DE19849510A1 - Process for arc brazing under protective gas - Google Patents
Process for arc brazing under protective gasInfo
- Publication number
- DE19849510A1 DE19849510A1 DE19849510A DE19849510A DE19849510A1 DE 19849510 A1 DE19849510 A1 DE 19849510A1 DE 19849510 A DE19849510 A DE 19849510A DE 19849510 A DE19849510 A DE 19849510A DE 19849510 A1 DE19849510 A1 DE 19849510A1
- Authority
- DE
- Germany
- Prior art keywords
- gas mixture
- mig
- mag
- brazing
- oxygen
- 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.)
- Ceased
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
-
- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/34—Coated articles, e.g. plated or painted; Surface treated articles
- B23K2101/35—Surface treated articles
-
- 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
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/02—Iron or ferrous alloys
- B23K2103/04—Steel or steel alloys
-
- 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
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
- B23K35/302—Cu as the principal constituent
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
Abstract
Description
Die Erfindung betrifft ein Schutzgasgemisch zum MIG-/MAG-Hartlöten mit Argon als Hauptgaskomponente und ein Verfahren zum MIG-/MAG- Hartlöten mit dem Schutzgasgemisch.The invention relates to a protective gas mixture for MIG / MAG brazing with argon as the main gas component and a process for MIG / MAG Brazing with the protective gas mixture.
Zum Verbinden von verzinkten Blechen werden derzeit Schutzgase zum MAG-Schweißen mit massivem Stahldraht und Schutzgasen mit Aktivgaskomponenten ≧4,0 Vol.-% (O2 oder CO2) verwendet. Daneben kommt das MIG-Löten unter reinem Inertgas (Argon/Helium) zum Einsatz. Hierbei werden zum Beispiel hochkupferhaltige Lötdrahtelektroden eingesetzt, die bei Verwendung von reinem Inertgas in vielen Fällen einen schlechteren Schmelzfluß bewirken.Shielding gases for MAG welding with solid steel wire and shielding gases with active gas components ≧ 4.0% by volume (O 2 or CO 2 ) are currently used to connect galvanized sheets. MIG soldering under pure inert gas (argon / helium) is also used. Here, for example, high copper-containing solder wire electrodes are used, which in many cases cause a poorer melt flow when using pure inert gas.
Das Verschweißen oder Hartlöten verzinkter Werkstoffe, insbesondere dünner verzinkter Stahlbleche, ist problematisch, da es bei hohen Temperaturen, wie beispielsweise beim MAG-Schweißen, zu einer Zinkverdampfung kommt.The welding or brazing of galvanized materials, in particular thin galvanized steel sheets, is problematic since it is at high Temperatures, such as during MAG welding, to one Zinc evaporation is coming.
Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren zum Hartlöten von verzinkten Werkstoffen zu schaffen, wobei eine Zinkverdampfung und die Spritzerbildung reduziert und die Tropfenablösung bei guter Flankenbemessung verbessert wird.The invention has for its object a method for brazing of galvanized materials to create a zinc evaporation and reduces spattering and droplet detachment with good Edge dimensioning is improved.
Es wurde gefunden, daß beim MIG-/MAG-Hartlöten von verzinkten Werkstoffen wie dünnen, verzinkten Stahlblechen mit hochkupferhaltigem Lötdraht bei Verwendung von Schutzgasen auf Argon-Basis mit Zusätzen eines oder mehrerer sauerstoffhaltiger Gase, die im Sauerstoffgehalt einem Anteil von 0,3 bis 0,8 Vol.-% von Sauerstoffgas entsprechen, wobei die Zusätze mindestens 0,2 Vol.% Sauerstoffgas enthalten, unerwartet gute Ergebnisse bezüglich der Vermeidung von Zinkverdampfung, der Spritzerbildung, der Verbesserung der Lichtbogenstabilität und im Schmelzflußverhalten erzielt werden.It has been found that in MIG / MAG brazing of galvanized Materials such as thin, galvanized steel sheets high copper-containing solder wire when using protective gases Argon base with addition of one or more oxygen-containing gases, which in the oxygen content of 0.3 to 0.8 vol .-% of Correspond to oxygen gas, the additives being at least 0.2% by volume Contain oxygen gas, unexpectedly good results regarding the Avoidance of zinc evaporation, the formation of splashes, the Improve arc stability and melt flow behavior be achieved.
