CN105081604B - 700MPa high-toughness high-strength automatic submerged-arc welding wires and application method - Google Patents
700MPa high-toughness high-strength automatic submerged-arc welding wires and application method Download PDFInfo
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- CN105081604B CN105081604B CN201510271888.7A CN201510271888A CN105081604B CN 105081604 B CN105081604 B CN 105081604B CN 201510271888 A CN201510271888 A CN 201510271888A CN 105081604 B CN105081604 B CN 105081604B
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- welding wire
- arc welding
- automatic submerged
- toughness
- application method
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- 238000003466 welding Methods 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims description 9
- 239000012535 impurity Substances 0.000 claims abstract description 15
- 239000000203 mixture Substances 0.000 claims abstract description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims 1
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 claims 1
- 229910001634 calcium fluoride Inorganic materials 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 229910052681 coesite Inorganic materials 0.000 claims 1
- 229910052593 corundum Inorganic materials 0.000 claims 1
- 229910052906 cristobalite Inorganic materials 0.000 claims 1
- 239000000377 silicon dioxide Substances 0.000 claims 1
- 229910052682 stishovite Inorganic materials 0.000 claims 1
- 229910052905 tridymite Inorganic materials 0.000 claims 1
- 229910001845 yogo sapphire Inorganic materials 0.000 claims 1
- 239000000126 substance Substances 0.000 abstract description 2
- 239000010936 titanium Substances 0.000 description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 12
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 239000013078 crystal Substances 0.000 description 5
- 230000004907 flux Effects 0.000 description 5
- 229910000859 α-Fe Inorganic materials 0.000 description 5
- 238000005275 alloying Methods 0.000 description 4
- 229910052804 chromium Inorganic materials 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 229910052750 molybdenum Inorganic materials 0.000 description 4
- 229910052759 nickel Inorganic materials 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910001566 austenite Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000011534 incubation Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 229910052720 vanadium Inorganic materials 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- SYBZOYITQDAGGS-UHFFFAOYSA-N [Mo].[Ti].[Ni].[Cr] Chemical compound [Mo].[Ti].[Ni].[Cr] SYBZOYITQDAGGS-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 230000009466 transformation 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
-
- 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
- B23K9/18—Submerged-arc welding
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Nonmetallic Welding Materials (AREA)
- Arc Welding In General (AREA)
Abstract
The invention provides a kind of high-toughness high-strength automatic submerged-arc welding wire, it is suitable for welding the 700MPa level high-strength plates of high tenacity, the chemical composition of the automatic submerged-arc welding wire（Mass percent, %）For：C 0.07 ~ 0.14, Si≤0.35, Mn 1.70 ~ 2.00, Ni≤0.30, Cr≤0.30, Mo 0.60 ~ 0.90, Ti≤0.20, V≤0.20, B≤0.10, S≤0.020, P≤0.020, surplus are Fe and inevitable impurity.The welding wire has high intensity and low-temperature flexibility.
Description
Technical field
It is suitable for welding 700MPa levels high-strength plate automatic submerged-arc welding wire and application method the present invention relates to one kind, specifically one
Kind high-toughness high-strength automatic submerged-arc welding wire and application method.
Background technology
With the rapid development of the industries such as national steel building, bridge, hoisting machinery, to 700MPa and ductility steel plate
Welding propose higher requirement.
For current domestic welding wire for submerged-arc welding mainly based on below 500MPa carbon steel welding wire, more than 600MPa welding wires are less, more
Based on import, price is also sufficiently expensive, especially 700MPa grade high ductilities automatic submerged-arc welding wire, as 700MPa level steel plates are big
Area splice joint is more and more, it would be highly desirable to needs further research and development.
The content of the invention
It is an object of the invention to provide a kind of high-toughness high-strength automatic submerged-arc welding wire and application method, welding wire uses
The design of chromium-nickel-molybdenum-titanium set member, make welding wire that there is higher intensity and toughness and micro- by adding by Rational Composition proportioning
Ti, V of amount, B element, the formation of weld seam acicular ferrite is promoted, the toughness of weld metal has been further increased, further through tight
The impurity elements such as lattice control S, P, O, N, make weld seam have good cracking resistance.
To reach above-mentioned purpose, the present invention uses following technical scheme：
A kind of 700MPa high-toughness high-strengths automatic submerged-arc welding wire, the component and mass fraction are as follows：C 0.07 ~
0.14, Si≤0.35, Mn 1.70 ~ 2.00, Ni≤0.30, Cr≤0.30, Mo 0.60 ~ 0.90, Ti≤0.20, V
≤ 0.20, B≤0.10, S≤0.020, P≤0.020, surplus are Fe and inevitable impurity.
Preferably, welding wire composition and mass percent are as follows：C 0.13 ~ 0.14, Si ≤0.30, Mn 1.80 ~
2.00, Ni≤0.30, Cr≤0.30, Mo 0.70 ~ 0.90, Ti≤0.20, V≤0.20, B≤0.10, S≤0.020, P
≤ 0.020, surplus is Fe and inevitable impurity.
