CN100366375C - High strength anti-weather burial arc welding wire - Google Patents
High strength anti-weather burial arc welding wire Download PDFInfo
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- CN100366375C CN100366375C CNB200410025569XA CN200410025569A CN100366375C CN 100366375 C CN100366375 C CN 100366375C CN B200410025569X A CNB200410025569X A CN B200410025569XA CN 200410025569 A CN200410025569 A CN 200410025569A CN 100366375 C CN100366375 C CN 100366375C
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- welding wire
- arc welding
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- 238000003466 welding Methods 0.000 title claims abstract description 47
- 238000009933 burial Methods 0.000 title abstract 2
- 239000000203 mixture Substances 0.000 claims description 11
- 229910052710 silicon Inorganic materials 0.000 claims description 6
- 229910000870 Weathering steel Inorganic materials 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 239000002184 metal Substances 0.000 abstract description 16
- 229910052751 metal Inorganic materials 0.000 abstract description 16
- 238000005260 corrosion Methods 0.000 abstract description 6
- 230000007797 corrosion Effects 0.000 abstract description 6
- 229910052748 manganese Inorganic materials 0.000 abstract description 3
- 229910052717 sulfur Inorganic materials 0.000 abstract description 2
- 230000002349 favourable effect Effects 0.000 abstract 3
- 239000004615 ingredient Substances 0.000 abstract 1
- 239000000126 substance Substances 0.000 description 6
- 229910052759 nickel Inorganic materials 0.000 description 4
- 238000005275 alloying Methods 0.000 description 3
- 229910052796 boron Inorganic materials 0.000 description 3
- 229910052804 chromium Inorganic materials 0.000 description 3
- 229910052750 molybdenum Inorganic materials 0.000 description 3
- 229910052758 niobium Inorganic materials 0.000 description 3
- 229910052702 rhenium Inorganic materials 0.000 description 3
- 229910052720 vanadium Inorganic materials 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- 241000167880 Hirundinidae Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 241001062472 Stokellia anisodon Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Arc Welding In General (AREA)
- Nonmetallic Welding Materials (AREA)
Abstract
The present invention relates to a high strength anti-weather burial arc welding wire which comprises the following ingredients by the mass percentage: 0.04 to 0.15 of C, 1.2 to 2.0 of Mn, at most 0.030 of S, at most 0.030 of P, 0.10 to 0.30 of Cu, 0.40 to 1.2 of Cr, 0.20 to 0.80 of Ni and 0.03 to 0.10 of Ti. Deposited metal and welding joints obtained by the welding wire of the present invention have favorable properties of resisting atmospheric corrosion, and meanwhile, the deposited metal and the welding joints have favorable combination properties; the yield strength is larger than or equal to 450Mpa, the tensile strength is larger than or equal to 550Mpa, and the elongation rate is larger than or equal to 22%; particularly, the favorable impact toughness Akv is larger than or equal to 60 J at low temperature of-40 DEG C.
Description
Technical field
The invention belongs to field of welding material.
Background technology
" being applicable to the high-toughness welding wire of low-carbon micro steel-alloy " patent of existing welding wire for submerged-arc welding such as Chinese patent application number 02119591.9 disclosed University On The Mountain Of Swallows proposition.The chemical composition prescription of welding wire is as follows: C:0.01～0.12%, Si:0.10～0.40%, Mn:0.6～2.3%, Cr:0.01～0.22%, Mo:0.08～0.60%, V:0.004～0.06%, Cu:0.01～0.50%, Ni:0.01～0.60%, Al:0.01～0.06%, Nb:0.02～0.08%, Ti:0.01～0.20%, B:0.0001～0.01%, Re:0.001～0.5%.
This welding wire has certain weathering characteristics, contains Cu, Cr, Ni alloying element.It has adopted multiple alloying element simultaneously, as contains Mo, Nb, V, Ti, B, Re element.The composition design is comparatively complicated, mixed and disorderly, increases to smelt difficulty; Cost is also very high, mainly is applicable to the pipeline manufacturing.
Summary of the invention
The object of the present invention is to provide a kind of high-strength weathering welding wire for submerged-arc welding, can solve the supporting welding wire for submerged-arc welding problem of railway with the weathering steel Q450NQR1 of yield strength 450MPa.
Welding wire of the present invention adopts the weather-proof system of Cu-Cr-Ni main alloying element except C, Si, Mn, S, P, other microalloy element is only selected the Ti element for use.Design mix is simple and clear, and can solve with weather-resistant steel plate Q450NQR1 etc. weatherability such as tough such as strong.
