JPS54110947A - Reverse polar plasma arc padding welding - Google Patents

Reverse polar plasma arc padding welding

Info

Publication number
JPS54110947A
JPS54110947A JP1883178A JP1883178A JPS54110947A JP S54110947 A JPS54110947 A JP S54110947A JP 1883178 A JP1883178 A JP 1883178A JP 1883178 A JP1883178 A JP 1883178A JP S54110947 A JPS54110947 A JP S54110947A
Authority
JP
Japan
Prior art keywords
plasma arc
reverse polar
welding
polar plasma
gas
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
JP1883178A
Other languages
Japanese (ja)
Inventor
Wataru Shimada
Kazumichi Machida
Susumu Hoshinouchi
Masatake Hiramoto
Jun Ukai
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 JP1883178A priority Critical patent/JPS54110947A/en
Publication of JPS54110947A publication Critical patent/JPS54110947A/en
Pending legal-status Critical Current

Links

Landscapes

  • Arc Welding In General (AREA)

Abstract

PURPOSE: To permit a padding welding with a low dilution ratio and also to obtain stable arc by a procedure in which reverse polar plasma arc as a welding heat source is used and at the same time as a shield gas for the reverse polar plasma arc, a mixed gas composed of an inert gas and 0.1 to 1% oxygen is used.
CONSTITUTION: The reverse polar plasma arc 6 is formed by the DC welding power source 5 between the metal to be welded 1 and the non-consumption cell 2 and as the plasma working gas, the mixed gas 8 composed of the inert gas 7 and 0.0 to 1 % oxygen is applied as a shield gas, whereby the oxide film 11 on the surface of the metal 1 to be welded is removed by the cathode cleaning action of the reverse polar plasma arc 6 and thus the cleaning zone as clean ares is formed. Furthermore, in its inside, semi-molten zone 13 is formed and then the molten matal of the welding wire 9 flown into it and undergoes alloy-hardening to form the padding metal 10 on the thin boundary layer 14. Thus, it is possible to obtain stable reverse polar plasma arc and also to perform padding welding with a low dilution ratio.
COPYRIGHT: (C)1979,JPO&Japio
JP1883178A 1978-02-20 1978-02-20 Reverse polar plasma arc padding welding Pending JPS54110947A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1883178A JPS54110947A (en) 1978-02-20 1978-02-20 Reverse polar plasma arc padding welding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1883178A JPS54110947A (en) 1978-02-20 1978-02-20 Reverse polar plasma arc padding welding

Publications (1)

Publication Number Publication Date
JPS54110947A true JPS54110947A (en) 1979-08-30

Family

ID=11982499

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1883178A Pending JPS54110947A (en) 1978-02-20 1978-02-20 Reverse polar plasma arc padding welding

Country Status (1)

Country Link
JP (1) JPS54110947A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2365810A (en) * 2000-06-21 2002-02-27 Inocon Technologie Gmbh Reverse polarity dc plasma arc welding

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5127838A (en) * 1974-08-16 1976-03-09 Mitsubishi Electric Corp PURAZUMAYOSETSUHO

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5127838A (en) * 1974-08-16 1976-03-09 Mitsubishi Electric Corp PURAZUMAYOSETSUHO

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2365810A (en) * 2000-06-21 2002-02-27 Inocon Technologie Gmbh Reverse polarity dc plasma arc welding
GB2365810B (en) * 2000-06-21 2004-05-19 Inocon Technologie Gmbh Welding method and apparatus

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