CN108015450A - One kind is used for reactor supporting structure steel gas shield welding wire - Google Patents
One kind is used for reactor supporting structure steel gas shield welding wire Download PDFInfo
- Publication number
- CN108015450A CN108015450A CN201711244660.4A CN201711244660A CN108015450A CN 108015450 A CN108015450 A CN 108015450A CN 201711244660 A CN201711244660 A CN 201711244660A CN 108015450 A CN108015450 A CN 108015450A
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- China
- Prior art keywords
- welding
- weld metal
- welding wire
- supporting structure
- gas shield
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- 238000003466 welding Methods 0.000 title claims abstract description 50
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 19
- 239000010959 steel Substances 0.000 title claims abstract description 19
- 239000002184 metal Substances 0.000 claims abstract description 22
- 229910052751 metal Inorganic materials 0.000 claims abstract description 18
- 238000012360 testing method Methods 0.000 claims abstract description 9
- 239000000203 mixture Substances 0.000 claims abstract description 6
- 239000000126 substance Substances 0.000 claims abstract description 6
- 239000012535 impurity Substances 0.000 claims abstract description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- 238000004080 punching Methods 0.000 claims 1
- 238000010438 heat treatment Methods 0.000 abstract description 5
- 229910045601 alloy Inorganic materials 0.000 abstract description 4
- 239000000956 alloy Substances 0.000 abstract description 4
- 229910000746 Structural steel Inorganic materials 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 238000005275 alloying Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 229910000859 α-Fe Inorganic materials 0.000 description 3
- 229910018643 Mn—Si Inorganic materials 0.000 description 2
- 230000003471 anti-radiation Effects 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000007704 transition Effects 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
- 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
- B23K35/3053—Fe as the principal constituent
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Arc Welding In General (AREA)
Abstract
One kind is used for reactor supporting structure steel gas shield welding wire, belongs to structural steel welding technology field.Its chemical composition is by mass percentage：C 0.01~0.08, Si+Mn 1.5~2.5, Ni 0.5~2.0, Mo 0.1~0.8, Cr≤0.10, Al 0.005~0.03, Ti 0.01~0.1, V≤0.02, P≤0.015, S≤0.01, Cu≤0.035, surplus are Fe and impurity.Advantage is, the welding wire weld metal is as-welded, excellent in low temperature toughness after heat treatment state and irradiation test.The as-welded 30 DEG C of impact absorbing energy KV of weld metal275‑202J；Weld metal 30 DEG C of impact absorbing energy KV after hidden lino removal267‑188J；After irradiation test, 30 DEG C of impact absorbing energy KV of weld metal260‑167J.This welding wire can be used for the welding of reactor supporting structure steel plate, and intensity rank is in the welding of the low-alloy high-strength steel of more than 460MPa.
Description
Technical field
The invention belongs to structural steel welding technology field, more particularly to one kind to be used for reactor supporting structure steel gas shield welding
Silk.
Background technology
With the continuous development of Nuclear Electricity, the requirement of more top load is proposed to reactor supporting structure material, it is existing
Highest supporting material intensity rank is that yield strength is 390MPa steel, it is in sheet metal thickness, strength of welded joint, toughness deposit
It cannot all meet high-mechanic requirement with mechanical behavior under high temperature aspect.Intensity rank must be made to reach yield strength 460MPa, tension
Intensity is more than 600MPa.The country has carried out the development of yield strength 460MPa steel plates at present, but still lacks matched welding
Material.Therefore, there is an urgent need to carry out grinding for the yield strength 460MPa supporting welding materials of reactor support steel plate as early as possible
System.
The content of the invention
It is an object of the invention to provide one kind to be used for reactor supporting structure steel gas shield welding wire, and weld metal is as-welded
Good low-temperature flexibility, and good mechanical performance after irradiation test are respectively provided with heat treatment state.
Reactor supporting structure stitches the more demanding of metallicity, its weld metal should meet that as-welded and postwelding eliminates and answer
Meet the requirement of all technical at the same time under power condition of heat treatment, and require good anti-radiation performance.Weld metal
Performance relies primarily on alloying to realize, but considers the requirement of irradiation behaviour, many commonly-used intensified element, toughening constituent content
It is strictly limited, therefore component of weld wire design must take into consideration all many harsh conditions.
The gas shield welding wire of the present invention, its chemical composition are by mass percentage：C 0.01~0.08, Si+Mn 1.5~
2.5, Ni 0.5~2.0, Mo 0.1~0.8, Cr≤0.10, Al 0.005~0.03, Ti 0.01~0.1, V≤0.02, P≤
0.015, S≤0.01, Cu≤0.035, surplus are Fe and inevitable impurity.
