Control method for mig/mag-welding and welding equipment...

B - Operations – Transporting – 23 – K

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B23K 9/09 (2006.01) B23K 9/095 (2006.01)

Patent

CA 2622134

The present invention refers to a control method and welding equipment for MIG/MAG-welding with presence of short-circuiting droplets between an electrode end (7') and a workpiece (8). The method comprises establishment of a short-circuiting time, establishment of an arc time, and controlling the energy supplied to the electrode (7). The energy supply is controlled in such a way that the energy supply is increased if a measured short-circuiting time of a total period time, where the period time is the sum of the short- circuiting time and the arc time, exceeds a defined adjustable set value and decreases if said short-circuiting percentage goes below said set value.

La présente invention concerne un procédé de commande et un équipement de soudure pour la soudure MIG/MAG en présence de gouttelettes génératrices de courts-circuits entre une extrémité d~électrode (7~) et une pièce à souder (8). Le procédé comprend l~établissement d~un temps de court-circuit, l~établissement d~un temps d~arc, et la commande de l'énergie fournie à l'électrode (7). L~alimentation en énergie est commandée de telle façon que l~alimentation en énergie augmente si un temps de court-circuit mesuré d~une période totale, la période étant la somme du temps de court-circuit et du temps d~arc, dépasse une valeur de référence ajustable définie, et diminue si ledit pourcentage de court-circuit passe en dessous de ladite valeur de référence.

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