CN102074433A - Method for corroding ultrathin electrode foil of high-pressure energy-saving lamp - Google Patents
Method for corroding ultrathin electrode foil of high-pressure energy-saving lamp Download PDFInfo
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- CN102074433A CN102074433A CN 201010563625 CN201010563625A CN102074433A CN 102074433 A CN102074433 A CN 102074433A CN 201010563625 CN201010563625 CN 201010563625 CN 201010563625 A CN201010563625 A CN 201010563625A CN 102074433 A CN102074433 A CN 102074433A
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Abstract
The invention provides a method for corroding an ultrathin electrode foil of a high-pressure energy-saving lamp, comprising the following steps of pretreatment, primary pit etching, secondary pit enlarging corrosion, post treatment, and drying. In the primary pit etching step, the foil is placed in a high-temperature mixing liquid, applied direct current with low current density and subjected to electrolytic corrosion for a long time; and an etching solution is a mixing liquid of mixing hydrochloric acid with high hydrochloric acid content and high acidity with sulfuric acid; in the secondary pit enlarging corrosion step, the treated foil is placed in a high-temperature inhibiter and applied large current; and a pit enlarging solution adopts a nitric acid system with high acidity. The ultrathin electrode foil for the high-pressure energy-saving lamp has the advantages of good strength, even hole density and large aperture. After the electrode foil is corroded by high voltage, the bending intensity is good, breakage does not occur after the foil is folded at 180 degrees, tg delta is small, the pressure rising time of a hydration-resistant experiment is short, and the 590 vf specific volume of the formed foil can still reach 0.38-0.42mu F/cm<2>.
Description
One, technical field
The present invention relates to electrode foil corrosion technology field, particularly a kind of high-voltage energy-saving lamp ultrathin electrodes foil corrosion method.
Two, background technology
Electronic energy-saving lamp has advantages such as unique energy saving, high colour developing, high light efficiency and long-life, is widely used in illuminations such as factory, market, hotel and family, and market prospects are boundless.For being applied to the aluminium electrolytic capacitor of high-voltage energy-saving lamp key components, electrode foil is a most important component in the capacitor, requirement has characteristics such as high strength, low-loss, long-life, anti-hydrability are strong, low-leakage current, and this just requires corresponding corrosive aluminum foil to have high strength, thickness is ultra-thin, hole density is even, the aperture is thick characteristics.The aluminium foil of thin specification is directly adjusted with existing etching process and is occurred aluminium foil surface when parameter is produced easily and peel off seriously the tiny or excessive corrosion in aperture, shortcomings such as undercapacity.Therefore, on industrial production, when using electrode foil, need corresponding etching process with the aluminium foil production high-voltage energy-saving lamp of thin specification.
Three, summary of the invention
The objective of the invention is to overcome the technical disadvantages of existing etching process, provide a kind of usefulness 80 μ m specification aluminium foils to prepare the etching process of high-voltage energy-saving lamp with the ultrathin electrodes paper tinsel, make that corroding electrode paper tinsel intensity is good, hole density is even, the aperture is big, the 590vf specific volume reaches 0.38～0.42 μ F/cm simultaneously
2
For achieving the above object, the technical solution used in the present invention is: a kind of high-voltage energy-saving lamp caustic solution of ultrathin electrodes paper tinsel comprises the steps and reprocessing, drying steps:
1.1 pre-treatment
It is that 80～88 ℃ one-level corrosion is sent out in the overflowing liquid of hole and soaked 60～150 seconds that aluminium foil is placed on temperature,
1.2 the hole is sent out in the one-level corrosion
It is 75～88 ℃ that the paper tinsel of pre-treatment is placed on temperature, contains in the mixed liquor of 1.5～6.3wt% hydrochloric acid and 20～32wt% sulfuric acid, and applying current density is 120～250mA/cm
2Direct current carried out electrolytic corrosion 90～180 seconds,
1.3 secondary corrosion reaming
The paper tinsel of crossing in the hole is sent out in one-level corrosion, and to be placed on temperature be 65～75 ℃, contains the corrosion inhibiter of 6.5～15wt% nitric acid and 0.15～0.9g/L, and applying current density is 90～160mA/cm
2Direct current carried out electrolytic corrosion 480～600 seconds.
Described reprocessing is that the salpeter solution of putting into 60～90 ℃ through the paper tinsel of reaming was handled 90 seconds, cleans up through pure water again.
Described aluminium foil is the ultra-thin aluminium foil of 80 μ m specifications.
