Patent ID: 6331689
Filing Date: 2001-12-18
Classification: B23K

Abstract:
A method for producing a powder aerosol which can be fed in metered form via a gas stream to a plasma burner, for which purpose the powder aerosol without any aggregates is required to be provided at a constant mass flow rate, comprising the following method steps:drawing a powder from a reservoir area by mechanical means;converting the powder, via a propellant gas, to the powder aerosol;introducing the powder aerosol into a container to which ultrasound can be applied and whose volume to which ultrasound is applied is used as a storage and/or buffer means for the aerosol;using the ultrasound affect to break up powder lumps or aggregations in the powder aerosol, thus making the powder aerosol more uniform and finer; andfeeding the powder aerosol, which has been made more uniform and finer, to the plasma burner.