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A flux and electronic technology, applied in the field of chemical materials, can solve the problems of high sales price, high cost, increased process, etc., to achieve the effect of no strong irritating odor, prevention of re-oxidation, and full and smooth solder joints
Inactive Publication Date: 2018-08-14
SUZHOU RUINAIJIE ELECTRONICS SCI & TECH NEW MATERIAL
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Abstract
Description
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Problems solved by technology
The flux is corrosive to electronic components and directly affects the quality of electronic products. During soldering, because rosin volatilizes at high temperature, the smell is very strong, which affects the health of operators. Rosin residue is left on the surface, and it needs to be cleaned, which increases the process
Someone once invented NCF no-cleaning flux, but because it contains camphor in its components, the smell is very strong during welding, and there are still traces of flux after welding. High, the sales price is expensive, so that this kind of flux cannot be widely used
Method used
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Embodiment 1
[0047] The parts by weight of each raw material in the described electronic flux are:
[0048] Rosin 15-30 parts;
[0049] 12-18 parts of citric acid;
[0050] 10-15 parts of hydrochloric acid;
[0051] 3-5 parts of film-forming agent;
[0052] Antioxidant 2-3 parts;
[0053] 8-12 parts of organic solvent;
[0054] 0.5 parts of deionized water.
Embodiment 2
[0056] The parts by weight of each raw material in the described electronic flux are:
[0057] Rosin 20-28 parts;
[0058] 14-16 parts of citric acid;
[0059] 12-14 parts of hydrochloric acid;
[0060] 3.5-4.5 parts of film-forming agent;
[0061] Antioxidant 2.5 parts;
[0062] 10-12 parts of organic solvent;
[0063] 0.5 parts of deionized water.
[0064] In summary, the electronic soldering flux of the present invention has plump and smooth solder joints, is non-toxic, has no strong irritating smell, basically does not pollute the environment, is safe to operate, has a significant effect on preventing reoxidation during welding, and improves the quality of welding.
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Abstract
The invention discloses one type of electronic soldering flux. The electronic soldering flux comprises the following raw materials, by weight, 13 parts to 33 parts of rosin, 11 parts to 19 parts of citric acid, 8 parts to 16 parts of hydrochloric acid, 2 parts to 6 parts of filmogen, 1.5 parts to 3.5 parts of antioxidants, 6 parts to 14 parts of organic solvent, and 0.5 part of deionized water. The electronic soldering flux is full and smooth in welding spot, non-toxic and free of strong pungent smell, basically causes no pollution to the environment, and is safe to operate and remarkable in reoxidation resistance during welding, and the quality of welding is improved.
Description
technical field [0001] The invention relates to the industry of chemical materials, in particular to an electronic flux. Background technique [0002] Flux is usually a mixture of rosin as the main component, which is an auxiliary material to ensure the smooth progress of the soldering process. Welding is the main process in electronic assembly. Flux is an auxiliary material used in welding. The main function of flux is to remove the oxides on the surface of the solder and the base material to be welded, so that the metal surface can reach the necessary cleanliness. It prevents re-oxidation of the surface during soldering, reduces the surface tension of the solder, and improves soldering performance. The quality of flux performance directly affects the quality of electronic products. [0003] In recent decades, in the soldering process of electronic products, fluxes are generally used, although they have good solderability and low cost, but have high post-soldering residue...
Claims
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Application Information
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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/363
CPCB23K35/3612B23K35/3613B23K35/362
Inventor 杨伟帅
Owner SUZHOU RUINAIJIE ELECTRONICS SCI & TECH NEW MATERIAL
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