METHOD OF FINDING THE EDGE BY A GAS DISCHARGING MOUTH OF A WELDING AND/OR CUTTING TORCH BEING MOVED TOWARDS THE EDGE OF A WORK PIECE
作者： Manfred Nicolai
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摘要: Abstract of EP01484051. Process for the edge-finding a gas-discharging welding and/or cuttin nozzle (39) which is advanced towards workpiece edge (40) adn has central channel (44), connected to gas feed lines (13, 14, 15, 27, 28), and at least one annular or slot-shaped chanel (19), concentrically surrounding (44) with openings directed (11), characterized in that, on reaching (40), jet (47) leaving generates (19) (39), used as sensor, pressure increase drop respect predetermined output difference triggers signal controlling cutting operation.
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