METHOD AND APPARATUS FOR MANUFACTURING A LOW MELTING POINT NANO GLASS POWDER

摘要

The present invention relates to a method and apparatus for manufacturing a low melting point nano glass powder, which use thermal plasma generated by a direct current power source and are capable of manufacturing a bismuth-based nano glass powder, that uses bismuth (Bi) instead of the traditional lead (Pb) as the main ingredient, at a low sintering temperature, quickly at a low cost, and without fear of polluting the environment. The method of the present invention comprises the steps of: preparing a bismuth-based low melting point glass powder precursor of a micro size, having bismuth (Bi) as the main ingredient; injecting the glass powder precursor into a reaction chamber of a plasma treatment device; applying thermal plasma via a direct current power source to the glass powder precursor injected into the reaction chamber, to vaporize the glass powder precursor; and generating nano glass powder having a nano size by quenching the gas generated by vaporizing the glass powder precursor.