CN101913035A - High-tenacity gas shielded welding wire for welding low-temperature steel and using method thereof - Google Patents
High-tenacity gas shielded welding wire for welding low-temperature steel and using method thereof Download PDFInfo
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- CN101913035A CN101913035A CN 201010262834 CN201010262834A CN101913035A CN 101913035 A CN101913035 A CN 101913035A CN 201010262834 CN201010262834 CN 201010262834 CN 201010262834 A CN201010262834 A CN 201010262834A CN 101913035 A CN101913035 A CN 101913035A
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- 238000003466 welding Methods 0.000 title claims abstract description 70
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 17
- 239000010959 steel Substances 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims description 7
- 239000000126 substance Substances 0.000 claims abstract description 15
- 239000012535 impurity Substances 0.000 claims abstract description 10
- 229910052786 argon Inorganic materials 0.000 claims abstract description 9
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 4
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 3
- 239000000203 mixture Substances 0.000 claims description 12
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 5
- 239000007789 gas Substances 0.000 abstract description 19
- 229910052751 metal Inorganic materials 0.000 abstract description 10
- 239000002184 metal Substances 0.000 abstract description 10
- XKRFYHLGVUSROY-UHFFFAOYSA-N argon Substances [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 abstract description 7
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 6
- 229910052717 sulfur Inorganic materials 0.000 abstract description 6
- 229910052760 oxygen Inorganic materials 0.000 abstract description 5
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 4
- 229910052719 titanium Inorganic materials 0.000 abstract description 4
- 229910052726 zirconium Inorganic materials 0.000 abstract description 4
- 229910052748 manganese Inorganic materials 0.000 abstract description 3
- 229910052799 carbon Inorganic materials 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 3
- 229910000859 α-Fe Inorganic materials 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000007771 core particle Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004021 metal welding Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- ZVWKZXLXHLZXLS-UHFFFAOYSA-N zirconium nitride Chemical compound [Zr]#N ZVWKZXLXHLZXLS-UHFFFAOYSA-N 0.000 description 1
Abstract
The invention provides a high-tenacity gas shielded welding wire for welding low-temperature steel, which is suitable for welding the low-temperature steel subjected to service in the environment of over minus 60 DEG C. The gas shielded welding wire comprises the following chemical components in percentage by mass: 0.04 to 0.10 percent of C, 0.20 to 0.60 percent of Si, 1.20 to 1.60 percent of Mn, 1.5 to 2.0 percent of Ni, 0.10 to 0.30 percent of Mo, 0.02 to 0.10 percent of Ti, 0.02 to 0.08 percent of Zr, less than or equal to 0.010 percent of S, less than or equal to 0.010 percent of P, less than or equal to 0.0025 percent of O, less than or equal to 0.0070 percent of N, and the balance of Fe and inevitable impurities. The welding wire welds by adopting Ar + 20%CO2 full-argon gas shielding so a weld metal has high low-temperature tenacity in a welding state and under a heat treatment condition after welding.
Description
Technical field
The invention belongs to field of welding material, it is higher to be specially a kind of Ni content, the high-ductility gas shielded welding wire and the using method thereof of Ti, Zr microalloying.
Background technology
Along with Welding Structure under low temperature environment, be on active service and use increasingly extensive, all need under low temperature environment, use as low-temperature pressure container, gas transmission line, petrochemical equipment, freezing equipment, food industry and liquid gas storage facilities etc.Therefore, the ability that requires this type of steel to have enough low-temperature flexibilities and high anti-low temperature brittleness is an overriding concern.This will be to the low-temperature flexibility of welding point, and then welding material and welding procedure are had higher requirement.Yet it is few to satisfy the gas protecting welding wire that uses on low temperature environment military service equipment more than-60 ℃ in existing technology.
The at present disclosed solid core welding wire that is used for the low-temperature steel welding mainly contains Chinese invention patent two.A kind of welding wire is owing to S, P content are higher, and ni content is lower, can not satisfy the low-temperature flexibility requirement of weld metal under-60 ℃ of environment; Another kind of welding wire belongs to submerged-arc welding wire, needs the corresponding solder flux of coupling could satisfy the low-temperature flexibility requirement of weld seam, so can not be as the welding material of gas shielded arc welding.
