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Surface polymer remover of electrode needle for tantalum capacitor and method for removing surface polymer of electrode needle for tantalum capacitor

A technology for tantalum capacitors and electrode needles, which is applied in the field of polymer remover and its removal on the surface of electrode needles for tantalum capacitors. It can solve the problems of poor conductivity and increased use costs, and achieve accurate stripping, lower use costs, and faster processing. efficiency effect

Active Publication Date: 2022-01-28
江苏振华新云电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in the existing tantalum capacitor cathode manufacturing process, the surface of the electrode needle is covered with polymers after use, and the conductive effect becomes poor, so it cannot be used continuously. Therefore, the electrode needle needs to be replaced frequently, which increases the cost of use.

Method used

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  • Surface polymer remover of electrode needle for tantalum capacitor and method for removing surface polymer of electrode needle for tantalum capacitor

Examples

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Embodiment 1

[0025] This embodiment discloses a polymer remover on the surface of electrode needles for tantalum capacitors, which includes the following components in parts by weight: 20 parts of softener, 12 parts of surfactant, 24 parts of inorganic acid, 2 parts of coupling agent, and 4 parts of emulsifier share.

[0026] Wherein, the softening agent includes the following raw materials in parts by weight: 30 parts of sodium lauryl sulfate, 10 parts of polyethylene glycol, 5 parts of diethylene glycol monobutyl ether, 1 part of N-methylpyrrolidone, defoamer 0.6 part, the balance is deionized water; Surfactant comprises anionic surfactant and nonionic surfactant that weight ratio is (3:4); Described mineral acid comprises methanesulfonic acid, phosphoric acid, hydrochloric acid, hydrobromic acid , tartaric acid and acetic acid, and proportioned according to the following mass ratio: 20% methanesulfonic acid, 18% phosphoric acid, 6% hydrochloric acid, 12% hydrobromic acid, 12% tartaric a...

Embodiment 2

[0033] This embodiment discloses a polymer remover on the surface of electrode needles for tantalum capacitors. Its formula ratio and preparation method are basically the same as those in Example 1. The only difference is that the remover includes the following components in parts by weight: softener 35 parts, 19 parts of surfactant, 36 parts of inorganic acid, 4 parts of coupling agent, 8 parts of emulsifier.

Embodiment 3

[0035] This embodiment discloses a polymer remover on the surface of electrode needles for tantalum capacitors. Its formula ratio and preparation method are basically the same as those in Example 1. The only difference is that the remover includes the following components in parts by weight: softener 50 parts, 26 parts of surfactant, 48 parts of inorganic acid, 6 parts of coupling agent, 12 parts of emulsifier.

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Abstract

The invention belongs to the technical field of tantalum capacitors, and particularly relates to a method for removing a polymer on the surface of an electrode needle for a tantalum capacitor, which comprises the following steps of: placing the electrode needle of which the surface polymer is to be removed in a soaking tank, adding enough remover into the soaking tank, soaking for 2-6 hours, and naturally airing after soaking; and fixing the naturally air-dried electrode needle on a stepping platform, and demolding the surface of the electrode needle by adopting a laser spot scanning method. The remover comprises the following components in parts by weight: 20-50 parts of a softening agent, 12-26 parts of a surfactant, 24-48 parts of inorganic acid, 2-6 parts of a coupling agent and 4-12 parts of an emulsifier. The defects in the prior art are overcome, the polymer on the surface of the electrode needle is softened through the remover, and then the polymer is removed in a laser spot mode.

Description

technical field [0001] The invention belongs to the technical field of tantalum capacitors, in particular to a polymer remover on the surface of electrode pins for tantalum capacitors and a removal method thereof. Background technique [0002] With the development of electronic technology, various electronic products are developing towards higher frequencies, and improving the high-frequency characteristics of electrolytic capacitors has become a research hotspot. In order to further reduce ESR, organic polymers with high conductivity have been used instead of manganese dioxide as cathode materials for tantalum electrolytic capacitors. This kind of polymer material needs to use chemical polymerization method and electrochemical polymerization method when making tantalum capacitor cathode. The process of electrochemical polymerization uses a large number of electrode needles, so as to achieve the effect of polymer deposition on the surface of tantalum anode block to form poly...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G13/06H01G9/042
CPCH01G13/06H01G9/042
Inventor 荆磊磊华丽王红雷王兴伟潘辰璐朱红俊朱宪德
Owner 江苏振华新云电子有限公司
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