CN101838831A - Ultrasonic barrel plating technique and device thereof - Google Patents
Ultrasonic barrel plating technique and device thereof Download PDFInfo
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- CN101838831A CN101838831A CN200910096845A CN200910096845A CN101838831A CN 101838831 A CN101838831 A CN 101838831A CN 200910096845 A CN200910096845 A CN 200910096845A CN 200910096845 A CN200910096845 A CN 200910096845A CN 101838831 A CN101838831 A CN 101838831A
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- ultrasonic generator
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Abstract
The invention relates to a barrel plating device with the function of ultrasonic vibration, aiming at overcoming the defects that as plating solution is limited by a roller cavity when passing in and out a roller in the traditional barrel plating device, the plating layer effect of micropore and deep-hole parts is poor, and the like. The device mainly comprises a plating bath, an electrode, the roller, an ultrasonic generator and the like, wherein the ultrasonic generator is installed inside a fixed hollow shaft or a hollow electrode in the center of the roller, so that ultrasonic vibration can be effectively generated in the plating process, the dynamic balance of the plating solution is realized, and the deep plating effect and the compactness of a plating layer are improved.
Description
(1) technical field
The present invention relates to a kind of new barrel plating technology and equipment, particularly to the barrel plating of the plating piece that is difficult to obtain good coating.
(2) background technology
Barrel plating is as galvanized a kind of, obtained using widely, in rolling, using more is single barrel of barrel plating machine, and it mainly is made of cylinder and plating tank two portions, and cylinder is the container of workpiece, require plating bath to free in and out simultaneously, in when work, cylinder is at the plating tank internal rotation, plating bath by inflow and outflow with plating tank in electroplate liquid exchange; The plating tank the inside holds electroplate liquid, and provides rotary power, conduction working current by mechanical transmission component and the conductive component that is installed on the electroplating cell body to cylinder.Yet, because plating bath turnover cylinder is subjected to the restriction of hole design on the cylinder, and the design in cavity is relevant such as the shape of size, distribution etc. and plating workpiece, size etc., therefore, the imbalance that distributes owing to plating bath when the workpiece of different shapes size is electroplated in cylinder causes that the difference that coating distributes still exists, and this especially shows more obviously in dark plating, inwall place to the deep hole of some workpiece, micropore, blind hole, current efficiency is lower, and difficult plating well, and is especially more difficult in chromium plating.The major cause that causes the covering power difference is that electroplate liquid is slower in the dispersion at deep hole, blind hole position, be difficult to reach the quick transient equilibrium of concentration, in order to overcome this shortcoming, except the passage that designs suitable cylinder cavity and electroplate liquid turnover cylinder, can also adopt the dispersion of strengthening electroplate liquid to solve.
In electroplating pretreatment process, extensively adopted ultrasonic cleaning equipment to carry out surface treatment, yet because barrel plating groove structure design, the ultrasonic vibration function still fail to be additional in the barrel plating groove.Consider that ultrasonic wave can reduce the concentration polarization in the electrochemical process, make coating finer and close, simultaneously, can promote moistened surface and the migration of plating bath to electroplating parts, improve degree of depth ability (the endoporus method of plating bath, 70mm, 10mm), improve plating (polishing) quality that deep hole, crackle and surface irregularity workpiece are arranged greatly, therefore, if the ultrasonic wave generation device is integrated in the barrel plating device, then can design a kind of brand-new barrel plating equipment, make full use of hyperacoustic high-frequency vibration function, improve covering power.
Based on above imagination, the present invention is provided with ultrasonic transducer (vibrating elements) in the barrel plating groove inside of motion, after the ultrasonic wave generation is sent, acts directly on the surface of workpiece and electroplate liquid, gives full play to hyperacoustic efficiency.
(3) summary of the invention
The objective of the invention is the deficiency at the prior art existence, a kind of barrel plating equipment with the ultrasonic vibration function is provided, its compact construction, plating bath better disperse in cylinder and between cylinder and the plating tank, improve the covering power of barrel plating spare.
