JPS5611179A - Arc voltage control unit - Google Patents
Arc voltage control unitInfo
- 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
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
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) |
-
1979
- 1979-07-11 JP JP8690979A patent/JPS5611179A/en active Pending
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