Preferably, welding wire composition and mass percent are as follows：C 0.14, Si ≤0.30, Mn 1.90 ~ 2.00, Ni
≤ 0.30, Cr≤0.30, Mo 0.80 ~ 0.90, Ti≤0.20, V≤0.20, B≤0.10, S≤0.020, P≤0.020,
Surplus is Fe and inevitable impurity.
Preferably, C 0.11 ~ 0.12, Si≤0.30, Mn 1.75 ~ 1.85, Ni≤0.30, Cr≤0.30,
Mo 0.70 ~ 0.80, Ti≤0.20, V≤0.20, B≤0.10, S≤0.020, P≤0.020, surplus are Fe and can not kept away
The impurity exempted from.
Preferably, C:0.09, Si :0.18, Mn :1.80, Ni :0.08, Cr:0.06, Mo:0.75, Ti :
0.10, V:0.04, B:0.005, S:0.006, P :0.007, surplus is Fe and inevitable impurity.
Preferably, C:0.08, Si :0.17, Mn :1.89, Ni :0.06, Cr:0.06, Mo:0.74, Ti :
0.08, V:0.03, B:0.004, S:0.007, P :0.008, surplus is Fe and inevitable impurity.
Preferably, C:0.07, Si :0.16, Mn :1.76, Ni :0.04, Cr:0.06, Mo:0.80, Ti :
0.06, V:0.02, B:0.003, S:0.010, P :0.006, surplus is Fe and inevitable impurity.
Preferably, C:0.14, Si :0.18, Mn :1.75, Ni :0.06, Cr:0.07, Mo:0.78, Ti :
0.11, V:0.03, B:0.005, S:0.010, P :0.007, surplus is Fe and inevitable impurity.
A kind of application method of high-toughness high-strength automatic submerged-arc welding wire, is welded using SLD-SJ70M special fluxes
Connect.
10th, a kind of SLD-SJ70M special fluxes, it is characterised in that the composition of solder flux is as follows：
（%）
Beneficial effect of the present invention is shown：
The present invention welding wire in emphasis to alloying element Ni, Cr, Cu, Mo, Ti, V, B carry out science matching, by high Mn,
The solution strengthening of the alloying element such as micro- Ti processing and Ni, Cr, Mo, crystal grain refinement so that weld seam has high intensity and high-ductility
Property；
Appropriate Mn, Si element is added, there can be good deoxidation, it is favourable to improving toughness, while Mn also has de- S
Effect；
Ni elements are added, is solid-solution in ferrite, the low-temperature flexibility of weld seam can be significantly improved；Adding a small amount of Mo can change
The temper brittleness of kind weld metal；
Seam organization can further be refined by adding micro Ti elements, improve the low-temperature flexibility of weld metal, Ti and O shapes
Into TiO, promote the formation of weld seam acicular ferrite structure, reduce the nomadic nitrogen in weld seam, improve the toughness of weld seam.
Micro B is added, ferrite forming core can be suppressed on crystal boundary and then extend the incubation period of austenite transformation, so as to carry
High-hardenability.
It is worth proposing and it is noted that the component of wlding develops by now comparative maturity, still, the composition of wlding
And after component amount changes, its difference on effect is very big, and this variation is not necessarily towards the good direction of effect and become
It is dynamic, it is unknown, therefore not it can be anticipated that and can be obtained by limited trials.
Meanwhile by the technical program, it is improved significantly in the technical performance of welding wire, this can be from following spy
Can significantly it find out in point and embodiment, these effects have also confirmed the creativeness of this innovation and creation.
Welding wire of the present invention compared with prior art, has following features：
1st, the performance of welding wire meets：Deposited metal tensile strength >=700MPa, yield strength reach >=600MPa, elongation percentage
>=19, and weld seam has good impact flexibility, ballistic work, in more than 50J, can be used as 700MPa high-strength plates special at -40 DEG C
With automatic submerged-arc welding wire.
2nd, chemical composition reasonable mixture ratio, by emphasis to alloying element Ni, Cr, Cu, Mo, Ti, VB, carry out science matching,
Pass through the solution strengthening of the alloying element such as high Mn, micro- Ti processing and Ni, Cr, Mo, crystal grain refinement so that weld seam has high-strength
Degree and high tenacity.
3rd, welding wire of the present invention forms oxide equiax crystal with O, promotes weld seam needle-like iron by adding micro Ti elements
The formation of ferritic, further increase the toughness of weld metal.
4th, welding wire of the present invention can suppress ferrite forming core on crystal boundary and then extend austenite turn by adding micro B
The incubation period of change, so as to improve quenching degree.
5th, welding wire of the present invention makes weld seam have good cracking resistance by strictly controlling the impurity elements such as S, P, O, N.
6th, welded using SLD-SJ70M special fluxes, appearance of weld is attractive in appearance, has the good removability of slag, and surface
Quality and copper plate adhesive force meet or exceed the national standard of common welding wire for submerged-arc welding.
