CN102426923A - Manufacturing method of electrode foil used in high pressure on plateau - Google Patents
Manufacturing method of electrode foil used in high pressure on plateau Download PDFInfo
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- CN102426923A CN102426923A CN2011102376415A CN201110237641A CN102426923A CN 102426923 A CN102426923 A CN 102426923A CN 2011102376415 A CN2011102376415 A CN 2011102376415A CN 201110237641 A CN201110237641 A CN 201110237641A CN 102426923 A CN102426923 A CN 102426923A
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Abstract
The invention relates to a manufacturing method of an electrode foil used in a high pressure on a plateau. The method is characterized by: firstly, dipping a corrosion foil in pure water; then performing first grade formation; performing second grade formation; and performing high temperature processing; then performing post-formation; performing polarized processing; and then performing the post-formation. The method comprises the following steps: dipping the corrosion foil in the pure water at a temperature of 89-91 DEG C for 5-18 minutes; performing the first grade formation in a water solution of 0.05%-2.0% of ammonium adipate and 0.005%-0.05% of mannitol or sorbitol or citraconicacid at the temperature of 60-85 DEG C; performing the second grade formation in the water solution of 0.05%-2% of ammonium adipate and 1%-10% of boric acid at the temperature of 60-85 DEG C; performing the high temperature processing at the temperature of 350-500 DEG C; performing the post-formation in the water solution of 1%-10% of the boric acid at the temperature of 60-85 DEG C; finally performing the polarized processing and the post-formation. By using the method of the invention, Product quality defects caused by a low boiling point, such as poor bending and a low specific volume, can be overcome. Usage requirement of a capacitor can be fully satisfied.
Description
Technical field
The present invention relates to the manufacturing of electric elements; It is a kind of manufacturing approach of capacitor; Specifically, be a kind of with electrochemical method form the fine and close oxide-film of one deck at aluminium foil surface, as the manufacturing approach of the electrode foil for aluminum electrolytic capacitors of the working media of capacitor.
Background technology
In 2300～2500 meters factories that do not make electrode foil for aluminum electrolytic capacitors of height above sea level, main cause was that its specific volume of electrode foil and the bending of producing are obviously less in the past.
Summary of the invention
It is low to the present invention seeks to solve the low specific volume of electrode foil that causes of plateau boiling point, the shortcoming of bending difference.
The present invention is the technical scheme below the employing that addresses the above problem:
High pressure of the present invention is characterized in that with the manufacturing approach of electrode foil on the plateau: earlier etched foil is flooded in pure water, one-level changes into then, and then secondary changes into, and carries out high-temperature process again, changes into after then, and polarization is handled again, changes into after then.
Described high pressure is characterized in that with the manufacturing approach of electrode foil on the plateau: etched foil is flooded at pure water, is to get etched foil in 89～91 ℃ pure water, to flood 5～18 minutes.
Described high pressure is characterized in that with the manufacturing approach of electrode foil on the plateau: one-level changes in the aqueous solution of 60～85 ℃ of the sweet mellow wine of 0.05～2.0% ammonium adipate and 0.005～0.05% or sorbierite or the acid of stubborn health carries out.
Described high pressure is characterized in that with the manufacturing approach of electrode foil on the plateau: secondary changes in the aqueous solution of 60～85 ℃ of the boric acid of 0.05%～2% ammonium adipate and 1～10% and carries out.
Described high pressure is characterized in that with the manufacturing approach of electrode foil on the plateau: high-temperature process is heat-treated under 350～500 ℃ high temperature.
Described high pressure is characterized in that with the manufacturing approach of electrode foil on the plateau: after change into processing and in the aqueous solution of 60～85 ℃ of 1～10% boric acid, carry out.
Described high pressure is characterized in that with the manufacturing approach of electrode foil on the plateau: last polarization handle with after change into, be in 0.5～10% and 40～70 ℃ phosphoric acid, to handle 1～8 minute, change into processing after carrying out again.
Described high pressure is characterized in that with the manufacturing approach of electrode foil on the plateau: it is sweet mellow wine or sorbierite or the acid of stubborn health that said one-level changes into inorganic agent.
High pressure is characterized in that with the manufacturing approach of electrode foil on the plateau:
The one-level condition of changing into is current density 50mA/cm
2, voltage 320V, the time is 25 minutes;
The secondary condition of changing into is current density 50mA/cm
2, voltage 580V, the time is 35 minutes;
The condition of changing into is current density 50mA/cm at last
2, voltage 580V, the time is 15 minutes.
Beneficial effect of the present invention: overcome that the low product quality defect-bending that causes of boiling point is poor, specific volume is low, can fully satisfy the instructions for use of capacitor; The pure water impregnation process of electrode foil generally can not impact product quality more than 95 ℃, can cause below 92 ℃ that specific volume of electrode foil is low, bending is poor.
