Abstract: The invention relates to a spraying tool, in particular as part of a mold-spraying device for spraying at least one section of a wall of a mold with working medium. In at least one embodiment, the spraying tool comprises a plurality of spraying elements for dispensing working medium, and at least one working-medium supply line which supplies working medium to the plurality of spraying elements. In accordance with at least one embodiment, at least some of the spraying elements, the spraying nozzles of which point downwards during operation, are equipped with a separate valve unit which is adjacent to the spraying nozzle and the valve element of which is prestressed elastically into a closed position in which it prevents the dispensing of working medium, but can be transferred under the action of a hydraulic and/or pneumatic pressure into an open position in which it permits the dispensing of working medium.

Abstract: The invention relates to a method and an apparatus for automated servicing of a torch head comprising at least one contact tip and a nozzle surrounding the at least one contact tip. In a first servicing device the torch head is contact-freely cleaned in an assembled state of said at least one contact tip and said nozzle. A second servicing device is used for applying a torch head treatment agent to at least a portion of the surfaces of said at least one contact tip and said nozzle. The operation of the first servicing device and the second servicing device, respectively, is started by a control unit after the torch head has been transferred to a corresponding servicing position. The torch head treatment agent may include between about 5 and about 50 percent-by-weight of boron nitride as a torch head treatment agent for servicing of a welding torch head.

Abstract: The invention relates to a spraying tool, in particular as part of a mold-spraying device for spraying at least one section of a wall of a mold with working medium. In at least one embodiment, the spraying tool comprises a plurality of spraying elements for dispensing working medium, and at least one working-medium supply line which supplies working medium to the plurality of spraying elements. In accordance with at least one embodiment, at least some of the spraying elements, the spraying nozzles of which point downwards during operation, are equipped with a separate valve unit which is adjacent to the spraying nozzle and the valve element of which is prestressed elastically into a closed position in which it prevents the dispensing of working medium, but can be transferred under the action of a hydraulic and/or pneumatic pressure into an open position in which it permits the dispensing of working medium.