SOLDERING FLUX, METHOD OF ITS MAKING AND ARTICLES MANUFACTURED WITH USE OF THIS FLUX Russian patent published in 1997 - IPC

FIELD: mechanical engineering; soldering of automobile radiators and heat exchange apparatuses. SUBSTANCE: soldering flux contains one or more hydrohalides or hydrophosphates of guanidine or substituted guanidine, or one or more hydrohalides or hydrophosphates of pentaelement nitrogen-bearing heterogeneous ring amine, formula $$$, where x=1 or 2, y=4 or 5, or mixture of indicated compounds of guanidine and heterogeneous ring amine. Flux can contain one or more hydrohalides or hydrophosphates of aliphatic amine selected from group consisting of aliphatic monoamines, formula $$$, and aliphatic diamines, formula $$$, where n=0 - 10, m=5 - 10, R - hydrogen, methyl, propyl, or butyl. EFFECT: improved quality of soldering flux. 16 cl