Good effect of the present invention is:
The corroding electrode paper tinsel intensity that adopts the method for the invention to obtain is good, hole density is even, the aperture is big; It is good that the corroding electrode paper tinsel forms back bending intensity with high voltage, doubling 180 degree non-cracking phenomenons, and tg δ is little, and water-fast experiment weak point pressure rising time that closes forms paper tinsel 590vf specific volume and still can reach 0.38～0.42 μ F/cm
2
Four, description of drawings
Fig. 1 is embodiments of the invention 2 corroding electrode paper tinsel surface electronic microscope scintigrams.
Fig. 2 is the embodiment 4 corroding electrode paper tinsel surface electronic microscope scintigrams of existing etching process.
Embodiment
Below by specific embodiment technical scheme of the present invention is described further.
A kind of high-voltage energy-saving lamp of the present invention comprises the steps: that with the caustic solution of ultrathin electrodes paper tinsel the hole is sent out in pre-treatment, one-level corrosion, secondary corrodes reaming, reprocessing, drying.Its concrete steps are as follows:
(1) pre-treatment: it is that 80～88 ℃ one-level corrosion is sent out in the overflowing liquid of hole and soaked 60～150 seconds that aluminium foil is placed on temperature.
(2) hole is sent out in one-level corrosion: it is 75～88 ℃ that the paper tinsel of pre-treatment is placed on temperature, contains in the mixed liquor of 1.5～7.3wt% hydrochloric acid and 20～32wt% sulfuric acid, and applying current density is 120～250mA/cm
2Direct current carried out electrolytic corrosion 90～180 seconds.
(3) secondary corrosion reaming: the paper tinsel of crossing in the hole is sent out in the one-level corrosion, and to be placed on temperature be 65～75 ℃, contains 6.5～15wt% nitric acid and 0.15～0.9g/L corrosion inhibiter, and applying current density is 90～160mA/cm
2Direct current carried out electrolytic corrosion 480～600 seconds.
(4) reprocessing: will put into 60～90 ℃ salpeter solution through the paper tinsel of reaming and handle 90 seconds, and clean up through pure water again.
(5) drying: will put 150～200 ℃ oven 180 seconds into through the paper tinsel that pure water cleans up.
Embodiment 1
Earlier aluminium foil is put into pretreatment liquid and soaked 90 seconds, once corrosion is sent out the hole and is passed to 150mA/cm
2Current processing 130 seconds, clean up with pure water and to put into anticaustic liquid again and pass to 160mA/cm
2Current processing 480 seconds, again paper tinsel is put into 70 ℃ salpeter solution and was handled 90 seconds, clean up the back oven dry with pure water then, carry out 590vf and form and handle test paper tinsel sample performance.
Embodiment 2
Earlier aluminium foil is put into pretreatment liquid and soaked 150 seconds, once corrosion is sent out the hole and is passed to 120mA/cm
2Current processing 180 seconds, clean up with pure water and to put into anticaustic liquid again and pass to 115mA/cm
2Current processing 540 seconds, again paper tinsel is put into 60 ℃ salpeter solution and was handled 90 seconds, clean up the back oven dry with pure water then, carry out 590vf and form and handle test paper tinsel sample performance.
Embodiment 3
Earlier aluminium foil is put into pretreatment liquid and soaked 60 seconds, once corrosion is sent out the hole and is passed to 250mA/cm
2Current processing 90 seconds, clean up with pure water and to put into anticaustic liquid again and pass to 90mA/cm
2Current processing 600 seconds, again paper tinsel is put into 90 ℃ salpeter solution and was handled 90 seconds, clean up the back oven dry with pure water then, carry out 590vf and form and handle test paper tinsel sample performance.
Embodiment 4
Use existing etching process, earlier aluminium foil is put into pretreatment liquid and soaked 120 seconds, again the paper tinsel of pre-treatment is placed on temperature and is 70～79 ℃ and once send out and apply current density 300mA/cm in the liquid of hole
2Current processing 60 seconds, clean up with pure water that to put into temperature again be that 80～90 ℃ of anticaustic liquid pass to 80mA/cm
2Current processing 600 seconds, again paper tinsel is put into 60～90 ℃ nitric acid aftertreatment fluid and was handled 90 seconds, clean up the back oven dry with pure water then, carry out 590vf and form and handle test paper tinsel sample performance.
Etching process of the present invention and existing etching process contrast and experiment are following (to change into condition: 10% boric acid, 90 ℃, 0.05A/cm
2, Vfe=590V):
Adopt as can be seen from contrast and experiment that the corroding electrode paper tinsel aperture that etching process of the present invention works it out is big, hole density is even, after the corroding electrode paper tinsel formed through 590v, tg δ value is little, water-fast closed that experiment is lacked pressure rising time, bending intensity is good.
