CN202898591U - Graphite electrode reverse power-up impurity removing device for electronic aluminum foil etching - Google Patents
Graphite electrode reverse power-up impurity removing device for electronic aluminum foil etching Download PDFInfo
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- CN202898591U CN202898591U CN 201220638328 CN201220638328U CN202898591U CN 202898591 U CN202898591 U CN 202898591U CN 201220638328 CN201220638328 CN 201220638328 CN 201220638328 U CN201220638328 U CN 201220638328U CN 202898591 U CN202898591 U CN 202898591U
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Abstract
The utility model discloses a graphite electrode reverse power-up impurity removing device for electronic aluminum foil etching. A graphite electrode is subjected to reverse powering-up, i.e. an anode of a power supply is connected with the graphite electrode, a cathode of the power supply is connected with an aluminum foil through a conduction roll, and thus impurity ions attached to the graphite electrode can be detached; tank liquor is hydrochloric acid liquor of which the concentration is 0.4-1.4 mol/L, the current is 100-600 A, the processing time is 2-10 min, and a control mode of an electrolyzed power supply is a constant current mode; and a defective etched foil or a plain foil on which oil stain is already removed can be used for cleaning the graphite electrode, and the defective etched foil or the plain foil can be repeatedly used. The method of reverse powering-up is suitable for all electrochemical etch tanks of a medium-high pressure electronic foil, and the electrochemical etch tanks comprise a primary direct-current electrolytic etching electrolytic tank, a second direct-current electrolytic etching electrolytic tank and the like.
Description
Technical field
The utility model relates to a kind of electronic aluminum foil corrosion Graphite Electrodes removal of impurity technical field, and particularly a kind of electronic aluminum foil corrosion oppositely powers up deimpurity device with Graphite Electrodes, is applicable to the Cress of corrosion Graphite Electrodes in the mesohigh electric aluminum foil industry.
Background technology
The electrolytic corrosion process of mesohigh electric aluminum foil, normal power-up mode are that positive source connects conductive rollers, and conductive rollers contacts with aluminium foil; Negative pole connects Graphite Electrodes.Aluminium foil is anode in the electrolyzer, and losing electronics, to change aluminum ion into oxidized; Graphite Electrodes is negative electrode, and hydrogen ion obtains electronics at the Graphite Electrodes place and is reduced generation hydrogen, electrochemical reaction that aluminium foil is corroded that Here it is.Because tank liquor is introduced foreign ion unavoidably in the production process, such as positively charged ions such as cupric ion, ferrous ion, iron ion, zine ion and lead ions, they are constantly adsorbed by Graphite Electrodes to movable cathode.When but the Graphite Electrodes adsorptive power reaches capacity, these foreign ions will remain in the tank liquor, not only pollute etched foil, and hinder normally carrying out of corrosion reaction.The microbattery reaction is being carried out on the etched foil surface in a large number, and it is excessive to cause easily corrosion, and the etched foil bending is low, and attenuate is serious, and it is low to weigh, and brings disadvantageous effect to production run.Therefore, it is necessary the foreign ion of Graphite Electrodes absorption being processed.
Summary of the invention
The utility model constantly raises for corrosion tank liquor impurity concentration and causes the defective of etched foil degradation, provides a kind of electronic aluminum foil corrosion oppositely to power up deimpurity device with Graphite Electrodes.
The utility model is to be achieved through the following technical solutions above-mentioned purpose: a kind of electronic aluminum foil corrosion oppositely powers up deimpurity device with Graphite Electrodes, comprise aluminium foil, the conduction rod, Graphite Electrodes and oppositely add electrolyser, described Graphite Electrodes connects the positive pole of electrolysis power, and conductive rollers connects the negative pole of electrolysis power, conductive rollers and aluminium foil close contact, oppositely adding in the electrolyser, aluminium foil is negative electrode, and Graphite Electrodes is anode.
Described aluminium foil adopts substandard products etched foil or the light paper tinsel of wipe oil, and all can reuse.
