| 摘要 |
A system for dry cleaning workpieces by removing solid and/or liquid particles adhereing thereto with a gaseous medium by suction. To this end, a suction mold encloses the workpieces on all sides while serving as a guiding device whose inner contour follows the outer contour of the workpiece. The cleaning medium flows to the gaps between the suction mold and the workpiece via feed slots and/or feed boreholes of the suction mold. Gaps, medium feed slots and/or medium feed boreholes are formed, arranged and dimensioned so that the flowing medium has a velocity of greater than 20 m/s everywhere on the surface of the workpiece, and the solid and/or liquid particles adhereing thereto are carried away. The suction slot, through which the flowing medium is removed by suction, and the suction duct which is connected thereto and which leads to the suction unit, has larger cross-sections than the sum of the cross-sections of all the gaps between the workpiece and the suction mold, and also the sum of the cross-sections of the medium feed slots and/or of the medium feed boreholes. The sum of the cross-sections of the medium feed slots and or of the medium feed boreholes corresponds to 0.9 to 1.2 times the sum of the cross-sections of all the gaps between the workpieces and the suction molds. |
