JPS5550977A - Arc starting method with controlled arc starting current and apparatus thereof - Google Patents

Arc starting method with controlled arc starting current and apparatus thereof

Info

Publication number
JPS5550977A
JPS5550977A JP12340878A JP12340878A JPS5550977A JP S5550977 A JPS5550977 A JP S5550977A JP 12340878 A JP12340878 A JP 12340878A JP 12340878 A JP12340878 A JP 12340878A JP S5550977 A JPS5550977 A JP S5550977A
Authority
JP
Japan
Prior art keywords
current
output
welding
circuit
arc starting
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.)
Pending
Application number
JP12340878A
Other languages
Japanese (ja)
Inventor
Koki Beppu
Kenju Goto
Ichiro Kimura
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.)
Teisan KK
Stanley Electric Co Ltd
Teikoku Sanso KK
Original Assignee
Teisan KK
Stanley Electric Co Ltd
Teikoku Sanso KK
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
Application filed by Teisan KK, Stanley Electric Co Ltd, Teikoku Sanso KK filed Critical Teisan KK
Priority to JP12340878A priority Critical patent/JPS5550977A/en
Publication of JPS5550977A publication Critical patent/JPS5550977A/en
Pending legal-status Critical Current

Links

Landscapes

  • Arc Welding Control (AREA)

Abstract

PURPOSE: To prevent fusion welding of a contact tube and electrode wire by stopping the operation of an output control circuit while the electrode wire and base metal are shorting thereby limiting the welding current to a fixed value or under until the arc starting.
CONSTITUTION: When there in no welding current, the output of a differential amplifier 15a is L level and an output limiting circuit is ON. Because of this, if the anode side contacts of a voltage regulator 16b and diode 16c try to become H level, the current thereof feeds back to resistances R2, R3 through the diode 16c and transistor 16a and a differential amplifier circuit 14b does not send the signal for increasing welding output. Next, when the electrode wire and base metal 11 shorts, there is a delay action in the resistance R1 and capacitor C1 and the inverstion operation of the differential amplifier 15a of a timer circuit 15 becomes after a fixed time. At this time, the shortcircuit current is limited as mentioned before. After the establishment of the arc, the timer circuit 15 supplies the welding output corresponding to condition without the operation of the output limiting circuit 16 because the current is detected.
COPYRIGHT: (C)1980,JPO&Japio
JP12340878A 1978-10-06 1978-10-06 Arc starting method with controlled arc starting current and apparatus thereof Pending JPS5550977A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12340878A JPS5550977A (en) 1978-10-06 1978-10-06 Arc starting method with controlled arc starting current and apparatus thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12340878A JPS5550977A (en) 1978-10-06 1978-10-06 Arc starting method with controlled arc starting current and apparatus thereof

Publications (1)

Publication Number Publication Date
JPS5550977A true JPS5550977A (en) 1980-04-14

Family

ID=14859807

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12340878A Pending JPS5550977A (en) 1978-10-06 1978-10-06 Arc starting method with controlled arc starting current and apparatus thereof

Country Status (1)

Country Link
JP (1) JPS5550977A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5752013U (en) * 1980-09-11 1982-03-25

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52156151A (en) * 1976-06-22 1977-12-26 Toyota Motor Co Ltd Means for controlling electrode wire feed in consumable electrode arc welding machine
JPS5325251A (en) * 1976-11-25 1978-03-08 Mitsubishi Electric Corp Arc welding and apparatus therefor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52156151A (en) * 1976-06-22 1977-12-26 Toyota Motor Co Ltd Means for controlling electrode wire feed in consumable electrode arc welding machine
JPS5325251A (en) * 1976-11-25 1978-03-08 Mitsubishi Electric Corp Arc welding and apparatus therefor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5752013U (en) * 1980-09-11 1982-03-25

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