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Washing-free soldering flux

A flux and organic solvent technology, applied in the field of electronic reagents, can solve problems such as unfavorable long-term use, environmental pollution, strong corrosion, etc., and achieve the effects of safe use, broad market prospects, and stable performance

Inactive Publication Date: 2015-12-09
SUZHOU LOTTE CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing flux generally adopts halogen flux, which has a good fluxing effect, but it is highly corrosive, toxic, and causes great pollution and harm to the environment, which is not conducive to long-term use

Method used

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Embodiment Construction

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0020] Embodiments of the invention include:

[0021] A no-clean flux comprising:

[0022] Rosin 20 parts,

[0023] 20 parts resin,

[0024] 2-3 parts of succinic acid,

[0025] 2-3 parts of glutaric acid,

[0026] 2-3 parts of sebacic acid,

[0027] 2-3 parts of pimelic acid,

[0028] 0.5 parts of corrosion inhibitor,

[0029] 0.5 part of co-solvent,

[0030] 0.5 parts of film-forming agent,

[0031] 50 parts of organic solvent, rosin resin flux instead of traditional halogen flux, and increase the effect o...

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PUM

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Abstract

The invention discloses a washing-free soldering flux which comprises the following components in parts by weight: 20 parts of rosin, 20 parts of resin, 2-3 parts of butanedioic acid, 2-3 parts of glutaric acid, 2-3 parts of sebacic acid, 2-3 parts of pimelic acid, 0.5 part of an anti-corrosive agent, 0.5 part of a co-solvent, 0.5 part of a film forming agent, and 50 parts of an organic solvent. Through the adoption of the scheme, the washing-free soldering flux has the advantages that the solid content is low, oxides are effectively removed, oxidation is prevented, the surface tension of a welding material is reduced, washing is avoided, the service life is long, the performance is stable, the sources are wide, and the use is safe; and the washing-free soldering flux has a wide market prospect in popularization of the washing-free soldering flux.

Description

technical field [0001] The invention relates to the field of electronic reagents, in particular to a no-clean flux. Background technique [0002] Flux is widely used in the field of industrial production. Flux can help and promote the welding process in the welding process. At the same time, it has a protective effect and prevents chemical substances from oxidation reactions. It mainly assists heat conduction, removes oxides, and reduces the surface tension of the material to be welded. It can remove oil stains on the surface of the material to be welded, increase the welding area, and prevent re-oxidation. [0003] The existing flux generally adopts halogen flux, which has a good fluxing effect, but is highly corrosive, toxic, and causes great pollution and harm to the environment, which is not conducive to long-term use. Contents of the invention [0004] The technical problem mainly solved by the present invention is to provide a no-clean flux, by using rosin resin flu...

Claims

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Application Information

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IPC IPC(8): B23K35/362
CPCB23K35/3613B23K35/362
Inventor 杨伟帅
Owner SUZHOU LOTTE CHEM TECH
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