CN109530892A - Consumable electrode gas shield welding nickel-based welding wire ArHeN2H2Protective gas - Google Patents
Consumable electrode gas shield welding nickel-based welding wire ArHeN2H2Protective gas Download PDFInfo
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- CN109530892A CN109530892A CN201811618602.8A CN201811618602A CN109530892A CN 109530892 A CN109530892 A CN 109530892A CN 201811618602 A CN201811618602 A CN 201811618602A CN 109530892 A CN109530892 A CN 109530892A
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- welding
- gas
- nickel
- consumable electrode
- arhen
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Classifications
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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
- B23K9/32—Accessories
- B23K9/325—Devices for supplying or evacuating shielding gas
-
- 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
- B23K9/173—Arc welding or cutting making use of shielding gas and of a consumable electrode
-
- 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
- B23K9/235—Preliminary treatment
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- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
Abstract
Proposed by the present invention is consumable electrode gas shield welding nickel-based welding wire ArHeN2H2Protective gas.Consumable electrode gas shield welding uses nickel-based welding wire and ArHeN2H2Protective gas mixes dosage mass ratio are as follows: Ar:45~50%；He:45~50%；N2: 2.5~3.5%；H2: 1.0~1.5%.The ArHeN2H2The mixing that quaternary protective gas dosage passes through different proportion; guarantee the content of nitrogen in big thickness plate welding seams; and there is excellent arc stiffness; directive property is strong; excellent welding of the nitrogen without scaling loss; the compactness extent of welded seam is improved, nitrogen in welding process is solved and loses the unstable technical problem of weld properties.Since the present invention uses ArHeN in the Ni-based gas metal-arc welding of NiCrMo-32H2Quaternary gas is proportionally mixed as protective gas, realizes excellent arc stiffness, improves welding efficiency, is shortened construction period, is reduced production cost；The compactness extent for improving welded seam, reduces welding difficulty.It is suitable for as consumable electrode gas shield welding nickel-based welding wire protective gas application.
Description
Technical field
The present invention relates to a kind of consumable electrode gas shield welding nickel-based welding wires, more particularly to a kind of consumable electrode gas shield welding nickel-based welding wire
Protective gas.
Background technique
Currently, NiCrMo-3 Nickel-welding Material is mainly used in nuclear industry and low-temperature steel Material Field, it is irreplaceable
Welding material.Welding method is mainly argon arc welding, submerged-arc welding and manual electric arc welding at present, and welding efficiency is low, quality is unstable
Fixed, repair rate height, has seriously affected the build guality of nuclear industry structure and low temperature structure.Similar products are reduced in the competing of the world
Strive power.
The Ni-based gas metal-arc welding welding wire of NiCrMo-3, although its welding efficiency is high, using conventional protection
Gas, wandering in welding process, electric arc directive property is not strong, and drift is serious, generates the welding defects such as incomplete fusion, lack of penetration；
And the nitrogen in welding process is lost seriously, and weld metal unstable mechanical property problem causes unstable quality, weld seam
The problems such as mechanical properties decrease.Seriously constrain the popularization and use of NiCrMo3 welding material.
Summary of the invention
In order to overcome nitrogen loss in the Ni-based gas metal-arc welding of NiCrMo-3, improve the steady of weld properties
Qualitative, the invention proposes consumable electrode gas shield welding nickel-based welding wire ArHeN2H2Protective gas.The ArHeN2H2Protective gas dosage
By the mixing of different proportion, guarantee the content of nitrogen in weld seam, and there is excellent arc stiffness, directive property is strong, nitrogen member
Excellent welding of the element without scaling loss improves the compactness extent of welded seam, solves nitrogen in welding process and loses weld seam mechanics
The unstable technical problem of performance.
The solution adopted by the present invention to solve the technical problem is that:
Consumable electrode gas shield welding uses nickel-based welding wire and ArHeN2H2Protective gas mixes dosage mass ratio are as follows: Ar:45~50%；
He:45~50%； N2: 2.5~3.5%；H2: 1.0~1.5%.
Good effect, since the present invention uses ArHeN in the Ni-based gas metal-arc welding of NiCrMo-32H2Four vigour
Body is proportionally mixed as protective gas, be ensure that the nitrogen element content in big thickness plate welding seams, is realized excellent electric arc
Stiffness improves welding efficiency, shortens construction period, reduces production cost；The compactness extent for improving welded seam, reduces
Welding difficulty.It is suitable for as consumable electrode gas shield welding nickel-based welding wire protective gas application.
Specific embodiment
In the specific of vertical position of welding welding 9Ni steel docking breadboard (40 × 200 × l000mm+40 × 200 × l000mm)
Embodiment, implementation step are as follows:
One, welding preparation works:
Retaining wall on slope is carried out using oxyacetylene torch, bevel angle is 30 °.Within the scope of cleaning for bonding groove and its two sides 30mm
Oxide skin, greasy dirt, rust, moisture content and other dirts.Inside groove and grinding wheel polishing in two sides is until there is metallic luster.Weldering
It connects workpiece to carry out by design welding groove element requirement, Butt welded seam gap is 1mm.
