US20040031775A1 - Shielding gas and arc-welding method - Google Patents

Shielding gas and arc-welding method Download PDF

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Publication number
US20040031775A1
US20040031775A1 US10/461,873 US46187303A US2004031775A1 US 20040031775 A1 US20040031775 A1 US 20040031775A1 US 46187303 A US46187303 A US 46187303A US 2004031775 A1 US2004031775 A1 US 2004031775A1
Authority
US
United States
Prior art keywords
shielding gas
volume
helium
nitrogen
carbon dioxide
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.)
Abandoned
Application number
US10/461,873
Other languages
English (en)
Inventor
Stefan Trube
Thomas Ammann
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.)
Linde GmbH
Original Assignee
Linde GmbH
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 Linde GmbH filed Critical Linde GmbH
Assigned to LINDE AKTIENGESELLSCHAFT reassignment LINDE AKTIENGESELLSCHAFT ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: AMMANN, THOMAS, TRUBE, STEFAN
Publication of US20040031775A1 publication Critical patent/US20040031775A1/en
Priority to US11/154,597 priority Critical patent/US7211765B2/en
Abandoned 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

Definitions

  • the invention relates to a shielding gas for use in the arc welding of metallic work pieces.
  • the invention further relates to a process for arc welding metallic work pieces using consumable electrodes, whereby a stream of shielding gas is supplied to the work piece, adjacent to the electrode.
  • shielding gases for use in the welding of metals under a shielding gas are known, wherein different shielding gases may be used, depending upon the composition or the material of the work piece to be welded, and/or upon the nature of the welding process.
  • Gas shielded welding can be broken down, based upon the type of electrodes used, into gas-shielded metal arc welding (MSG welding), which uses consumable electrodes, and welding processes that use non-consumable electrodes, such as tungsten inert-gas welding (TIG welding).
  • MSG welding gas-shielded metal arc welding
  • MAG welding active-gas metal arc welding
  • MIG welding inert-gas metal arc welding
  • Linde Gas AG markets two shielding gases for welding under the names CRONIGON® He 50 S or CRONIGON® He 30 S. These gas mixtures contain 0.05% by volume CO 2 , 50% by volume helium, with the remainder argon, or 0.05% by volume CO 2 , 30% by volume helium, 2% by volume H 2 , and the remainder argon (comp. for example Linde brochure “Shielding Gases for Welding”).
  • the object of the present invention is to provide a shielding gas and a process of the type described at the beginning whereby improvements on or alternatives to known shielding gases for welding are disclosed.
  • the object of the invention is further to propose shielding gases for welding with which rust-proof metallic materials, especially the above-mentioned high-temperature nickel-based alloys, but also high-alloy steels, can be welded using an MSG or MAG process.
  • a further object of the invention is to achieve the high level of corrosion resistance of the base material in the weld seam, especially with corrosion-resistant alloys.
  • the shielding gas contains no helium, it contains carbon dioxide in a proportion of between 0.001% by volume and 1.9% by volume, and
  • the shielding gas does contain helium, it contains carbon dioxide in a proportion of between 0.001% by volume and 0.9% by volume,
  • the shielding gas contains no helium, it can contain carbon dioxide in a proportion of between 0.01% by volume and 1.5% by volume and
  • the shielding gas does contain helium, it can contain carbon dioxide in a proportion of between 0.01% by volume and 0.8% by volume,
  • the helium-free shielding gas can contain 0.001 and 0.9% by volume carbon dioxide, preferably between 0.01 and 0.8% by volume carbon dioxide, in addition to argon and nitrogen.
  • a helium-free shielding gas it is understood that the shielding gas contains no helium with the exception of possible contaminations or impurities.
  • the shielding gas contains between 0.01 and 0.5% by volume carbon dioxide, preferably between 0.01 and 0.45% by volume carbon dioxide, most preferably between 0.01 and 0.1% by volume carbon dioxide.
  • the shielding gas it has proven favorable for the shielding gas to contain between 0.1 and 20% by volume nitrogen, preferably between 0.5 and 15% by volume nitrogen, particularly preferably between 1 and 10% by volume, and most preferably between 2.5 and 7.5% by volume nitrogen.
  • the shielding gas contains 70% by volume or less helium.
  • the shielding gas it is preferable for the shielding gas to contain between 1 and 50% by volume helium, preferably between 2 and 30% by volume helium, particularly preferably between 3 and 20% by volume helium, and most preferably between 5 and 10% by volume helium.
  • the shielding gas can be comprised
  • the use of a shielding gas mixture having a composition that fulfills the standards listed above for use in the MSG welding, in particular the MAG welding, of rust-proof steels, especially nickel-based materials, specialty steels, or high-alloy steels, is recommended.
  • high-temperature nickel-based alloys such as alloy 602 CA (material No. 2.4633) can be MAG welded.
  • the mechanical-technological properties of the weld seam are nearly completely retained, as compared with the base material.
  • the shielding gas specified in the invention contains argon, and if applicable helium, in addition to carbon dioxide and nitrogen.
  • the portion of CO 2 presumably promotes arc stabilization and the prevention of fusion problems.
  • the share of nitrogen presumably exerts a metallurgical influence. Also probable is a desirable effect on the absorption of nitrogen in the welding material by the CO 2 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Arc Welding In General (AREA)
  • Inorganic Insulating Materials (AREA)
US10/461,873 2000-12-15 2003-06-16 Shielding gas and arc-welding method Abandoned US20040031775A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US11/154,597 US7211765B2 (en) 2000-12-15 2005-06-17 Shielding gas and arc-welding method

