Corrosion electrolysis device for medium and high-voltage anode foil
An electrolytic device and anode foil technology, applied in the field of capacitors, can solve problems such as heating of aluminum foil, and achieve the effects of avoiding heating, saving costs, increasing production costs and management costs
Pending Publication Date: 2020-03-06
DONGGUAN DONGYANG SOLAR SCI RES & DEV CO LTD +1
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Problems solved by technology
[0006] Aiming at the deficiencies in the prior art, the present invention provides a corrosion electrolysis device for medium and high voltage anode foil, which adopts an inverted eight-type structure to change the distance from the graphite electrode to the aluminum foil to obtain attenuation current. By changing the direction of the aluminum foil, the traditional The top-down linkage is changed to the bottom-up linkage, so as to solve the problem of aluminum foil heating and chemical dissolution, and the device has a simple structure and low cost
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[0041] The present invention provides a corrosion electrolysis device for medium and high voltage anode foil, which includes a corrosion tank body 1, a transmission device and a graphite electrode 5, and the graphite electrode 5 is symmetrically arranged in the corrosion tank body 1 in an inverted eight-shaped structure, and constitutes Graphite electrolytic corrosion area 7, the aluminum foil 2 enters the graphite electrolytic corrosion area 7 through the transmission device from bottom to top.
[0042] In some embodiments, the transmission device includes a transmission top roller 3 , a tension roller 4 and a transmission bottom roller 10 .
[0043] Specifically, such as figure 1As shown, a corrosion electrolysis device for medium and high voltage anode foils includes a corrosion tank 1, a transmission top roller 3, a tension roller 4, a graphite electrode 5, a shielding plate 8, a shielding plate 9 and a transmission bottom roller 10, and the graphite electrode 5 is symmet...
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Abstract
The invention provides a corrosion electrolysis device for medium and high-voltage anode foil. The corrosion electrolysis device comprises a corrosion groove body, a transmission device and a graphiteelectrode. The graphite electrode is symmetrically arranged in the corrosion groove body in a V-type structure, and a graphite electrolytic corrosion area is formed. Aluminum foil is linked from bottom to top by the transmission device to enter the graphite electrolytic corrosion area. According to the corrosion electrolysis device, the distance between the graphite electrode and the aluminum foil is changed by adopting the V-type structure, and attenuation current is obtained; by changing the trend of the aluminum foil, traditional from-top-to-bottom linkage is replaced with from-bottom-to-top linkage, so that the problems of aluminum foil heating and chemical dissolution are solved. The corrosion electrolysis device is simple in structure and low in cost.
Description
technical field [0001] The invention belongs to the technical field of capacitors, and in particular relates to a corrosion electrolysis device for medium and high voltage anode foils. Background technique [0002] Medium and high voltage anode foil is a key raw material for the manufacture of aluminum electrolytic capacitors. The production process of anode foil is: light foil-pretreatment-first electrolytic corrosion-second electrolytic corrosion-post-treatment-drying-corrosion foil. Among them, the electrolytic corrosion process uses the graphite plate as the cathode and the high-pressure sulfuric acid foil as the anode, and applies direct current corrosion in the high-temperature acid electrolyte to form a large number of nanostructured tunnel holes, thereby increasing the specific surface area of the aluminum foil. [0003] For example, CN 103745830 A discloses that the use of attenuating current in the process of electrolytic corrosion can effectively improve the co...
Claims
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IPC IPC(8): C25F3/04C25F7/00
CPCC25F3/04C25F7/00
Inventor 肖远龙杨迎亚余凯向云刚何凤荣
Owner DONGGUAN DONGYANG SOLAR SCI RES & DEV CO LTD