JPS5633713A - Direct current arc electric power source - Google Patents

Direct current arc electric power source

Info

Publication number
JPS5633713A
JPS5633713A JP10930879A JP10930879A JPS5633713A JP S5633713 A JPS5633713 A JP S5633713A JP 10930879 A JP10930879 A JP 10930879A JP 10930879 A JP10930879 A JP 10930879A JP S5633713 A JPS5633713 A JP S5633713A
Authority
JP
Japan
Prior art keywords
arc
thyristor
output
control
voltage
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
JP10930879A
Other languages
Japanese (ja)
Inventor
Koji Mizuno
Masanori Mizuno
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP10930879A priority Critical patent/JPS5633713A/en
Publication of JPS5633713A publication Critical patent/JPS5633713A/en
Pending legal-status Critical Current

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  • Control Of Voltage And Current In General (AREA)

Abstract

PURPOSE: To eliminate the unsteady state of the arc and thus prevent completely the defect of welding, by detecting directly the fluctuation of voltage of the AC power source and thus ensuring the output control of the DC arc for welding.
CONSTITUTION: The AC voltage supplied to the main transformer 12 is converted into the DC voltage via the thyristor 14, and the DC are 20 is produced between the electrode 16 and the object 18 to be welded. In this instant, a phase control in a range of 0Wπ(rad) is given to the AC voltage 61 of the sine waveform supplied to the transformer 12 through a control given to the ignition angle of the thyristor 14. And thus the output 62 is given to the arc 20 in the form of the cosine waveform. Accordingly, the output to the arc 20 decreases gradually according to the increment of the ignition angle of the thyristor 14. As a result, the output to the arc 20 can be set to an optional value by giving a control to the ignition angle of the thyristor 14 by the ignition pulse delivered from the pulse circuit 44 of the control part 30.
COPYRIGHT: (C)1981,JPO&Japio
JP10930879A 1979-08-28 1979-08-28 Direct current arc electric power source Pending JPS5633713A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10930879A JPS5633713A (en) 1979-08-28 1979-08-28 Direct current arc electric power source

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10930879A JPS5633713A (en) 1979-08-28 1979-08-28 Direct current arc electric power source

Publications (1)

Publication Number Publication Date
JPS5633713A true JPS5633713A (en) 1981-04-04

Family

ID=14506901

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10930879A Pending JPS5633713A (en) 1979-08-28 1979-08-28 Direct current arc electric power source

Country Status (1)

Country Link
JP (1) JPS5633713A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5462595A (en) * 1977-10-26 1979-05-19 Inoue Japax Res Inc Electrical discharge machine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5462595A (en) * 1977-10-26 1979-05-19 Inoue Japax Res Inc Electrical discharge machine

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