CN107283084B - A kind of marine atmosphere corrosion-resisting steel submerged arc flux-cored wire - Google Patents
A kind of marine atmosphere corrosion-resisting steel submerged arc flux-cored wire Download PDFInfo
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- CN107283084B CN107283084B CN201710488901.3A CN201710488901A CN107283084B CN 107283084 B CN107283084 B CN 107283084B CN 201710488901 A CN201710488901 A CN 201710488901A CN 107283084 B CN107283084 B CN 107283084B
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- 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
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- 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
-
- 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
- B23K35/36—Selection of non-metallic compositions, e.g. coatings, fluxes; Selection of soldering or welding materials, conjoint with selection of non-metallic compositions, both selections being of interest
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- Mechanical Engineering (AREA)
- Nonmetallic Welding Materials (AREA)
Abstract
The present invention provides a kind of marine atmosphere corrosion-resisting steel submerged arc flux-cored wires, including crust and medicine core, the medicine core includes the component of following parts by weight, 3~20 1~10 part of Fen ﹑ rare earth fluoride of sodium fluoride, 2~20 parts of potassium sodium arc stabilizer, 3~20 parts of silicomangan, 2~20 parts of manganese metal, 3~20 parts of magnesium powder, 60~150 parts of nickel powder, 1~5 part of molybdenum powder, 10~30 parts of copper powder, 5~20 parts of ferrotianium, 1~5 part of ferro-boron, 1~5 part of rare earth ferrosilicon, 800~850 parts of iron powder.The performances such as its deposited metal tensile strength, elongation percentage, impact flexibility of the invention are more excellent；Deposited metal diffusible hydrogen content is lower, and has good cracking resistance；Its every ingredient, performance are able to satisfy needs of the 500MPa grades of marine atmosphere corrosion-resisting steels of tensile strength in bridge welding.
Description
Technical field
The invention belongs to flux-cored wire technical fields, weld more particularly, to a kind of marine atmosphere corrosion-resisting steel submerged arc medicine core
Silk.
Background technique
Exempting from the weather-proof steel bridge of coating has the comprehensive advantage that environmental protection, maintenance cost are low, life cycle management is long.Developed country is weather-proof
Steel Bridge development is more early, and the weather-proof steel bridge in the U.S. accounts for steel bridge sum more than 50%；Canada has about 90% or so steel bridge to adopt
Also reach 20% or so with the ratio of weathering steel, the weather-proof steel bridge of Japan.And the practical implementation of the weather-proof steel bridge in China just rises
Step.
The corrosion resistance index of weathering steel bridge steel plate is usually required that 6.0 or more.
In GB/T4171-2008 " weather resistant structural steel ", corrosion resistance index I=26.01 (%Cu)+3.88 (%Ni)+
1.20 (%Cr)+1.49 (%Si)+17.28 (%P) -7.29 (%Cu) (%Ni) -9.10 (%Ni) (%P) -33.39 (%Cu)
(%Cu)
Corrosion resistance index is the corrosion resistance based on normal atmospheric industrial environment light plate.
In coastal area, the resistance to sea atmosphere corrosion performance of weather-proof Steel Bridge is more attached most importance in China main economic prosperity city
It wants." weatherability alloy index " can preferably reflect corrosion resistance of the bridge under naval air environment.
Weatherability alloy index V=1/ { (1.0-0.16 [C]) × (1.05-0.05 [Si]) × (1.04-0.016 [Mn])
×(1.0-0.5[P])×(1.0+1.9[S])×(1.0-0.10[Cu])×(1.0-0.12[Ni])×(1.0-0.3[Mo])×
(1.0-1.7 [Ti]) }, wherein [C], [Si], [Mn], [P], [S], [Cu], [Ni], [Mo] and [Ti] respectively represent C, Si, Mn,
P, the deposited metal weight percent of S, Cu, Ni, Mo and Ti.
Therefore a kind of submerged arc flux-cored wire that weatherability is strong seems especially important.
Summary of the invention
In view of this, the present invention is directed to propose a kind of marine atmosphere corrosion-resisting steel submerged arc flux-cored wire, is used for mating resistance to
Sea atmosphere corrosion steel is used for the bridge construction of resistance to sea atmosphere corrosion, and the bridge of resistance to sea atmosphere corrosion can exempt coating process,
With environment-friendly advantage；Periodic maintenance expense can be reduced, overall cost is low.
In order to achieve the above objectives, the technical scheme of the present invention is realized as follows:
A kind of marine atmosphere corrosion-resisting steel submerged arc flux-cored wire, including crust and medicine core, the medicine core include following weight
Measure number component, 3~20 1~10 part of Fen ﹑ rare earth fluoride of sodium fluoride, 2~20 parts of potassium sodium arc stabilizer, 3~20 parts of silicomangan,
2~20 parts of manganese metal, 3~20 parts of magnesium powder, 60~150 parts of nickel powder, 1~5 part of molybdenum powder, 10~30 parts of copper powder, 5~20 parts of ferrotianium,
1~5 part of ferro-boron, 1~5 part of rare earth ferrosilicon, 800~850 parts of iron powder.
Preferably, the medicine core includes the component of following parts by weight, 5~15 2~10 parts of Fen ﹑ rare earth fluoride of sodium fluoride,
5~15 parts of potassium sodium arc stabilizer, 5~20 parts of silicomangan, 7~15 parts of manganese metal, 3~15 parts of magnesium powder, 80~150 parts of nickel powder, molybdenum
2~5 parts of powder, 15~30 parts of copper powder, 8~16 parts of ferrotianium, 2~4 parts of ferro-boron, 2~5 parts of rare earth ferrosilicon, 800~820 parts of iron powder.
