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1. (WO2019025028) DEVICE AND METHOD FOR PLASMA CUTTING OF WORK PIECES
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Pub. No.: WO/2019/025028 International Application No.: PCT/EP2018/025187
Publication Date: 07.02.2019 International Filing Date: 09.07.2018
IPC:
B23K 10/00 (2006.01) ,H05H 1/34 (2006.01) ,B23K 37/00 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
23
MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
K
SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
10
Welding or cutting by means of a plasma
H ELECTRICITY
05
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
H
PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY- CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
1
Generating plasma; Handling plasma
24
Generating plasma
26
Plasma torches
32
using an arc
34
Details, e.g. electrodes, nozzles
B PERFORMING OPERATIONS; TRANSPORTING
23
MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
K
SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
37
Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the other main groups of this subclass
Applicants:
LINDE AKTIENGESELLSCHAFT [DE/DE]; Klosterhofstr. 1 80331 München, DE
Inventors:
HUSSARY, Nakhleh A.; DE
Priority Data:
1712303.531.07.2017GB
Title (EN) DEVICE AND METHOD FOR PLASMA CUTTING OF WORK PIECES
(FR) DISPOSITIF ET PROCÉDÉ DE DÉCOUPE AU PLASMA DE PIÈCES
Abstract:
(EN) The present invention relates to a device for plasma cutting, comprising a cutting torch (100) provided with an electrode (120), which is coaxially surrounded by a nozzle (110), thereby defining a passage (112) for passing of a plasma gas between electrode and nozzle, wherein the nozzle is coaxially surrounded by a shielding cap (122), thereby defining a passage (114) for passing of a shielding flow between nozzle and shielding cap, the device further comprising an annular member (200) coaxially surrounding the cutting torch (100) configured and adapted to provide a further curtain flow coaxially surrounding the shielding flow through passage (250a and 250b) wherein annular member (200) is configured and adapted for use of CO2-snow or a mixture containing CO2-snow as shielding flow.
(FR) La présente invention concerne un dispositif de découpe au plasma, comprenant un chalumeau coupeur (100) muni d'une électrode (120), qui est entourée coaxialement par une buse (110), définissant ainsi un passage (112) destiné à faire passer un gaz plasma entre l'électrode et la buse, la buse étant entourée coaxialement par un capuchon de protection (122), définissant ainsi un passage (114) destiné à faire passer un flux de protection entre la buse et le capuchon de protection, le dispositif comprenant en outre un élément annulaire (200) entourant coaxialement le chalumeau coupeur (100) conçu et approprié pour fournir un autre flux de barrière entourant coaxialement le flux de protection dans les passages (250a et 250b), l'élément annulaire (200) étant conçu et approprié pour être utilisé avec de la neige de CO2 ou un mélange contenant de la neige de CO2 en tant que flux de protection.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)