Gelöst wurde die Aufgabe somit durch ein Schutzgasgemisch gemäß Anspruch 1 und durch ein Verfahren mit den Merkmalen gemäß Anspruch 3. Vorteilhafte Ausgestaltungen sind in den Unteransprüchen aufgeführt.The task was therefore solved by a protective gas mixture in accordance with Claim 1 and by a method with the features according to Claim 3. Advantageous refinements are in the subclaims listed.
Das Schutzgasgemisch mit Argon als Hauptkomponente (in der Regel mindestens 99 Vol.-% Argon) enthält vorzugsweise Sauerstoff. Ist Sauerstoff allein als sauerstoffhaltiges Gas in dem Schutzgasgemisch enthalten, dann beträgt der Zusatz vorteilhaft 0,2 bis 0,6 Vol.-% O2, vorzugsweise von 0,4 bis 0,6 Vol.-% O2, insbesondere um 0,5 Vol.-% O2.The protective gas mixture with argon as the main component (generally at least 99% by volume argon) preferably contains oxygen. If oxygen alone is contained in the protective gas mixture as an oxygen-containing gas, the addition is advantageously from 0.2 to 0.6% by volume of O 2 , preferably from 0.4 to 0.6% by volume of O 2 , in particular around 0 5 vol.% O 2 .
Verzinkte Werkstoffe sind beispielsweise verzinkte Stahlbleche oder Stahlprofile, bevorzugt Stahlbleche mit einer Dicke im Bereich von 0,5 bis 1 mm, in einigen Fällen auch bis zu 5 mm, besonders bevorzugt 0,7 bis 0,8 mm, insbesondere 0,75 mm. Galvanized materials are, for example, galvanized steel sheets or Steel profiles, preferably steel sheets with a thickness in the range of 0.5 up to 1 mm, in some cases also up to 5 mm, particularly preferably 0.7 up to 0.8 mm, in particular 0.75 mm.
Die Werkstoffe sind in der Regel galvanisch-, sensimir-, feuer-, buna- oder granocoat-verzinkt. Die Verzinkung hat in der Regel eine Schichtdicke im Bereich von 10 bis 50 µm.The materials are usually galvanic, sensimir, fire, buna or galvanized with granocoat. The galvanizing usually has one Layer thickness in the range from 10 to 50 µm.
Das Verfahren zum MIG-/MAG-Hartlöten arbeitet mit einer abschmelzenden und kontinuierlich zugeführten Drahtelektrode, vorzugsweise mit einer hochkupferhaltigen Drahtelektrode mit geringen Anteilen von Al, Si oder Sn, besonders bevorzugt aus CuSi3. Die Drahtelektrode hat in der Regel einen Durchmesser im Bereich von 0,8 bis 1,6 mm. Vorzugsweise wird mit 8-15 mm freier Drahtlänge bei 0,8 mm Drahtdurchmesser, mit 9-16 mm freier Drahtlänge bei 1,0 mm Drahtdurchmesser und mit 10-17 mm freier Drahtlänge bei 1,2 mm Drahtdurchmesser gearbeitet. Vorzugsweise wird das Verfahren im Niederstrombereich durchgeführt, in der Regel im Bereich von 50-180 A (Ampere), besonders vorteilhaft im Bereich von 60-120 A. Die Drahtvorschubgeschwindigkeit liegt vorzugsweise im Bereich von 3,5 bis 8 m/Min., besonders bevorzugt im Bereich von 4,5 bis 7 m/Min., insbesondere im Bereich von 5 bis 6,5 m/Min.The process for MIG / MAG brazing works with one melting and continuously supplied wire electrode, preferably with a low copper wire electrode Al, Si or Sn, particularly preferably made of CuSi3. The The wire electrode usually has a diameter in the range of 0.8 up to 1.6 mm. Preferably with 8-15 mm free wire length at 0.8 mm Wire diameter, with 9-16 mm free wire length at 1.0 mm Wire diameter and with 10-17 mm free wire length at 1.2 mm Wire diameter worked. The method is preferably carried out in Low current range, usually in the range of 50-180 A (Ampere), particularly advantageous in the range of 60-120 A. The Wire feed speed is preferably in the range of 3.5 up to 8 m / min., particularly preferably in the range from 4.5 to 7 m / min., especially in the range of 5 to 6.5 m / min.
Das Verfahren wird zum Beispiel eingesetzt in den Fertigungsbereichen der Fahrzeugindustrie, der Klimatechnik und der Baubranche.The process is used, for example, in the production areas the automotive industry, air conditioning technology and the construction industry.
Als besondere Anwendungskriterien gelten die Spritzerbildung und Zinkverdampfung, die sich erheblich reduzieren lassen.Splatter formation and are considered special application criteria Zinc evaporation, which can be significantly reduced.
