JPS5668582A - Power source of arc welding - Google Patents

Power source of arc welding

Info

Publication number
JPS5668582A
JPS5668582A JP14583879A JP14583879A JPS5668582A JP S5668582 A JPS5668582 A JP S5668582A JP 14583879 A JP14583879 A JP 14583879A JP 14583879 A JP14583879 A JP 14583879A JP S5668582 A JPS5668582 A JP S5668582A
Authority
JP
Japan
Prior art keywords
period
resistance
polarity
scr3
transformer
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
JP14583879A
Other languages
Japanese (ja)
Inventor
Shoichi Yamamoto
Yoriaki Nishida
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP14583879A priority Critical patent/JPS5668582A/en
Publication of JPS5668582A publication Critical patent/JPS5668582A/en
Pending legal-status Critical Current

Links

Landscapes

  • Arc Welding Control (AREA)

Abstract

PURPOSE: To enable formation of uniform beads continuously in a wide range of current by connecting a resistance in parallel to one of a pair of control rectifier cells for double wave rectification of transformer output having an intermediate tap.
CONSTITUTION: Both ends of the secondary winding of a transformer 1 provided with an intermediate tap 0 are connected to control rectifier cells (SCR) 2, 3 and double wave rectifies the output of the transformer 1 and supplies a reverse polarity arc source to a wire 4 and a base metal 5. Here, a resistance 6 is connected to one of SCR2. In the output waveform, a period (c) is supplied to the load through the resistance 6. Then, SCR2 is ignited and gives a period (a). When the polarity is further reversed, the period (d) is reversed by the resistance 6 and the polarity is reversed by ignition of SCR3 and becomes a period (b). In the case where there is no ignition of SCR3, the period (d) increases to fit to small current arc which requires much positive polarity. Accordingly, waveform to suit to each welding can be obtained by conducting angle control of SCR3.
COPYRIGHT: (C)1981,JPO&Japio
JP14583879A 1979-11-10 1979-11-10 Power source of arc welding Pending JPS5668582A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14583879A JPS5668582A (en) 1979-11-10 1979-11-10 Power source of arc welding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14583879A JPS5668582A (en) 1979-11-10 1979-11-10 Power source of arc welding

Publications (1)

Publication Number Publication Date
JPS5668582A true JPS5668582A (en) 1981-06-09

Family

ID=15394266

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14583879A Pending JPS5668582A (en) 1979-11-10 1979-11-10 Power source of arc welding

Country Status (1)

Country Link
JP (1) JPS5668582A (en)

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