CN1080160C - 用于钨极惰性气体保护焊接的保护气混合物 - Google Patents

用于钨极惰性气体保护焊接的保护气混合物 Download PDF

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Publication number
CN1080160C
CN1080160C CN97117931A CN97117931A CN1080160C CN 1080160 C CN1080160 C CN 1080160C CN 97117931 A CN97117931 A CN 97117931A CN 97117931 A CN97117931 A CN 97117931A CN 1080160 C CN1080160 C CN 1080160C
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Prior art keywords
gas mixture
welding
tungsten
mixture
inert gas
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Expired - Fee Related
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CN97117931A
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CN1176161A (zh
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H·科勒
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Messer Griesheim GmbH
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Messer Griesheim GmbH
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    • 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
    • B23K9/00—Arc welding or cutting
    • B23K9/16—Arc welding or cutting making use of shielding gas
    • B23K9/167—Arc welding or cutting making use of shielding gas and of a non-consumable electrode

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Arc Welding In General (AREA)
  • Powder Metallurgy (AREA)
  • Chemical Vapour Deposition (AREA)

Abstract

用于奥氏体材料钨极惰性气体保护焊接的保护气混合物，其特征为，含有体积含量为2.0-3.7%的N2；体积含量为0.5-1.2%的H2；其余为氩气。

Description

用于钨极惰性气体保护焊接的保护气混合物
本发明涉及用于钨极惰性气体保护焊接的保护气混合物。本发明尤其涉及用于钨极惰性气体轨道保护焊接(WIG-轨道(Orbital)-保护焊接)奥氏体材料即耐腐蚀钢的管材的保护气混合物，它们尤其用于化学工业中。
在WIG-焊接中光弧在钨电极和工件之间的惰性气体保护气流中燃烧。通常氩气用作保护气。
在通常的奥氏体钢中铁氧体含量约为4-5％。由于光弧的加热铁氧体积聚在焊接处，并形成所谓的铁氧体斑点(Nester)。这些铁氧体斑点导致焊缝的腐蚀。
本发明的任务是提供用于尤其是奥氏体钢WIG-焊接的保护气混合物，其将焊缝的易腐蚀性降低到了相当于基本材料腐蚀性能的程度。
为了解决此任务，按照本发明的保护气混合物包括体积含量为2.0-3.7％的N2和体积含量为0.5-1.2％的H2与基本组分氩气的混合物。
在应用本发明的保护气混合物条件下的WIG-焊接中焊接处/焊缝中的铁氧体含量降低到了相当于基本材料铁氧体含量的程度。从而预防了焊缝的易腐蚀性。
N2已知是作为奥氏体组份(Bildner)。然而氩气中仅加有N2的保护气混合物在WIG-焊接中将导致钨电极的迅速磨损。而向其中加入一定体积含量的H2会有相反的作用。
在实践中试验的保护气混合物含量如下：3％N2；0.7％H2，其余为氩气。使用这种保护气混合物的使用寿命试验不仅在其降低焊接处的铁氧体含量方面而且在其提高钨电极使用寿命方面都有好的结果。

Claims (2)

1.用于奥氏体材料钨极惰性气体保护焊接的保护气混合物，其特征为，含有体积含量为2.0-3.7％的N2；体积含量为0.5-1.2％的H2；其余为氩气。
2.按权利要求1的保护气混合物，其特征为，N2和H2的体积含量分别为3％和0.7％。
CN97117931A 1996-09-03 1997-09-02 用于钨极惰性气体保护焊接的保护气混合物 Expired - Fee Related CN1080160C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19635497A DE19635497A1 (de) 1996-09-03 1996-09-03 Schutzgasgemisch für Verwendung beim Wolfram-Inertgas-Schweißen
DE19635497.8 1996-09-03

Publications (2)

Publication Number Publication Date
CN1176161A CN1176161A (zh) 1998-03-18
CN1080160C true CN1080160C (zh) 2002-03-06

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ID=7804357

Family Applications (1)

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CN97117931A Expired - Fee Related CN1080160C (zh) 1996-09-03 1997-09-02 用于钨极惰性气体保护焊接的保护气混合物

Country Status (5)

Country Link
EP (1) EP0826456B1 (zh)
CN (1) CN1080160C (zh)
AT (1) ATE213191T1 (zh)
DE (2) DE19635497A1 (zh)
ES (1) ES2172720T3 (zh)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2809647B1 (fr) * 2000-05-31 2002-08-30 Air Liquide Procede de soudage hybride laser-arc avec melange gazeux approprie
EP1595633B2 (de) * 2004-05-12 2013-10-09 Siemens Aktiengesellschaft Verwendung eines Schutzgasgemisches beim Schweissen
DE102007033291A1 (de) 2007-07-17 2009-01-22 Linde Ag Verfahren zum Lichtbogenfügen
FR2962671B1 (fr) * 2010-07-13 2013-03-08 Air Liquide Procede de soudage a l'arc et gaz inertes de pieces metalliques aluminiees
DE102015001754A1 (de) 2015-02-26 2016-09-01 Messer Group Gmbh Schutzgas zum WIG-Schweißen ferritischer Stähle
WO2017026123A1 (en) * 2015-08-12 2017-02-16 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Weld joint, welding material used therefor, and welding method
DE102016000218A1 (de) 2016-01-09 2017-07-13 Messer Group Gmbh Verfahren zum Schweißen austenitischer Werkstoffe
CN112453641A (zh) * 2020-11-16 2021-03-09 四川石油天然气建设工程有限责任公司 一种耐蚀合金复合管的骑坐式支管焊接工艺
CN112439979A (zh) * 2020-11-16 2021-03-05 四川石油天然气建设工程有限责任公司 一种耐蚀合金复合管的插入式纯材支管焊接工艺
CN112453652A (zh) * 2020-11-16 2021-03-09 四川石油天然气建设工程有限责任公司 耐蚀合金复合管焊接用含氢混合保护气体及其焊接工艺

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59202182A (ja) * 1983-04-28 1984-11-15 Toyota Central Res & Dev Lab Inc ア−ク溶接方法
EP0502318A1 (de) * 1991-03-05 1992-09-09 Messer Griesheim Gmbh Schutzgas zum WIG-, MIG-, MAG- und Plasmaschweissen
US5306358A (en) * 1991-08-20 1994-04-26 Haynes International, Inc. Shielding gas to reduce weld hot cracking

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE7315400L (zh) * 1973-11-14 1975-05-15 Aga Ab
EP0163379A3 (en) * 1984-05-31 1987-03-25 Allegheny Ludlum Steel Corporation Method of welding nitrogen-containing alloys

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59202182A (ja) * 1983-04-28 1984-11-15 Toyota Central Res & Dev Lab Inc ア−ク溶接方法
EP0502318A1 (de) * 1991-03-05 1992-09-09 Messer Griesheim Gmbh Schutzgas zum WIG-, MIG-, MAG- und Plasmaschweissen
US5306358A (en) * 1991-08-20 1994-04-26 Haynes International, Inc. Shielding gas to reduce weld hot cracking

Also Published As

Publication number Publication date
EP0826456A1 (de) 1998-03-04
ES2172720T3 (es) 2002-10-01
DE19635497A1 (de) 1998-03-05
DE59706364D1 (de) 2002-03-21
CN1176161A (zh) 1998-03-18
EP0826456B1 (de) 2002-02-13
ATE213191T1 (de) 2002-02-15

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