Gas shield welding welding, 12~20kJ/cm of thermal weld stress, protective gas Ar+5%CO are carried out with welding wire of the present invention2,
100~150 DEG C of layer temperature.Postwelding carries out 580 ± 10 DEG C × 29h stress relievings.45~55 DEG C of fast neutron fluence irradiation test temperature；
Weld metal good mechanical performance.Weld metal it is as-welded and after hidden lino removal excellent in low temperature toughness, and irradiate examination
Test rear good mechanical performance.
The welding wire for submerged-arc welding of the present invention, it is special suitable for the submerged arc welding that intensity rank is more than 460MPa low-alloy high-strength steels
Not Shi Yongyu 460MPa order reaction heap supporting structure steel welding.
Effect of the present invention containing four elements is as follows：
In order to ensure the intensity of welding wire, it is necessary to add a certain amount of carbon, but carbon content is higher will be to toughness and corrosion-resistant
Performance has a negative impact, therefore this welding wire carbon content scope selection 0.01~0.08%.
The low-temperature impact toughness of weld seam is improved using Ni, reduces ductile-brittle transition temperature.Ni is radiation embrittlement sensing elements,
When Ni contents are more than 1.2%, radiation sensitivity will substantially increase, therefore Ni contents should be use up on the premise of low-temperature flexibility is ensured
It may lack, Ni contents of the present invention are 0.5~1.2%.
The high temperature tensile strength of Mo weld seam stabilizings is added, mitigates loss of the destressing heat treatment to intensity and toughness.This hair
Bright Mo contents 0.1~0.8%.
The constituent content to radiation embrittlement sensitivity such as P, S, Cu is reduced as far as possible.The selection point of invention P, S, Cu content
Not Wei no more than 0.015%, no more than 0.01% and no more than 0.035%.
Using Mn-Si complex deoxidizations, Mn-Si can meet to weld porosity resistance ability in suitable scope, and obtain
The best match of weld seam obdurability.Mn+Si total amounts of the present invention are 1.5~2.5%.
Al is Strong oxdiative thing formation element, has the function that very strong deoxidation and crystal grain thinning, therefore in welding process
Al can reduce the scaling loss of other alloying elements.Related research shows that suitable aluminium content is added in weld seam can make acicular ferrite
Content increase, so as to improve welding seam toughness.Al content selection 0.005~0.03% of the present invention.
Ti is the element of effective deoxidation, while Ti can promote the formation of acicular ferrite, and then improves weld metal
Toughness.But Ti too high levels can reduce the low-temperature flexibility of weld seam.Therefore, Ti contents of the present invention are 0.01~0.1.
By the reasonably combined of alloying element, weld seam is obtained tiny acicular ferrite structure, meet the synthesis to weld seam
Performance requirement.This welding wire weld metal is as-welded, excellent in low temperature toughness after heat treatment state and irradiation test.Weld metal as-welded -30
DEG C impact absorbing energy KV275-202J；Weld metal -30 DEG C of impact absorbing energy KV after hidden lino removal267-188J；Spoke
After experiment, -30 DEG C of impact absorbing energy KV of weld metal260-167J.This welding wire can be used for reactor supporting structure steel plate
Welding, and intensity rank is in the welding of the low-alloy high-strength steel of more than 460MPa.
The beneficial effects of the present invention are：
1) welding wire of the present invention is applicable in the welding of 460MPa order reaction heap supporting structure steel plates, weld metal as-welded and
The excellent in low temperature toughness after hidden lino removal, and there is good anti-radiation performance.Welding wire of the present invention is equally applicable to by force
The low-alloy high-strength steel gas shield welding for spending rank in more than 460MPa is welded.
2) welding wire of the present invention has excellent welding technological properties.
Embodiment：
With reference to embodiment.The embodiment of the present invention is described in further detail.
The reactor support welding wire for submerged-arc welding of the present invention, its chemical composition are by mass percentage：C 0.01~
0.08, Si+Mn 1.5~2.5, Ni 0.5~2.0, Mo 0.1~0.8, Cr≤0.10, Al 0.005~0.03, Ti 0.01~
0.1, V≤0.02, P≤0.015, S≤0.01, Cu≤0.035, surplus are Fe and impurity.
Smelting is controlled according to the chemical composition of the welding wire of table 1, wire rod is rolled into the steel ingot smelted, then carry out heat
Processing, drawing, the final welding wire (embodiment 1, embodiment 2, embodiment 3, embodiment 4, embodiment 5) for obtaining Ф 1.2mm.
1 submerged-arc welding wire chemical composition (mass percent) surplus Fe of table
Gas shield welding has been carried out using above-mentioned 5 kinds of welding wires (embodiment 1, embodiment 2, embodiment 3, embodiment 4, embodiment 5)
Welding, 12~20kJ/cm of thermal weld stress, protective gas Ar+5%CO2, 100~150 DEG C of layer temperature.Postwelding carries out 580 ± 10
DEG C × 29h stress relievings.45~55 DEG C of fast neutron fluence irradiation test temperature
Weld metal mechanical property the results are shown in Table 2.
