CN203187762U - Vacuum boiling electrodeposition device - Google Patents
Vacuum boiling electrodeposition device Download PDFInfo
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- CN203187762U CN203187762U CN 201320206292 CN201320206292U CN203187762U CN 203187762 U CN203187762 U CN 203187762U CN 201320206292 CN201320206292 CN 201320206292 CN 201320206292 U CN201320206292 U CN 201320206292U CN 203187762 U CN203187762 U CN 203187762U
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Abstract
The utility model relates to a vacuum boiling electrodeposition device, belonging to the field of electrochemical machining technology and equipment. For solving the problem that the conventional electrodeposition device and the existing electrolyte vacuum boiling electrodeposition device both cannot be directly used for the vacuum surface boiling electrodeposition method in which the electrolyte contains inert particles, the utility model provides the novel vacuum boiling electrodeposition device. The vacuum boiling electrodeposition device comprises an electrodeposition system composed of a cathode, an anode, the electrolyte and a closed electrodeposition tank, and an electrolyte circulation filtering system composed of a circulation pump, a PLC (Programmable Logic Controller), a flow control valve, a fine filter and a primary filter screen, wherein the electrolyte contains non-conducting inert particles and the circulation pump is a two-way variable pump. With the vacuum boiling electrodeposition device, a diffusion layer can be reduced effectively, even eliminated, the defects, such as hard spot, pin holes, deposition or uneven stress, on the electroforming layer surface caused by hydrogen evolution, point discharge or impurities and other reasons are reduced, and the electroforming layer with smooth and shining surface is obtained.
Description
Technical field
The utility model relates to a kind of vacuum boiling electric deposition device, belongs to electro-chemical machining technology and apparatus field.
Background technology
Galvanoplastics is a kind of accurate physical process method, has very high accuracy of repetition and repeatable accuracy, has been successfully applied to the manufacturing of electron device, microwave device, rocket engine parts, edm electrode etc.But galvanoplastics itself also exists some defectives and limitation, as in the electroforming process, having hydrogen separates out from cathode surface, and be trapped in cathode surface with the form of bubble, hinder metal deposition, cause cast(ing) surface defectives such as pit, pin hole to occur, the physics of electroformed layer, mechanical property are descended.In addition, because the influence of point discharge effect, the electroformed layer surface easily produces defectives such as buildup, stress, causes the electroformed layer lack of homogeneity, and whole sedimentation velocity descends.The existence of these problems has seriously hindered the raising of electroforming process technology integral level and application and the development of galvanoplastics.
Around these problems, the technician has carried out long-term exploration both at home and abroad, has proposed to have in a large number the solution of engineering effect.The SHVAB of Ukraine (Mass transfer in fluidized beds of inert particles[J] .Journal of Applied Electrochemistry, 2000,30:1285-1298) inert particle is introduced in the electrolytic solution, form effects such as collision, friction, disturbance at cathode plane in order to the mobile drive inert particle with electrolytic solution, obtained that mass transfer effect significantly strengthens, the diffusion layer positively effect of attenuate and the further refinement of crystal grain significantly.The patent No. is that the Chinese invention patent of CN 101871108 A discloses a kind of " electrolyte vacuum boiling type high speed electro-deposition method and device ", this method proposes to place vacuum environment to implement depositing operation, can discharge bubble fast, reduce needle pore defect, prevent that harmful oxide compound from generating, and obtained good effect.If inert particle is added in the electrolytic solution of above-mentioned vacuum boiling type galvanic deposit, in order to effects such as the bubble blasting impact in the usefulness electrolytic solution surface boiling process, suctions, the inert particle that equally also can drive wherein forms effects such as collision, friction, disturbance, thereby further promotes operational characteristic and the quality of electrolyte vacuum boiling electro-deposition techniques.But conventional electric deposition device and existing electrolyte vacuum boiling electric deposition device all can not satisfy the service requirements that contains inert particle in the electrolytic solution.Therefore the needs exploitation is a kind of can be applicable to the vacuum surface boiling electric deposition device that contains inert particle in the electrolytic solution.