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DEDE10062564.9 2000-12-15
DE10062564A DE10062564A1 (de) 2000-12-15 2000-12-15 Schutzgas und Verfahren zum Lichtbogenschweißen
PCT/EP2001/014801 WO2002047859A2 (fr) 2000-12-15 2001-12-14 Gaz inerte et procede de soudage a l'arc

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
PCT/EP2001/014801 Continuation-In-Part WO2002047859A2 (fr) 2000-12-15 2001-12-14 Gaz inerte et procede de soudage a l'arc
PCT/EP2001/014801 Continuation WO2002047859A2 (fr) 2000-12-15 2001-12-14 Gaz inerte et procede de soudage a l'arc

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US11/154,597 Division US7211765B2 (en) 2000-12-15 2005-06-17 Shielding gas and arc-welding method

Publications (1)

Publication Number Publication Date
US20040031775A1 true US20040031775A1 (en) 2004-02-19

Family

ID=7667298

Family Applications (2)

Application Number Title Priority Date Filing Date
US10/461,873 Abandoned US20040031775A1 (en) 2000-12-15 2003-06-16 Shielding gas and arc-welding method
US11/154,597 Expired - Fee Related US7211765B2 (en) 2000-12-15 2005-06-17 Shielding gas and arc-welding method

Family Applications After (1)

Application Number Title Priority Date Filing Date
US11/154,597 Expired - Fee Related US7211765B2 (en) 2000-12-15 2005-06-17 Shielding gas and arc-welding method

Country Status (7)

Country Link
US (2) US20040031775A1 (fr)
EP (1) EP1341640B1 (fr)
AT (1) ATE292538T1 (fr)
AU (1) AU2002219189A1 (fr)
CZ (1) CZ301415B6 (fr)
DE (2) DE10062564A1 (fr)
WO (1) WO2002047859A2 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105537736A (zh) * 2015-12-22 2016-05-04 渤海船舶重工有限责任公司 核电安全壳一次屏蔽结构硼铸钢焊接方法

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004021066A1 (de) * 2004-04-29 2005-11-17 Linde Ag Schutzgas-Versorgungseinrichtung zum Lichtbogen-Fügen
DE102004021065A1 (de) 2004-04-29 2005-11-24 Linde Ag Herstellung einer Schutzgasmischung zum Lichtbogen-Fügen
DE102005018876A1 (de) * 2005-04-22 2006-10-26 Linde Ag Schweißen hochfester Stähle
CA2676940C (fr) 2007-02-27 2015-06-23 Exxonmobil Upstream Research Company Soudures d'alliage resistant a la corrosion pour structures et canalisations d'acier au carbone destinees a accepter des deformations plastiques axiales elevees
WO2008116478A1 (fr) * 2007-03-23 2008-10-02 Siemens Aktiengesellschaft Mélange de gaz protecteurs et procédé de soudage
DE102015001754A1 (de) * 2015-02-26 2016-09-01 Messer Group Gmbh Schutzgas zum WIG-Schweißen ferritischer Stähle

Citations (20)