Claims (2)
1. a high-voltage energy-saving lamp ultrathin electrodes foil corrosion method comprises reprocessing and drying steps, it is characterized in that this caustic solution also comprises the steps:
1.1 pre-treatment
It is that 80～88 ℃ one-level corrosion is sent out in the overflowing liquid of hole and soaked 60～150 seconds that aluminium foil is placed on temperature,
1.2 the hole is sent out in the one-level corrosion
It is 75～88 ℃ that the paper tinsel of pre-treatment is placed on temperature, contains in the mixed liquor of 1.5～6.3wt% hydrochloric acid and 20～32wt% sulfuric acid, and applying current density is 120～250mA/cm
2Direct current carried out electrolytic corrosion 90～180 seconds,
1.3 secondary corrosion reaming
The paper tinsel of crossing in the hole is sent out in one-level corrosion, and to be placed on temperature be 65～75 ℃, contains the corrosion inhibiter of 6.5～15wt% nitric acid and 0.15～0.9g/L, and applying current density is 90～160mA/cm
2Direct current carried out electrolytic corrosion 480～600 seconds.
2. high-voltage energy-saving lamp ultrathin electrodes foil corrosion method according to claim 1 is characterized in that, described aluminium foil is the ultra-thin aluminium foil of 80 μ m specifications.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010105636250A CN102074433B (en) | 2010-11-29 | 2010-11-29 | Method for corroding ultrathin electrode foil of high-pressure energy-saving lamp |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010105636250A CN102074433B (en) | 2010-11-29 | 2010-11-29 | Method for corroding ultrathin electrode foil of high-pressure energy-saving lamp |
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| CN102074433A true CN102074433A (en) | 2011-05-25 |
| CN102074433B CN102074433B (en) | 2012-06-13 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109243828A (en) * | 2018-11-13 | 2019-01-18 | 江苏国瑞科技有限公司 | A kind of caustic solution of Ultra-low Specific volume anode aluminum foil |
| CN109554746A (en) * | 2018-12-26 | 2019-04-02 | 乳源瑶族自治县东阳光化成箔有限公司 | A kind of preparation method of high-voltage high specific capacitance etched foil |
| CN110289171A (en) * | 2019-05-14 | 2019-09-27 | 乳源瑶族自治县东阳光化成箔有限公司 | A kind of manufacturing method of without phosphorus reaming aluminum electrolytic capacitor electrode foil |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0198668A (en) * | 1987-10-13 | 1989-04-17 | Hitachi Chem Co Ltd | Resin composition |
| EP0603622A1 (en) * | 1992-12-22 | 1994-06-29 | Matsushita Electric Industrial Co., Ltd. | Thin-film transistor array and method of fabricating the same |
| US5674780A (en) * | 1995-07-24 | 1997-10-07 | Motorola, Inc. | Method of forming an electrically conductive polymer bump over an aluminum electrode |
-
2010
- 2010-11-29 CN CN2010105636250A patent/CN102074433B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0198668A (en) * | 1987-10-13 | 1989-04-17 | Hitachi Chem Co Ltd | Resin composition |
| EP0603622A1 (en) * | 1992-12-22 | 1994-06-29 | Matsushita Electric Industrial Co., Ltd. | Thin-film transistor array and method of fabricating the same |
| US5674780A (en) * | 1995-07-24 | 1997-10-07 | Motorola, Inc. | Method of forming an electrically conductive polymer bump over an aluminum electrode |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109243828A (en) * | 2018-11-13 | 2019-01-18 | 江苏国瑞科技有限公司 | A kind of caustic solution of Ultra-low Specific volume anode aluminum foil |
| CN109554746A (en) * | 2018-12-26 | 2019-04-02 | 乳源瑶族自治县东阳光化成箔有限公司 | A kind of preparation method of high-voltage high specific capacitance etched foil |
| CN109554746B (en) * | 2018-12-26 | 2020-08-04 | 乳源瑶族自治县东阳光化成箔有限公司 | Method for manufacturing high-pressure high-specific-volume corrosion foil |
| CN110289171A (en) * | 2019-05-14 | 2019-09-27 | 乳源瑶族自治县东阳光化成箔有限公司 | A kind of manufacturing method of without phosphorus reaming aluminum electrolytic capacitor electrode foil |
| CN110289171B (en) * | 2019-05-14 | 2021-10-01 | 乳源瑶族自治县东阳光化成箔有限公司 | Method for manufacturing non-phosphorus hole-expanding aluminum electrolytic capacitor electrode foil |
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| CN102074433B (en) | 2012-06-13 |
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Inventor after: Song Hongzhou Inventor after: Cai Xiaoyu Inventor after: Lu Yajun Inventor after: Xiong Chuanyong Inventor before: Song Hongzhou Inventor before: Cai Xiaoning Inventor before: Lu Yajun Inventor before: Xiong Chuanyong |
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Effective date of registration: 20220810 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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