MY116729A - Arc transfer circuit - Google Patents

Arc transfer circuit

Info

Publication number
MY116729A
MY116729A MYPI98001141A MYPI9801141A MY116729A MY 116729 A MY116729 A MY 116729A MY PI98001141 A MYPI98001141 A MY PI98001141A MY PI9801141 A MYPI9801141 A MY PI9801141A MY 116729 A MY116729 A MY 116729A
Authority
MY
Malaysia
Prior art keywords
current
circuit branch
workpiece
arc
electrode
Prior art date
Application number
MYPI98001141A
Inventor
Joseph Allen Daniel
Original Assignee
Lincoln Electric Co
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 claimed from US08/819,968 external-priority patent/US5847354A/en
Application filed by Lincoln Electric Co filed Critical Lincoln Electric Co
Publication of MY116729A publication Critical patent/MY116729A/en

Links

Classifications

    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Mechanical Engineering (AREA)
  • Arc Welding Control (AREA)
  • Plasma Technology (AREA)

Abstract

A CIRCUIT (B) FOR PROVIDING D.C. CURRENT FROM A POWER SOURCE (10) HAVING A CURRENT REGULATING INPUT (16) TO A PLASMA SYSTEM (20) INCLUDING AN ELECTRODE (22) AND A NOZZLE (24) WITH A PLASMA ARC OPENING (26) EXPOSING THE ELECTRODE TO A JUXTAPOSITIONED WORKPIECE (30), WHICH CIRCUIT HAS A FIRST CIRCUIT BRANCH (40) FOR CREATING A PILOT ARC ACROSS THE ELECTRODE AND NOZZLE, A SECOND CIRCUIT BRANCH (50) FOR CREATING AN OPERATIVE PLASMA ARE ACROSS THE ELECTRODE AND THE WORKPIECE, A CURRENT SENSOR MEANS (52) IN THE SECOND CIRCUIT BRANCH FOR SENSING THE WORKPIECE CURRENT IN THE SECOND CIRCUIT BRANCH, SWITCH MEANS (44) FOR OPENING THE FIRST CIRCUIT BRANCH WHEN THE SENSED WORKPIECE CURRENT EXCEEDS A PRESELECTED CURRENT TO TRANSFER THE PILOT ARC TO THE OPERATIVE PLASMA ARC, MEANS (I 10,60'',56,100) FOR REGULATING THE CURRENT IN THE FIRST CIRCUIT BRANCH UNTIL THE ARC TRANSFER AND MEANS FOR INCREASING THE PILOT CURRENT SUPPLIED FROM SAID POWER SOURCE TO FIRST CIRCUIT BRANCH WHEN SENSED WORKPIECE CURRENT EXCEEDS A LOW THRESHOLD VALUE. MOST ILLUSTRATIVE
MYPI98001141A 1997-03-18 1998-03-16 Arc transfer circuit MY116729A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/819,968 US5847354A (en) 1997-03-18 1997-03-18 Arc transfer circuit

Publications (1)

Publication Number Publication Date
MY116729A true MY116729A (en) 2004-03-31

Family

ID=29584902

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI98001141A MY116729A (en) 1997-03-18 1998-03-16 Arc transfer circuit

Country Status (4)

Country Link
KR (1) KR100286502B1 (en)
ID (1) ID20080A (en)
MY (1) MY116729A (en)
TW (1) TW366300B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100886739B1 (en) * 2002-03-11 2009-03-04 가부시키가이샤 히다치 하이테크놀로지즈 Power supply device, semiconductor manufacturing device and semiconductor wafer manufacturing method using the same
KR100822390B1 (en) * 2002-03-11 2008-04-16 가부시키가이샤 히다치 하이테크놀로지즈 High Frequency Power Supply for Plasma Generator
KR20040034262A (en) * 2002-10-21 2004-04-28 주식회사 다원시스 Current Limiting Circuit for Use in Plasma Processing Apparatus

Also Published As

Publication number Publication date
ID20080A (en) 1998-09-24
KR100286502B1 (en) 2001-04-16
KR19980080346A (en) 1998-11-25
TW366300B (en) 1999-08-11

Similar Documents

Publication Publication Date Title
AU3523099A (en) Ablation system
CA2225942A1 (en) Plasma pilot arc control
EP0987620A3 (en) Function extending apparatus, electronic apparatus and electronic system
EP0784374A3 (en) Power supply
EP0920106A3 (en) Charging control method and charging control device
TW340993B (en) Controlling device for an automotive generator
MY116764A (en) Improved arc retract circuit and method
DE59903714D1 (en) Circuit arrangement with map-oriented overload evaluation
CA2230427A1 (en) Arc transfer circuit
MY123877A (en) Power interface circuit for a tdma transmitter
EP1118918A3 (en) Programmable controller
ATE221095T1 (en) REDISPERSIBLE POWDER BASED ON CARBOXYLATED BUTADIENE CONTAINING COPOLYMERS
TW337047B (en) Power control device
TW366300B (en) ARC transfer circuit
EP0973239A3 (en) Protective circuit
TW357270B (en) Semiconductor assembled circuit stationery current testing method, semiconductor assembled circuit
ZA989827B (en) Interface for a lamp operating unit
EP1263262A3 (en) Oscillation prevention circuit
MY116919A (en) System for switching between stand-by and wake-up states, of an information processing unit and of an analogue switch
TW357351B (en) Semiconductor memory data input buffer
AU2001295574A1 (en) Protective circuit
DE69837032D1 (en) Magnetothermic control device and equipped with such a device circuit breaker
MY115577A (en) Power sensor circuit
JPS5298348A (en) Control means for air conditioner
SE9701517L (en) Device for controlling the electricity supply to objects