Refer to Fig. 9, be shown as on the nickel coating at two ends, tagma and be formed with respectively anti-corrosion coating and tin coating, but the two unconnected schematic diagram.
After plating, the surface, zone of action of audio frequency terminal is black, meets the requirement of outward appearance, and surface, welding zone is also black, but has good weldability.
Use electro-plating method of the present invention to form anti-corrosion coating in the zone of action of audio frequency terminal, and form black coating on its surface, not only can meet the appearance requirement of audio frequency terminal, also there is good erosion resistance; Simultaneously the welding zone of audio frequency terminal has tin coating and can ensure the in the situation that of having black coating on its surface, still to have good weldability.Electro-plating method of the present invention with respect to welding zone cover technique have advantages of good stability, efficiency high, can volume production, can significantly reduce costs.
Embodiment bis-
Embodiment bis-and embodiment mono-adopt essentially identical technical scheme, and difference is the coating structure difference that the two forms in welding zone.In embodiment mono-, on the nickel coating of welding zone, be only formed with tin coating and black coating, and in the present embodiment, on the nickel coating of welding zone, be formed with respectively anti-corrosion coating, tin coating and black coating from bottom to top.
Refer to Figure 10 to Figure 14, the invention provides a kind of electro-plating method, the method at least comprises the following steps:
First essentially identical step 1) in execution and embodiment mono-, forms a nickel coating 4 in audio frequency terminal surfaces.
Then adopt the method for brush plating to form anti-corrosion coating 5 on the nickel coating 4 of described zone of action 1, on the nickel coating 4 of described welding zone 2, form respectively anti-corrosion coating 5 and tin coating 6 from bottom to top.Refer to Figure 10, be shown as the schematic diagram that forms anti-corrosion coating on the nickel coating of zone of action, form respectively anti-corrosion coating and tin coating from bottom to top on the nickel coating of welding zone.Concrete, described anti-corrosion coating 5 is gold plate or palladium nickel coating.In the present embodiment, described anti-corrosion coating 5 is preferably gold plate.
The present embodiment is with respect to embodiment mono-, due to many one deck anti-corrosion coatings 5 on welding zone 2, therefore welding zone also has good erosion resistance, on this anti-corrosion coating 5, form tin coating 6 again, can ensure that welding zone still has good weldability in the situation that of audio frequency terminal surfaces entirety black coating.
In the above-described embodiments, the tagma of audio frequency terminal only has nickel coating, in other embodiments, also can on the nickel coating in described tagma, form anti-corrosion coating or tin coating, strengthens the provide protection to tagma.Refer to Figure 11, be shown as the schematic diagram that is formed with anti-corrosion coating 5 on the nickel coating 4 in tagma 3, this anti-corrosion coating extends plating area can form anti-corrosion coating on the nickel coating of described zone of action 1 and welding zone 2 time and together forms.Refer to Fig. 7, be shown as the schematic diagram that is formed with tin coating 6 on the nickel coating 4 in tagma 3, in like manner, this tin coating extends plating area can form tin coating on the nickel coating of described zone of action 1 and welding zone 2 time and together forms.
In another embodiment, can also on the nickel coating of described zone of action 1, form respectively anti-corrosion coating, extend plating scope form tin coating on the nickel coating of described welding zone 2 time, connect described contact in described tagma and go to form anti-corrosion coating on the nickel coating of one end of 1, connect on the nickel coating of one end of described welding zone 2 and form tin coating 6.Refer to Fig. 8, be shown as the schematic diagram that is formed with respectively anti-corrosion coating, tin coating on the nickel coating at two ends, tagma.
It is pointed out that 5 layers of anticorrosive platings on the nickel coating at two ends, described tagma can be connected (as shown in Figure 8) with tin coating 6, also can not connect.
Finally carry out and the essentially identical step 3) of embodiment mono-, carry out overall black coating in audio frequency terminal surfaces, form black coating 7.Refer to Figure 14, be shown as the schematic diagram of audio frequency terminal surfaces formation black coating.
