Patent ID: 6485674
Filing Date: 2002-11-26
Classification: B01J,B22F,B23K

Abstract:
An apparatus for the production of soft solder powder in a particle size range of 1 to 100 &mgr;m and a liquidus temperature <250Â° C., comprising:a support; a melt container on said support for holding a solder melt; a dispersion container on said support below said melt container and receiving an oil in which said solder melt is dispersable; a melt pipe connecting said melt container with said dispersion container and extending downwardly with an inclination to a deepest point of said dispersion container; a multistage shearing device on said support having an inlet connected to said dispersion container at said deepest point and an outlet, said multistage shearing device subdividing said solder melt into melt droplets dispersable in said oil; a recirculation pipe connecting said outlet with an upper part of the dispersion container; a sedimentation container on said support below said dispersion container; a branch pipe from said recirculation pipe opening into said sedimentation container, said sedimentation container having outlet pipes; an ascending pipe communicating with the upper part of the sedimentation container and provided with a pump connected to said outlet pipes; and at least one heating device for heating said containers, said pipes, said pump and said multistage shearing device.