EP 1922908 B1 20120411 - METHOD FOR OPERATION OF A STEAM PLASMA BURNER AND STEAM CUTTING DEVICE
Title (en)
METHOD FOR OPERATION OF A STEAM PLASMA BURNER AND STEAM CUTTING DEVICE
Title (de)
VERFAHREN ZUM BETREIBEN EINES WASSERDAMPFPLASMABRENNERS UND WASSERDAMPF-SCHNEIDGERÄT
Title (fr)
PROCEDE DE FONCTIONNEMENT D'UN CHALUMEAU AU PLASMA DE VAPEUR D'EAU ET APPAREIL DE DECOUPAGE A LA VAPEUR D'EAU
Publication
Application
Priority
- AT 2006000365 W 20060906
- AT 14822005 A 20050909
Abstract (en)
[origin: WO2007028182A2] The invention relates to a method for operation of a steam plasma burner (6), comprising a cathode (22) and an anode (24) in the form of a nozzle (23) for machining a workpiece (20), wherein during the operation a current is applied between the cathode (22) and the anode (24) and/or the workpiece (20) by means of a power supply (2). After starting a pilot arc between the cathode (22) and the anode (24) by approaching the steam plasma burner (6) to the workpiece (20), a working arc is formed between the cathode (22) and the workpiece (20) and the pilot arc is extinguished by switching off the power supply (2) to the anode (24) and the current increased to a given working current. In order to achieve an optimal operation of a steam plasma burner, the voltage (U<SUB>UE</SUB>) between the cathode (22) and the workpiece (20) is monitored during working operation and the power supply (2) reconnected to the anode (24) to reform the pilot arc when the voltage (U<SUB>UE</SUB>) exceeds a threshold (I<SUB>UEs</SUB>).
IPC 8 full level
H05H 1/36 (2006.01)
CPC (source: EP US)
H05H 1/36 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2007028182 A2 20070315; WO 2007028182 A3 20070726; AT 502422 A1 20070315; AT 502422 B1 20070615; AT E553635 T1 20120415; CN 101288347 A 20081015; CN 101288347 B 20121226; EP 1922908 A2 20080521; EP 1922908 B1 20120411; JP 2009506892 A 20090219; JP 4907660 B2 20120404; US 2009266799 A1 20091029
DOCDB simple family (application)
AT 2006000365 W 20060906; AT 06774763 T 20060906; AT 14822005 A 20050909; CN 200680038192 A 20060906; EP 06774763 A 20060906; JP 2008529411 A 20060906; US 99162706 A 20060906