CN201092590Y - Capacitor aluminum foil etching device - Google Patents
Capacitor aluminum foil etching device Download PDFInfo
- Publication number
- CN201092590Y CN201092590Y CNU2007201721370U CN200720172137U CN201092590Y CN 201092590 Y CN201092590 Y CN 201092590Y CN U2007201721370 U CNU2007201721370 U CN U2007201721370U CN 200720172137 U CN200720172137 U CN 200720172137U CN 201092590 Y CN201092590 Y CN 201092590Y
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- aluminium foil
- pole plate
- electrolyzer
- shower
- spray
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Abstract
The utility model relates to an etching device for aluminum foils of capacitors, which comprises an electrolysis bath, spray pipes and lateral insulation boards, wherein the spray pipes parallel arranged in pairs on bilateral sides of the position by which the aluminum foil passes in an electrochemical etching passage, each spray pipe is provided with spray holes in longitudinal direction, orifices of the spray holes are up-oriented or diagonally opposite to the aluminum foil passing through, each insulation board is formed by mutually connecting insulation lateral boards which are respectively connected with insulation boards on lateral sides of one side of each polar plate, or each lateral insulation board is integrated and separately connected with one lateral side on one certain side of each polar plate, two lateral insulation boards have the same height which is lower than that of the polar plate. The etching device for aluminum foils of capacitors facilitates fluid in an etching bath to be cycling and uniform, reduces concentration of the aluminum foil and the corrosion product which is in the position close to the polar plate of the aluminum foil, thereby effectively decreasing position deviation of the electrostatic capacity of the aluminum foil and improving the average electrostatic capacity of the 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 level is corroded aluminium foil is carried out pre-treatment, prime burn in specific corrosive fluid after, purpose is to form the great fine hole of quantity at aluminium foil surface, with this increasing specific surface area, thereby the raising electrostatic capacity will guarantee also that simultaneously electrode foil has enough physical strengths.
The aluminium electrolutic capacitor prime 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.The prime electrochemical corrosion course carries out electrolytic corrosion to the aluminium foil in the tank liquor, makes the surface of aluminium foil produce a lot of tiny darker holes by corrosion; And then carry out reaming by back level corrosion.
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, periodical " oceanology " the 15th volume the 4th periodical December in 1996 has carried a kind of 226 type low pressure paillon foil etching machines, and the way of water jacket is strengthened the tank liquor circulation in wherein adopting, and constructs also relative complex, the equipment cost height.
Summary of the invention
Above-mentioned shortcoming at prior art, the purpose of this utility model is the corrosion device that a kind of capacitor aluminium foil will be provided, this device has following advantage: can impel corrosion tank liquor circulation, even, reduce the corrosion product concentration of aluminium foil and contiguous pole plate place thereof, thereby effectively reduce the position deviation of aluminium foil electrostatic capacity, the average electrostatic capacity of raising aluminium foil.
For this reason, the corrosion device of a kind of capacitor aluminium foil of technical solution of the present utility model, it comprises electrolyzer, in electrolyzer, be provided with bottom roller, the pole plate of 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, a bottom surface, and in the described galvanic corrosion passage, both sides, position in the aluminium foil process, be provided with the shower of level in pairs, each shower vertically on offer spray apertures, the aperture of these spray apertures is directed upwardly or the oblique aluminium foil that passes through of subtend; Described shower is connecting the input tube of spray liquid, and the output tube of spray liquid is located at the top of described electrolyzer or the overflow port place, upper end of electrolyzer, is connected with spray pump and control valve thereof between the output tube of electrolyzer outside, described spray liquid and input tube; Described corrosion device also comprises two side insulcretes, each side insulcrete is to interconnect and form by being connected to insulating arthropleura on every pole plate one flank side surface, perhaps, each side insulcrete is integrally formed and be connected on a certain flank side surface of every pole plate, two side insulcretes contour and its highly be lower than the height of pole plate.
