FLUX FOR SOLDERING ELECTRODES OF BATTERIES ARE MADE FROM LEAD ALLOY Russian patent published in 2017 - IPC B23K35/363 B23K101/36 

FIELD: electricity.

SUBSTANCE: invention can be used in the manufacture of lead-acid batteries, particularly batteries for backup power and dual purpose. The flux contains hydrobromic acid, monoethanolamine, isopropyl alcohol, N-methyl-2-pyrrolidone and adipic acid in the following ratio, wt %: N-Methyl-2-pyrrolidone 35-54, isopropyl alcohol, 5-9, 15-30, adipic acid, hydrobromic acid 40% -s 10-25, monoethanolamine 3-10. By optimally matched qualitative and quantitative content of activators and solvents flux has low volatility and environmental friendliness combined with high economic performance component consumption per unit of storage products.

EFFECT: absence of corrosive reaction products after interaction with oxides of flux on the surface, eliminates the need for additional washing procedures, and brazed constructions respectively wastewater pollution.

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