Described electronic aluminum foil corrosion oppositely powers up deimpurity device with Graphite Electrodes, oppositely add in the electrolyser described, it is tank liquor that the 0.4-1.4mol/L hydrochloric acid soln is housed, electric current 100-600A, treatment time 2-10min, the electrolysis power control mode is the current stabilization pattern.
Oppositely power up the whole galvanic corrosion grooves that are applicable to mesohigh electronic aluminum foil corrosion technique, contain dc electrolysis etching tank, secondary dc electrolysis etching tank and three dc electrolysis etching tanks etc.
The utility model is for the high problem that causes the etched foil degradation of Graphite Electrodes absorption foreign matter content, and first passage oppositely powers up, and tank liquor is selected the 0.4-1.4mol/L hydrochloric acid soln, and the recycling aluminium foil, and Graphite Electrodes is processed.After the Graphite Electrodes removal of impurity cleaning, can reduce the excessive situation of corrosion that occurs, the raising etched foil improves paper tinsel face outward appearance than electric capacity, and then saves cost, increases productivity.
Description of drawings
Fig. 1 is that electronic aluminum foil corrosion described in the utility model oppositely powers up deimpurity apparatus structure synoptic diagram with Graphite Electrodes.
Being labeled as among Fig. 1: aluminium foil 1, conduction rod 2, Graphite Electrodes 3 oppositely adds electrolyser 4.
Embodiment
With Comparative Examples the technical solution of the utility model is described further by the following examples.
Embodiment 1
As shown in Figure 1, electronic aluminum foil corrosion described in the utility model oppositely powers up deimpurity device with Graphite Electrodes, comprise aluminium foil 1, conduction rod 2, Graphite Electrodes 3 and oppositely add electrolyser 4, concrete structure and mode of connection are: described Graphite Electrodes 3 connects the positive pole of electrolysis power, conductive rollers 2 connects the negative pole of electrolysis power, and conductive rollers 2 and aluminium foil 1 close contact are within oppositely adding electrolyser 4, aluminium foil 1 is negative electrode, and Graphite Electrodes 3 is anode.
Described aluminium foil adopts substandard products etched foil or the light paper tinsel of wipe oil, and all can reuse.
Following examples 2 to embodiment 5 oppositely power up deimpurity example for adopting electronic aluminum foil corrosion described in the utility model oppositely to power up deimpurity device with Graphite Electrodes.
Comparative Examples 1
The production-line technique flow process is foil → pre-treatment → washing → one time → three dc electrolysis corrosion → washing → drying → foil closings of dc electrolysis corrosion → washing → secondary dc electrolysis corrosion → washing.
One time dc electrolysis corrosion tank liquor is sulfuric acid and hydrochloric acid mixed solution, chlorine ion concentration 0.5mol/L, sulfate ion concentration 7.5mol/L, aluminium ion concentration 0.8mol/L, 73.5 ℃ of temperature, electric current 7000A.
Secondary dc electrolysis corrosion tank liquor is nitric acid system, nitrate ion concentration 1.9mol/L, hydrogen ion concentration 0.7mol/L, aluminium ion concentration 1.2mol/L, temperature 70 C, electric current 11000A.
Three times dc electrolysis corrosion tank liquor is hydrochloric acid system, chlorine ion concentration 1mol/L, hydrogen ion concentration 0.7mol/L, aluminium ion concentration 0.3mol/L, 82 ℃ of temperature, electric current 500A.
Described electronic aluminum foil corrosion oppositely powers up the control method of deimpurity device with Graphite Electrodes, comprises the steps:
By oppositely powering up 100A, 2min, the technical qualification of tank liquor concentration 0.4mol/L hydrochloric acid, first to once, secondary and three dc electrolysis etching tank Graphite Electrodess all oppositely power up removal of impurity cleaning.Technical process is constant, needn't heat up or cooling to tank liquor.
Venting is processed and is used hydrochloric acid soln, replaces with normal production tank liquor.
Next move embodiment 1, each processing condition and the Comparative Examples 1 of employing all are consistent.
According to China electron trade standard SJ/T 11140-1997 electrode foil for aluminum electrolytic capacitors, test etched foil performance.Wherein, be that etched foil is through obtaining under the 520V formation disposition than capacitance data.