The utility model adopts at aluminium foil through both sides, position, paired and horizontally disposed shower, each shower vertically on offer spray apertures towards aluminium foil, by input tube to the spray liquid of shower input tape pressure, upwards or to the double-edged direction of aluminium foil spray, and the aperture of these spray apertures is directed upwardly or tiltedly the subtend aluminium foil just/anti-two sides; And utilization two side insulcretes suitable highly, that be sealed in the pole plate both sides prevent impurity, strays stream, random liquid flow disturbance, so, the spray liquid that has pressure just can be with the corrosion product of aluminium foil, contiguous pole plate place higher concentration evenly effectively towards rare and upwards take away, thereby the concentration polarization of tank liquor between the reduction pole plate, impel cell liquid to add systemic circulation, improve stability, the consistence of tank liquor from face, reached the purpose that reduces aluminium foil specific volume horizontal position deviation.The etched foil of producing with the utility model device is carried out series of tests: horizontal span is 50cm altogether, at interval property measure 25 different positions samples, the deviation that records electrostatic capacity drops to 5% from traditional 12%.Above testing data proves: the etched foil of the utility model device production has the remarkable advantage that horizontal specific volume anomaly is little, electrostatic capacity is higher relatively, and the high-grade aluminium foil that the utility model device makes will bring very big promotion for follow-up sale and capacitor design, manufacturing.And with existing some comparison that improves equipment, simple in structure, the handling ease, reliable for effect of the utility model device.
The utility model specifically also comprises following improvement:
For the ease of upwards the round-robin tank liquor is in the mixing on cell body top, the vertex of described side insulcrete is under the working level of electrolyzer.
For the lift from bottom to top that utilizes heating liquid increases tank liquor circulation dynamics, the bottom of described electrolyzer also is provided with heat exchange manifold.
In order to increase the even circulating effect of spray: paired described shower is parallel to pole plate side by side.Described spray apertures is one or arranges, and its aperture increases apart from increase with the liquid mouth that comes with shower more.Paired shower equates with the spacing through between the position of aluminium foil.At least two pairs of described showers have been arranged in parallel on the short transverse of described electrolyzer.
Cause in order to avoid simultaneously carrying 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.
In order to reduce the influence to current blocking, and reach preferable circulating effect, described two pairs of showers are wherein a pair of to be arranged on and position that the pole plate bottom is parallel, and another is to the position that is arranged on and the pole plate middle part is parallel.
In order to promote the systemic circulation from bottom to top of tank liquor integral body, be provided with the tank liquor circulation line on cell body, described tank liquor circulation line comprises drain pipe, the liquid-inlet pipe of being located at the electrolyzer bottom of being located at upper part of the electrolytic cell, it is outside and be connected recycle pump and control valve thereof between drain pipe and the liquid-inlet pipe to be located at electrolyzer.
In order to simplify pipeline structure, the drain pipe of the output tube of described spray liquid and described tank liquor circulation line is interconnected, and the input tube of described spray liquid is connected with described shower by the bottom of described electrolyzer.
Below in conjunction with the drawings and specific embodiments the utility model is described further.
Description of drawings
Fig. 1 is the structural representation of conventional apparatus.
Fig. 2 is the schematic flow sheet of the utility model device embodiment.
Fig. 3 is the primary structure synoptic diagram of the utility model device embodiment.
Fig. 4 is that schematic perspective view is amplified in the part of paired shower among Fig. 3.
Fig. 5 is pole plate, the side insulcrete among Fig. 3, the assembling schematic perspective view of shielding slab.
As Fig. 1, be depicted as the structural representation of traditional electrical chemical corrosion device, it comprises electrolyzer 10, above electrolyzer 10, be provided with and power up roller 20, in electrolyzer 10, be provided with pole plate 40, the tank liquor circulation line 50 (comprising chilling spray pump P2, recycle pump P1, heat exchanger etc.) of bottom roller 30, conduction, the number of described pole plate 40 is 2 and the galvanic corrosion passage that forms aluminium foil A is set at interval that two pole plates 40 are faced front or the reverse side of aluminium foil A respectively; It adopts the structure of inside groove 10i, water jacket 10j to strengthen the tank liquor circulation, the structure relative complex, and equipment cost is too high.
Embodiment
As Fig. 2,3,4,5, shown in be respectively the schematic flow sheet, device primary structure synoptic diagram of the utility model device embodiment, the local assembling schematic perspective view that amplifies schematic perspective view and pole plate, side insulcrete, shielding slab of shower in pairs.
The utility model device embodiment comprises electrolyzer 10, above electrolyzer 10, be provided with and power up roller 20, be provided with tank liquor circulation (dotted arrow is represented) pipeline 50 on electrolyzer 10 bodies, described tank liquor circulation line 50 comprises drain pipe 51, the liquid-inlet pipe 52 of being located at electrolyzer 10 bottoms of being located at electrolyzer 10 tops, it is outside and be connected recycle pump 53 and control valve 54 thereof between drain pipe 51 and the liquid-inlet pipe 52 to be located at electrolyzer 10.
