CN101645354B - Preparation method of high pressure anode foil for aluminum electrolytic capacitor - Google Patents
Preparation method of high pressure anode foil for aluminum electrolytic capacitor Download PDFInfo
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- CN101645354B CN101645354B CN2009101846365A CN200910184636A CN101645354B CN 101645354 B CN101645354 B CN 101645354B CN 2009101846365 A CN2009101846365 A CN 2009101846365A CN 200910184636 A CN200910184636 A CN 200910184636A CN 101645354 B CN101645354 B CN 101645354B
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Abstract
The invention discloses a preparation method of high pressure anode foil for aluminum electrolytic capacitor, comprising the following steps: alkaline washing, first washing, hole digging, second washing, deep punching by using pure chemical method, third washing, post-processing, washing for many times, drying and coiling. The invention has the advantage of simple flow, less cost and high product quality.
Description
Technical field:
The present invention relates to the production technology of a kind of aluminium electrolytic capacitor with the mesohigh anode foils.
Background technology:
Nowadays, the both sides of every aluminium foil are equipped with electrode foil in the reaming groove in the production line of anode foils, its operation principle is by force to carrying out deep punching and reaming with the aluminium foil of sending out via hole with electrochemistry, but make the hole count on the aluminium foil inconsistent easily, pore size is also different, thereby make the dispersion ratio of aluminium foil specific volume bigger, simultaneously, also easy surface to aluminium foil produces to be destroyed, the surperficial attenuate that causes aluminium foil, the temperature that produces during electrochemical reaction is too high, causes the deterioration in physical properties of aluminium foil, i.e. bending and pulling force reduce.
Summary of the invention:
The objective of the invention is in order to overcome above deficiency, the production technology that a kind of flow process is simple, aluminium electrolytic capacitor that reduce cost, improve the quality of products is used the mesohigh anode foils is provided.
Purpose of the present invention is achieved through the following technical solutions: a kind of aluminium electrolytic capacitor production technology of mesohigh anode foils may further comprise the steps:
A, alkali cleaning: put the paper tinsel machine aluminium foil is sent into the alkaline bath that 500～600L NaOH is housed through floating shelf, the time of alkali cleaning is 80～120S;
B, once washing: the aluminium foil of alkali cleaning enters in the Rinsing Area that 500～600L clear water is housed and once washes, and the time of washing is 80～120S;
C, a hole: once the aluminium foil after the washing enters in the hole slot that electrode foil and 1200L sulfuric acid or hydrochloric acid are housed and sends out the hole, and the temperature when sending out the hole is 75～80 ℃;
D, secondary water washing: the aluminium foil of sending out the hole good enters and carries out secondary water washing in the Rinsing Area that 500～600L clear water is housed, and the time of washing is 80～120S;
E, deeply punching: the aluminium foil after the secondary water washing enters in the reaming groove that nitric acid or hydrochloric acid and macromolecular material are housed the method with pure chemistry and carries out deep punching and reaming, temperature during punching in the reaming groove is 85～90 ℃, the total amount of nitric acid or hydrochloric acid and macromolecular material is 3000L, macromolecular material is PS-5, and PS-5 is a kind of polystyrene material;
F, three washings: the aluminium foil that has openning hole enters and carries out three washings in the Rinsing Area that 500～600L clear water is housed, and the time of washing is 80～120S;
G, reprocessing: the aluminium foil after three washings enters and carries out reprocessing in the treatment trough that nitric acid is housed, and the temperature of reprocessing is 70～75 ℃;
H, repeatedly washing: aluminium foil successively enters in three Rinsing Areas that 500～600L clear water is housed repeatedly wash at least, last aluminium foil enters in the big Rinsing Area that 1000L dechlorination ionized water is housed to be washed, and the time that aluminium foil is washed in each Rinsing Area is 80～120S;
I, oven dry: the aluminium foil that cleans up fully enters in the baking oven of the two poles of the earth and dries, and the temperature of oven dry is 300～350 ℃, and the time of oven dry is 1～3 hour;
J, coiling: the aluminium foil semi-finished product after the oven dry enter to receive in the paper tinsel machine through floating shelf and reel.
The present invention compared with prior art has the following advantages: adopt the pure chemistry reaction, be not easy to produce and the hole phenomenon, pore size, depth basically identical make the dispersion ratio of product less; Surface to aluminium foil is difficult for producing big destruction, has guaranteed the thickness of aluminium foil; The aluminium foil surface heating temp is lower, thereby has guaranteed the physical property of aluminium foil.
