CN201326027Y - Aluminum foil electrolytic corrosion circulation device - Google Patents
Aluminum foil electrolytic corrosion circulation device Download PDFInfo
- Publication number
- CN201326027Y CN201326027Y CNU2008202348828U CN200820234882U CN201326027Y CN 201326027 Y CN201326027 Y CN 201326027Y CN U2008202348828 U CNU2008202348828 U CN U2008202348828U CN 200820234882 U CN200820234882 U CN 200820234882U CN 201326027 Y CN201326027 Y CN 201326027Y
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- Prior art keywords
- aluminium foil
- circulation device
- pipe
- electrolytic corrosion
- storage tank
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Abstract
The utility model relates to an aluminum foil electrolytic corrosion circulation device, comprising an electrolytic bath, polar plates, a corrosive liquid store tank and a circulating pump. The two edge side faces of adjoining polar plates are respectively tightly connected with insulating shield plates so as to form internal grooves with a sealed periphery and an opened upper part as well as an opened lower part; the electrolytic bath is internally provided with division boards for dividing groove bodies outside of the internal grooves into upper parts and lower parts; the upper end of the internal grooves are higher than the upper surfaces of the division boards, and the lower end of the internal grooves are lower than the lower surfaces of the division boards; groove liquid output pipe openings are arranged at the wall of the electrolytic bath which is higher than the division boards, and groove liquid input pipe openings are arranged at the wall of the electrolytic bath which is shorter than the division boards; and the output pipe openings are communicated with the corrosive liquid store tank, and the input pipe openings are communicated with the exit of the circulating pump. The circulation device can promote the corrosive liquid groove liquid to evenly circulate, reduces the consistency of the aluminum foil and the corrosion products near the polar plates, does not influence electric current in the process of electrolytic etching, effectively reduces the position deviation of aluminum foil electrostatic capacity, and improves the average electrostatic capacity of aluminum foil.
Description
Technical field
The utility model relates to a kind of chemical industry equipment, and more particularly, the utility model relates to a kind of galvanic corrosion device.
Background technology
The manufacturing processed of electrode foil for aluminum electrolytic capacitors mainly is divided into corrosion and changes into two operations.The main process of corrosion process is that aluminium foil is carried out pre-treatment, burn into aftertreatment in specific corrosive fluid, purpose is to form the great fine hole of quantity at aluminium foil surface, with this increasing specific surface area, thereby improve electrostatic capacity, will guarantee also that simultaneously electrode foil has enough physical strengths.
The aluminium electrolutic capacitor corrosion process of etched foil, general employing galvanic corrosion: the cathode electrode plate that two pairs or more promptly is set in attack solution, battery lead plate connects power cathode, power up roller (or claiming charging roller) and connect positive source, power up roller and directly contact, apply positive electricity to aluminium foil by powering up roller with aluminium foil; Perhaps, power up by indirect electric field: two adjacent electroplax plates connect the two poles of the earth of power supply respectively, allow aluminium foil pass between the battery lead plate.Electrochemical corrosion course carries out electrolytic corrosion to the aluminium foil in the tank liquor, produces a lot of holes on the surface of aluminium foil.
When aluminium foil in corrosion process, produce a lot of corrosion products such as hydrogen, aluminum ion etc., if these materials can not spread in time and mix with the tank liquor other parts, will cause the concentration of aluminium foil, contiguous pole plate place corrosion product higher relatively, and aluminium foil edge part and intermediary tank liquor concentration also can be inhomogeneous, so just cause problems such as the electrostatic capacity deviation is big on the etched foil different positions, mean value is low easily, sell and follow-up capacitor design, make and bring loss to aluminium foil.
In order to address the above problem, the technology that has has been taked a kind of aluminium foil electrolyzing and corroding device, it is on the both sides, position of aluminium foil process, be provided with the shower of level in pairs, each shower vertically on offer spray apertures, the aperture of spray apertures is directed upwardly or the oblique aluminium foil that passes through of subtend.Promote to corrode tank liquor circulation, evenly by corrosive fluid, thereby improve problems such as the electrostatic capacity deviation is big on the different positions of paper tinsel, mean value is low by spray apertures ejection.But, discover by analysis: because different etching processs needs different Faradaic currents, when Faradaic current is big, the electric current that shower can influence this place obviously reduces even blocks the electric current at this place, cause corroding hole and in the process of growth, be interrupted, thus the electrostatic capacity of influence corrosion back aluminium foil.
