CN109530890A - Consumable electrode gas shield welding nickel-based welding wire ArN2CO2Protective gas - Google Patents
Consumable electrode gas shield welding nickel-based welding wire ArN2CO2Protective gas Download PDFInfo
- Publication number
- CN109530890A CN109530890A CN201811618599.XA CN201811618599A CN109530890A CN 109530890 A CN109530890 A CN 109530890A CN 201811618599 A CN201811618599 A CN 201811618599A CN 109530890 A CN109530890 A CN 109530890A
- Authority
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- China
- Prior art keywords
- welding
- gas
- nickel
- consumable electrode
- arn
- 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
- 238000003466 welding Methods 0.000 title claims abstract description 73
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 229910052759 nickel Inorganic materials 0.000 title claims abstract description 13
- 239000007789 gas Substances 0.000 abstract description 40
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 20
- 238000000034 method Methods 0.000 abstract description 11
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 10
- 230000001681 protective effect Effects 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 7
- 238000010276 construction Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000010891 electric arc Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 7
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 6
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 229910052786 argon Inorganic materials 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 230000001590 oxidative effect Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000004927 fusion Effects 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- QFXZANXYUCUTQH-UHFFFAOYSA-N ethynol Chemical group OC#C QFXZANXYUCUTQH-UHFFFAOYSA-N 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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
- 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
Abstract
Proposed by the present invention is consumable electrode gas shield welding nickel-based welding wire ArN2CO2Protective gas.Consumable electrode gas shield welding uses nickel-based welding wire and ArN2CO2Protective gas mixes dosage mass ratio are as follows: Ar:93~95%；N2: 2.5~3.5%；CO2: 2.5~3.5%.The ArN2CO2The mixing that protective gas dosage passes through different proportion; guarantee the content of nitrogen in weld seam; 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.The present invention in the Ni-based gas metal-arc welding of NiCrMo-3 due to using ArN2CO2Ternary gas is proportionally mixed as protective gas, ensure that the nitrogen element content in weld seam, 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 ArN2CO2Protective gas.The ArN2CO2Protective gas dosage is logical
The mixing of different proportion is crossed, guarantees the content of nitrogen in weld seam, and there is excellent arc stiffness, directive property is strong, nitrogen
Excellent welding without scaling loss improves the compactness extent of welded seam, solves nitrogen in welding process and loses weld seam mechanical property
The unstable technical problem of energy.
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 ArN2CO2Protective gas mixes dosage mass ratio are as follows: Ar:93~95%；
N2: 2.5~3.5%；CO2: 2.5~3.5%.
Good effect, since the present invention uses ArN in the Ni-based gas metal-arc welding of NiCrMo-32CO2Ternary gas
Proportionally mixing is used as protective gas, ensure that the nitrogen element content in middle thin board welding seam, realizes excellent arc stiffness,
Welding efficiency is improved, 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 (20 × 200 × l000mm+20 × 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,
20~24V of weldingvoltage, the protective gas dosage mass ratio used are as follows: Ar:95%； N2: 2.5%；CO2: 2.5%；
(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, 20~24V of weldingvoltage, the protective gas dosage mass ratio used are as follows: Ar:93%；N2: 3.5%；CO2: 3.5%.
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.
CO2Not only had the advantages that arc stability, splashing was small, is easy to get axial spray transfer, but also there is oxidisability；Overcome
Surface tension is big, liquid metals is sticky, the easy drift problem of cathode protection when argon gas welding, while having to weld seam mushroom-shaped fusion penetration
Improved；Oxidizing gas can increase the activation energy of molten drop, increase molten drop transition frequency, while the oxide in molten bath reduces
The work function of electronics, makes arc stability burn above molten bath, but oxidizing atmosphere is used to carry out the nickel such as Ni-Cr-Mo-3
Sill will cause groove face oxidation, will cause electric arc during thick plates in the groove face launching electronics for having oxide and
The starting the arc.
N2For diatomic molecule, and it is easy electrolysis, N2Addition electric arc compression can be made obvious, guarantee the stiffness of electric arc, together
When N atmosphere increase the partial pressure of electric arc, can the N element to scaling loss in welding process effectively compensated, guarantee weld seam gold
The intensity and toughness of category.
The protective gas, it is cheap, it is suitble to engine request and technique to require the welding of lower middle thin plate.
Claims (1)
1. consumable electrode gas shield welding nickel-based welding wire ArN2CO2Protective gas, it is characterized in that: consumable electrode gas shield welding uses nickel-based welding wire
With ArN2CO2Protective gas mixes dosage mass ratio are as follows: Ar:93~95%；N2: 2.5~3.5%；CO2: 2.5~3.5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811618599.XA CN109530890A (en) | 2018-12-28 | 2018-12-28 | Consumable electrode gas shield welding nickel-based welding wire ArN2CO2Protective gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811618599.XA CN109530890A (en) | 2018-12-28 | 2018-12-28 | Consumable electrode gas shield welding nickel-based welding wire ArN2CO2Protective gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109530890A true CN109530890A (en) | 2019-03-29 |
Family
ID=65857490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811618599.XA Pending CN109530890A (en) | 2018-12-28 | 2018-12-28 | Consumable electrode gas shield welding nickel-based welding wire ArN2CO2Protective gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109530890A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1274631A (en) * | 1999-05-24 | 2000-11-29 | 普拉塞尔技术有限公司 | Shielding gas mixture for gas-metal electric arc welding |
| CN1396037A (en) * | 2002-08-09 | 2003-02-12 | 中国科学院上海硅酸盐研究所 | High-temp soldering method for aluminium nitride and copper |
| CN103056524A (en) * | 2012-12-24 | 2013-04-24 | 长春轨道客车股份有限公司 | Laser overlapping half penetration welding method with non-oxidation non-penetration face |
| CN103071951A (en) * | 2012-12-21 | 2013-05-01 | 武汉市润之达石化设备有限公司 | Ultra-low-temperature stainless steel welding protection gas |
| CN106346171A (en) * | 2016-11-07 | 2017-01-25 | 苏州大学 | High-nitrogen steel pressure welding device and method for welding high-nitrogen steel by using same |
| CN109079357A (en) * | 2017-06-14 | 2018-12-25 | 通用电气公司 | The method for welding high temperature alloy |
-
2018
- 2018-12-28 CN CN201811618599.XA patent/CN109530890A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1274631A (en) * | 1999-05-24 | 2000-11-29 | 普拉塞尔技术有限公司 | Shielding gas mixture for gas-metal electric arc welding |
| CN1396037A (en) * | 2002-08-09 | 2003-02-12 | 中国科学院上海硅酸盐研究所 | High-temp soldering method for aluminium nitride and copper |
| CN103071951A (en) * | 2012-12-21 | 2013-05-01 | 武汉市润之达石化设备有限公司 | Ultra-low-temperature stainless steel welding protection gas |
| CN103056524A (en) * | 2012-12-24 | 2013-04-24 | 长春轨道客车股份有限公司 | Laser overlapping half penetration welding method with non-oxidation non-penetration face |
| CN106346171A (en) * | 2016-11-07 | 2017-01-25 | 苏州大学 | High-nitrogen steel pressure welding device and method for welding high-nitrogen steel by using same |
| CN109079357A (en) * | 2017-06-14 | 2018-12-25 | 通用电气公司 | The method for welding high temperature alloy |
Non-Patent Citations (1)
| Title |
|---|
| 高忠民等: "《焊工入门与提高 熔化极气体保护焊》", 28 February 2013, 金盾出版社 * |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190329 |