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1. WO2018132682 - DISABLING PLASMA ARC TORCHES AND RELATED SYSTEMS AND METHODS

Publication Number WO/2018/132682
Publication Date 19.07.2018
International Application No. PCT/US2018/013531
International Filing Date 12.01.2018
IPC
H05H 1/34 2006.01
HELECTRICITY
05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
HPLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY- CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
1Generating plasma; Handling plasma
24Generating plasma
26Plasma torches
32using an arc
34Details, e.g. electrodes, nozzles
B23K 9/10 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
9Arc welding or cutting
10Other electric circuits therefor; Protective circuits; Remote controls
B23K 10/00 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
10Welding or cutting by means of a plasma
CPC
B23K 10/006
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
10Welding or cutting by means of a plasma
006Control circuits therefor
B23K 9/10
BPERFORMING OPERATIONS; TRANSPORTING
23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
KSOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
9Arc welding or cutting
10Other electric circuits therefor; Protective circuits; Remote controls
H05H 1/34
HELECTRICITY
05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
HPLASMA TECHNIQUE
1Generating plasma; Handling plasma
24Generating plasma
26Plasma torches
32using an arc
34Details, e.g. electrodes, nozzles
H05H 1/3473
H05H 1/36
HELECTRICITY
05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
HPLASMA TECHNIQUE
1Generating plasma; Handling plasma
24Generating plasma
26Plasma torches
32using an arc
34Details, e.g. electrodes, nozzles
36Circuit arrangements
Applicants
  • HYPERTHERM, INC. [US]/[US]
Inventors
  • WU, Jing
  • ALTOBELLI, Bruce, P.
  • DUAN, Zheng
  • BOROWY, Dennis, M.
  • MAO, Junson
Agents
  • PENOYER, Gregory, J.
  • SHALEK, James
  • COUSINS, Abigail
  • CONSALVI, Mary
  • BAUER, Steven
Priority Data
62/446,05813.01.2017US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) DISABLING PLASMA ARC TORCHES AND RELATED SYSTEMS AND METHODS
(FR) DÉSACTIVATION DE CHALUMEAUX À PLASMA ET SYSTÈMES ET PROCÉDÉS ASSOCIÉS
Abstract
(EN)
In some aspects, methods of disengaging a plasma control circuit within a plasma arc torch of a plasma processing system to place the torch into a safety-locked mode can include providing: a plasma control circuit configured to convey a current from the plasma cutting system through the plasma arc torch to one or more consumables disposed in the torch and an operator interface switch connected to the plasma control circuit and configured to initiate generation of a plasma arc from the plasma arc torch; and activating a switch, separate from the operator interface switch, disposed on the torch and connected to the plasma control circuit to disconnect the plasma control circuit to limit the current, including pilot current, from flowing to the one or more consumables.
(FR)
Selon certains aspects, des procédés de libération d'un circuit de commande de plasma à l'intérieur d'un chalumeau à plasma d'un système de traitement au plasma pour placer le chalumeau dans un mode à verrouillage de sécurité peuvent consister à fournir : un circuit de commande de plasma conçu pour acheminer un courant provenant du système de découpe au plasma à travers le chalumeau à plasma vers un ou plusieurs consommables disposés dans le chalumeau et un commutateur d'interface d'opérateur connecté au circuit de commande de plasma et conçu pour initier la génération d'un arc plasma à partir du chalumeau à plasma ; et activer un commutateur, séparé du commutateur d'interface d'opérateur, disposé sur le chalumeau et connecté au circuit de commande de plasma pour déconnecter le circuit de commande de plasma afin de limiter la circulation du courant, y compris le courant pilote, vers le ou les consommables.
Also published as
EP2018702039
Latest bibliographic data on file with the International Bureau