Summary of the invention
The utility model purpose is to provide a kind of device for the electrolyte vacuum boiling electro-deposition method that contains inert particle in the electrolytic solution, with further increase sedimentation velocity, promotes the deposition layer quality.
For addressing the above problem, the utility model is achieved through the following technical solutions.
A kind of vacuum boiling electric deposition device, comprise the electro-deposition system of being formed by negative electrode, anode, electrolytic solution and airtight galvanic deposition cell and the circulation of elecrolyte filtering system of being formed by recycle pump, programable editing machine PLC, flow control valve, fine filter and primary filter net, and contain nonconducting inert particle in the described electrolytic solution, described recycle pump is two way variable displacement pump.
Density and the density of electrolyte of the inert particle in the described electrolytic solution are close, and both density differences are no more than ± and 5%.Inert particle density is suspended state near density of electrolyte in electrolytic solution, be conducive to the even distribution of inert particle.
The particle diameter of the inert particle in the described electrolytic solution is between 0.5～1.2 mm.The inert particle diameter is too small, and then inert particle disperses bad in electrolytic solution; Diameter is excessive, and then inert particle and negative electrode collision frequency descend, to the perturbation action decline of diffusion layer; When the inert particle diameter was between 0.5～1.2 mm, inert particle evenly distributes in electrolytic solution, and was best to the diffusion layer perturbation action.
The volume content of inert particle in electrolytic solution contained in the described electrolytic solution is 5%～10%.The volume content of inert particle is excessive, then can increase resistance, causes the power line distortion, influences the settled layer quality; Too small then inert particle and diffusion layer collision reduce, and the disturbance effect descends.
Inert particle in the described electrolytic solution is the particle-like substance of acid-alkali-corrosive-resistings such as bioglas, Resins, epoxy (no filler) particle, particulate polyvinyl chloride.
Described primary filter screen distance is than little 50～100 μ m of inert particle particle diameter in the electrolytic solution, is prepared from by the material of acid-alkali-corrosive-resisting, as terylene net, nylon wire, stainless (steel) wire etc., is installed in airtight galvanic deposition cell inner side-wall and covers liquid inlet and outlet.Can prevent effectively that like this inert particle from by the primary filter net, entering recycle pump, influence the works better of pump.
Described two way variable displacement pump can be done periodic forward and reverse rotation under programable editing machine PLC programming Control.Because the periodic positive and negative rotation of recycle pump can realize the alternate scour to two primary filter nets, reduce the fluid inlet inert particle in the online absorption of primary filter, prevent from stopping up.
The utility model compared with prior art has the following advantages and outstanding effect.
1. improved sedimentation velocity.When the catholyte vacuum boiling, be accompanied by a large amount of bubble effusions of negative electrode, expansion, explosion, formed impact or suction function during owing to bubble eruption certainly will drive the inert particle motion.On the one hand, because the violent disturbance of inert particle makes concentration of electrolyte be tending towards even; On the other hand, inert particle is constantly done random motion, by collision and friction and disturbance cathode plane diffusion layer, significantly reduce thickness of diffusion layer, increased the concentration of metal ion in the diffusion layer, accelerated the mass transfer in liquid phase process, improve mass-transfer efficiency, and then increased limit current density.
Refinement crystal grain, improve the deposition layer quality.Because the collision of inert particle, friction and leveling effect, can the disturbance crystallisation process, reduce the deposition defective, improve the settled layer surface quality.
Description of drawings
Fig. 1 is the structural representation of a specific embodiment of a kind of vacuum boiling electric deposition device of the utility model.
Among the figure: 1, anode, 2, airtight galvanic deposition cell, 3, the primary filter net, 4, fluid inlet, 5, negative electrode, 6, fine filter, 7, flow control valve, 8, programmable logic controller PLC, 9, recycle pump, 10, fine filter, 11, flow control valve, 12, diffusion layer, 13, primary filter net, 14, liquid outlet, 15, bubble, 16, inert particle, 17, electrolytic solution.
Embodiment
As shown in Figure 1, with the specific examples of electric deposition nickel sheet the utility model is described further below.The concrete operations step is as follows.
(1) anode 1, negative electrode 5 are fixed in the galvanic deposition cell 2, both are horizontally disposed relatively up and down, at a distance of 35 mm, and connect the galvanic deposit power positive cathode respectively.