Summary of the invention
The gas protecting welding wire and the using method thereof that the object of the present invention is to provide a kind of low-temperature steel that is suitable for being on active service to weld at environment more than-60 ℃; C, S, P, O content have been controlled in the welding wire strictness; add Ti, the Zr element of an amount of Ni element and trace; and adopt argon-rich gas shielded welding, make deposited metal have the ability of good low-temperature flexibility and anti-low temperature brittleness.
For achieving the above object, the present invention adopts following technical proposals:
A kind of high-tenacity gas shielded welding wire for welding low-temperature steel, described welding wire comprise that the mass percent (%) of following chemical composition and each chemical composition is: C:0.04～0.10, Si:0.20～0.60; Mn:1.20～1.60; Ni:1.5～2.0, Mo:0.10～0.30, Ti:0.02～0.10; Zr:0.02～0.08; S :≤0.010, P :≤0.010, O :≤0.0025; N :≤0.0070, surplus is Fe and unavoidable impurities.
Above-mentioned high-tenacity gas shielded welding wire for welding low-temperature steel, the mass percent of its chemical composition (%) is: C:0.052, Si:0.45; Mn:1.53; Ni:1.56, Mo:0.18, Ti:0.047; Zr:0.032; S:0.003, P:0.008, O:0.0018; N:0.0048, surplus is Fe and unavoidable impurities.
Above-mentioned high-tenacity gas shielded welding wire for welding low-temperature steel, the mass percent of its chemical composition (%) is: C:0.070, Si:0.46; Mn:1.48; Ni:1.79, Mo:0.24, Ti:0.056; Zr:0.042; S:0.004, P:0.007, O:0.0021; N:0.0053, surplus is Fe and unavoidable impurities.
Above-mentioned high-tenacity gas shielded welding wire for welding low-temperature steel; C mass percent (%) content is 0.04～0.10 in the welding wire; mass percent (%) scope of adding Ni and Mo element is Ni1.5～2.0; the Ti of trace, mass percent (%) scope Ti:0.02～0.10 of Zr element are added, Zr:0.02～0.08 in Mo:0.10～0.30; and each mass percent (%) S≤0.010; P≤0.010, O≤0.0025, N≤0.0070.
A kind of using method of above-mentioned welding wire, adopting volume ratio during this welding wire welding is 80%Ar+20%CO
2Mixed gas protected.
Reduce the content of C content and strict control S, P, impurity elements such as O, N in the welding wire of the present invention, help reducing the ductile-brittle transition temperature of weld metal, improve the low-temperature flexibility of weld seam;
Add an amount of Mn, Si element, good deoxidation can be arranged, favourable to improving toughness, the effect that while Mn takes off S in addition;
Add the Ni element, solid solution can significantly improve the low-temperature flexibility of weld seam in ferrite; Add a spot of Mo and can improve the temper brittleness of weld metal;
Add further refinement seam organization of micro-Ti, Zr element, improve the low-temperature flexibility of weld metal.
TiO and ZrO that Ti, Zr and O form have promoted the formation of weld seam acicular ferrite structure, and Zr also can generate zirconium nitride with N chemical combination simultaneously, reduces the nomadic nitrogen in the weld seam, improves the toughness of weld seam.
Welding wire of the present invention compared with prior art has following characteristics:
1. welding wire of the present invention is low owing to C content, and has added an amount of Mn, Ni element, has reduced the ductile-brittle transition temperature of weld seam.
2. welding wire of the present invention forms oxide forming core particle by adding Ti, the Zr element of trace with O, impels the formation of weld seam acicular ferrite, has further improved the toughness of weld metal.
3. welding wire of the present invention is controlled S, P, impurity elements such as O, N owing to strict, and has good cracking resistance and low-temperature flexibility
4. welding wire of the present invention adopts 80%Ar+20%CO
2Mixed gas protected, can be welded on the low-temperature steel that environment is on active service more than-60 ℃.
The specific embodiment
The invention will be further described below in conjunction with test data and embodiment.