Embodiment
Below in conjunction with specific embodiment the present invention is done further explain.
Embodiment one
The high pressure of excessive erosion of learning from else's experience is used aluminium foil, and purity is 99.99%, and dipping is 15 minutes in 89-91 ℃ pure water; Then in the aqueous solution of 85 ℃ in the sweet mellow wine of 1.5% ammonium adipate and 0.02% with current density 50mA/cm
2, voltage 320V changed into 25 minutes; Then in the aqueous solution of 85 ℃ of the boric acid of 0.5% ammonium adipate and 3% with current density 50mA/cm
2, voltage 580V changed into 35 minutes: then high-temperature process was handled in 3 minutes, and temperature is 500 ℃; Change into current density 50mA/cm after in the aqueous solution of 85 ℃ of 6% boric acid, carrying out then
2, voltage 580V, the time is 15 minutes; In 3.5% and 60 ℃ phosphoric acid, handle after 2 minutes; Change into current density 50mA/cm after carrying out in the aqueous solution that boric acid with 6% is 85 ℃
2, voltage 580V, the time is 15 minutes.
Embodiment two
The high pressure of excessive erosion of learning from else's experience is used aluminium foil, and purity is 99.99%, and dipping is 15 minutes in 89-91 ℃ pure water; Then in the aqueous solution of 82 ℃ in the sweet mellow wine of 1.8% ammonium adipate and 0.02% with current density 50mA/cm
2, voltage 320V changed into 25 minutes; In the aqueous solution that ammonium adipate 0.5% and 1.5% boric acid are 82 ℃ with current density 50mA/cm
2, voltage 580V changed into 35 minutes; Then high-temperature process was handled in 3 minutes, and temperature is 500 ℃; Change into current density 50mA/cm after in the aqueous solution of 82 ℃ of 3% boric acid, carrying out then
2, voltage 580V, the time is 15 minutes; In 4.5% and 60 ℃ phosphoric acid, handle after 5 minutes; Change into current density 50mA/cm after carrying out in the aqueous solution that boric acid with 3% is 82 ℃
2, voltage 580V, the time is 15 minutes.
Embodiment three
The high pressure of excessive erosion of learning from else's experience is used aluminium foil, and purity is 99.99%, and dipping is 10 minutes in 89-91 ℃ pure water; Then in the aqueous solution of 75 ℃ of the sorbierites of 1.2% ammonium adipate and 0.03% with current density 50mA/cm
2, voltage 320V changed into 25 minutes; In the aqueous solution that ammonium adipate 0.5% and 4.5% boric acid are 75 ℃ with current density 50mA/cm
2, voltage 580V changed into 35 minutes; Then high-temperature process was handled in 3 minutes, and temperature is 500 ℃; Change into current density 50mA/cm after in the aqueous solution of 75 ℃ of 8% boric acid, carrying out then
2, voltage 580V, the time is 15 minutes; In 6.5% and 60 ℃ phosphoric acid, handle after 5 minutes; Change into current density 50mA/cm after carrying out in the aqueous solution that boric acid with 8% is 75 ℃
2, voltage 580V, the time is 15 minutes.
Embodiment four
The high pressure of excessive erosion of learning from else's experience is used aluminium foil, and purity is 99.99%, and dipping is 16 minutes in 89-91 ℃ pure water; Then in the aqueous solution of 80 ℃ of the stubborn health acid of 1.2% ammonium adipate and 0.01% with current density 50mA/cm
2, voltage 320V changed into 25 minutes; In the aqueous solution that ammonium adipate 0.5% and 2.5% boric acid are 80 ℃ with current density 50mA/cm
2, voltage 580V changed into 35 minutes; Then high-temperature process was handled in 3 minutes, and temperature is 500 ℃; Change into current density 50mA/cm after in the aqueous solution of 80 ℃ of 5% boric acid, carrying out then
2, voltage 580V, the time is 15 minutes; In 6.5% and 60 ℃ phosphoric acid, handle after 3 minutes; Change into current density 50mA/cm after carrying out in the aqueous solution that boric acid with 5% is 80 ℃
2, voltage 580V, the time is 15 minutes.
Comparative example
Get the same etched foil with embodiment one, dipping is 15 minutes in 89-91 ℃ pure water; Then in the aqueous solution of 85 ℃ of 1.5% ammonium adipates with current density 50mA/cm
2, voltage 320V changed into 25 minutes; In the aqueous solution that ammonium adipate 0.5% and 3% boric acid are 85 ℃ with current density 50mA/cm
2, voltage 580V changed into 35 minutes; Then high-temperature process was handled in 3 minutes, and temperature is 500 ℃; Change into processing, current density 50mA/cm after in the aqueous solution of 85 ℃ of 6% boric acid, carrying out then
2, voltage 580V, the time is 15 minutes; In 3.5% and 60 ℃ phosphoric acid, handle after 2 minutes; Change into processing, current density 50mA/cm after carrying out in the aqueous solution that boric acid with 6% is 85 ℃
2, voltage 580V, the time is 15 minutes.