In present embodiment electrolyzer 10, be provided with the pole plate 40 of 30,2 conductions of bottom roller, described pole plate comprises two major opposing side 40i, two flank side surface 40j, bottom surface 40k, the number of described pole plate 40 is 2 and the galvanic corrosion passage that forms aluminium foil A is set at interval, and be coated with the side insulcrete 81 that is coated with sealing function on shielding slab 80, the two flank side surface 40j respectively on export-oriented major opposing side 40i, the bottom surface 40k of each pole plate 40, shielding slab 80 and two avris insulcretes 81 fuse.The height of the side insulcrete 81 on pole plate 40 both sides is lower than pole plate 40 height, and under the working level of groove; Thereby the interior of each piece pole plate 40 constitutes front pole plate and reverse side pole plate in the face of front or the reverse side of aluminium foil A respectively to major opposing side 40i.
And in the described galvanic corrosion passage, on the both sides, position of aluminium foil A process, be provided with the shower 60 of 2 pairs of levels in pairs, described two pairs of showers, 60 connections parallel with one another, wherein a pair of being arranged on and parallel position, pole plate 40 bottoms, and another is to being arranged on and parallel position, pole plate 40 middle parts.Paired described shower 60 parallel side by side described front pole plate and reverse side pole plate 40 and equate with the spacing of aluminium foil A through between the position; Each shower 60 vertically on offer row's spray apertures 61 towards aluminium foil, the aperture of these spray apertures 61 is directed upwardly 45 degree and its aperture progressively increases apart from increase with the liquid mouth that comes with shower 60.
Described shower 60 is connecting the input tube 62 of spray liquid (arrow is represented), and the output tube 63 of spray liquid is located at the top of described electrolyzer 10, the output tube 63 of described spray liquid is interconnected with the outlet pipe 52 of described tank liquor circulation line, and the input tube 63 of described spray liquid is connected with described shower 60 by the bottom of described electrolyzer 10.Between the output tube 63 of electrolyzer 10 outsides, described spray liquid and input tube 62, be connected with spray pump 64 and control valve 65 thereof.
The bottom of described electrolyzer 10 also is provided with heat exchange manifold 70.
Claims (10)
1. the corrosion device of a capacitor 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, a bottom surface, it is characterized in that: in the described galvanic corrosion passage, 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 these spray apertures is directed upwardly or the oblique aluminium foil that passes through of subtend; Described shower is connecting the input tube of spray liquid, and the output tube of spray liquid is located at the top of described electrolyzer or the overflow port place, upper end of electrolyzer, is connected with spray pump and control valve thereof between the output tube of electrolyzer outside, described spray liquid and input tube; Described corrosion device also comprises two side insulcretes, each side insulcrete is to interconnect and form by being connected to insulating arthropleura on every pole plate one flank side surface, perhaps, each side insulcrete is integrally formed and be connected on a certain flank side surface of every pole plate, two side insulcretes contour and its highly be lower than the height of pole plate.
2. the corrosion device of capacitor aluminium foil according to claim 1, it is characterized in that: the vertex of described side insulcrete is under the working level of electrolyzer.
3. the corrosion device of capacitor aluminium foil according to claim 1, it is characterized in that: the bottom of described electrolyzer also is provided with heat exchange manifold.
4. the corrosion device of capacitor aluminium foil according to claim 1 is characterized in that: the parallel side by side described pole plate of paired described shower.
5. the corrosion device of capacitor aluminium foil according to claim 1, it is characterized in that: described spray apertures is a row or multi-row, and its aperture increases apart from increase with the liquid mouth that comes with shower.
6. the corrosion device of capacitor aluminium foil according to claim 1, it is characterized in that: paired shower equates with the spacing through between the position of aluminium foil.
7. the corrosion device of capacitor aluminium foil according to claim 1 is characterized in that: be arranged in parallel two pairs of described showers on the short transverse of described electrolyzer at least.
8. as the corrosion device of capacitor aluminium foil as described in the claim 7, it is characterized in that: described two pairs of showers are wherein a pair of to be arranged on and position that the pole plate bottom is parallel, and another is to the position that is arranged on and the pole plate middle part is parallel.
9. the corrosion device of capacitor 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.