The barrel plating device of band ultrasonic vibration of the present invention mainly is made of plating tank, electrode, cylinder, ultrasonic generator etc.Ultrasonic generator can design the outside at cylinder, also can design the inside at cylinder, in order to reduce hyperacoustic shielding, shortens the distance between itself and the workpiece, and the present invention is arranged on cylinder inside with ultrasonic generator.Set-up mode has two kinds:
(1) on the axis direction that cylinder 7 rotates, a fixation hollow axle 5 is set, cylinder is done turning motion around this fixation hollow axle, fixation hollow axle 5 is fixed on the rolling stand end plates and does not rotate with cylinder, the fixation hollow diameter of axle is cylindric to outside surface, reduce the friction between component and the tubular shaft, the tubular shaft inner radial surface can be round, can be rectangle or irregular also, decides according to inner components.Ultrasonic wave generating device 4 is set in tubular shaft, and electrode 6 and ultrasonic wave generating device supply lead 3 are fixed on the interior hollow parts of tubular shaft 5 and are connected to outside the cylinder 7.Support 1 is fixed on the fixation hollow axle 5.Ultrasonic wave generating device 4 is outside equipped with the rigid protecting plate, perhaps structure such as catch net.Simultaneously, ultrasonic generator is produced corrosion, carry out seal isolation between the interior liquid of ultrasonic wave generating device 4 and cylinder in order to prevent electroplate liquid.Its structure as shown in Figure 1.
(2) as (one) described architecture basics on, ultrasonic generator is not arranged in the fixation hollow axle, but electrode 6 is designed to coreless armature, and ultrasonic generator is installed in the electrode 6, and ultrasonic wave generating device supply lead 3 is outside electrode power-line leads to cylinder 7.Ultrasonic wave generating device 4 is outside equipped with the rigid protecting plate, perhaps structure such as catch net.In order to prevent that electroplate liquid from producing corrosion to ultrasonic generator, carry out seal isolation between the interior liquid of ultrasonic wave generating device 4 and cylinder.In this structure, fixation hollow axle 5 is not necessary.Its structure as shown in Figure 2.
The technical characterictic of ultrasonic electroplating technology is as follows:
To put into cylinder through the unplated piece of pre-treatment, start ultrasonic generator before plating or when electroplating, used ultrasonic frequency is 20-100KHz, require to decide according to plating piece difference and environmental noise, usually select about 30KHz, for the used frequency of the plating of electronic product usually more than 30KHz.Ultrasonic power intensity is to select 0.1～1.0 watt of/square centimeter scope according to the area of workpiece to be plated, generally chooses 0.3～0.6 watt/square centimeter power level.After finishing, plating closes ultrasonic generator.
(4) description of drawings
Accompanying drawing 1 has shown the built-in ultrasonic wave barrel plating of fixation hollow axle device synoptic diagram.Wherein, 1: the ultrasonic oscillator support; 2: the ultrasonic oscillator protective shield; 3: the ultrasonic transducer supply lead; 4: ultrasonic oscillator; 5: hollow stationary shaft; 6: electrolysis electrode; 7: cylinder; 8: the rolling stand end plates.
Accompanying drawing 3 has shown the design sketch of ultrasonic nickel plating and common nickel plating.Wherein Fig. 3 (1) is ultrasonic nickel plating design sketch, and Fig. 3 (2) is common nickel plating design sketch.
(5) embodiment
The present invention has designed the barrel plating equipment of built-in ultra-sonic generator; ultrasonic generator is arranged on fixation hollow axle or coreless armature inside; yet; its protection domain is not limited to this, is built in electrode next door, is built in the extension that situation such as cylinder wall can be considered this design philosophy such as ultrasonic generator.Below in conjunction with specific embodiment effect of the present invention is described further:
Embodiment 1:
Nickel plating prevents the corrosion of NdFeB magnet on the sintered Nd Fe B magnet, and used processing condition are: NiSO
4.7H
2O 250 grams per liters, NiCl
2.6H
2O 50 grams per liters, H
3BO
340 grams per liters, sodium lauryl sulphate 0.06 grams per liter, adjusting electroplate liquid pH=3.5 are increased to 40 ℃ with bath temperature, and cathode current density is 1 ampere/square decimeter; Start ultrasonic generator before electroplating beginning, the employing ultrasonic frequency is that the ultrasonic wave of 0.5 watt/square centimeter of 25KHz, ultrasonic power intensity is disperseed, the microstructure of the coating that is obtained is shown in accompanying drawing 3 (1), adopt same electroplating technology, the microstructure of the coating that is obtained when not opening ultrasonic generator is shown in accompanying drawing 3 (2).As can be seen from the figure, employing is with hyperacoustic barrel plating equipment coating obviously to want much fine and close.
Embodiment 2:
Having copper facing on the stainless material of deep hole, hole depth is 100mm, and diameter is 1mm, adopt and be with ultransonic barrel plating equipment, and be CuSO at electroplate liquid
45H
2O 40 grams per liters; K
2CO
380 grams per liters; HEDP 80 grams per liters; Transfer the pH=9.5 temperature with KOH: 30 ℃, cathode current density: 1 ampere/square decimeter, anode compares greater than 2 with cathode area, starts ultrasonic generator before electroplating beginning, and ultrasonic frequency is 30KHz, ultrasonic power intensity is 0.5 watt/square centimeter, after plating is finished, find that this deep hole electroplates dark plating and can reach 70mm, close ultrasonic generator, compare experiment under the same plating condition, the coating degree of depth that the result obtains has only 20mm.This explanation under the condition that adopts ultrasonic generator, can greatly improve the coating performance of inner walls of deep holes.
