| abstract |
(57) [Summary] [Problem] In a manufacturing method of manufacturing a solder fine powder using an atomizing method in oil, in which a solder is melted in a heated dispersion medium and atomized, mass production is industrially efficient and low cost. Provide system. Kind Code: A1 A molten solder melted in a solder melting tank and a mixture of a particle dispersion medium and a particle coalescence inhibitor prepared in a dispersion medium heating tank are supplied to an atomizer, where dispersion energy is applied. Obtaining a dispersion of molten solder particles, treating the dispersion with a cooling and coagulating device to obtain a dispersion of solid solder particles, treating the dispersion with a solid-liquid separation device to separate solid solder particles, The solid solder particles are washed and dried to obtain a solder fine powder. By connecting the devices in these steps with piping, it is possible to continuously produce fine solder powder. |