Table 2 uses the weld metal mechanical property of 1~5 gas shield welding wire of the embodiment of the present invention
Claims (2)
1. one kind is used for reactor supporting structure steel gas shield welding wire, it is characterised in that chemical composition is C by mass percentage
0.01~0.08, Si+Mn 1.5~2.5, Ni 0.5~2.0, Mo 0.1~0.8, Cr≤0.10, Al 0.005~0.03, Ti
0.01~0.1, V≤0.02, P≤0.015, S≤0.01, Cu≤0.035, surplus are Fe and inevitable impurity；
Suitable for the welding that yield strength is 460MPa order reaction heap supporting structure steel plates；As-welded -30 DEG C of punchings of weld metal
Hit and absorb work(KV275-202J；Weld metal -30 DEG C of impact absorbing energy KV after hidden lino removal267-188J；Irradiation examination
After testing, -30 DEG C of impact absorbing energy KV of weld metal260-167J。
2. welding wire according to claim 1, it is characterised in that：Welding wire progress gas shield welding welding, thermal weld stress 12~
20kJ/cm, protective gas Ar+5%CO2, 100~150 DEG C of layer temperature；Postwelding carries out 580 ± 10 DEG C × 29h stress relievings, soon
45~55 DEG C of neutron fluence irradiation test temperature；Weld metal good mechanical performance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711244660.4A CN108015450A (en) | 2017-11-30 | 2017-11-30 | One kind is used for reactor supporting structure steel gas shield welding wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711244660.4A CN108015450A (en) | 2017-11-30 | 2017-11-30 | One kind is used for reactor supporting structure steel gas shield welding wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108015450A true CN108015450A (en) | 2018-05-11 |
Family
ID=62077863
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711244660.4A Pending CN108015450A (en) | 2017-11-30 | 2017-11-30 | One kind is used for reactor supporting structure steel gas shield welding wire |
Country Status (1)
| Country | Link |
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| CN (1) | CN108015450A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109664047A (en) * | 2018-09-17 | 2019-04-23 | 昆山中冶宝钢焊接材料有限公司 | A kind of welding wire for the protection weldering of not preheating gas |
| CN111421262A (en) * | 2020-03-27 | 2020-07-17 | 上海大西洋焊接材料有限责任公司 | Low-alloy steel argon arc welding wire for primary loop main equipment of nuclear power station |
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|---|---|---|---|---|
| CN1721125A (en) * | 2004-07-12 | 2006-01-18 | 株式会社神户制钢所 | Solid wire for gas shield arc welding |
| CN101288925A (en) * | 2007-04-20 | 2008-10-22 | 宝山钢铁股份有限公司 | High intensity gas shielded welding wire, wire rod and application thereof |
| CN101992365A (en) * | 2010-12-20 | 2011-03-30 | 成都新大洋焊接材料有限责任公司 | High-strength and high-tenacity gas shielded welding wire |
| CN103659047A (en) * | 2013-11-29 | 2014-03-26 | 四川大西洋焊接材料股份有限公司 | Gas shielded welding wire for nuclear power heavy support frame |
| CN104722954A (en) * | 2015-03-24 | 2015-06-24 | 天津重型装备工程研究有限公司 | Automatic submerged arc welding wire used in nuclear grade strong radiation area |
| CN104923967A (en) * | 2015-06-25 | 2015-09-23 | 江苏省沙钢钢铁研究院有限公司 | High-strength high-toughness gas-shielded welding wire capable of avoiding preheating and weld metal |
| CN105458549A (en) * | 2015-12-18 | 2016-04-06 | 钢铁研究总院 | Submerged arc welding wire for reactor supporting structure steel |
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2017
- 2017-11-30 CN CN201711244660.4A patent/CN108015450A/en active Pending
Patent Citations (7)
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| CN1721125A (en) * | 2004-07-12 | 2006-01-18 | 株式会社神户制钢所 | Solid wire for gas shield arc welding |
| CN101288925A (en) * | 2007-04-20 | 2008-10-22 | 宝山钢铁股份有限公司 | High intensity gas shielded welding wire, wire rod and application thereof |
| CN101992365A (en) * | 2010-12-20 | 2011-03-30 | 成都新大洋焊接材料有限责任公司 | High-strength and high-tenacity gas shielded welding wire |
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| CN104722954A (en) * | 2015-03-24 | 2015-06-24 | 天津重型装备工程研究有限公司 | Automatic submerged arc welding wire used in nuclear grade strong radiation area |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109664047A (en) * | 2018-09-17 | 2019-04-23 | 昆山中冶宝钢焊接材料有限公司 | A kind of welding wire for the protection weldering of not preheating gas |
| CN111421262A (en) * | 2020-03-27 | 2020-07-17 | 上海大西洋焊接材料有限责任公司 | Low-alloy steel argon arc welding wire for primary loop main equipment of nuclear power station |
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| PB01 | Publication | ||
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Application publication date: 20180511 |