JPS55149777A - Direct current arc welding machine - Google Patents

Direct current arc welding machine

Info

Publication number
JPS55149777A
JPS55149777A JP5703779A JP5703779A JPS55149777A JP S55149777 A JPS55149777 A JP S55149777A JP 5703779 A JP5703779 A JP 5703779A JP 5703779 A JP5703779 A JP 5703779A JP S55149777 A JPS55149777 A JP S55149777A
Authority
JP
Japan
Prior art keywords
welding
capacitor
current
circuit
direct current
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
JP5703779A
Other languages
Japanese (ja)
Inventor
Shunsaku Onishi
Tadashi Aso
Hirobumi Nomura
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 JP5703779A priority Critical patent/JPS55149777A/en
Publication of JPS55149777A publication Critical patent/JPS55149777A/en
Pending legal-status Critical Current

Links

Landscapes

  • Arc Welding Control (AREA)

Abstract

PURPOSE: To enable the stable welding in a wide current region with one DC reactor by parallel connecting a smoothing circuit which includes a capacitor and an impedance circuit which does not include any capacitor to a fusion-welding electric power source.
CONSTITUTION: When contacts 2 are closed by the operation of a torch, an AC power source 1 is supplied to a welding transformer 3 and its output is made to direct current by a rectifying circuit 4. This direct current is applied to a welding electrode 10 by way of the main winding of a DC reactor 4. The smoothing capacitor 6 during welding repeats charging and discharging and after the end of the welding, it is discharged through a resistance 14. As a result of this, even if an arc 12 is held put out, the specified load current flows through a control winding 13 and resistance 14, and the no-load voltage generated between the electrode 10 and base material 11 becomes lower. When current supply to the load side of the transformer 3 is stopped by opening the contacts 2, the charges having been charged into the capacitor 6 are discharged through an impedance circuit C. This circuit constitution eliminates the pulsation of the current in the spray arc welding region and stabilizes the arc.
COPYRIGHT: (C)1980,JPO&Japio
JP5703779A 1979-05-11 1979-05-11 Direct current arc welding machine Pending JPS55149777A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5703779A JPS55149777A (en) 1979-05-11 1979-05-11 Direct current arc welding machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5703779A JPS55149777A (en) 1979-05-11 1979-05-11 Direct current arc welding machine

Publications (1)

Publication Number Publication Date
JPS55149777A true JPS55149777A (en) 1980-11-21

Family

ID=13044238

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5703779A Pending JPS55149777A (en) 1979-05-11 1979-05-11 Direct current arc welding machine

Country Status (1)

Country Link
JP (1) JPS55149777A (en)

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