The chemical composition scope of welding wire and the used mass percent of following examples according to the present invention, adopt many stoves of vacuum induction furnace smelting welding wire steel, through forge, rolling, hot candied, copper facing and twine operation such as axle, be processed into the finished product welding wire of diameter 1.2mm, the chemical composition of each stove welding wire is as shown in table 1.
Each stove welding wire all adopts volume 80%Ar+20%CO
2Argon-rich gas shielded, same parts to be carried out same people weld equally, the identical time used identical device under the same conditions it to be carried out the same mechanical performance test after welding was finished, and the mechanical performance of gained deposited metal is as shown in table 2.
The chemical composition of welding wire in table 1 embodiment and each example
(mass percent %, surplus is Fe and unavoidable impurities in the listed chemical analysis)
The mechanical performance of each embodiment welding wire deposited metal of table 2
This shows, S, P content height among the present invention, and C content has been controlled in strictness, add Ti, the Zr element of an amount of Ni element and trace, and S≤0.010, P≤0.010, O≤0.0025, N≤0.0070 can be satisfied the low-temperature flexibility requirement of weld metal under-60 ℃ of environment fully.
At 80%Ar+20%CO
2The argon-rich gas shielded welding as seen from Table 2, adopted the welding wire of this chemical composition, and good mechanical property guarantees that metal welding seam has excellent low-temperature flexibility.
Claims (5)
1.-the kind high-tenacity gas shielded welding wire for welding low-temperature steel is characterized in that, described welding wire comprises that the mass percent (%) of following chemical composition and each chemical composition is: C:0.04～0.10; Si:0.20～0.60, Mn:1.20～1.60, Ni:1.5～2.0; Mo:0.10～0.30; Ti:0.02～0.10, Zr:0.02～0.08, S :≤0.010; P :≤0.010; O :≤0.0025, N :≤0.0070, surplus is Fe and unavoidable impurities.
2. high-tenacity gas shielded welding wire for welding low-temperature steel according to claim 1 is characterized in that, the mass percent of its chemical composition (%) is: C:0.052; Si:0.45, Mn:1.53, Ni:1.56; Mo:0.18; Ti:0.047, Zr:0.032, S:0.003; P:0.008; O:0.0018, N:0.0048, surplus is Fe and unavoidable impurities.
3. high-tenacity gas shielded welding wire for welding low-temperature steel according to claim 1 is characterized in that, the mass percent of its chemical composition (%) is: C:0.070; Si:0.46, Mn:1.48, Ni:1.79; Mo:0.24; Ti:0.056, Zr:0.042, S:0.004; P:0.007; O:0.0021, N:0.0053, surplus is Fe and unavoidable impurities.
4. a kind of high-tenacity gas shielded welding wire for welding low-temperature steel according to claim 1; it is characterized in that; C mass percent (%) content is 0.04～0.10 in the welding wire, and mass percent (%) scope of adding Ni and Mo element is Ni1.5～2.0, Mo:0.10～0.30; add the Ti of trace, mass percent (%) scope Ti:0.02～0.10 of Zr element; Zr:0.02～0.08, and each mass percent (%) S≤0.010, P≤0.010; O≤0.0025, N≤0.0070.