Summary of the invention
Above-mentioned shortcoming at prior art, the purpose of this utility model is the electrolytic corrosion circulation device that a kind of aluminium foil will be provided, this device has following advantage: can impel the corrosion tank liquor evenly to circulate, reduce the corrosion product concentration of aluminium foil and contiguous pole plate place, but do not influence electric current in the electrolytic corrosion process, thereby effectively reduce the aluminium foil electrostatic capacity position deviation, improve the average electrostatic capacity of aluminium foil.
For this reason, technical solution of the present utility model is a kind of electrolytic corrosion circulation device of aluminium foil, it comprises electrolyzer, in electrolyzer, be provided with the pole plate of bottom roller, conduction, the number of described pole plate is more than 1 pair or 1 pair and the galvanic corrosion passage that forms aluminium foil is set at interval, described pole plate comprises two major opposing sides, two flank side surface, thereby and closely be connected with respectively on two flank side surface of adjacent plate the insulating shielding slab constitute around sealing and the inside groove of upper and lower opening; Be equiped with the division board that the cell body beyond this inside groove is divided into the upper and lower part in the described electrolyzer, this division board is provided with the slit that allows aluminium foil to pass through; The upper end of described inside groove is higher than the upper surface of described division board, and the lower end of described inside groove is lower than the lower surface of described division board; Offer the output mouth of pipe of tank liquor at the cell wall place that is higher than described division board, offer the input mouth of pipe of tank liquor at the cell wall place that is lower than described division board; Described circulation device also comprises corrosive fluid storage tank and recycle pump thereof, and the described output mouth of pipe is being communicated with this corrosive fluid storage tank, and the described input mouth of pipe is being communicated with this outlet of circulating pump, and the inlet of recycle pump is communicated with the corrosive fluid storage tank.
The utility model corrosive cycle device seals the side of two pole plates with shielding slab, form easy interior water jacket structure; And the inside groove height that pole plate and shielding slab form is higher than water jacket, the liquid level top of water jacket installs division board additional, isolate new liquid and old liquid, tank liquor can only enter inside groove from the bottom between the pole plate, overflow from the upper end of pole plate, force and the orderly tank liquor flow direction with regard to forming like this, thereby make the corrosion tank liquor evenly circulate, can effectively reduce the corrosion product concentration of aluminium foil and contiguous pole plate place, simultaneously, because cancelled traditional pole plate intermediary shower, can avoid electric current to be blocked or the electric field disorder, do not influence the electric current in the electrolytic corrosion process; Thereby effectively reduce the aluminium foil electrostatic capacity position deviation, improve the average electrostatic capacity of aluminium foil, solved problems such as limit portion lowly holds, lateral deviation is big, improved specific volume indirectly.Experimental results show that: adopt the utility model corrosive cycle device than traditional circulation device, the aluminium foil electrostatic capacity deviation decline 2-5% that makes, average specific volume improves 1-5%.And with existing some comparison that improves equipment, simple in structure, the handling ease, reliable for effect of the utility model device.
As preferable enforcement structure, the utility model specifically also comprises following improvement:
For improving tank liquor circulation homogeneity:
The upper end of the shielding slab that flank side surface connects is contour and be lower than the upper end of pole plate; The lower end of the shielding slab that flank side surface connects is contour and contour with the lower end of pole plate respectively.
The upper end of described inside groove is higher than the height of the described output mouth of pipe.
Also be communicated with the multiply current-sharing mouth of pipe at described electrolyzer with the interior input mouth of pipe.
The number of the described input mouth of pipe is 2-3, is located at respectively on the cell wall different heights that is lower than described division board.
The height of the described output mouth of pipe is higher than the height of described corrosive fluid storage tank.
In order to make tank liquor temperature, content, component cooperate tank liquor to do evenly circulation better:
Described corrosive fluid storage tank has been set up cool pipeline or heating pipe line, and perhaps, described corrosive fluid storage tank has been set up cool pipeline and heating pipe line.
Be in series with control valve on the pipeline of described corrosive fluid storage tank and recycle pump thereof.
Described corrosive fluid storage tank also is connected with the renewal pipeline that upgrades tank liquor.
The height of the described output mouth of pipe is higher than the height of described corrosive fluid storage tank.
Cause for fear of carry chemical corrosion secretly in twice galvanic corrosion descending and for further increasing the efficient of electrolytic corrosion than electric capacity: the number of described pole plate is 2, and is coated with the shielding slab of isolating electric current on the export-oriented major opposing side of each pole plate, bottom surface; The lower end of described inside groove also is provided with pair of outlet ports tiltedly towards the shower of middle aluminium foil, and electrolyzer is connected with one or two bursts of outlets in the interior input tube and shower.
Below in conjunction with the drawings and specific embodiments the utility model is described further.
