FLUX FOR SOLDERING BY EXTRA QUICK SOLDERS Russian patent published in 2013 - IPC B23K35/363 

FIELD: process engineering.

SUBSTANCE: invention may be used in soldering and tinning nickel alloys, stainless and carbon steels by extra quick solders. Said solders represent tin-, indium- and bismuth-based alloys with soldering temperature below or equal to 140°C. Flux for soldering comprises the following components at the following ratio, wt %: oxalic acid - 1-62.5, amine hydrohalide - 0.2-12.5, glycerin - 20-98.3, water making the rest.

EFFECT: simple production of flux, available and cheap components, no toxic or carcinogenic substances.

4 tbl