CN1534107A - Annealing method of high voltage electronic aluminium foil product - Google Patents
Annealing method of high voltage electronic aluminium foil product Download PDFInfo
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- CN1534107A CN1534107A CNA031099017A CN03109901A CN1534107A CN 1534107 A CN1534107 A CN 1534107A CN A031099017 A CNA031099017 A CN A031099017A CN 03109901 A CN03109901 A CN 03109901A CN 1534107 A CN1534107 A CN 1534107A
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Abstract
A process for annealing the finished aluminium foil used for high-voltage electronic products includes filling the protecting gas in the annealing furnace until the oxygen content is lower than 0.08%; heating to 250-320 deg.C at 1-12 deg.C/min, holding the temp for 4-15 hr; heating to 500-550 deg.C at 1-12 deg.C/min, holding the temp for 4-15 hr; quickly cooling to 60-120 deg.C and discharging from the furnace. Its advantages are high effect and short time.
Description
Affiliated technical field
The present invention relates to a kind of method for quenching high voltage electronic aluminum foil finished products, belong to rolling, the manufacture field of metal finished product paper tinsel.
Background technology
The heterogeneous microstructure of high voltage electronic aluminum foil directly has influence on the various performances after its corrosion, and the finished products of high voltage electronic aluminum foil is the committed step of its heterogeneous microstructure of control.By finished products, can improve it and { 100} plane texture occupation rate, adjust its grain-size, improve the surface quality of paper tinsel, finally improve the specific volume after the high voltage electronic aluminum foil corrosion.At present, mainly adopt air annealing and vacuum annealing.The high voltage electronic aluminum foil surface film oxide was thicker after air annealed weak point was to anneal, alkali cleaning difficulty when causing corrosion, and residual oxide film is also inhomogeneous after the alkali cleaning, the place that residual oxide film is many is difficult to corrosion, the place that residual oxide film is few is easy to corrosion, so under the certain situation of etching time, can reduce corrosive effect, specific volume is descended.The weak point of vacuum annealing is to avoid the two large problems in air annealing, but annealing time is oversize, is difficult to large-scale industrial production.
Summary of the invention
The present invention is directed to that above-mentioned problems of the prior art provide a kind of and overcome the deficiency of above method for annealing, annealed method for quenching high voltage electronic aluminum foil finished products in protective gas.
The technical solution adopted for the present invention to solve the technical problems is: (1) charges into insured retreat furnace with protective gas, makes the interior oxygen level of stove be lower than 0.08%; (2) furnace temperature rises to 250-320 ℃, is incubated 4-15 hour, and heat-up rate is controlled at 1-12 ℃/minute; (3) furnace temperature rises to 500-550 ℃, is incubated 4-15 hour, and heat-up rate is controlled at 1-12 ℃/minute; (4) machine that blows in is chilled to furnace temperature 60-120 ℃ soon and comes out of the stove.
Described protective gas is nitrogen or other rare gas elementes.The preferred value of above-mentioned parameter is: (1) charges into insured retreat furnace with protective gas, makes the interior oxygen level of stove be lower than 0.05%; (2) furnace temperature rises to 280-300 ℃, is incubated 5-10 hour, and heat-up rate is controlled at 5-10 ℃/minute; (3) furnace temperature rises to 520-540 ℃, is incubated 5-10 hour, and heat-up rate is controlled at 5-10 ℃/minute; (4) machine that blows in is chilled to furnace temperature 80-100 ℃ soon and comes out of the stove.
The invention has the beneficial effects as follows that annealing back aluminium foil surface oxide film approaches, deoils effective; Annealing time is short, can large-scale industrialization production.
Embodiment
Embodiment one:
Charge into protective gas nitrogen in the insured retreat furnace, make in the stove oxygen level be lower than 0.07% → furnace temperature and rise to 250 ℃, 5 hours → furnace temperature of insulation rises to 500 ℃, be incubated 5 hours → and the machine that blows in is chilled to furnace temperature soon and comes out of the stove for 80 ℃.
Above-mentioned two stage heat-up rates are 2 ℃/minute.
Annealing back finished product paper tinsel learns that with the measurement of D5000X x ray diffractometer x { 100} plane texture occupation rate is 95.1%, and specific volume reaches 1.03 μ F/cm under the 375V operating voltage
2
Embodiment two:
Charge into protective gas nitrogen in the insured retreat furnace, make in the stove oxygen level be lower than 0.05% → furnace temperature and rise to 280 ℃, 7.5 hours → furnace temperature of insulation rises to 510 ℃, be incubated 7.5 hours → and the machine that blows in is chilled to furnace temperature soon and comes out of the stove for 90 ℃.
