JPS55156677A - Consumable electrode system gas shielded arc welding method - Google Patents
Consumable electrode system gas shielded arc welding methodInfo
- Publication number
- JPS55156677A JPS55156677A JP6436479A JP6436479A JPS55156677A JP S55156677 A JPS55156677 A JP S55156677A JP 6436479 A JP6436479 A JP 6436479A JP 6436479 A JP6436479 A JP 6436479A JP S55156677 A JPS55156677 A JP S55156677A
- Authority
- JP
- Japan
- Prior art keywords
- welding
- strip
- copper
- layer
- arc welding
- 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
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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
Abstract
PURPOSE:To make possible the prevention of damaging of backing strips and the defect-free multi-layer welding of I-beam steel by specifying the mixing ratio of Ar and CO2 being shielding gas at the first and second and subsequent layer welding while automatically feeding a wire to the base metal groove applied with the backin strip made basically of copper. CONSTITUTION:A welding wire 2 from a welding torch 1 is positioned at the center of the groove spacing of the base metals 3 contacted with a backing strip 5 of copper or the alloy composed primarily of copper. In the first layer, the mixed gas of 65- 100% Ar and 0-35% CO2 is used as shielding gas and in the second and third layers, it is changed to the mixed gas of 0-50% Ar and 50-100% CO2, whereby the multi-layer welding of I-beam steel is done. As a result of this, arc 10 generates directly in the strip 5 in part but its potential gradient is small, resulting in smaller energy density. If the current value and welding speed are proper, the strip 5 does not melt. In the second and subsequent layers, CO2 which is inexpensive and gives deep penetration is much used.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6436479A JPS55156677A (en) | 1979-05-24 | 1979-05-24 | Consumable electrode system gas shielded arc welding method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6436479A JPS55156677A (en) | 1979-05-24 | 1979-05-24 | Consumable electrode system gas shielded arc welding method |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55156677A true JPS55156677A (en) | 1980-12-05 |
Family
ID=13256128
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6436479A Pending JPS55156677A (en) | 1979-05-24 | 1979-05-24 | Consumable electrode system gas shielded arc welding method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55156677A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH079144A (en) * | 1993-06-25 | 1995-01-13 | Iwatani Gas Kk | Shielding gas for gas shielded consumable electrode type arc welding |
KR960037192A (en) * | 1995-04-27 | 1996-11-19 | 유상부 | How to weld high thermal conductivity precipitation hardening CuCrZr copper alloy multi-pass mig |
-
1979
- 1979-05-24 JP JP6436479A patent/JPS55156677A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH079144A (en) * | 1993-06-25 | 1995-01-13 | Iwatani Gas Kk | Shielding gas for gas shielded consumable electrode type arc welding |
KR960037192A (en) * | 1995-04-27 | 1996-11-19 | 유상부 | How to weld high thermal conductivity precipitation hardening CuCrZr copper alloy multi-pass mig |
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