Continuous production was observed paper tinsel sample electrical property and is progressively descended after running for some time, near the level of Comparative Examples 1, and concentration of hydrochloric acid 0.7mol/L, 600A processes 10min.
Embodiment 4
After paper tinsel sample electrical property descended, oppositely powering up the groove tank liquor was 1.0mol/L hydrochloric acid, powers up 500A, processed 4min.
Embodiment 5
Paper tinsel sample electrical property drops near Comparative Examples 1, carries out 300A, 2min and oppositely powers up, and tank liquor is 1.4mol/L hydrochloric acid.
Following table combines the paper tinsel sample performance data of Comparative Examples 1, embodiment 1, embodiment 2, embodiment 3, embodiment 4 and embodiment 5.
As seen from the above table, after employing the utility model oppositely powered up the removal of impurity to Graphite Electrodes, etched foil improved 4.7%-6.4% than electric capacity, weighed and improved 0.87-0.95g/500cm
2, bending improves 2-3 returns, and thickness improves 4.8-5.2 μ m.And embodiment 2 etched foil outward appearances are improved very large, the major defects such as speckle that do not exist Comparative Examples 1 to exist.
Claims (2)
1. an electronic aluminum foil corrosion oppositely powers up deimpurity device with Graphite Electrodes, it is characterized in that, comprise aluminium foil, conduction rod, Graphite Electrodes and oppositely add electrolyser, described Graphite Electrodes connects the positive pole of electrolysis power, conductive rollers connects the negative pole of electrolysis power, and conductive rollers and aluminium foil close contact are oppositely adding in the electrolyser, aluminium foil is negative electrode, and Graphite Electrodes is anode.
2. electronic aluminum foil corrosion according to claim 1 oppositely powers up deimpurity device with Graphite Electrodes, it is characterized in that, described aluminium foil adopts substandard products etched foil or the light paper tinsel of wipe oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220638328 CN202898591U (en) | 2012-11-28 | 2012-11-28 | Graphite electrode reverse power-up impurity removing device for electronic aluminum foil etching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220638328 CN202898591U (en) | 2012-11-28 | 2012-11-28 | Graphite electrode reverse power-up impurity removing device for electronic aluminum foil etching |
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| Publication Number | Publication Date |
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| CN202898591U true CN202898591U (en) | 2013-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220638328 Expired - Lifetime CN202898591U (en) | 2012-11-28 | 2012-11-28 | Graphite electrode reverse power-up impurity removing device for electronic aluminum foil etching |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102995100A (en) * | 2012-11-28 | 2013-03-27 | 广西贺州市桂东电子科技有限责任公司 | Graphite electrode reverse electrification impurity removal device for electronic aluminum foil corrosion and control method thereof |
| CN104716358A (en) * | 2013-12-13 | 2015-06-17 | 中国科学院大连化学物理研究所 | Purification method of graphite material |
-
2012
- 2012-11-28 CN CN 201220638328 patent/CN202898591U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102995100A (en) * | 2012-11-28 | 2013-03-27 | 广西贺州市桂东电子科技有限责任公司 | Graphite electrode reverse electrification impurity removal device for electronic aluminum foil corrosion and control method thereof |
| CN104716358A (en) * | 2013-12-13 | 2015-06-17 | 中国科学院大连化学物理研究所 | Purification method of graphite material |
| CN104716358B (en) * | 2013-12-13 | 2018-04-24 | 中国科学院大连化学物理研究所 | A kind of purification method of graphite material |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220803 Address after: 834034 no.18-032, Industrial Avenue, huyanghe Industrial Park, Xinjiang Uygur Autonomous Region Patentee after: Xinjiang guangtou Guidong Electronic Technology Co.,Ltd. Address before: 542800 No. 39, Jiangbei East Road, Hezhou, the Guangxi Zhuang Autonomous Region Patentee before: GUANGXI HEZHOU GUIDONG ELECTRONIC TECHNOLOGY Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130424 |
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| CX01 | Expiry of patent term |