Above-mentioned two stage heat-up rates are 5 ℃/minute.
Annealing back finished product paper tinsel learns that with the measurement of D5000X x ray diffractometer x { 100} plane texture occupation rate is 95.6%, and specific volume reaches 1.03 μ F/cm under the 375V operating voltage
2
Embodiment three:
Charge into protective gas nitrogen in the insured retreat furnace, make in the stove oxygen level be lower than 0.05% → furnace temperature and rise to 300 ℃, 10 hours → furnace temperature of insulation rises to 520 ℃, be incubated 10 hours → and the machine that blows in is chilled to furnace temperature soon and comes out of the stove for 100 ℃.
Above-mentioned two stage heat-up rates are 10 ℃/minute.
Annealing back finished product paper tinsel learns that with the measurement of D5000X x ray diffractometer x { 100} plane texture occupation rate is 96.5%, and specific volume reaches 1.05 μ F/cm under the 375V operating voltage
2, finished product paper tinsel performance is best.
Claims (2)
1. a method for quenching high voltage electronic aluminum foil finished products comprises the steps:
(1) protective gas charges into insured retreat furnace, makes the interior oxygen level of stove be lower than 0.08%;
(2) furnace temperature rises to 250-320 ℃, is incubated 4-15 hour, and heat-up rate is controlled at 1-12 ℃/minute;
(3) furnace temperature rises to 500-550 ℃, is incubated 4-15 hour, and heat-up rate is controlled at 1-12 ℃/minute;
(4) machine that blows in is chilled to furnace temperature 60-120 ℃ soon and comes out of the stove.
2. a kind of method for quenching high voltage electronic aluminum foil finished products according to claim 1 is characterized in that:
(1) protective gas is charged into insured retreat furnace, make the interior oxygen level of stove be lower than 0.05%;
(2) furnace temperature rises to 280-300 ℃, is incubated 5-10 hour, and heat-up rate is controlled at 5-10 ℃/minute;
(3) furnace temperature rises to 520-540 ℃, is incubated 5-10 hour, and heat-up rate is controlled at 5-10 ℃/minute;
(4) machine that blows in is chilled to furnace temperature 80-100 ℃ soon and comes out of the stove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03109901 CN1240869C (en) | 2003-04-02 | 2003-04-02 | Annealing method of high voltage electronic aluminium foil product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03109901 CN1240869C (en) | 2003-04-02 | 2003-04-02 | Annealing method of high voltage electronic aluminium foil product |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1534107A true CN1534107A (en) | 2004-10-06 |
| CN1240869C CN1240869C (en) | 2006-02-08 |
Family
ID=34283266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03109901 Expired - Fee Related CN1240869C (en) | 2003-04-02 | 2003-04-02 | Annealing method of high voltage electronic aluminium foil product |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1240869C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110938768A (en) * | 2019-11-30 | 2020-03-31 | 河南科源电子铝箔有限公司 | High-voltage electronic aluminum foil without generation of coarse grains and preparation method thereof |
| CN111876701A (en) * | 2020-06-29 | 2020-11-03 | 河南科源电子铝箔有限公司 | Finished product annealing method for improving cubic texture of high-voltage anode electronic aluminum foil |
| CN115725915A (en) * | 2022-12-01 | 2023-03-03 | 乳源县立东电子科技有限公司 | Optical foil crystal grain control method and preparation method of anode foil for electrolytic capacitor |
-
2003
- 2003-04-02 CN CN 03109901 patent/CN1240869C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110938768A (en) * | 2019-11-30 | 2020-03-31 | 河南科源电子铝箔有限公司 | High-voltage electronic aluminum foil without generation of coarse grains and preparation method thereof |
| CN110938768B (en) * | 2019-11-30 | 2021-01-22 | 河南科源电子铝箔有限公司 | High-voltage electronic aluminum foil without generation of coarse grains and preparation method thereof |
| CN111876701A (en) * | 2020-06-29 | 2020-11-03 | 河南科源电子铝箔有限公司 | Finished product annealing method for improving cubic texture of high-voltage anode electronic aluminum foil |
| CN115725915A (en) * | 2022-12-01 | 2023-03-03 | 乳源县立东电子科技有限公司 | Optical foil crystal grain control method and preparation method of anode foil for electrolytic capacitor |
| CN115725915B (en) * | 2022-12-01 | 2023-11-17 | 乳源县立东电子科技有限公司 | Optical foil grain control method and preparation method of anode foil for electrolytic capacitor |
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| Publication number | Publication date |
|---|---|
| CN1240869C (en) | 2006-02-08 |
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