CN114959815A - Method and equipment for improving electroplating rate - Google Patents
Method and equipment for improving electroplating rate Download PDFInfo
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- CN114959815A CN114959815A CN202210194139.9A CN202210194139A CN114959815A CN 114959815 A CN114959815 A CN 114959815A CN 202210194139 A CN202210194139 A CN 202210194139A CN 114959815 A CN114959815 A CN 114959815A
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- electroplating
- ultrasonic
- conversion unit
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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
- C25D5/20—Electroplating using ultrasonics, vibrations
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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
- C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Electroplating Methods And Accessories (AREA)
Abstract
The invention discloses a method and equipment for improving electroplating speed, wherein an ultrasonic conversion unit is arranged in an electroplating bath of an electroplating device to generate ultrasonic vibration, so that electroplating solution in the electroplating bath is more uniform, the condition that the plating layer at the middle part of the surface of a piece is thinner and the plating layer at the edge is thicker is avoided, the electroplating effect is ensured, and the flow of the electroplating solution can be accelerated by the ultrasonic vibration, so that the electroplating speed can be improved. The electroplating is carried out by utilizing the equipment and the method, even if the surface area of a processed workpiece is larger, the electroplating solution in the electroplating bath is uniform and the flowing of the electroplating solution can be accelerated due to the ultrasonic vibration, so that the electroplating effect is improved.
Description
Technical Field
The invention relates to the technical field of electroplating processing, in particular to a method and equipment for improving electroplating speed.
Background
The electroplating is a surface processing method which takes a plated base metal as a cathode in a solution containing a metal to be plated and enables cations of the metal to be plated in the plating solution to be deposited on the surface of the base metal through an electroplating effect to form a plating layer.
Disclosure of Invention
In order to overcome the defects of the prior art, one of the purposes of the invention is to provide a method for improving the electroplating speed, wherein ultrasonic vibration is added during electroplating to accelerate the flow of electroplating solution, so that the electroplating speed can be improved; the second objective of the present invention is to provide a device for increasing electroplating speed, wherein an ultrasonic wave conversion unit is installed at the bottom of the electroplating device to generate ultrasonic vibration, so as to make the electroplating solution in the electroplating tank more uniform.
One of the purposes of the invention is realized by adopting the following technical scheme:
a method for increasing plating rate, comprising the steps of:
1) putting the electroplating solution into an electroplating bath of an electroplating device, and installing an ultrasonic conversion unit on a bath body of the electroplating bath;
2) and opening the ultrasonic conversion unit and the electroplating device, and then putting the workpiece to be electroplated into the electroplating device, and electroplating while ultrasonically vibrating.
Further, the ultrasonic wave conversion unit comprises a plurality of ultrasonic generators and a plurality of electroacoustic transducers, the electroacoustic transducers are uniformly distributed at the bottom of the electroplating bath, and the ultrasonic generators are connected with the electroacoustic transducers in parallel or in series.
Still further, the ultrasonic conversion unit is arranged at the bottom of the tank body of the electroplating tank.
Further, in the step 2), the frequency of the ultrasonic vibration in the step 2) is 20000 + 40000Hz, the time is 5-10 min, and the parameters can be changed according to the process requirements.
The second purpose of the invention is realized by adopting the following technical scheme:
an apparatus for increasing the electroplating rate, wherein the use method of the apparatus is as the method for increasing the electroplating rate, and the apparatus comprises an electroplating device and an ultrasonic conversion unit; wherein, the electroplating device is provided with an electroplating bath, and the bottom of the bath body of the electroplating bath is provided with an ultrasonic conversion unit.