Darüber hinaus wird insbesondere beim MAG-Löten die Tropfenablösung im Impuls- und auch im Kurzlichtbogenbereich verbessert bei guter Flankenbenetzung.In addition, especially with MAG soldering Drop detachment in the pulse and also in the short arc area improved with good flank wetting.
Man kann also mit dem genannten Verfahren in Verbindung mit den entsprechenden Schutzgasen wirtschaftlicher arbeiten und hat gleichzeitig ein gutes Nahtbild und einen sicheren Prozeßablauf, der auch vom Anwender leicht zu beherrschen ist.So you can use the method mentioned in conjunction with appropriate protective gases work more economically and has at the same time a good seam appearance and a safe process flow that is easy for the user to master.
Das Schutzgasgemisch liefert optimale Ergebnisse bei folgenden
Verfahrensbedingungen:
Werkstück: 0,5 bis 5,0 mm
Lötdraht: 1,0 ∅
Drahtvorschub: 5,0 bis 6,5 m/Min.
Stromstärke: 60 bis 120 A
Brennerführung: 0 bis 15° stechendThe protective gas mixture delivers optimal results under the following process conditions:
Workpiece: 0.5 to 5.0 mm
Solder wire: 1.0 ∅
Wire feed: 5.0 to 6.5 m / min.
Current: 60 to 120 A.
Torch guidance: piercing 0 to 15 °
Claims (5)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19849510A DE19849510A1 (en) | 1998-10-27 | 1998-10-27 | Process for arc brazing under protective gas |
PCT/EP1999/007663 WO2000024545A1 (en) | 1998-10-27 | 1999-10-12 | Method for arc brazing using an inert gas |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19849510A DE19849510A1 (en) | 1998-10-27 | 1998-10-27 | Process for arc brazing under protective gas |
Publications (1)
Publication Number | Publication Date |
---|---|
DE19849510A1 true DE19849510A1 (en) | 2000-05-04 |
Family
ID=7885804
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19849510A Ceased DE19849510A1 (en) | 1998-10-27 | 1998-10-27 | Process for arc brazing under protective gas |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE19849510A1 (en) |
WO (1) | WO2000024545A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1462207A1 (en) * | 2003-03-29 | 2004-09-29 | Grillo-Werke AG | Welding, soldering or brazing method under a protective atmosphere of metallic workpieces using a Zn/Al filler material |
EP1757401A1 (en) * | 2005-08-26 | 2007-02-28 | Linde Aktiengesellschaft | Process for arc welding |
WO2007033916A1 (en) * | 2005-09-20 | 2007-03-29 | Messer Group Gmbh | Pollutant-reducing protective gas mixture for the mag welding of unalloyed or low-alloyed steels |
CN1318183C (en) * | 2001-05-03 | 2007-05-30 | 普莱克斯技术有限公司 | Shielding gas mixture for mig brazing |
EP1987901A1 (en) * | 2007-05-04 | 2008-11-05 | Linde Aktiengesellschaft | Method of light arc joining under a protective gas comprising Argon, Helium and Oxygen and/or Carbon dioxide |
CN114453712A (en) * | 2021-12-06 | 2022-05-10 | 河钢股份有限公司 | Application of ternary mixed protective gas in gas metal arc welding |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19952043A1 (en) * | 1999-10-28 | 2001-05-03 | Linde Gas Ag | Process for metal-protective gas soldering of metallic workpieces uses solder material and an electric arc with melting or non-melting electrodes in the presence of a protective gas having an inert component and an active component |
DE10162937A1 (en) * | 2001-12-20 | 2003-07-03 | Linde Ag | Process for joining different types of compounds under protective gas |
US7161109B2 (en) | 2003-08-18 | 2007-01-09 | Praxair Technology, Inc. | Gas metal arc welding of coated steels and shielding gas therefor |
SG11201506773UA (en) | 2013-02-28 | 2015-09-29 | United Technologies Corp | System and method low heat weld |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB807037A (en) * | 1957-12-21 | 1959-01-07 | Union Carbide Corp | Gas-shielded metal arc welding |
US3557340A (en) * | 1969-04-04 | 1971-01-19 | Union Carbide Corp | Selenium bearing wire for steel welding |
GB1378091A (en) * | 1971-01-07 | 1974-12-18 | British Oxygen Co Ltd | Shielding gas |
SE447973B (en) * | 1985-05-22 | 1987-01-12 | Aga Ab | PROTECTIVE GAS PROTECTIVE GAS |