Technical solution of the present invention is, the high-strength weathering welding wire for submerged-arc welding, and its chemical composition is (percentage by weight):
C 0.04～0.15，
Mn 1.2～2.0，
S ≤0.030，
P ≤0.030，
Cu 0.10～0.30，
Cr 0.40～1.2，
Ni 0.20～0.80，
Ti 0.03～0.10。
Further, welding wire of the present invention also comprises Si, Si≤0.35.
Low C, low S, low P mainly are in order to guarantee that deposited metal has high plasticity, low-temperature impact toughness and crack resistance in the welding wire for submerged-arc welding of the present invention.
Adding Cu, Cr, Ni guarantee that deposited metal has high-weatherability, consider the matching with the mother metal composition simultaneously.Ni content of the present invention is low, and 0.20～0.80, the common content of welding wire that the low-temperature impact toughness requirement is arranged is greater than 1.0%, and Ni content of the present invention has only 0.20～0.80, has guaranteed in the weld seam proper ratio with Cu.
Reasonably Ti content contains 0.03～0.10, does not contain Mo, B and Re element; Do not contain Nb, V microalloy element; Add a certain amount of Ti, can improve low-temperature impact toughness by improving tissue on the one hand, also can improve its welding procedure on the other hand.
Weather-proof welding wire for submerged-arc welding adopts the foundation of this chemical composition proportioning, and the one, can guarantee its good comprehensive mechanical properties; The 2nd, can guarantee on indexs such as chemical composition, physicochemical property, weatherability the optimum Match of weld seam and mother metal.
Beneficial effect of the present invention
Chemical composition design of the present invention is easy, economical, directly reaches the high weather-proof characteristic of high-strength and high ductility, and microalloy element only uses Ti, does not have other microalloy element of compound use.
The present invention compared with prior art has following advantage:
1. welding wire gained deposited metal of the present invention and welding point have good atmospheric corrosion resistance, have good comprehensive performances simultaneously, and especially-40 ℃ low-temperature impact toughness is fine.
2. the combination property of wire rod of the present invention, welding wire gained deposited metal is: yield strength: 〉=450MPa; Tensile strength: 〉=550MPa; Percentage elongation: 〉=22%; Akv 〉=the 60J of (40 ℃ condition under).
The specific embodiment
Embodiment sees Table 1.
The finished product chemical composition of table 1 embodiment welding wire
| Numbering | C | Si | Mn | Cu | Cr | Ni | Ti |
| 1 | 0.04 | 0.15 | 1.80 | 0.30 | 0.40 | 0.50 | 0.100 |
| 2 | 0.07 | 0.20 | 1.50 | 0.20 | 0.60 | 0.35 | 0.080 |
| 3 | 0.15 | 0.33 | 1.45 | 0.10 | 0.85 | 0.26 | 0.035 |
| 4 | 0.11 | 0.08 | 1.35 | 0.15 | 0.95 | 0.68 | 0.060 |
| 5 | 0.08 | 0.05 | 1.23 | 0.16 | 1.13 | 0.80 | 0.050 |
The mechanical property of table 2 embodiment welding wire deposited metal
| Numbering | σ 0.2 (MPa) | σ b (MPa) | δ 5 (％) | A kv *(J) | |
| Room temperature | -40℃ | ||||
| 1 | 475 | 560 | 24 | 146 | 102 |
| 2 | 475 | 565 | 30 | 126 | 96 |
| 3 | 525 | 620 | 25 | 138 | 118 |
| 4 | 480 | 570 | 26 | 150 | 106 |
| 5 | 530 | 625 | 25 | 130 | 95 |
Annotate: what deposited metal adopted is welding wire+SJ101 solder flux
A
Kv *Be the impact numerical value mean value of five welding wire sample CVN tests;
Table 2 shows that when the welding wire of being implemented changed, the performance of deposited metal all can realize high strength, high-elongation, high/low-temperature impact toughness in composition range of the present invention.
What atmospheric exposure test was adopted is indoor accelerate corrosion test (cycle is soaked into corrosion test), all compares with the mother metal Q450NQR1 with high-weatherability; Result of the test sees Table 3.
The corrosive nature of table 3 embodiment welding wire deposited metal
| Numbering | Relative rate of corrosion |
| 1 | 99 |
| 2 | 100 |
| 3 | 99 |
| Q450NQR1 | 98 |
Annotate: what deposited metal adopted is welding wire+SJ101 solder flux
The atmospheric corrosion resistance ability and the mother metal of table 3 explanation welding wire deposited metal are suitable.
High-strength welding wire for submerged-arc welding of the present invention is suitable for welding other weathering steel of tensile strength 550MPa level, is specially adapted to fields such as rail truck, building structure, bridge, engineering machinery, container.