* Cited by examiner, † Cited by third party
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US2939942A (en) * 1958-07-17 1960-06-07 Smith Corp A O Method of welding stainless steel
US3620700A (en) * 1969-08-15 1971-11-16 Warren G Schlinger Recovery of entrained carbon in synthesis gas
US3925490A (en) * 1969-07-15 1975-12-09 Huels Chemische Werke Ag Hydrogenation catalysts and process for the removal of aldehydes and ketones from gaseous streams rich in carbon monoxide
US4119566A (en) * 1975-09-29 1978-10-10 Texaco Inc. Production of nitrogen-rich gas mixtures
US4256604A (en) * 1977-10-26 1981-03-17 Nippon Shokubai Kagaku Kogyo Co., Ltd. Method for mixing gases and apparatus used therefor
US4988368A (en) * 1989-12-28 1991-01-29 Shell Oil Company Method for determination of slag tap blockage
US5558791A (en) * 1992-12-12 1996-09-24 Messer Griesheim Inert gas for the arc welding of aluminum
US5667728A (en) * 1996-10-29 1997-09-16 Sealed Air Corporation Blowing agent, expandable composition, and process for extruded thermoplastic foams
US5686002A (en) * 1996-08-12 1997-11-11 Tri Tool Inc. Method of welding
US6069336A (en) * 1998-03-26 2000-05-30 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Plasma or TIG welding or cutting process with a non-oxidizing gas having a low H2 O and/or O2 impurity content
US6111219A (en) * 1999-05-24 2000-08-29 Praxair Technology, Inc. Shielding gas mixture for gas-metal arc welding
US6153163A (en) * 1998-06-03 2000-11-28 Praxair Technology, Inc. Ceramic membrane reformer
US6198068B1 (en) * 1996-11-13 2001-03-06 Aga Ab Method for plasma brazing
US6204477B1 (en) * 1997-12-31 2001-03-20 Wsi Welding Services, Inc. Method to eliminate weld solidification cracking of 312 stainless steel overlay and to minimize the overlay's thermal expansion mismatch with carbon steel or low alloy steel substrate
US6315965B1 (en) * 1995-06-07 2001-11-13 Degesch De Chile Ltda Phosphine generator for producing phosphine-containing gas
US20020008094A1 (en) * 2000-05-31 2002-01-24 L'air Liquid, Societe Anonyme Pour L'etude Et L'explooitation Des Procedes Georges Laser/arc hybrid welding process with appropriate gas mixture
US6570127B2 (en) * 2001-05-03 2003-05-27 Praxair Technology, Inc. Shielding gas mixture for MIG brazing
US20030173343A1 (en) * 2000-08-21 2003-09-18 Olivier Matile Method and installation for hybrid laser/arc welding using a power-diode laser
US6624387B1 (en) * 1999-10-28 2003-09-23 Linde Aktiengesellschaft Process for MSG-soldering and use of a shielding gas
US6735980B2 (en) * 2002-01-04 2004-05-18 Air Products And Chemicals, Inc. Recovery of krypton and xenon

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DE680802C (de) 1938-04-15 1939-09-08 Eisenwerk Wanheim G M B H Elastische Kupplung
FR1120500A (fr) 1952-06-14 1956-07-06 Kleindienst & Co Dispositif pour vaporiser et mettre en forme les vêtements
FR1463485A (fr) * 1966-01-12 1966-12-23 Soudure Electr Autogene Mélange gazeux de protection d'un bain de soudure dans un procédé de soudage automatique de joints verticaux
DD133538A1 (de) * 1977-11-02 1979-01-10 Manfred Poehler Verfahren zur anwendung eines gasgemisches als schutzgas
JPS5524739A (en) * 1978-08-11 1980-02-22 Hitachi Ltd Steel welding method
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JPH02235576A (ja) * 1989-03-07 1990-09-18 Iwatani Internatl Corp ガスシールド消耗電極式アーク溶接用のシールドガス
JP2736182B2 (ja) * 1991-02-28 1998-04-02 ファナック株式会社 レーザ装置及びレーザ溶接方法
FR2719514B1 (fr) * 1994-05-04 1996-06-07 Air Liquide Mélange gazeux de protection et procédé de soudage à l'arc de pièces en aciers inoxydables.
DE19704513C1 (de) * 1997-02-06 1998-03-05 Linde Ag Metallschutzgasschweißen mit rotierendem Lichtbogen
EP0949041A1 (fr) * 1998-04-08 1999-10-13 Linde Aktiengesellschaft Gaz de protection pour le soudage TIG à courant continu d'aluminium
US6315985B1 (en) * 1999-06-18 2001-11-13 3M Innovative Properties Company C-17/21 OH 20-ketosteroid solution aerosol products with enhanced chemical stability
FR2829414B1 (fr) * 2001-09-13 2003-10-31 Air Liquide Procede de soudage hybride laser-arc avec ajustage des debits de gaz