5. the using method of any described welding wire of claim 1 to 4 is characterized in that, adopting volume ratio during this welding wire welding is 80%Ar+20%CO
2Mixed gas protected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102628341A CN101913035B (en) | 2010-08-23 | 2010-08-23 | High-tenacity gas shielded welding wire for welding low-temperature steel and using method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102628341A CN101913035B (en) | 2010-08-23 | 2010-08-23 | High-tenacity gas shielded welding wire for welding low-temperature steel and using method thereof |
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| Publication Number | Publication Date |
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| CN101913035A true CN101913035A (en) | 2010-12-15 |
| CN101913035B CN101913035B (en) | 2012-08-15 |
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| CN2010102628341A Active CN101913035B (en) | 2010-08-23 | 2010-08-23 | High-tenacity gas shielded welding wire for welding low-temperature steel and using method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102049597A (en) * | 2011-01-07 | 2011-05-11 | 南京钢铁股份有限公司 | Argon-enriched mixed gas protection welding method for high-strength abrasion-resistant steel |
| CN102615451A (en) * | 2011-01-31 | 2012-08-01 | 株式会社神户制钢所 | Bonded flux and solid wire for submerged arc welding, and method for submerged arc welding of steel for low temperature service |
| CN103111772A (en) * | 2013-02-25 | 2013-05-22 | 江苏省沙钢钢铁研究院有限公司 | Weather-resistance steel gas-protection welding wire with excellent toughness under low temperature |
| CN103464930A (en) * | 2013-09-18 | 2013-12-25 | 张盘 | Welding wire and welding flux for 9Ni low-temperature steel submerged arc welding as well as application of welding wire and welding flux |
| CN111571061A (en) * | 2020-05-26 | 2020-08-25 | 哈尔滨焊接研究院有限公司 | Gas shielded welding wire |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1118295A (en) * | 1995-07-21 | 1996-03-13 | 冶金工业部钢铁研究总院 | Gas shielded welding wire |
| CN1343544A (en) * | 2000-09-20 | 2002-04-10 | 中国科学院金属研究所 | High-strength high-toughness weld wire for hidden arc welding of pressure container |
| US20020043305A1 (en) * | 2000-08-07 | 2002-04-18 | Exxonmobil Upstream Research Company | Weld metals with superior low temperature toughness for joining high strength, low alloy steels |
| CN1533315A (en) * | 2002-01-31 | 2004-09-29 | ������������ʽ���� | Steel wire for carbon dioxide shielded arc welding and welding process asing the same |
| JP2008023569A (en) * | 2006-07-24 | 2008-02-07 | Jfe Steel Kk | METHOD FOR PRODUCING ULTRAHIGH-STRENGTH WELDED STEEL PIPE HAVING TENSILE STRENGTH EXCEEDING 800 MPa |
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2010
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1118295A (en) * | 1995-07-21 | 1996-03-13 | 冶金工业部钢铁研究总院 | Gas shielded welding wire |
| US20020043305A1 (en) * | 2000-08-07 | 2002-04-18 | Exxonmobil Upstream Research Company | Weld metals with superior low temperature toughness for joining high strength, low alloy steels |
| CN1343544A (en) * | 2000-09-20 | 2002-04-10 | 中国科学院金属研究所 | High-strength high-toughness weld wire for hidden arc welding of pressure container |
| CN1533315A (en) * | 2002-01-31 | 2004-09-29 | ������������ʽ���� | Steel wire for carbon dioxide shielded arc welding and welding process asing the same |
| JP2008023569A (en) * | 2006-07-24 | 2008-02-07 | Jfe Steel Kk | METHOD FOR PRODUCING ULTRAHIGH-STRENGTH WELDED STEEL PIPE HAVING TENSILE STRENGTH EXCEEDING 800 MPa |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102049597A (en) * | 2011-01-07 | 2011-05-11 | 南京钢铁股份有限公司 | Argon-enriched mixed gas protection welding method for high-strength abrasion-resistant steel |
| CN102615451A (en) * | 2011-01-31 | 2012-08-01 | 株式会社神户制钢所 | Bonded flux and solid wire for submerged arc welding, and method for submerged arc welding of steel for low temperature service |
| CN102615451B (en) * | 2011-01-31 | 2015-08-19 | 株式会社神户制钢所 | The submerged-arc welding method of bonded flux used for submerged arc welding and solid core welding wire and cryogenic steel |
| CN103111772A (en) * | 2013-02-25 | 2013-05-22 | 江苏省沙钢钢铁研究院有限公司 | Weather-resistance steel gas-protection welding wire with excellent toughness under low temperature |
| CN103464930A (en) * | 2013-09-18 | 2013-12-25 | 张盘 | Welding wire and welding flux for 9Ni low-temperature steel submerged arc welding as well as application of welding wire and welding flux |
| CN103464930B (en) * | 2013-09-18 | 2016-05-18 | 海宁瑞奥金属科技有限公司 | Welding wire and solder flux and the application thereof for submerged arc welding of a kind of 9Ni low-temperature steel |
| CN111571061A (en) * | 2020-05-26 | 2020-08-25 | 哈尔滨焊接研究院有限公司 | Gas shielded welding wire |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101913035B (en) | 2012-08-15 |
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