Furthermore, the ultrasonic wave conversion unit comprises a plurality of ultrasonic generators and a plurality of electroacoustic transducers, the electroacoustic transducers are uniformly arranged at the bottom of the electroplating bath, the output efficiency of the generators is the highest through matching, because the transducers have electrostatic reactance, the output voltage and current on the working frequency have certain phase difference, so that the output power cannot obtain the expected maximum output, the output efficiency of the generators is reduced, and therefore, an opposite reactance is connected in parallel or connected in series at the output end of the generators, and the load of the generators is a pure resistance, namely, a tuning effect. The sound energy of the power ultrasonic frequency source is converted into mechanical vibration through the electroacoustic transducer, ultrasonic waves are radiated to the electroplating liquid in the groove through the wall of the electroplating groove, and micro bubbles in the liquid in the groove can keep vibrating under the action of the ultrasonic waves due to the radiation of the ultrasonic waves. Accelerating the flow of the solution and increasing the adsorption of metal ions on the surface of the electroplated part.
Furthermore, the electroplating device also comprises a circulating pipe which is arranged at the bottom of the electroplating bath and is communicated with a solution inlet of the electroplating bath.
Compared with the prior art, the invention has the beneficial effects that:
(1) according to the method for improving the electroplating speed, the ultrasonic wave conversion unit is arranged in the electroplating bath of the electroplating device to generate ultrasonic wave vibration, so that the electroplating solution in the electroplating bath is more uniform, the condition that the plating layer at the middle part of the surface of a piece is thinner and the plating layer at the edge is thicker is avoided, the electroplating effect is ensured, and the flow of the electroplating solution can be accelerated by the ultrasonic wave vibration, so that the electroplating speed can be improved.
(2) According to the equipment for improving the electroplating speed, the ultrasonic conversion unit is arranged at the bottom of the tank body of the electroplating tank, so that even if the surface area of a processed workpiece is larger, the electroplating solution in the electroplating tank can be uniform and the flowing of the electroplating solution can be accelerated due to ultrasonic vibration, and the electroplating effect is improved.
(3) The ultrasonic conversion unit comprises an ultrasonic generator and an electric transducer, the electric transducer converts sound energy of a power ultrasonic frequency source into mechanical vibration, ultrasonic waves are radiated to electroplating liquid in the tank through the wall of the electroplating tank, and micro bubbles in liquid in the tank can keep vibrating under the action of the ultrasonic waves due to the radiation of the ultrasonic waves. Accelerating the flow of the solution and increasing the adsorption of metal ions on the surface of the electroplated part.
Drawings
FIG. 1 is a front view of an apparatus for increasing the rate of electroplating;
FIG. 2 is a top view of an apparatus for increasing the rate of plating;
in the figure: 1. an electroplating device; 2. an electroacoustic transducer; 3. an electroplating bath; 4. an ultrasonic generator; 5. a circulation pipe.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.
Example 1
As shown in FIGS. 1-2, an apparatus for increasing electroplating rate comprises an electroplating device 1 and an ultrasonic wave conversion unit; wherein, the electroplating device 1 is provided with an electroplating bath 3, and the bottom of the bath body of the electroplating bath 3 is provided with an ultrasonic conversion unit. The ultrasonic wave conversion unit comprises a plurality of ultrasonic wave generators 4 and a plurality of electroacoustic transducers 2, the electroacoustic transducers 2 are uniformly distributed at the bottom of the electroplating bath 3, and the ultrasonic wave generators 4 are connected with the electroacoustic transducers 2 in parallel or in series. The electroplating device 1 further comprises a circulating pipe 5, and the circulating pipe 5 is arranged at the bottom of the electroplating tank 3 and is communicated with a solution inlet of the electroplating tank 3.
A method for increasing plating rate, comprising the steps of:
1) feeding electroplating solution through a circulating pipe 5 at the bottom of the electroplating tank 3 to control the circulating amount, putting the electroplating solution into the electroplating tank 3 of the electroplating device 1, and installing an ultrasonic conversion unit on the tank body of the electroplating tank 3;
2) then the ultrasonic generator 4, the electroacoustic transducer 2 and the electroplating device 1 are opened, a workpiece to be electroplated is placed, and electroplating is carried out while ultrasonic vibration is carried out; wherein the frequency of ultrasonic vibration is 30000Hz, and the time is 8 min.
