JPS5611179A - Arc voltage control unit - Google Patents

Arc voltage control unit

Info

Publication number
JPS5611179A
JPS5611179A JP8690979A JP8690979A JPS5611179A JP S5611179 A JPS5611179 A JP S5611179A JP 8690979 A JP8690979 A JP 8690979A JP 8690979 A JP8690979 A JP 8690979A JP S5611179 A JPS5611179 A JP S5611179A
Authority
JP
Japan
Prior art keywords
voltage
arc
relay
welding
welding machine
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
JP8690979A
Other languages
Japanese (ja)
Inventor
Kiju Endo
Takeshi Araya
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.)
Via Mechanics Ltd
Original Assignee
Hitachi Seiko Ltd
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 Hitachi Seiko Ltd filed Critical Hitachi Seiko Ltd
Priority to JP8690979A priority Critical patent/JPS5611179A/en
Publication of JPS5611179A publication Critical patent/JPS5611179A/en
Pending legal-status Critical Current

Links

Landscapes

  • Arc Welding Control (AREA)

Abstract

PURPOSE: To make possible the prevention of seizure by providing a regulating circuit for a specific output current and changing over the output current of a welding machine when arc voltage becomes lower than reference voltage in the case of performing arc welding by the use of a consumable electrode.
CONSTITUTION: A comparator 8 comparing arc voltage and reference voltage, as well as the normally open contacts 9 of a relay 10 actuating only during the generation of the arc and a relay on the output side of the comparator are provided. The make and break contacts of this relay are provided to a regulating circuit 18 for the output current of a welding machine 16. If the regulating circuit 18 of the welding machine 16. If the regulating circuit 18 of the welding machine is operated, the arc is generated between a consumable electrode 5 and the welding works 6. If the reference voltage is set lower than the seizure threshold voltage, the comparator operates upon rising of the voltage at above the arc voltage during welding, causing the relay to go on and a steady signal circuit 19 to go off. On the other hand, an emergency signal circuit 20 goes on to lower the output voltage; therefore, the rate of melting of the consumable electrode decreases and the seizure phenomenon does not occur.
COPYRIGHT: (C)1981,JPO&Japio
JP8690979A 1979-07-11 1979-07-11 Arc voltage control unit Pending JPS5611179A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8690979A JPS5611179A (en) 1979-07-11 1979-07-11 Arc voltage control unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8690979A JPS5611179A (en) 1979-07-11 1979-07-11 Arc voltage control unit

Publications (1)

Publication Number Publication Date
JPS5611179A true JPS5611179A (en) 1981-02-04

Family

ID=13899959

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8690979A Pending JPS5611179A (en) 1979-07-11 1979-07-11 Arc voltage control unit

Country Status (1)

Country Link
JP (1) JPS5611179A (en)

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