SE9601109A0 (en) * | 1996-03-22 | 1997-09-23 | Aga Ab | Soldering process using a consumable wire electrode |
-
1998
- 1998-10-27 DE DE19849510A patent/DE19849510A1/en not_active Ceased
-
1999
- 1999-10-12 WO PCT/EP1999/007663 patent/WO2000024545A1/en active Application Filing
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1318183C (en) * | 2001-05-03 | 2007-05-30 | 普莱克斯技术有限公司 | Shielding gas mixture for mig brazing |
EP1462207A1 (en) * | 2003-03-29 | 2004-09-29 | Grillo-Werke AG | Welding, soldering or brazing method under a protective atmosphere of metallic workpieces using a Zn/Al filler material |
WO2004087366A1 (en) * | 2003-03-29 | 2004-10-14 | Grillo-Werke Ag | Method for inert gas welding or inert gas soldering workpieces comprising identical or different metals or metal alloys by means of an additional zn/al metal |
US7329828B2 (en) | 2003-03-29 | 2008-02-12 | Grillo-Werke Ag | Method for inert gas welding or inert gas soldering of workpieces comprising identical or different metals or metal alloys by means of an additional Zn/Al metal |
EP1608482B1 (en) | 2003-03-29 | 2016-10-05 | Grillo-Werke AG | Welding, soldering or brazing method under a protective atmosphere of metallic workpieces using a zn/al filler material |
EP1757401A1 (en) * | 2005-08-26 | 2007-02-28 | Linde Aktiengesellschaft | Process for arc welding |
WO2007033916A1 (en) * | 2005-09-20 | 2007-03-29 | Messer Group Gmbh | Pollutant-reducing protective gas mixture for the mag welding of unalloyed or low-alloyed steels |
EP1987901A1 (en) * | 2007-05-04 | 2008-11-05 | Linde Aktiengesellschaft | Method of light arc joining under a protective gas comprising Argon, Helium and Oxygen and/or Carbon dioxide |
CN114453712A (en) * | 2021-12-06 | 2022-05-10 | 河钢股份有限公司 | Application of ternary mixed protective gas in gas metal arc welding |
Also Published As
Publication number | Publication date |
---|---|
WO2000024545A1 (en) | 2000-05-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1608482B2 (en) | Welding, soldering or brazing method under a protective atmosphere of metallic workpieces using a zn/al filler material | |
EP1101559B1 (en) | MIG/MAG soldering method with the use of protective active gas | |
EP1757401B1 (en) | Process for arc welding | |
CN108067761B (en) | Welding electrode wire with alkaline earth metal | |
US11426824B2 (en) | Aluminum-containing welding electrode | |
DE3328272A1 (en) | WELDING SYSTEM | |
EP1321218A2 (en) | Method for joining dissimilar materials in shielding gas | |
DE3632466A1 (en) | FILLER WIRE ELECTRODE AND METHOD FOR FLAME CUTTING METALS | |
EP0639423B1 (en) | Shielding gas arc welding method for non-ferrous metals, especially aluminium materials | |
DE19849510A1 (en) | Process for arc brazing under protective gas | |
EP3444063A2 (en) | Electrodes for forming austenitic and duplex steel weld metal | |
EP1339525B1 (en) | Use of a process gas for laser welding | |
EP1341640B1 (en) | Shielding gas and arc-welding method | |
JP2002035941A (en) | MIG WELDING METHOD OF ALUMINUM AND ITS ALLOY USING SHIELDING GAS OF Ar/He/O2 TYPE | |
EP1022086B1 (en) | Laser welding with process gas | |
EP2186593A1 (en) | Gas mixture | |
DE60016077T2 (en) | Method for pulsed MIG welding of Al alloys | |
DE69702629T2 (en) | Wire electrode with flux core for arc welding | |
EP1084788B1 (en) | Use of a process gas mixture in laser beam welding | |
EP1341641B1 (en) | Shielding gas and arc-welding method | |
DE102005018876A1 (en) | Welding high-strength steels | |
JP2002346787A (en) | Solid wire for pulse mag welding | |
WO2002076670A1 (en) | Utilization of a process gas mixture and method for laser beam welding | |
DE60131351T2 (en) | Welding soldering TIG process for galvanized steel sheets | |
DE102008024977A1 (en) | Method of arc joining |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8127 | New person/name/address of the applicant |
Owner name: AIR LIQUIDE DEUTSCHLAND GMBH, 47805 KREFELD, DE |
|
8141 | Disposal/no request for examination | ||
8110 | Request for examination paragraph 44 | ||
8170 | Reinstatement of the former position | ||
8131 | Rejection |