Two, it welds:
Welding procedure implementation process is as follows:
(1) face of weld welding before carrying out first, NiCrMo-3 welding wire of the welding material for ￠ 1.2mm, 90~120A of welding current,
24~28V of weldingvoltage, the protective gas dosage mass ratio used are as follows: Ar:45%；He:45%； N2: 2.5%；H2: 1.0%；
(2) before the face of weld welding after the completion of, the rear face of weld carry out carbon arc air gouging back chipping, using mechanical means to rear face of weld groove into
Row cleaning, the face of weld welds after carrying out after cleaning out；
(3) face of weld welding is identical as the first face of weld afterwards, welding material for ￠ 1.2mm NiCrMo-3 welding wire, welding current 90~
120A, 24~28V of weldingvoltage, the protective gas dosage mass ratio used are as follows: Ar:50%；He:50%； N2: 3.5%；H2:
1.5%。
Working principle:
MAG weldering is a kind of mixed gas arc welding that a small amount of oxidizing gas is added in argon gas and mixes.NiCrMo-3
Equal nickel-base materials Ni content is high, causes gas metal-arc welding welding process molten drop viscosity big, and transition is difficult, and excessive is molten
Drop, or arc burning position is caused to be not fixed, electric arc directive property is bad, and gas metal-arc welding arc temperature is high, molten drop
It is relatively small, it will cause that N element scaling loss in Ni base welding wire is serious, and the loss of N element will cause under weld metal intensity and toughness
Drop.
Ar can effectively completely cut off surrounding air itself and not dissolve in metal again, and metal reaction of getting along well guarantees that arc stability prolongs
It burns, common gas in gas metal-arc welding.
He gas can be improved the temperature of electric arc, make the fusing point that is rapidly reached of molten drop, increase molten drop transition frequency, but He gas
The raising of ratio, arc pressure increases, and inhibits molten drop too low.With the variation of gas mixing ratio, arc shape becomes He
Change.With the increase of helium ratio in mixed gas, electric arc is gradually tapered up, especially when for pure helium, arc shape compared with
There is apparent change when pure argon, arc constriction is serious, and arc column is thin and concentrates.Electric arc color be gradually converted by Bai Liang it is orange,
This is mainly due to the spectral lines of pure helium to be located within the scope of orange wavelength, and with the increase of helium ratio, helium atom is electric in electric arc
From, compound increasing number, the relative intensity of spectral line also constantly increases, and macroscopically electric arc color is gradually by white bright Xiang Cheng
Color change.
H2For diatomic molecule, and it is easy electrolysis, H2Addition electric arc compression can be made obvious, guarantee the stiffness of electric arc, together
When can make electric arc above molten drop at bell jar form, squeezed state is formed to molten drop, promotes the droplet transfer.
Therefore, which connects as big multi-Layer Welding of Thick Plates uses protective gas.
Claims (1)
1. consumable electrode gas shield welding nickel-based welding wire ArHeN2H2Protective gas, it is characterized in that: consumable electrode gas shield welding uses nickel-based welding wire
With ArHeN2H2Protective gas mixes dosage mass ratio are as follows: Ar:45~50%；He:45~50%； N2: 2.5~3.5%；H2:
1.0~1.5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811618602.8A CN109530892A (en) | 2018-12-28 | 2018-12-28 | Consumable electrode gas shield welding nickel-based welding wire ArHeN2H2Protective gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811618602.8A CN109530892A (en) | 2018-12-28 | 2018-12-28 | Consumable electrode gas shield welding nickel-based welding wire ArHeN2H2Protective gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109530892A true CN109530892A (en) | 2019-03-29 |
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ID=65857507
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811618602.8A Pending CN109530892A (en) | 2018-12-28 | 2018-12-28 | Consumable electrode gas shield welding nickel-based welding wire ArHeN2H2Protective gas |
Country Status (1)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113547189A (en) * | 2021-07-15 | 2021-10-26 | 天津理工大学 | Quaternary shielding gas for pulse GMAW welding of nickel-based alloy and welding process thereof |
Citations (7)
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|---|---|---|---|---|
| US5210388A (en) * | 1991-03-05 | 1993-05-11 | Messer Griesheim Gmbh | Inert gas for tig, mig, mag and plasma welding |
| 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 |
| CN104057170A (en) * | 2013-03-20 | 2014-09-24 | 深圳联合焊接材料有限公司 | Carbon structure surface metallization method |
| CN104607777A (en) * | 2015-01-21 | 2015-05-13 | 中国船舶重工集团公司第七二五研究所 | Welding shielding gas alternating gas supply system |
| CN105829013A (en) * | 2013-11-27 | 2016-08-03 | 林德股份公司 | Additive manufacturing of titanium article |
| CN106112204A (en) * | 2016-07-15 | 2016-11-16 | 南京国际船舶设备配件有限公司 | A kind of marine low-speed machine air valve sealing surface build-up welding Nickel-based Alloy Welding technique |
| CN107160029A (en) * | 2017-07-12 | 2017-09-15 | 山东大学 | A kind of additional heating source auxiliary friction stir welding method and device |
-
2018
- 2018-12-28 CN CN201811618602.8A patent/CN109530892A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5210388A (en) * | 1991-03-05 | 1993-05-11 | Messer Griesheim Gmbh | Inert gas for tig, mig, mag and plasma welding |
| 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 |
| CN104057170A (en) * | 2013-03-20 | 2014-09-24 | 深圳联合焊接材料有限公司 | Carbon structure surface metallization method |
| CN105829013A (en) * | 2013-11-27 | 2016-08-03 | 林德股份公司 | Additive manufacturing of titanium article |
| CN104607777A (en) * | 2015-01-21 | 2015-05-13 | 中国船舶重工集团公司第七二五研究所 | Welding shielding gas alternating gas supply system |
| CN106112204A (en) * | 2016-07-15 | 2016-11-16 | 南京国际船舶设备配件有限公司 | A kind of marine low-speed machine air valve sealing surface build-up welding Nickel-based Alloy Welding technique |
| CN107160029A (en) * | 2017-07-12 | 2017-09-15 | 山东大学 | A kind of additional heating source auxiliary friction stir welding method and device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113547189A (en) * | 2021-07-15 | 2021-10-26 | 天津理工大学 | Quaternary shielding gas for pulse GMAW welding of nickel-based alloy and welding process thereof |
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Application publication date: 20190329 |
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