JPS56160879A - High-current density gas shielded vertical position multilayer welding method - Google Patents

High-current density gas shielded vertical position multilayer welding method

Info

Publication number
JPS56160879A
JPS56160879A JP6331480A JP6331480A JPS56160879A JP S56160879 A JPS56160879 A JP S56160879A JP 6331480 A JP6331480 A JP 6331480A JP 6331480 A JP6331480 A JP 6331480A JP S56160879 A JPS56160879 A JP S56160879A
Authority
JP
Japan
Prior art keywords
current density
gas
vertical position
wire
welding method
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
JP6331480A
Other languages
Japanese (ja)
Inventor
Nakatsugu Abe
Tsutomu Ikoma
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.)
JFE Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan 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 NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP6331480A priority Critical patent/JPS56160879A/en
Publication of JPS56160879A publication Critical patent/JPS56160879A/en
Pending legal-status Critical Current

Links

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  • Arc Welding In General (AREA)

Abstract

PURPOSE: To obtain a highly tenaceous, sound weld zone free from weld defect with high efficiency by enlarging the length of protrusion of a small-diameter composite wire and performing vertical position multilayer welding at high-current density by using CO2 shield gas.
CONSTITUTION: A small-diameter composite wire having 1.2W2.0mm diameter in which the sectional area of the part of combined fluxes and iron powders occupies 30W35% of the total sectional area of the wire is used. The length of protrusion of the wire is made to 35W70mm and CO2 gas or mixed gas of CO2 gas and Ar gas is used as a shield gas. The first layer is welded at 220W330A/mm2 current density, and the second and subsequent pass is welded at 230W450A/mm2 current density and at higher current density than that for the first layer. At this time, vertical position welding is performed with layer numbers of at least ≥2 passes in the one side and ≥3 passes in the total of both sides.
COPYRIGHT: (C)1981,JPO&Japio
JP6331480A 1980-05-15 1980-05-15 High-current density gas shielded vertical position multilayer welding method Pending JPS56160879A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6331480A JPS56160879A (en) 1980-05-15 1980-05-15 High-current density gas shielded vertical position multilayer welding method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6331480A JPS56160879A (en) 1980-05-15 1980-05-15 High-current density gas shielded vertical position multilayer welding method

Publications (1)

Publication Number Publication Date
JPS56160879A true JPS56160879A (en) 1981-12-10

Family

ID=13225687

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6331480A Pending JPS56160879A (en) 1980-05-15 1980-05-15 High-current density gas shielded vertical position multilayer welding method

Country Status (1)

Country Link
JP (1) JPS56160879A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04135950U (en) * 1991-06-12 1992-12-17 日新電機株式会社 Arc power supply device for arc type evaporation source

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5395849A (en) * 1977-02-02 1978-08-22 Sumitomo Metal Ind Ltd Gas shielded arc welding
JPS53130251A (en) * 1977-04-21 1978-11-14 Nippon Kokan Kk <Nkk> Gas shielded vertical position welding using high current density

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5395849A (en) * 1977-02-02 1978-08-22 Sumitomo Metal Ind Ltd Gas shielded arc welding
JPS53130251A (en) * 1977-04-21 1978-11-14 Nippon Kokan Kk <Nkk> Gas shielded vertical position welding using high current density

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04135950U (en) * 1991-06-12 1992-12-17 日新電機株式会社 Arc power supply device for arc type evaporation source

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