(2) add in the galvanic deposition cell 2 contain bioglas 16 electrolytic solution 17(wherein in the electrolytic solution 17 volume content of bioglas 16 be 8%, the particle diameter of bioglas 16 is 0.8 mm), then with galvanic deposition cell 2 sealings.
(3) open electrolyte circulation system and other systems (not drawing among the figure), to be seen when reaching stable boiling to negative electrode 5 surface electrolytes 17, unlatching galvanic deposit power supply carries out galvanic deposit.
(4) opening programmable logic controller PLC8 control two way variable displacement pump 9 once turns to every 5 min change.
(5) treating that coating reaches will try to achieve thickness, closes galvanic deposit power supply and other each systems, take out the galvanic deposit part and clean, drying.
Claims (9)
1. vacuum boiling electric deposition device, comprise the electro-deposition system formed by negative electrode (5), anode (1), electrolytic solution (17) and airtight galvanic deposition cell (2) and by recycle pump (9), programable editing machine PLC(8), the circulation of elecrolyte filtering system formed of flow control valve (7,11), fine filter (6,10) and primary filter net (3,13), it is characterized in that: contain nonconducting inert particle (16) in the described electrolytic solution (17); Described recycle pump (9) is two way variable displacement pump.
2. according to the described a kind of vacuum boiling electric deposition device of claim 1, it is characterized in that: the density of the inert particle (16) in the described electrolytic solution (17) is close with electrolytic solution (17) density, and both density differences are no more than ± and 5%.
3. according to the described a kind of vacuum boiling electric deposition device of claim 1, it is characterized in that: the particle diameter of the inert particle (16) in the described electrolytic solution (17) is between 0.5～1.2 mm.
4. according to the described a kind of vacuum boiling electric deposition device of claim 1, it is characterized in that: the volume content of inert particle (16) in electrolytic solution (17) contained in the described electrolytic solution (17) is 5%～10%.
5. according to the described a kind of vacuum boiling electric deposition device of claim 2, it is characterized in that: the inert particle (16) in the described electrolytic solution (17) is the particle-like substance of acid-alkali-corrosive-resistings such as bioglas, Resins, epoxy (no filler) particle, particulate polyvinyl chloride.
6. according to the described a kind of vacuum boiling electric deposition device of claim 1, it is characterized in that: little 50～100 μ m of inert particle (16) particle diameter in described primary filter net (3,13) the aperture ratio electrolytic solution.
7. according to the described a kind of vacuum boiling electric deposition device of claim 1, it is characterized in that: described primary filter net (3,13) is prepared from by the material of acid-alkali-corrosive-resisting, as terylene net, nylon wire, stainless (steel) wire etc.
8. according to the described a kind of vacuum boiling electric deposition device of claim 1, it is characterized in that: described primary filter net (3,13) is installed in airtight galvanic deposition cell (2) inner side-wall and covers liquid inlet and outlet (4,14).
9. according to the described a kind of vacuum boiling electric deposition device of claim 1, it is characterized in that: described two way variable displacement pump (9) can be at programable editing machine PLC(8) do periodic forward and reverse rotation under the programming Control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 201320206292 CN203187762U (en) | 2013-04-23 | 2013-04-23 | Vacuum boiling electrodeposition device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320206292 CN203187762U (en) | 2013-04-23 | 2013-04-23 | Vacuum boiling electrodeposition device |
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| CN203187762U true CN203187762U (en) | 2013-09-11 |
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| CN 201320206292 Expired - Fee Related CN203187762U (en) | 2013-04-23 | 2013-04-23 | Vacuum boiling electrodeposition device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106400094A (en) * | 2016-10-13 | 2017-02-15 | 东北石油大学 | Vacuum electro-deposition reproducing experimental device based on programmable logic controller (PLC) control |
-
2013
- 2013-04-23 CN CN 201320206292 patent/CN203187762U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106400094A (en) * | 2016-10-13 | 2017-02-15 | 东北石油大学 | Vacuum electro-deposition reproducing experimental device based on programmable logic controller (PLC) control |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130911 Termination date: 20140423 |