Comparative example 1
Comparative example 1 differs from example 1 in that: comparative example 1 no ultrasonic wave conversion unit (the electroacoustic transducer 2 and the ultrasonic wave generator 4) was installed, and the model and the setting parameters of the remaining electroplating apparatus 1 were the same as those of example 1.
Performance test
Selecting a 15 x 30cm rectangular iron workpiece, and using Cu as electroplating solution 2+ And (3) solution. The hardness of the work pieces of comparative example 1 and example 1 was measured by GB/T6739-1996 Pencil test for coating hardness, and the porosity of the coating was measured by the filter paper method, as shown in Table 1.
Table 1 hardness data of the coatings of example 1 and comparative example 1
As can be seen from Table 1, the hardness of the plating layer prepared by the method of example 1 is obviously higher than that of comparative example 1, and the porosity of the plating layer is lower than that of comparative example 1, which shows that the compactness is good. The ultrasonic conversion unit is added, the circulation of the solution can be improved by ultrasonic vibration, the electroplating speed is increased, the production efficiency is improved, and the coating prepared under the ultrasonic condition also has the advantages of high hardness, good compactness and the like.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.
Claims (7)
1. A method for increasing electroplating speed is characterized by comprising the following steps:
1) putting the electroplating solution into an electroplating bath of an electroplating device, and installing an ultrasonic conversion unit on a bath body of the electroplating bath;
2) and opening the ultrasonic conversion unit and the electroplating device, putting the workpiece to be electroplated, and electroplating while performing ultrasonic vibration.
2. The method for increasing the electroplating rate according to claim 1, wherein the ultrasonic wave conversion unit comprises a plurality of ultrasonic wave generators and a plurality of electroacoustic transducers, the plurality of electroacoustic transducers are uniformly distributed at the bottom of the electroplating bath, and the ultrasonic wave generators are connected with the plurality of electroacoustic transducers in parallel or in series.
3. The method for increasing an electroplating rate of claim 1, wherein the ultrasonic wave conversion unit is disposed at the bottom of the tank body of the electroplating tank.
4. The method as claimed in claim 1, wherein in step 2), the frequency of the ultrasonic vibration is 20000-40000Hz, and the time is 5-10 min.
5. An apparatus for increasing electroplating rate, which is used according to the method for increasing electroplating rate of any one of claims 1 to 4, and comprises an electroplating device and an ultrasonic conversion unit; wherein, the electroplating device is provided with an electroplating bath, and the bottom of the bath body of the electroplating bath is provided with an ultrasonic conversion unit.
6. The apparatus for increasing electroplating rate according to claim 5, wherein the ultrasonic wave conversion unit comprises a plurality of ultrasonic wave generators and a plurality of electroacoustic transducers, the plurality of electroacoustic transducers are uniformly arranged at the bottom of the electroplating bath, and the ultrasonic wave generators are connected in parallel or in series with the plurality of electroacoustic transducers.
7. The apparatus for increasing a plating rate according to claim 5, wherein the plating device further comprises a circulation pipe provided at the bottom of the plating tank and communicating with the solution inlet of the plating tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210194139.9A CN114959815A (en) | 2022-03-01 | 2022-03-01 | Method and equipment for improving electroplating rate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210194139.9A CN114959815A (en) | 2022-03-01 | 2022-03-01 | Method and equipment for improving electroplating rate |
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| Publication Number | Publication Date |
|---|---|
| CN114959815A true CN114959815A (en) | 2022-08-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210194139.9A Pending CN114959815A (en) | 2022-03-01 | 2022-03-01 | Method and equipment for improving electroplating rate |
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| Country | Link |
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| CN (1) | CN114959815A (en) |
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2022
- 2022-03-01 CN CN202210194139.9A patent/CN114959815A/en active Pending
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