Claims (9)
1. a high pressure is characterized in that with the manufacturing approach of electrode foil on the plateau: earlier etched foil is flooded in pure water, one-level changes into then, and then secondary changes into, and carries out high-temperature process again, changes into after then, and polarization is handled again, changes into after then.
2. high pressure according to claim 1 is characterized in that with the manufacturing approach of electrode foil on the plateau: etched foil is flooded at pure water, is to get etched foil in 89～91 ℃ pure water, to flood 5～18 minutes.
3. high pressure according to claim 1 is characterized in that with the manufacturing approach of electrode foil on the plateau: one-level changes in the aqueous solution of 60～85 ℃ of the sweet mellow wine of 0.05～2.0% ammonium adipate and 0.005～0.05% or sorbierite or the acid of stubborn health carries out.
4. high pressure according to claim 1 is characterized in that with the manufacturing approach of electrode foil on the plateau: secondary changes in the aqueous solution of 60～85 ℃ of the boric acid of 0.05%～2% ammonium adipate and 1～10% and carries out.
5. high pressure according to claim 1 is characterized in that with the manufacturing approach of electrode foil on the plateau: high-temperature process is heat-treated under 350～500 ℃ high temperature.
6. high pressure according to claim 1 is characterized in that with the manufacturing approach of electrode foil on the plateau: after change in the aqueous solution of 60～85 ℃ of 1～10% boric acid and carry out.
7. high pressure according to claim 1 is characterized in that with the manufacturing approach of electrode foil on the plateau: last polarization handle with after change into, be in 0.5～10% and 40～70 ℃ phosphoric acid, to handle 1～8 minute, change into after carrying out again.
8. high pressure according to claim 1 is characterized in that with the manufacturing approach of electrode foil on the plateau: it is sweet mellow wine or sorbierite or the acid of stubborn health that said one-level changes into inorganic agent.
According to claim 1 high pressure with the manufacturing approach of electrode foil on the plateau, it is characterized in that:
The one-level condition of changing into is current density 50mA/cm
2, voltage 320V, the time is 25 minutes;
The secondary condition of changing into is current density 50mA/cm
2, voltage 580V, the time is 35 minutes;
The condition of changing into is current density 50mA/cm at last
2, voltage 580V, the time is 15 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102376415A CN102426923A (en) | 2011-08-18 | 2011-08-18 | Manufacturing method of electrode foil used in high pressure on plateau |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102376415A CN102426923A (en) | 2011-08-18 | 2011-08-18 | Manufacturing method of electrode foil used in high pressure on plateau |
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| CN102426923A true CN102426923A (en) | 2012-04-25 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1667767A (en) * | 2005-04-05 | 2005-09-14 | 江苏中联科技集团有限公司 | Method for manufacturing electrode foil for high-voltage long-life aluminum electrolytic capacitor |
| CN101425389A (en) * | 2008-07-29 | 2009-05-06 | 东莞市东阳光电容器有限公司 | Aluminum electrolysis capacitor anode foil manufacturing method |
| CN101483101A (en) * | 2008-12-25 | 2009-07-15 | 佛山市三水日明电子有限公司 | 125 DEG C high temperature long life aluminum electrolysis capacitor, production method thereof and special electrolysis liquid |
| CN101707142A (en) * | 2009-11-18 | 2010-05-12 | 横店集团东磁股份有限公司 | Formation method for increasing hydration-proof performance of electrode foil for aluminum electrolytic capacitor |
-
2011
- 2011-08-18 CN CN2011102376415A patent/CN102426923A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1667767A (en) * | 2005-04-05 | 2005-09-14 | 江苏中联科技集团有限公司 | Method for manufacturing electrode foil for high-voltage long-life aluminum electrolytic capacitor |
| CN101425389A (en) * | 2008-07-29 | 2009-05-06 | 东莞市东阳光电容器有限公司 | Aluminum electrolysis capacitor anode foil manufacturing method |
| CN101483101A (en) * | 2008-12-25 | 2009-07-15 | 佛山市三水日明电子有限公司 | 125 DEG C high temperature long life aluminum electrolysis capacitor, production method thereof and special electrolysis liquid |
| CN101707142A (en) * | 2009-11-18 | 2010-05-12 | 横店集团东磁股份有限公司 | Formation method for increasing hydration-proof performance of electrode foil for aluminum electrolytic capacitor |
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Application publication date: 20120425 |
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