Patent ID: 11872588
Assignee: DüRR SYSTEMS AG
Field: Surface technology, coating (Chemistry)
Classification: CPC B | IPC B

Claim 17:
18. A method for the application of a coating medium onto a component, comprising:
emitting a coating medium jet from an application device, wherein, after emerging from the application device, the coating medium jet has a continuous region in the jet direction until said jet reaches a disintegration distance, whereupon, after the disintegration distance, the coating medium jet then disintegrates into droplets that are separate from one another in the jet direction; and
positioning the application device at a specified application distance from the component so that the coating medium jet impacts on the component and coats the component;
wherein the application distance is smaller than the disintegration distance of the coating medium jet, so that the coating medium jet impacts on the component with its continuous region; and
wherein the application method comprises at least one of:
a high application efficiency of at least eighty percent, so that substantially a whole of the applied coating medium is entirely deposited on the component without overspray occurring;
an area coating output of at least 0.5 square meters per minute;
a volume flow rate of the coating agent applied and thus the emergence velocity of the coating medium are set so that the coating medium does not rebound from the component after impacting on the component;
an emergence velocity of the coating medium from the application device is at least five meters per second;
the emergence velocity of the coating medium from the application device is a maximum of thirty meters per second;
the application distance is at least four millimeters;
the application distance is a maximum of two-hundred millimeters;
the application device is moved by a machine,
the coating medium is a water-based paint or a solvent-based paint; and
the coating medium jet can be switched on or off with a switch-over duration of less than fifty milliseconds.