Embodiment:
In order to deepen the understanding of the present invention, the invention will be further described below in conjunction with embodiment, and this embodiment only is used to explain the present invention, do not constitute the qualification to protection range of the present invention.
Aluminium electrolytic capacitor of the present invention a kind of embodiment of the production technology of mesohigh anode foils, may further comprise the steps: alkali cleaning: put the paper tinsel machine aluminium foil is sent into the alkaline bath that 500～600L NaOH is housed through floating shelf, the time of alkali cleaning is 80～120S, mainly is the greasy dirt that cleans on the aluminium foil; Once washing: the aluminium foil of alkali cleaning enters in the Rinsing Area that 500～600L clear water is housed and once washes, and the time of washing is 80～120S; Send out the hole: once the aluminium foil after the washing enters in the hole slot that electrode foil and 1200L sulfuric acid or hydrochloric acid are housed and sends out the hole, and the temperature when sending out the hole is 75～80 ℃, sends out the hole with electrochemical method; Secondary water washing: the aluminium foil of sending out the hole good enters and carries out secondary water washing in the Rinsing Area that 500～600L clear water is housed, and the time of washing is 80～120S; Deeply punching: the aluminium foil after the secondary water washing enters in the reaming groove that nitric acid or hydrochloric acid and macromolecular material are housed the method with pure chemistry and carries out deep punching and reaming, its principle is exactly to carry out deep punching and reaming along the hole that a hole slot has been sent out with the method for pure chemistry, temperature during punching in the reaming groove is 85～90 ℃, the total amount of nitric acid or hydrochloric acid and macromolecular material is 3000L, macromolecular material is PS-5, PS-5 is a kind of polystyrene material, with macromolecular material the aluminium foil surface that is corroded is protected, alleviate the corrosion of nitric acid or hydrochloric acid, reach the effect of the expansion aluminium foil base maximum area of the best the aluminium foil primary surface; Three washings: the aluminium foil that has openning hole enters and carries out three washings in the Rinsing Area that 500～600L clear water is housed, and the time of washing is 80～120S; Reprocessing: the aluminium foil after three washings enters and carries out reprocessing in the treatment trough that nitric acid is housed, and the temperature of reprocessing is 70～75 ℃, removes the chloride ion on the aluminium foil; Repeatedly washing: aluminium foil successively enters in three Rinsing Areas that 500～600L clear water is housed repeatedly wash at least, last aluminium foil enters in the big Rinsing Area that 1000L dechlorination ionized water is housed to be washed, the time that aluminium foil is washed in each Rinsing Area is 80～120S, and purpose is thoroughly to remove chloride ion; Oven dry: the aluminium foil that cleans up fully enters in the baking oven of the two poles of the earth and dries, and the temperature of oven dry is 300～350 ℃, and the time of oven dry is 1～3 hour, is for aluminium foil can thoroughly be dried with the two poles of the earth baking oven; Reel: the aluminium foil semi-finished product after the oven dry enter to receive in the paper tinsel machine through floating shelf and reel.
Flow process of the present invention is few, the equipment of using is few, the equipment input cost is half of other conventional equipment, process the material of using of every square metre of aluminium foil, electricity consumptions etc. all are less than other general equipment, adopt the pure chemistry reaction in the reaming groove among the present invention, the product of producing is not easy to produce and the hole phenomenon, pore size, depth basically identical, make the dispersion ratio of product less, surface to aluminium foil is difficult for producing big destruction, has guaranteed the thickness of aluminium foil, and the aluminium foil surface heating temp is lower, thereby guaranteed the physical property of aluminium foil, and no matter be that physical index or chemical index all meet and exceed domestic level, the product of producing through the present invention belongs to first-class at home, belongs to superior product in the world, here the chemical index of mentioning is specific volume and loss, and physical index is bending and pulling force.