10. the corrosion device of capacitor aluminium foil according to claim 1, it is characterized in that: described cell body is provided with the tank liquor circulation line, and described tank liquor circulation line comprises drain pipe, the liquid-inlet pipe of being located at the electrolyzer bottom of being located at upper part of the electrolytic cell, it is outside and be connected recycle pump and control valve thereof between drain pipe and the liquid-inlet pipe to be located at electrolyzer; The drain pipe of the output tube of described spray liquid and described tank liquor circulation line is interconnected, and the input tube of described spray liquid is connected with described shower by the bottom of described electrolyzer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201721370U CN201092590Y (en) | 2007-09-26 | 2007-09-26 | Capacitor aluminum foil etching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201721370U CN201092590Y (en) | 2007-09-26 | 2007-09-26 | Capacitor aluminum foil etching device |
Publications (1)
| Publication Number | Publication Date |
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| CN201092590Y true CN201092590Y (en) | 2008-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNU2007201721370U Expired - Lifetime CN201092590Y (en) | 2007-09-26 | 2007-09-26 | Capacitor aluminum foil etching device |
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| CN (1) | CN201092590Y (en) |
Cited By (8)
| 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 |
| CN104064381A (en) * | 2014-07-21 | 2014-09-24 | 湖北瑞廷电子材料科技有限公司 | Device orienting metal foil |
| CN104846373A (en) * | 2014-02-13 | 2015-08-19 | 深南电路有限公司 | Micro etching processing system and related equipment |
| CN105442016A (en) * | 2015-12-07 | 2016-03-30 | 新疆西部宏远电子有限公司 | Electrolytic cell device for electrode foil formation |
| CN106868579A (en) * | 2017-04-27 | 2017-06-20 | 南通南辉电子材料股份有限公司 | A kind of corrosion hair engaging aperture device for improving aluminium foil corrosion specific volume |
| CN108048899A (en) * | 2017-11-29 | 2018-05-18 | 铜陵兴怡金属材料有限公司 | A kind of low voltage anode foil corrosion device for electrolytic capacitor |
| CN108251889A (en) * | 2017-12-29 | 2018-07-06 | 广西贺州市桂东电子科技有限责任公司 | A kind of aluminium foil is electrolysed powered electrode device |
| CN112064102A (en) * | 2020-09-15 | 2020-12-11 | 扬州宏远电子股份有限公司 | Device and method for improving specific volume uniformity of medium-high voltage etched foil |
-
2007
- 2007-09-26 CN CNU2007201721370U patent/CN201092590Y/en not_active Expired - Lifetime
Cited By (14)
| 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 |
| CN104846373B (en) * | 2014-02-13 | 2017-12-01 | 深南电路有限公司 | Microetch processing system and relevant device |
| CN104846373A (en) * | 2014-02-13 | 2015-08-19 | 深南电路有限公司 | Micro etching processing system and related equipment |
| CN104064381A (en) * | 2014-07-21 | 2014-09-24 | 湖北瑞廷电子材料科技有限公司 | Device orienting metal foil |
| CN104064381B (en) * | 2014-07-21 | 2017-02-08 | 湖北瑞廷电子材料科技有限公司 | Device orienting metal foil |
| CN105442016A (en) * | 2015-12-07 | 2016-03-30 | 新疆西部宏远电子有限公司 | Electrolytic cell device for electrode foil formation |
| CN106868579A (en) * | 2017-04-27 | 2017-06-20 | 南通南辉电子材料股份有限公司 | A kind of corrosion hair engaging aperture device for improving aluminium foil corrosion specific volume |
| CN106868579B (en) * | 2017-04-27 | 2018-12-14 | 南通南辉电子材料股份有限公司 | A kind of corrosion hair engaging aperture device improving aluminium foil corrosion specific volume |
| CN108048899A (en) * | 2017-11-29 | 2018-05-18 | 铜陵兴怡金属材料有限公司 | A kind of low voltage anode foil corrosion device for electrolytic capacitor |
| CN108048899B (en) * | 2017-11-29 | 2019-12-24 | 铜陵兴怡金属材料有限公司 | Low-voltage anode foil corrosion device for electrolytic capacitor |
| CN108251889A (en) * | 2017-12-29 | 2018-07-06 | 广西贺州市桂东电子科技有限责任公司 | A kind of aluminium foil is electrolysed powered electrode device |
| CN108251889B (en) * | 2017-12-29 | 2019-08-09 | 广西贺州市桂东电子科技有限责任公司 | A kind of aluminium foil electrolysis powered electrode device |
| CN112064102A (en) * | 2020-09-15 | 2020-12-11 | 扬州宏远电子股份有限公司 | Device and method for improving specific volume uniformity of medium-high voltage etched foil |
| CN112064102B (en) * | 2020-09-15 | 2023-06-23 | 扬州宏远电子股份有限公司 | Device and method for improving specific volume uniformity of medium-high voltage corrosion foil |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080730 |
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| CX01 | Expiry of patent term |