Description of drawings
Fig. 1 is structure and the schematic flow sheet of the utility model device embodiment 1.
Fig. 2 is structure and the schematic flow sheet of the utility model device embodiment 2.
Embodiment
Embodiment 1:
As Fig. 1, be depicted as structure and the schematic flow sheet of the utility model device embodiment 1.It comprises electrolyzer 10, powers up roller 20, in electrolyzer 10, be provided with the pole plate 40 of bottom roller 30, conduction, the number of described pole plate 40 is 1 pair and the galvanic corrosion passage that forms aluminium foil A is set at interval, described pole plate 40 comprises two major opposing side 40i, two flank side surface 40j, thereby and closely be connected with respectively on two flank side surface 40j of adjacent plate insulating shielding slab 50 constitute around sealing and the inside groove X of upper and lower opening; And be coated with the shielding slab (not shown) of isolating electric current on the export-oriented major opposing side of each pole plate 40, the bottom surface; The upper end of the shielding slab 50 that flank side surface connects is contour and be lower than the upper end of pole plate 40; The lower end of the shielding slab 50 that flank side surface connects is contour and contour with the lower end of pole plate 40 respectively.
Be equiped with the insulation division board 60 that the tank liquor beyond this inside groove X is divided into the upper and lower part tank liquor in the described electrolyzer 10, this division board 60 is provided with the slit (not detailed showing) that allows aluminium foil A to pass through; The upper end of described inside groove X is higher than the upper surface of described division board 60 and is higher than the height of the described output mouth of pipe 70, and the lower end of described inside groove X is lower than the lower surface of described division board 60.
Offer the output mouth of pipe 70 of tank liquor at the electrolyzer 10 wall places that are higher than described division board 60.Offer the input mouth of pipe 80 of tank liquor at the electrolyzer 10 wall places that are lower than described division board 60; The number of the described input mouth of pipe 80 is 2, is located at respectively on the electrolyzer 10 wall different heights that are lower than described division board 60.Also be communicated with the multiply current-sharing mouth of pipe 81 at described electrolyzer 10 with the interior input mouth of pipe 80.
Described circulation device also comprises corrosive fluid storage tank 90 and recycle pump 91 thereof, and the described output mouth of pipe 70 is being communicated with the upper notch of this corrosive fluid storage tank 90, and the described input mouth of pipe 80 is being communicated with the outlet of this recycle pump 91.Described corrosive fluid storage tank 90 has also been set up self-circulating pump 93, flow valve 94, and the steam heating pipeline comprises vapour pipe 95.Be in series with control valve 96 on the pipeline of described corrosive fluid storage tank 90 and recycle pump 91 thereof.Described corrosive fluid storage tank 90 also is connected with the renewal pipeline that upgrades tank liquor and comprises drain pipe 97, liquid supplementation pipe 98.The height of the described output mouth of pipe 70 is higher than the height of described corrosive fluid storage tank 90 upper notch.
Embodiment 2:
As Fig. 2, be depicted as structure and the schematic flow sheet of the utility model device embodiment 2.Present embodiment 2 primary structure similar embodiment 1, but offer 2 sub-threads input mouths of pipe 80 of bottom tank liquor at the electrolyzer 10 wall different heights places that are lower than described division board 60.The lower end of described inside groove X also is provided with the shower (not shown) of pair of outlet ports towards middle aluminium foil.Electrolyzer is connected with one or two strands in interior input tube outlet (not shown) and shower.Described corrosive fluid storage tank 90 has also been set up the pipeline that cools and has been comprised heat exchanger 92.
Claims (10)
1, a kind of electrolytic corrosion circulation device of aluminium foil, it comprises electrolyzer, in electrolyzer, be provided with the pole plate of bottom roller, conduction, the number of described pole plate is more than 1 pair or 1 pair and the galvanic corrosion passage that forms aluminium foil is set at interval, described pole plate comprises two major opposing sides, two flank side surface, it is characterized in that: constitute sealing all around and the inside groove of upper and lower opening thereby closely be connected with the insulating shielding slab on two flank side surface of adjacent plate respectively; Be equiped with the division board that the cell body beyond this inside groove is divided into the upper and lower part in the described electrolyzer, this division board is provided with the slit that allows aluminium foil to pass through; The upper end of described inside groove is higher than the upper surface of described division board, and the lower end of described inside groove is lower than the lower surface of described division board; Offer the output mouth of pipe of tank liquor at the cell wall place that is higher than described division board, offer the input mouth of pipe of tank liquor at the cell wall place that is lower than described division board; Described circulation device also comprises corrosive fluid storage tank and recycle pump thereof, and the described output mouth of pipe is being communicated with this corrosive fluid storage tank, and the described input mouth of pipe is being communicated with this outlet of circulating pump, and the inlet of recycle pump is communicated with the corrosive fluid storage tank.
