FR2375945A1 - Inert gas for arc welding processes - using mixt. of argon, carbon di:oxide and hydrogen - Google Patents

Inert gas for arc welding processes - using mixt. of argon, carbon di:oxide and hydrogen

Info

Publication number
FR2375945A1
FR2375945A1 FR7639530A FR7639530A FR2375945A1 FR 2375945 A1 FR2375945 A1 FR 2375945A1 FR 7639530 A FR7639530 A FR 7639530A FR 7639530 A FR7639530 A FR 7639530A FR 2375945 A1 FR2375945 A1 FR 2375945A1
Authority
FR
France
Prior art keywords
gas
arc
mixt
rtm
pref
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.)
Granted
Application number
FR7639530A
Other languages
French (fr)
Other versions
FR2375945B1 (en
Inventor
Roger Sicot
Claude Hentzien
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.)
Lincoln Electric Co France SA
Original Assignee
La Soudure Autogene Francaise
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 La Soudure Autogene Francaise filed Critical La Soudure Autogene Francaise
Priority to FR7639530A priority Critical patent/FR2375945A1/en
Priority to IT3099077A priority patent/IT1089986B/en
Priority to BE183651A priority patent/BE862086A/en
Priority to DE19772758474 priority patent/DE2758474A1/en
Priority to CA294,025A priority patent/CA1089027A/en
Priority to SE7714866A priority patent/SE425766B/en
Priority to JP15859177A priority patent/JPS5846391B2/en
Publication of FR2375945A1 publication Critical patent/FR2375945A1/en
Application granted granted Critical
Publication of FR2375945B1 publication Critical patent/FR2375945B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
    • B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
    • B23K35/38—Selection of media, e.g. special atmospheres for surrounding the working area
    • B23K35/383—Selection of media, e.g. special atmospheres for surrounding the working area mainly containing noble gases or nitrogen

Abstract

Ternary gas mixt. providing protection during the arc-welding or -resurfacing of alloy steels, where the gas contains by vol. 2.5-3.5% CO2, 0.8-1.2% H2, remainder argon. The pref. gas mixt. (A) is 96% Ar, 3% CO2, 1% H2. The gas is pref. used to protect a consumable alloy steel electrode wire and the molten weld pool formed by the arc, esp. where the transfer of the molten wire is made by:- (1) sprayed drops, known as the "Spray-Arc" (RTM) method; (2) repeated short circuits between the wire and the bath using short arces and the process "Short Arc" (RTM); or (3) controlled pulses by the process known as "Arc-Pulse" (RTM). When welding by method (2), the workieces are pref. 0.5-1.5mm thick. The gas may also be used in welding or resurfacing austenitic steels, which may contain a small amt. of ferrite, e.g. Ni-Cr steels. The presence of CO2 permits the transfer of metal in a finely divided state, thus avoiding projections, and the H2 exerts a pickling action so correct wetting is obtd. without porosity; the gas also prevents an increase in the % C in the weld deposit and the expensive gas He is not used in the mixt.
FR7639530A 1976-12-30 1976-12-30 Inert gas for arc welding processes - using mixt. of argon, carbon di:oxide and hydrogen Granted FR2375945A1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
FR7639530A FR2375945A1 (en) 1976-12-30 1976-12-30 Inert gas for arc welding processes - using mixt. of argon, carbon di:oxide and hydrogen
IT3099077A IT1089986B (en) 1976-12-30 1977-12-20 TERNARY MIXTURE OF PROTECTIVE GAS FOR WELDING, OR REFILLING STEELS, AT THE ARC
BE183651A BE862086A (en) 1976-12-30 1977-12-20 TERNARY MIXTURE OF PROTECTIVE GAS FOR WELDING OR ARC CHARGING OF STEELS
DE19772758474 DE2758474A1 (en) 1976-12-30 1977-12-28 TERNAERES PROTECTIVE GAS MIXTURE FOR ARC WELDING "EN OR HARD WELDING" EN
CA294,025A CA1089027A (en) 1976-12-30 1977-12-29 Ternary protective gas mixture and arc welding or hard-facing of steels
SE7714866A SE425766B (en) 1976-12-30 1977-12-29 TERN.R PROTECTIVE GAS BLEND FOR LIGHT REAR WELDING
JP15859177A JPS5846391B2 (en) 1976-12-30 1977-12-30 Arc welding or arc metallization process using three-phase protective gas mixture for arc welding or arc metallization of steel and said three-phase protective gas mixture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7639530A FR2375945A1 (en) 1976-12-30 1976-12-30 Inert gas for arc welding processes - using mixt. of argon, carbon di:oxide and hydrogen

Publications (2)

Publication Number Publication Date
FR2375945A1 true FR2375945A1 (en) 1978-07-28
FR2375945B1 FR2375945B1 (en) 1981-05-29

Family

ID=9181713

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7639530A Granted FR2375945A1 (en) 1976-12-30 1976-12-30 Inert gas for arc welding processes - using mixt. of argon, carbon di:oxide and hydrogen

Country Status (7)

Country Link
JP (1) JPS5846391B2 (en)
BE (1) BE862086A (en)
CA (1) CA1089027A (en)
DE (1) DE2758474A1 (en)
FR (1) FR2375945A1 (en)
IT (1) IT1089986B (en)
SE (1) SE425766B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1153691A2 (en) * 2000-05-12 2001-11-14 Toyo Engineering Corporation Method of welding high chromium austenitic stainless steel pipe and shielding gas mixture for welding
EP2907610A1 (en) * 2014-02-18 2015-08-19 Linde Aktiengesellschaft Protecting gas and method of metal gas-shielded welding for the reduction of pollutants

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4973822A (en) * 1990-02-14 1990-11-27 Union Carbide Industrial Gases Technology Corporation Gas metal arc welding and shielding gas therefor

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1449716A (en) * 1965-06-02 1966-05-06 Soudure Autogene Francaise Protective atmosphere for arc welding and surfacing of steels
GB1358985A (en) * 1970-07-06 1974-07-03 British Oxygen Co Ltd Arc welding

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1153691A2 (en) * 2000-05-12 2001-11-14 Toyo Engineering Corporation Method of welding high chromium austenitic stainless steel pipe and shielding gas mixture for welding
US6564990B2 (en) * 2000-05-12 2003-05-20 Toyo Engineering Corporation Method of welding high chromium austenitic stainless steel pipe and shielding gas mixture for welding
EP1153691A3 (en) * 2000-05-12 2003-07-16 Toyo Engineering Corporation Method of welding high chromium austenitic stainless steel pipe and shielding gas mixture for welding
EP2907610A1 (en) * 2014-02-18 2015-08-19 Linde Aktiengesellschaft Protecting gas and method of metal gas-shielded welding for the reduction of pollutants
WO2015124283A1 (en) * 2014-02-18 2015-08-27 Linde Aktiengesellschaft Inert gas and method of metal inert-gas welding for pollutant reduction

Also Published As

Publication number Publication date
DE2758474A1 (en) 1978-07-13
BE862086A (en) 1978-06-20
FR2375945B1 (en) 1981-05-29
JPS5846391B2 (en) 1983-10-15
JPS5388643A (en) 1978-08-04
IT1089986B (en) 1985-06-18
SE7714866L (en) 1978-07-01
SE425766B (en) 1982-11-08
CA1089027A (en) 1980-11-04

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