Use electro-plating method of the present invention to form anti-corrosion coating in the zone of action of audio frequency terminal, and form black coating on its surface, not only can meet the appearance requirement of audio frequency terminal, also there is good erosion resistance; The welding zone of audio frequency terminal has anti-corrosion coating and tin coating simultaneously simultaneously, not only can ensure still have good weldability in the situation that of having black coating on its surface, makes welding zone also have good corrosion resistance simultaneously.Electro-plating method of the present invention covers technique with respect to welding zone and has advantages of that cost is low, efficiency is high.
In sum, electro-plating method of the present invention forms anti-corrosion coating on the nickel coating in audio frequency termination contact district, on the nickel coating of welding zone, form tin coating or form respectively anti-corrosion coating and tin coating from bottom to top, and by audio frequency terminal entirety black coating, not only ensured that audio frequency termination contact district outward appearance is black, has good corrosion energy and welding zone has the requirement of good weldability, and there is good stability, efficiency is high, cost is low.So the present invention has effectively overcome various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all can, under spirit of the present invention and category, modify or change above-described embodiment.Therefore, such as in affiliated technical field, have and conventionally know that the knowledgeable, not departing from all equivalence modifications that complete under disclosed spirit and technological thought or changing, must be contained by claim of the present invention.
Claims (8)
1. an electro-plating method, is characterized in that, described electro-plating method at least comprises the following steps:
1) form nickel coating at electroplated article surface, described electroplated article surface comprises zone of action, welding zone and is connected in the tagma between described zone of action and welding zone;
2) on the nickel coating of described zone of action, form anti-corrosion coating, on the nickel coating of described welding zone, form tin coating or form respectively anti-corrosion coating and tin coating from bottom to top;
3) in described step 2) afterwards form described electroplated article surface carry out overall black coating, form black coating.
2. electro-plating method according to claim 1, is characterized in that: in described step 2) in be also included in the step that forms anti-corrosion coating on the nickel coating in described tagma.
3. electro-plating method according to claim 1, is characterized in that: in described step 2) in be also included in the step that forms tin coating on the nickel coating in described tagma.
4. electro-plating method according to claim 1, it is characterized in that: in described step 2) in be also included on the nickel coating of one end that described tagma connects described zone of action and form etch resistant layer, and connect the step that forms tin coating on the nickel coating of one end of described welding zone in described tagma.
5. electro-plating method according to claim 1, is characterized in that: described anti-corrosion coating is gold plate or palladium nickel coating.
6. electro-plating method according to claim 1, is characterized in that: described black coating is black nickel coating.
7. electro-plating method according to claim 1, is characterized in that: the material of described electroplated article is copper alloy.
8. electro-plating method according to claim 1, is characterized in that: the formation method of described anti-corrosion coating, tin coating is brush plating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210572475.9A CN103882490A (en) | 2012-12-20 | 2012-12-20 | Electroplating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210572475.9A CN103882490A (en) | 2012-12-20 | 2012-12-20 | Electroplating method |
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|---|---|
| CN103882490A true CN103882490A (en) | 2014-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210572475.9A Pending CN103882490A (en) | 2012-12-20 | 2012-12-20 | Electroplating method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110885996A (en) * | 2019-12-25 | 2020-03-17 | 东莞立德精密工业有限公司 | Hardware surface treatment process and hardware |
| CN113073367A (en) * | 2021-03-16 | 2021-07-06 | 东莞立德精密工业有限公司 | Manufacturing process of conductive terminal |
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| CN102088146A (en) * | 2009-12-04 | 2011-06-08 | 富港电子（东莞）有限公司 | Terminal and electroplating method thereof |
| JP4896391B2 (en) * | 2004-11-09 | 2012-03-14 | 日本圧着端子製造株式会社 | Plating contact and contact plating method |
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| CN1268535A (en) * | 1999-03-01 | 2000-10-04 | 莫恩股份有限公司 | Corrosion resistance and wear-resistance decoration coatings |
| CN1249366A (en) * | 1999-09-30 | 2000-04-05 | 上海交通大学 | Pd-Ni alloy and rare earth-Pd-Ni alloy plating materials for plating electric brush |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110885996A (en) * | 2019-12-25 | 2020-03-17 | 东莞立德精密工业有限公司 | Hardware surface treatment process and hardware |
| CN113073367A (en) * | 2021-03-16 | 2021-07-06 | 东莞立德精密工业有限公司 | Manufacturing process of conductive terminal |
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