7th, SLD-SJ70M composition is as follows：
Embodiment
In order that those skilled in the art more fully understand the technical scheme in the application, it is real below in conjunction with the application
Example is applied, the technical scheme in the embodiment of the present application is clearly and completely described, it is clear that described embodiment is only
Some embodiments of the present application, rather than whole embodiments.Based on the embodiment in the application, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, it should all belong to the scope of the application protection.
A kind of its component of SLD-70M high-toughness high-strengths automatic submerged-arc welding wire and mass percent are as follows：
Illustrate with reference to specific embodiment, surplus is iron and inevitable impurity.
The welding wire of the above embodiments is welded in the protection of SLD-SJ70M special fluxes, and tested, data are such as
Shown in table 2.
The mechanical performance of each embodiment welding wire deposited metal of table 2
Described above is only the preferred embodiment of the application, is made skilled artisans appreciate that or realizing this Shen
Please.A variety of modifications to these embodiments will be apparent to one skilled in the art, as defined herein
General Principle can be realized in other embodiments in the case where not departing from spirit herein or scope.Therefore, the application
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (3)
- A kind of 1. application method of high-toughness high-strength automatic submerged-arc welding wire, it is characterised in that：Welding wire composition and mass percent It is as follows：C 0.13 ~ 0.14, Si≤0.30, Mn 1.80 ~ 2.00, Ni≤0.30, Cr≤0.30, Mo0.70 ~ 0.90, Ti≤0.20, V≤0.20, B≤0.10, S≤0.020, P≤0.020, surplus are Fe and can not The impurity avoided;And welded using following special welding agentSiO2+TiO2：25-35%；Al2O3+MnO：55-60%；CaF2：8-20%； S≦ 0.02%； P≦ 0.02%.
- 2. the application method of high-toughness high-strength automatic submerged-arc welding wire according to claim 1, it is characterised in that：Welding wire Component and mass percent are as follows：C 0.14, Si≤0.30, Mn 1.90 ~ 2.00, Ni≤0.30, Cr≤ 0.30, Mo 0.80 ~ 0.90, Ti≤0.20, V≤0.20, B≤0.10, S≤0.020, P≤0.020, surplus For Fe and inevitable impurity.
- 3. according to the application method of the high-toughness high-strength automatic submerged-arc welding wire of claim 1 or 2, it is characterised in that：C: 0.14, Si :0.18,Mn :1.75, Ni :0.06, Cr:0.07, Mo:0.78, Ti :0.11, V:0.03, B:0.005, S :0.010, P:0.007, surplus is Fe and inevitable impurity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510271888.7A CN105081604B (en) | 2015-05-26 | 2015-05-26 | 700MPa high-toughness high-strength automatic submerged-arc welding wires and application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510271888.7A CN105081604B (en) | 2015-05-26 | 2015-05-26 | 700MPa high-toughness high-strength automatic submerged-arc welding wires and application method |
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| Publication Number | Publication Date |
|---|---|
| CN105081604A CN105081604A (en) | 2015-11-25 |
| CN105081604B true CN105081604B (en) | 2018-03-23 |
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| CN201510271888.7A Active CN105081604B (en) | 2015-05-26 | 2015-05-26 | 700MPa high-toughness high-strength automatic submerged-arc welding wires and application method |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105458550A (en) * | 2015-12-28 | 2016-04-06 | 武汉铁锚焊接材料股份有限公司 | Gas protection welding wire for ocean engineering |
| CN110877167A (en) * | 2019-12-16 | 2020-03-13 | 钢铁研究总院 | 690 MPa-level submerged arc welding wire for anti-seismic, corrosion-resistant and fire-resistant building structural steel |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01148490A (en) * | 1987-11-21 | 1989-06-09 | Ishikawajima Harima Heavy Ind Co Ltd | Welding process for stress corrosion cracking-resistance ni-cr steel |
| CN100354065C (en) * | 2005-06-28 | 2007-12-12 | 武汉钢铁(集团)公司 | Submerged-arc welding wire for high-strength pipeline steel |
| CN101244495A (en) * | 2008-03-07 | 2008-08-20 | 金秋生 | Welding wire for 90 kilogram grade low welding crack sensibility high-strength steel plate |
| CN101407000A (en) * | 2008-11-18 | 2009-04-15 | 成都新大洋焊接材料有限责任公司 | Low-alloy heat-resistant steel submerged arc welding wire |
| CN101524797A (en) * | 2009-04-13 | 2009-09-09 | 金秋生 | Dedicated welding wire of a 70kg high-strength steel plate for mining machinery use only |
| CN101905391B (en) * | 2010-08-26 | 2013-01-09 | 宜昌猴王焊丝有限公司 | Submerged arc welding wire of high tensile pipeline steel |
| CN102873465B (en) * | 2012-06-30 | 2014-11-26 | 山东索力得焊材股份有限公司 | 700MPa low-alloy high-strength welding wire for heavy machinery and use method thereof |
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