Method and device for thermal spraying of coating materials

The method comprises melting a coating material, which is present in the form of spray wire, and thermally spraying the coating material by an atomizing gas and/or combustion gas. The melted coating material is displaced by coupling of ultrasound in vibrations during melting. The ultrasound is directly coupled to the coating material in which: an ultrasonic generator (6) is brought in direct contact with the melted coating material; and an ultrasound is formed by a modulation or pulse-like variation of the current of the power supply. The method comprises melting a coating material, which is present in the form of spray wire, and thermally spraying the coating material by an atomizing gas and/or combustion gas. The melted coating material is displaced by coupling of ultrasound in vibrations during melting. The ultrasound is directly coupled to the coating material in which: an ultrasonic generator (6) is brought in direct contact with the melted coating material; and an ultrasound is formed by a modulation or pulse-like variation of the current of the power supply and by a modulation or pulse-like variation of an atomizing gas- and/or combustion gas-gas stream, where: the current changes its direction; the current direction change is carried out within ten seconds to pico seconds; and a current strength is 0.01-3000 Å . The ultrasound is indirectly coupled to the coating material in which: an ultrasonic generator is brought in contact with the melted coating material via a wire guide; and an ultrasonic generator is arranged in a gas stream of the atomizer- and/or combustion gas in a flow direction or a nozzle is designed as the ultrasonic generator, which couples the ultrasound indirectly via the gas stream into the melted coating material. The ultrasound is present in a frequency range of 15 kHz to 10 MHz. The thermal spraying step is carried out by a wire flame spraying and an electric arc. The atomizing gas is preheated to increase the temperature during arc spraying process. An independent claim is included for a device for thermal spraying of coating materials. Die vorliegende Erfindung betrifft ein Verfahren zum thermischen Spritzen von Beschichtungsmaterialien, wobei das Beschichtungsmaterial, welches in Form mindestens eines Spritzdrahtes vorliegt, aufgeschmolzen und mittels eines Zerstäubergases bzw. Verbrennungsgases zerstäubt wird, dadurch gekennzeichnet, dass das aufzuschmelzende Beschichtungsmaterial beim Aufschmelzen durch Einkopplung von Ult