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5g signal transmitter capacitor forming foil multi-stage oxidation treatment process and its production line

A signal transmitter, oxidation treatment technology, used in capacitors, capacitor manufacturing, electrolytic capacitors, etc., to achieve the effects of large ripple current resistance, low leakage, and low leakage rate

Active Publication Date: 2021-09-24
新疆金泰新材料技术股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing filter multi-stage oxidation treatment process and equipment cannot meet this requirement

Method used

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  • 5g signal transmitter capacitor forming foil multi-stage oxidation treatment process and its production line
  • 5g signal transmitter capacitor forming foil multi-stage oxidation treatment process and its production line
  • 5g signal transmitter capacitor forming foil multi-stage oxidation treatment process and its production line

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] An embodiment of the capacitor forming foil multi-stage oxidation treatment process, the specific implementation steps are as follows:

[0036] (1) Pretreatment: Put the corroded aluminum foil with a purity of 99.99wt% in pure water at a temperature of 97°C for 12 minutes;

[0037] (2) Primary formation: immerse the pretreated aluminum foil in an aqueous solution containing 1wt% phosphoric acid, 5wt% oxalic acid, and 4wt% ammonium dihydrogen phosphate, and form it under the conditions of 85°C, 10mA / cm2, and 120V for 6 minutes;

[0038] (3) Secondary formation: immerse the aluminum foil after primary formation in an aqueous solution containing 0.5wt% phosphoric acid, 2wt% oxalic acid, and 2wt% ammonium dihydrogen phosphate, and form under the conditions of 85°C, 10mA / cm2, and 250V for 6 minutes ;

[0039] (4) Tertiary formation: immerse the aluminum foil after the secondary formation in an aqueous solution containing 3wt% boric acid, 0.5wt% ammonium dihydrogen phosphate...

Embodiment 2

[0044] Different from Embodiment 1, another embodiment of the capacitor formation foil multi-stage oxidation treatment process, the specific implementation steps are as follows:

[0045] (1) Pretreatment: Put corroded aluminum foil with a purity of 99.99wt% in pure water at a temperature of 98°C for 9 minutes;

[0046] (2) Primary formation: immerse the pretreated aluminum foil in an aqueous solution containing 2.5wt% phosphoric acid, 3wt% oxalic acid, and 3wt% ammonium dihydrogen phosphate, and form it under the conditions of 86°C, 8mA / cm2, and 123V for 6.5min ;

[0047] (3) Secondary formation: immerse the aluminum foil after primary formation in an aqueous solution containing 1wt% phosphoric acid, 3wt% oxalic acid, and 3wt% ammonium dihydrogen phosphate, and form under the conditions of 86°C, 8mA / cm2, and 245V for 6.5min ;

[0048] (4) Tertiary formation: immerse the aluminum foil after the secondary formation in an aqueous solution containing 5wt% boric acid, 1wt% ammoni...

Embodiment 3

[0053] Different from Embodiment 1, another embodiment of the capacitor formation foil multi-stage oxidation treatment process, the specific implementation steps are as follows:

[0054] (1) Pretreatment: Put corroded aluminum foil with a purity of 99.99wt% in pure water at a temperature of 96.5°C for 10 minutes;

[0055] (2) Primary formation: immerse the pretreated aluminum foil in an aqueous solution containing 2wt% phosphoric acid, 4wt% oxalic acid, and 5wt% ammonium dihydrogen phosphate, and form it at 87°C, 9mA / cm2, and 126V for 7 minutes;

[0056] (3) Secondary formation: immerse the aluminum foil after primary formation in an aqueous solution containing 0.6wt% phosphoric acid, 2wt% oxalic acid, and 2.5wt% ammonium dihydrogen phosphate, and form under the conditions of 87°C, 9mA / cm2, and 255V 7min;

[0057] (4) Tertiary formation: immerse the aluminum foil after secondary formation in an aqueous solution containing 3wt% boric acid, 0.5wt% ammonium dihydrogen phosphate ...

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Abstract

The invention discloses a 5G signal transmitter capacitor forming foil multi-stage oxidation treatment process and a production line thereof. The process includes at least one-stage forming, two-stage forming, three-stage forming, four-stage forming, and five-stage forming five-stage forming processes of aluminum foil, wherein : Both primary and secondary formation are carried out in an aqueous solution containing oxalic acid, phosphoric acid and ammonium dihydrogen phosphate; tertiary formation is carried out in an aqueous solution containing ammonium dihydrogen phosphate, boric acid and ammonium pentaborate. Both the quaternary formation and the 5th formation are carried out in an aqueous solution containing boric acid and ammonium pentaborate. The first-level to fifth-level chemical formation processes of the production line are carried out in their corresponding liftable tanks, which shortens the man-hours for changing product specifications, and can easily change the reaction time between aluminum foil and the oxidation in the liftable tank. The equipment is easy to operate, saves time and effort, saves energy, and improves the performance parameters of the product, and produces a capacitor that meets the technical requirements of the 5G signal transmitter, and the cost is low.

Description

technical field [0001] The invention relates to the field of multi-stage oxidation treatment device and process technology of an aluminum foil production line for aluminum electrolytic capacitors, in particular to the multi-stage oxidation treatment process for forming aluminum capacitors for 5G signal transmitters into foil. Background technique [0002] At present, the production lines of the known electrolytic oxidation reaction tanks for aluminum foil dedicated to aluminum electrolytic capacitors all adopt the original fixed production line, use different voltage specifications and different vehicle speeds, and control the reaction time between aluminum foil and electrolytic reaction oxygen. To replace or increase or decrease the cathode plate needs to stop production, which will increase the production man-hours and delay the production. If the plate is not adjusted, the energy consumption will be increased and power resources will be wasted. [0003] For filtering on 5...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01G9/055H01G13/00
CPCH01G9/055H01G13/00
Inventor 陈宇锋严民夏鹏飞
Owner 新疆金泰新材料技术股份有限公司
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