2, the electrolytic corrosion circulation device of aluminium foil according to claim 1 is characterized in that: the upper end of the shielding slab that flank side surface connects is contour and be lower than the upper end of pole plate; The lower end of the shielding slab that flank side surface connects is contour and contour with the lower end of pole plate respectively.
3, the electrolytic corrosion circulation device of aluminium foil according to claim 1, it is characterized in that: described corrosive fluid storage tank has been set up cool pipeline or heating pipe line, and perhaps, described corrosive fluid storage tank has been set up cool pipeline and heating pipe line.
4, the electrolytic corrosion circulation device of aluminium foil according to claim 1, it is characterized in that: the upper end of described inside groove is higher than the height of the described output mouth of pipe.
5, the electrolytic corrosion circulation device of aluminium foil according to claim 1 is characterized in that: be communicated with the multiply current-sharing mouth of pipe at described electrolyzer with the interior input mouth of pipe.
6, the electrolytic corrosion circulation device of aluminium foil according to claim 1 is characterized in that: the number of the described input mouth of pipe is 2-3, is located at respectively on the cell wall different heights that is lower than described division board.
7, the electrolytic corrosion circulation device of aluminium foil according to claim 1 is characterized in that: be in series with control valve on the pipeline of described corrosive fluid storage tank and recycle pump thereof.
8, the electrolytic corrosion circulation device of aluminium foil according to claim 1 is characterized in that: described corrosive fluid storage tank is connected with the renewal pipeline that upgrades tank liquor.
9, the electrolytic corrosion circulation device of aluminium foil according to claim 1, it is characterized in that: the height of the described output mouth of pipe is higher than the height of described corrosive fluid storage tank.
10, the electrolytic corrosion circulation device of aluminium foil according to claim 1, it is characterized in that: the number of described pole plate is 2, and is coated with the shielding slab of isolating electric current on the export-oriented major opposing side of each pole plate, bottom surface; The lower end of described inside groove also is provided with pair of outlet ports tiltedly towards the shower of middle aluminium foil, and electrolyzer is connected with one or two bursts of outlets in the interior input tube and shower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202348828U CN201326027Y (en) | 2008-12-09 | 2008-12-09 | Aluminum foil electrolytic corrosion circulation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202348828U CN201326027Y (en) | 2008-12-09 | 2008-12-09 | Aluminum foil electrolytic corrosion circulation device |
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| Publication Number | Publication Date |
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| CN201326027Y true CN201326027Y (en) | 2009-10-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202348828U Expired - Lifetime CN201326027Y (en) | 2008-12-09 | 2008-12-09 | Aluminum foil electrolytic corrosion circulation device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102354623A (en) * | 2011-09-16 | 2012-02-15 | 扬州宏远电子有限公司 | High pressure foil etching apparatus with high-efficient fluid uniform distribution and forced degasification |
| CN105274615A (en) * | 2015-11-25 | 2016-01-27 | 天全君力电子材料有限公司 | Electrode foil etching device |
| CN105578775A (en) * | 2016-01-22 | 2016-05-11 | 浙江理工大学 | Automatic liquid change device and method for corrosion liquid of printed circuit board |
| CN114836816A (en) * | 2022-04-19 | 2022-08-02 | 扬州宏远电子股份有限公司 | Circulating device and method for keeping formed liquid level stable and improving solution uniformity |
-
2008
- 2008-12-09 CN CNU2008202348828U patent/CN201326027Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102354623A (en) * | 2011-09-16 | 2012-02-15 | 扬州宏远电子有限公司 | High pressure foil etching apparatus with high-efficient fluid uniform distribution and forced degasification |
| CN105274615A (en) * | 2015-11-25 | 2016-01-27 | 天全君力电子材料有限公司 | Electrode foil etching device |
| CN105578775A (en) * | 2016-01-22 | 2016-05-11 | 浙江理工大学 | Automatic liquid change device and method for corrosion liquid of printed circuit board |
| CN105578775B (en) * | 2016-01-22 | 2018-10-16 | 浙江理工大学 | A kind of changing liquid automatically device and method of printed circuit board corrosive liquid |
| CN114836816A (en) * | 2022-04-19 | 2022-08-02 | 扬州宏远电子股份有限公司 | Circulating device and method for keeping formed liquid level stable and improving solution uniformity |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091014 |
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| CX01 | Expiry of patent term |