FR2151219A5 - Plasma beam arc control - prevents voltage surges - Google Patents

Plasma beam arc control - prevents voltage surges

Info

Publication number
FR2151219A5
FR2151219A5 FR7131046A FR7131046A FR2151219A5 FR 2151219 A5 FR2151219 A5 FR 2151219A5 FR 7131046 A FR7131046 A FR 7131046A FR 7131046 A FR7131046 A FR 7131046A FR 2151219 A5 FR2151219 A5 FR 2151219A5
Authority
FR
France
Prior art keywords
plasma beam
arc control
voltage surges
prevents voltage
arc
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
FR7131046A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LINETSKY LEV
PERSITS LEV
SHAPIRO ILYA
TKACHEV MIKHAIL
Original Assignee
LINETSKY LEV
PERSITS LEV
SHAPIRO ILYA
TKACHEV MIKHAIL
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to DE19712140241 priority Critical patent/DE2140241C3/en
Application filed by LINETSKY LEV, PERSITS LEV, SHAPIRO ILYA, TKACHEV MIKHAIL filed Critical LINETSKY LEV
Priority to FR7131046A priority patent/FR2151219A5/en
Application granted granted Critical
Publication of FR2151219A5 publication Critical patent/FR2151219A5/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K10/00—Welding or cutting by means of a plasma
    • B23K10/006—Control circuits therefor
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H1/00—Generating plasma; Handling plasma
    • H05H1/24—Generating plasma
    • H05H1/26—Plasma torches
    • H05H1/32—Plasma torches using an arc
    • H05H1/34—Details, e.g. electrodes, nozzles
    • H05H1/36—Circuit arrangements

Abstract

The control of the welding arc is effected by measurement of the voltage between the cathode and the nozzle, detecting any surges, in the event of which increases in the arc current are brought to a halt. The prefd. means for this is a voltmeter with an inbuilt filter allowing only frequencies higher than that of the supply to pass. This is connected to a controller for reducing the current supply to the arc circuit. The method stops premature failure of the nozzle due to arcing, thus increasing its service life and decreasing time for changeover.
FR7131046A 1971-08-26 1971-08-26 Plasma beam arc control - prevents voltage surges Expired FR2151219A5 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE19712140241 DE2140241C3 (en) 1971-08-26 1971-08-11 Method for regulating the operating status of a system for plasma arc processing of workpieces and plasma arc processing system
FR7131046A FR2151219A5 (en) 1971-08-26 1971-08-26 Plasma beam arc control - prevents voltage surges

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7131046A FR2151219A5 (en) 1971-08-26 1971-08-26 Plasma beam arc control - prevents voltage surges

Publications (1)

Publication Number Publication Date
FR2151219A5 true FR2151219A5 (en) 1973-04-13

Family

ID=9082252

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7131046A Expired FR2151219A5 (en) 1971-08-26 1971-08-26 Plasma beam arc control - prevents voltage surges

Country Status (2)

Country Link
DE (1) DE2140241C3 (en)
FR (1) FR2151219A5 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2439995A1 (en) * 1978-10-24 1980-05-23 Anvar METHOD AND DEVICE FOR MEASURING THE CONCENTRATION OF AN OXIDIZABLE SUBSTRATE SOLUTION BY ENZYMATIC REACTION
FR2445089A1 (en) * 1978-12-21 1980-07-18 Mai Edelstahl PROTECTION DEVICE FOR HIGH POWER PLASMATRONS
EP0213689A2 (en) * 1985-09-04 1987-03-11 Thermal Dynamics Corporation Plasma torch shutdown circuit

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD132706A3 (en) * 1974-10-08 1978-10-25 Jochen Boehme METHOD AND DEVICE FOR PROTECTING THE DUTIES OF WORK-PLASTERED PLASMA ROLLERS
US4330700A (en) * 1980-03-25 1982-05-18 Peter Jagieniak Plasmaburner with contact protection
AT388271B (en) * 1984-09-26 1989-05-26 Voest Alpine Ag CONTROL DEVICE FOR A HIGH-PERFORMANCE PLASMA TORCH, IN PARTICULAR FOR A MELTING STOVE
DE3435680A1 (en) * 1984-09-28 1986-04-03 Fried. Krupp Gmbh, 4300 Essen PLASMA TORCH

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2439995A1 (en) * 1978-10-24 1980-05-23 Anvar METHOD AND DEVICE FOR MEASURING THE CONCENTRATION OF AN OXIDIZABLE SUBSTRATE SOLUTION BY ENZYMATIC REACTION
FR2445089A1 (en) * 1978-12-21 1980-07-18 Mai Edelstahl PROTECTION DEVICE FOR HIGH POWER PLASMATRONS
EP0213689A2 (en) * 1985-09-04 1987-03-11 Thermal Dynamics Corporation Plasma torch shutdown circuit
EP0213689A3 (en) * 1985-09-04 1988-09-21 Thermal Dynamics Corporation Plasma torch shutdown circuit

Also Published As

Publication number Publication date
DE2140241B2 (en) 1974-06-27
DE2140241C3 (en) 1975-02-27
DE2140241A1 (en) 1973-02-22

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Legal Events

Date Code Title Description
ST Notification of lapse