Analysis of the flux from the heat and preparation method and the tin-tin alloy

The present invention relates to a self-analysis and preparation method heat flux tin and tin alloys, the raw material composition and percentages are by weight: heavy metal fluoride active agent 10 to 15%; multi-hydroxyethyl amine and / or hydroxymethyl amine salts of hydrofluoric acid of 80 to 87%; 3-5% alcohol solvent. Analysis of the flux from the present invention provides a poor activity abandoned fluoroborate, while the use of perfluorinated higher activity as an active agent, and in order to be able to dissolve the perfluorinated, with the use of multiple high activity organic amine salts of hydrofluoric acid is hydroxymethyl matrix, this matrix is ​​not only acts as a carrier, but also completely free flux inactive filler.