Claims (2)
1. an aluminium electrolytic capacitor is characterized in that: may further comprise the steps with the manufacture method of mesohigh anode foils:
A, alkali cleaning: put the paper tinsel machine aluminium foil is sent into the alkaline bath that 500～600L NaOH is housed through floating shelf, the time of alkali cleaning is 80～120S;
B, once washing: the aluminium foil of alkali cleaning enters in the Rinsing Area that 500～600L clear water is housed and once washes, and the time of washing is 80～120S;
C, a hole: once the aluminium foil after the washing enters in the hole slot that electrode foil and 1200L sulfuric acid or hydrochloric acid are housed and sends out the hole, and the temperature when sending out the hole is 75～80 ℃;
D, secondary water washing: the aluminium foil of sending out the hole good enters and carries out secondary water washing in the Rinsing Area that 500～600L clear water is housed, and the time of washing is 80～120S;
E, deeply punching: the aluminium foil after the secondary water washing enters in the reaming groove that nitric acid or hydrochloric acid and polystyrene material are housed the method with pure chemistry and carries out deep punching and reaming, temperature during punching in the reaming groove is 85～90 ℃, and the total amount of nitric acid or hydrochloric acid and polystyrene material is 3000L;
F, three washings: the aluminium foil that has openning hole enters and carries out three washings in the Rinsing Area that 500～600L clear water is housed, and the time of washing is 80～120S;
G, reprocessing: the aluminium foil after three washings enters and carries out reprocessing in the treatment trough that nitric acid is housed, and the temperature of reprocessing is 70～75 ℃;
H, repeatedly washing: aluminium foil successively enters in three Rinsing Areas that 500～600L clear water is housed repeatedly wash at least, last aluminium foil enters in the big Rinsing Area that 1000L dechlorination ionized water is housed to be washed, and the time that aluminium foil is washed in each Rinsing Area is 80～120S;
I, oven dry: the aluminium foil that cleans up fully enters in the baking oven of the two poles of the earth and dries, and the temperature of oven dry is 300～350 ℃, and the time of oven dry is 1～3 hour;
J, coiling: the aluminium foil semi-finished product after the oven dry enter to receive in the paper tinsel machine through floating shelf and reel.
2. according to the manufacture method of the described aluminium electrolytic capacitor of claim 1 with the mesohigh anode foils, it is characterized in that: the polystyrene material in the described step e is PS-5.
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| CN2009101846365A CN101645354B (en) | 2009-08-27 | 2009-08-27 | Preparation method of high pressure anode foil for aluminum electrolytic capacitor |
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| CN2009101846365A CN101645354B (en) | 2009-08-27 | 2009-08-27 | Preparation method of high pressure anode foil for aluminum electrolytic capacitor |
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| CN101645354B true CN101645354B (en) | 2011-01-26 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102061508A (en) * | 2010-12-03 | 2011-05-18 | 浙江丰川电子科技有限公司 | Corrosion covering method of medium and high voltage electrode foil |
| CN104538185A (en) * | 2014-12-19 | 2015-04-22 | 内蒙古新长江矿业投资有限公司 | Middle washing method of anode aluminum foil for electrolytic condenser |
| CN107591247A (en) * | 2017-08-30 | 2018-01-16 | 南通海星电子股份有限公司 | A kind of low contact resistance low-voltage aluminum electrolytic capacitor electrode foil corrosion method |
| CN113235023B (en) * | 2021-05-10 | 2022-05-31 | 广西正润新材料科技有限公司 | Low-voltage electronic aluminum foil for capacitor and preparation process thereof |
| CN113235024B (en) * | 2021-05-10 | 2022-05-31 | 广西正润新材料科技有限公司 | Annealing method in production of medium-high voltage electronic aluminum foil for high-capacity high-strength capacitor |
| CN117275956B (en) * | 2023-09-22 | 2024-04-02 | 惠州市冠业新材料科技有限公司 | Processing method of super capacitor current collector aluminum foil and product thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101250744A (en) * | 2008-02-27 | 2008-08-27 | 横店集团东磁有限公司 | Method for erosion of supervoltage high specific volume anode foil |
| CN101483102A (en) * | 2009-01-08 | 2009-07-15 | 横店集团东磁有限公司 | Anode aluminum corrosion method for media and high voltage aluminum electrolysis capacitor |
| CN101483103A (en) * | 2009-01-08 | 2009-07-15 | 横店集团东磁有限公司 | Corrosion method for aluminum electrolysis capacitor anode foil |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101250744A (en) * | 2008-02-27 | 2008-08-27 | 横店集团东磁有限公司 | Method for erosion of supervoltage high specific volume anode foil |
| CN101483102A (en) * | 2009-01-08 | 2009-07-15 | 横店集团东磁有限公司 | Anode aluminum corrosion method for media and high voltage aluminum electrolysis capacitor |
| CN101483103A (en) * | 2009-01-08 | 2009-07-15 | 横店集团东磁有限公司 | Corrosion method for aluminum electrolysis capacitor anode foil |
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