JPS5752570A - Welding control device - Google Patents
Welding control deviceInfo
- Publication number
- JPS5752570A JPS5752570A JP12976880A JP12976880A JPS5752570A JP S5752570 A JPS5752570 A JP S5752570A JP 12976880 A JP12976880 A JP 12976880A JP 12976880 A JP12976880 A JP 12976880A JP S5752570 A JPS5752570 A JP S5752570A
- Authority
- JP
- Japan
- Prior art keywords
- welding
- time constant
- current
- steady
- time
- 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.)
- Granted
Links
Abstract
PURPOSE: To provide a welding control device by which stable welding conditions are obtained at the welding start performing arc starting by changing over the time constant of a control circuit at the welding start performing arc starting and at the steady welding in an arc welding machine using constant current feedback.
CONSTITUTION: A reference signal generator 1 setting a welding current value generates reference voltage of ⊖. An error amplifer 2 compares the VS detected as ⊕ signal from a welding current detector 6 and reference voltage VB, and inverts and amplifies the differential voltage VS-VB. Further, a resistor 3 and a capacitor 4 determine the time constant of the amplifier 2, and determine the time constant at the steady time by R1×C1, thereby providing the value at which a control system controls the welding current with high accuracy against disturbance. Here, arrangement is so made that the time constant of the amplifier 2 is changed over by a relay 8, and for a certain time at the welding start the time constant 2W4 times that at the steady welding is set so as to apply overbraking, whereby the starting current is raised slowly.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12976880A JPS5752570A (en) | 1980-09-16 | 1980-09-16 | Welding control device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12976880A JPS5752570A (en) | 1980-09-16 | 1980-09-16 | Welding control device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5752570A true JPS5752570A (en) | 1982-03-29 |
JPS645995B2 JPS645995B2 (en) | 1989-02-01 |
Family
ID=15017720
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12976880A Granted JPS5752570A (en) | 1980-09-16 | 1980-09-16 | Welding control device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5752570A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008149361A (en) * | 2006-12-20 | 2008-07-03 | Daihen Corp | Arc start control method for consumable electrode arc welding |
-
1980
- 1980-09-16 JP JP12976880A patent/JPS5752570A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008149361A (en) * | 2006-12-20 | 2008-07-03 | Daihen Corp | Arc start control method for consumable electrode arc welding |
Also Published As
Publication number | Publication date |
---|---|
JPS645995B2 (en) | 1989-02-01 |
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