Claims (5)
1. the barrel plating equipment with the ultrasonic vibration function mainly is made of plating tank, electrode, cylinder, ultrasonic generator etc.
2. ultrasonic generator as claimed in claim 1 is arranged in centre of the drum's one tubular shaft, and wires such as generator power are connected to the cylinder outside by tubular shaft.
3. tubular shaft as claimed in claim 2 is fixed on the rolling stand end plates and does not rotate with cylinder.
4. tubular shaft as claimed in claim 2, its radially-outer surface are cylindric, and the inner radial surface shape requires to be designed to different shapes according to inner components.
5. ultrasonic generator as claimed in claim 1 is arranged in the coreless armature, and the producer wire is drawn out to the cylinder outside with electrode connecting line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910096845A CN101838831A (en) | 2009-03-17 | 2009-03-17 | Ultrasonic barrel plating technique and device thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910096845A CN101838831A (en) | 2009-03-17 | 2009-03-17 | Ultrasonic barrel plating technique and device thereof |
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| CN101838831A true CN101838831A (en) | 2010-09-22 |
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| CN200910096845A Pending CN101838831A (en) | 2009-03-17 | 2009-03-17 | Ultrasonic barrel plating technique and device thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103726085A (en) * | 2013-12-17 | 2014-04-16 | 上海交通大学 | Pretreatment method of deep hole electroplating |
| CN104213165A (en) * | 2013-05-31 | 2014-12-17 | 谢君广 | Ultrasonic vibration electroplating method and electroplating device for mount chip electronic component |
| GB2523014A (en) * | 2013-05-10 | 2015-08-12 | Royal Mint Ltd | Plating of articles |
| CN105543908A (en) * | 2016-02-29 | 2016-05-04 | 广州鸿葳科技股份有限公司 | Solution and method for cyanide-free alkaline bright barrel copper plating |
| CN106119940A (en) * | 2016-08-17 | 2016-11-16 | 河南平高电气股份有限公司 | Method of barrel electroplating and realize the plating cage of the method |
| CN107039168A (en) * | 2017-04-26 | 2017-08-11 | 凉山稀土产业技术研究院 | A kind of preparation method of Fe-B rare-earth permanent magnet electroplating surface coating |
-
2009
- 2009-03-17 CN CN200910096845A patent/CN101838831A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2523014A (en) * | 2013-05-10 | 2015-08-12 | Royal Mint Ltd | Plating of articles |
| GB2523014B (en) * | 2013-05-10 | 2016-09-14 | The Royal Mint Ltd | Plating of articles |
| US10526718B2 (en) | 2013-05-10 | 2020-01-07 | The Royal Mint Limited | Plating of articles |
| CN104213165A (en) * | 2013-05-31 | 2014-12-17 | 谢君广 | Ultrasonic vibration electroplating method and electroplating device for mount chip electronic component |
| CN104213165B (en) * | 2013-05-31 | 2019-03-01 | 谢君广 | Mount the vibration of ultrasonic wave electro-plating method and electroplanting device of chip electronic component |
| CN103726085A (en) * | 2013-12-17 | 2014-04-16 | 上海交通大学 | Pretreatment method of deep hole electroplating |
| CN103726085B (en) * | 2013-12-17 | 2016-06-01 | 上海交通大学 | The pretreatment process of deep hole plating |
| CN105543908A (en) * | 2016-02-29 | 2016-05-04 | 广州鸿葳科技股份有限公司 | Solution and method for cyanide-free alkaline bright barrel copper plating |
| CN105543908B (en) * | 2016-02-29 | 2018-04-13 | 广州鸿葳科技股份有限公司 | A kind of non-cyanide alkali is bright to roll copper-plated solution and method |
| CN106119940A (en) * | 2016-08-17 | 2016-11-16 | 河南平高电气股份有限公司 | Method of barrel electroplating and realize the plating cage of the method |
| CN107039168A (en) * | 2017-04-26 | 2017-08-11 | 凉山稀土产业技术研究院 | A kind of preparation method of Fe-B rare-earth permanent magnet electroplating surface coating |
| CN107039168B (en) * | 2017-04-26 | 2019-03-05 | 凉山稀土产业技术研究院 | A kind of preparation method of Fe-B rare-earth permanent magnet electroplating surface coating |
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Open date: 20100922 |