Claims (3)
1. a high-strength weathering is used for the welding wire for submerged-arc welding of the weathering steel of yield strength 450MPa, and its composition is a percentage by weight:
C 0.04～0.15，
Mn 1.2～2.0，
S ≤0.030，
P ≤0.030，
Cu 0.10～0.30，
Cr 0.40～1.2，
Ni 0.20～0.80，
Ti 0.03～0.10。
2. high-strength weathering welding wire for submerged-arc welding as claimed in claim 1 is characterized in that, also comprises Si, Si≤0.35.
3. high-strength weathering welding wire for submerged-arc welding as claimed in claim 1 is characterized in that: be used for the rail truck manufacturing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200410025569XA CN100366375C (en) | 2004-06-29 | 2004-06-29 | High strength anti-weather burial arc welding wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200410025569XA CN100366375C (en) | 2004-06-29 | 2004-06-29 | High strength anti-weather burial arc welding wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1714985A CN1714985A (en) | 2006-01-04 |
| CN100366375C true CN100366375C (en) | 2008-02-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200410025569XA Expired - Lifetime CN100366375C (en) | 2004-06-29 | 2004-06-29 | High strength anti-weather burial arc welding wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100366375C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102052383B (en) * | 2009-11-11 | 2015-01-21 | 中国第一汽车集团公司 | Automobile transmission shaft with thin walled tube and manufacturing method thereof |
| CN102756219B (en) * | 2011-04-25 | 2018-09-04 | 宝山钢铁股份有限公司 | A kind of welding wire, wire rod and its application |
| CN103464926A (en) * | 2013-09-25 | 2013-12-25 | 张盘 | High-performance submerged-arc welding wire, welding seam metal and application of high-performance submerged-arc welding wire and welding seam metal |
| CN106001987B (en) * | 2016-05-30 | 2018-05-08 | 燕山大学 | One kind exempts from the weather-proof welding wire for submerged-arc welding of the weather-proof steel bridge of application |
| CN106944764B (en) * | 2017-05-19 | 2020-05-12 | 哈焊所华通（常州）焊业股份有限公司 | High-performance corrosion-resistant submerged-arc welding material for bridge |
| CN107009049B (en) * | 2017-05-24 | 2019-07-30 | 中国石油天然气集团公司 | One kind being suitable for L360/X52 or less low level pipe line steel submerged arc welding welding wire |
| CN109454359A (en) * | 2018-09-17 | 2019-03-12 | 昆山中冶宝钢焊接材料有限公司 | A kind of tensile strength 1000MPa grades of welding wire for submerged-arc welding |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5487648A (en) * | 1977-12-26 | 1979-07-12 | Nippon Kokan Kk <Nkk> | Submerged arc welding wire |
| US4256949A (en) * | 1977-03-17 | 1981-03-17 | Union Carbide Corporation | Method and wire for submerged arc welding of pipe |
| JPS58221261A (en) * | 1982-06-17 | 1983-12-22 | Kawasaki Steel Corp | Steel for steel pipe to be welded by submerged arc welding |
| JPS61186193A (en) * | 1985-02-13 | 1986-08-19 | Nippon Steel Corp | High-toughness submerged arc welding material for high tensile steel |
| JPS61262485A (en) * | 1985-05-16 | 1986-11-20 | Kawasaki Steel Corp | Wire for submerged arc welding |
| JPH11314193A (en) * | 1989-09-11 | 1999-11-16 | Nippon Steel Corp | Submark welding method for refractory steel |
-
2004
- 2004-06-29 CN CNB200410025569XA patent/CN100366375C/en not_active Expired - Lifetime
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4256949A (en) * | 1977-03-17 | 1981-03-17 | Union Carbide Corporation | Method and wire for submerged arc welding of pipe |
| JPS5487648A (en) * | 1977-12-26 | 1979-07-12 | Nippon Kokan Kk <Nkk> | Submerged arc welding wire |
| JPS58221261A (en) * | 1982-06-17 | 1983-12-22 | Kawasaki Steel Corp | Steel for steel pipe to be welded by submerged arc welding |
| JPS61186193A (en) * | 1985-02-13 | 1986-08-19 | Nippon Steel Corp | High-toughness submerged arc welding material for high tensile steel |
| JPS61262485A (en) * | 1985-05-16 | 1986-11-20 | Kawasaki Steel Corp | Wire for submerged arc welding |
| JPH11314193A (en) * | 1989-09-11 | 1999-11-16 | Nippon Steel Corp | Submark welding method for refractory steel |
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| Publication number | Publication date |
|---|---|
| CN1714985A (en) | 2006-01-04 |
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