Patent Citations (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2939942A (en) * 1958-07-17 1960-06-07 Smith Corp A O Method of welding stainless steel
US3925490A (en) * 1969-07-15 1975-12-09 Huels Chemische Werke Ag Hydrogenation catalysts and process for the removal of aldehydes and ketones from gaseous streams rich in carbon monoxide
US3620700A (en) * 1969-08-15 1971-11-16 Warren G Schlinger Recovery of entrained carbon in synthesis gas
US4119566A (en) * 1975-09-29 1978-10-10 Texaco Inc. Production of nitrogen-rich gas mixtures
US4256604A (en) * 1977-10-26 1981-03-17 Nippon Shokubai Kagaku Kogyo Co., Ltd. Method for mixing gases and apparatus used therefor
US4988368A (en) * 1989-12-28 1991-01-29 Shell Oil Company Method for determination of slag tap blockage
US5558791A (en) * 1992-12-12 1996-09-24 Messer Griesheim Inert gas for the arc welding of aluminum
US6315965B1 (en) * 1995-06-07 2001-11-13 Degesch De Chile Ltda Phosphine generator for producing phosphine-containing gas
US5686002A (en) * 1996-08-12 1997-11-11 Tri Tool Inc. Method of welding
US5667728A (en) * 1996-10-29 1997-09-16 Sealed Air Corporation Blowing agent, expandable composition, and process for extruded thermoplastic foams
US6198068B1 (en) * 1996-11-13 2001-03-06 Aga Ab Method for plasma brazing
US6204477B1 (en) * 1997-12-31 2001-03-20 Wsi Welding Services, Inc. Method to eliminate weld solidification cracking of 312 stainless steel overlay and to minimize the overlay's thermal expansion mismatch with carbon steel or low alloy steel substrate
US6069336A (en) * 1998-03-26 2000-05-30 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Plasma or TIG welding or cutting process with a non-oxidizing gas having a low H2 O and/or O2 impurity content
US6153163A (en) * 1998-06-03 2000-11-28 Praxair Technology, Inc. Ceramic membrane reformer
US6111219A (en) * 1999-05-24 2000-08-29 Praxair Technology, Inc. Shielding gas mixture for gas-metal arc welding
US6624387B1 (en) * 1999-10-28 2003-09-23 Linde Aktiengesellschaft Process for MSG-soldering and use of a shielding gas
US20020008094A1 (en) * 2000-05-31 2002-01-24 L'air Liquid, Societe Anonyme Pour L'etude Et L'explooitation Des Procedes Georges Laser/arc hybrid welding process with appropriate gas mixture
US20030173343A1 (en) * 2000-08-21 2003-09-18 Olivier Matile Method and installation for hybrid laser/arc welding using a power-diode laser
US6570127B2 (en) * 2001-05-03 2003-05-27 Praxair Technology, Inc. Shielding gas mixture for MIG brazing
US6735980B2 (en) * 2002-01-04 2004-05-18 Air Products And Chemicals, Inc. Recovery of krypton and xenon

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105537736A (zh) * 2015-12-22 2016-05-04 渤海船舶重工有限责任公司 核电安全壳一次屏蔽结构硼铸钢焊接方法

Also Published As

Publication number Publication date
AU2002219189A1 (en) 2002-06-24
CZ20031575A3 (cs) 2004-01-14
US7211765B2 (en) 2007-05-01
EP1341640B1 (fr) 2005-04-06
EP1341640A2 (fr) 2003-09-10
DE10062564A1 (de) 2002-06-20
CZ301415B6 (cs) 2010-02-24
DE50105858D1 (de) 2005-05-12
WO2002047859A2 (fr) 2002-06-20
WO2002047859A3 (fr) 2002-08-22
ATE292538T1 (de) 2005-04-15
US20050230357A1 (en) 2005-10-20

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Legal Events

Date Code Title Description
AS Assignment

Owner name: LINDE AKTIENGESELLSCHAFT, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:TRUBE, STEFAN;AMMANN, THOMAS;REEL/FRAME:014533/0660

Effective date: 20030617

STCB Information on status: application discontinuation

Free format text: EXPRESSLY ABANDONED -- DURING EXAMINATION