Preferably, flux-cored wire weatherability alloy index V >=1.60,
V=1/ { (1.0-0.16 [C]) × (1.05-0.05 [Si]) × (1.04-0.016 [Mn]) × (1.0-0.5 [P])
×(1.0+1.9[S])×(1.0-0.10[Cu])×(1.0-0.12[Ni])×(1.0-0.3[Mo])×(1.0-1.7
[Ti]) }, wherein [C], [Si], [Mn], [P], [S], [Cu], [Ni], [Mo] and [Ti] respectively represent C, Si, Mn, P, S, Cu,
The deposited metal weight percent of Ni, Mo and Ti.
Preferably, the medicine core includes the component of following parts by weight, 58 parts of Fen ﹑ rare earth fluoride of sodium fluoride, potassium sodium stabilising arc
15 parts of agent, 20 parts of silicomangan, 5 parts of manganese metal, 5 parts of magnesium powder, 120 parts of nickel powder, 4 parts of molybdenum powder, 25 parts of copper powder, 8 parts of ferrotianium, ferro-boron
4 parts, 4 parts of rare earth ferrosilicon, 800 parts of iron powder.
Preferably, it is 30~40% that the medicine core, which accounts for the ratio of welding wire total weight,.
Preferably, not less than 90 parts, the portion rate of nickel powder and copper powder is 4~6:1 for the nickel powder, molybdenum powder, copper powder total number.
Preferably, mass fraction >=99.5% containing nickel in the nickel powder, the mass fraction containing molybdenum in molybdenum powder >=
99.5%, mass fraction >=99.5% containing copper in copper powder.
The present invention also provides marine atmosphere corrosion-resisting steel as described above with submerged arc flux-cored wire in 500MPa grades of bridges
Application in steel welding.
Ferro-boron: B can inhibit the generation of crystal boundary pro-eutectoid ferrite, and suitable boron, which is added, can be improved the intensity of deposited metal,
But low temperature impact properties decline afterwards as the increase of B mass fraction first rises.
Molybdenum powder: can refine crystal grain, improve intensity, harden ability, improve the removability of slag, improve arc stability, but molybdenum
Too high levels can be such that toughness deteriorates.
Fluoride: adjusting the fusing point and viscosity of slag, improves the removability of slag, reduces the content of Diffusible Hydrogen In Deposited Metal.
Ferrosilicon: silicon is deoxidier, can refine molten drop, improves arc stability, improves the burn-off rate of welding wire, is improved molten
The yield point and tensile strength of metallisation.But too high levels will lead to that intensity is excessively high, toughness decline.
Nickel powder: nickel can reduce the ductile-brittle transition temperature of weld metal, under certain condition, with the increase of nickel, intensity
It improves, low-temperature impact toughness improves significantly, while nickel has higher corrosion resistance to soda acid, at high temperature
There are antirust and temperature capacity；Nickel content, which increases, adds up to index increase effect obvious weatherability, and it is corrosion-resistant can to effectively improve steel plate
Ability, but Ni too high levels, will increase the hot cracking tendency of deposited metal.
Copper powder: copper can improve the intensity and toughness of deposited metal, especially raising atmospheric corrosion resistance.The disadvantage is that in heat
It is easy to produce when processing hot-short.Copper is also the essential element in weatherability alloy index, to the corrosion resistance effect for improving steel plate
Obviously.
Ferrotianium: Ti is strong deoxidier.It can promote the formation of needle-shaped iron element, refine crystal grain, and play the role of slag making.
Iron powder: being conducive to medicinal powder and be uniformly distributed, and the deposition efficiency and arc stability of welding can be improved.
Silicomangan: mainly deoxidier can reduce the oxygen content of weld metal.When its additional amount is less than 5%, deoxidation becomes
Difference, impact flexibility are deteriorated；Additional amount is more than 20%, then intensity is excessively high, and impact flexibility reduces.
Compared with the existing technology, marine atmosphere corrosion-resisting steel of the present invention submerged arc flux-cored wire has following excellent
Gesture:
Marine atmosphere corrosion-resisting steel of the present invention submerged arc flux-cored wire, deposited metal tensile strength, elongation percentage,
The performances such as impact flexibility are more excellent；Deposited metal diffusible hydrogen content is lower, and has good cracking resistance；Its every ingredient,
Performance is able to satisfy needs of the 500MPa grades of marine atmosphere corrosion-resisting steels in Steel Bridge welding.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.
A kind of marine atmosphere corrosion-resisting steel submerged arc flux-cored wire, using SPCC-SD cold-rolled low carbon steel steel band as welding wire raw material,
It is manufactured using conventional medicine core Transition-metal Alloys mode and general medicinal powder specification and flux-cored wire production technology, gage of wire 4.0mm.
Embodiment 1
A kind of marine atmosphere corrosion-resisting steel submerged arc flux-cored wire, the medicine core include the component of following parts by weight, fluorine
Change 15 3 parts of Fen ﹑ rare earth fluoride of sodium, 5 parts of potassium sodium arc stabilizer, 5 parts of silicomangan, 20 parts of manganese metal, 15 parts of magnesium powder, 80 parts of nickel powder,
2 parts of molybdenum powder, 15 parts of copper powder, 16 parts of ferrotianium, 2 parts of ferro-boron, 2 parts of rare earth ferrosilicon, 800 parts of iron powder.
The ratio that the medicine core accounts for welding wire total weight is 38%.
Flux-cored wire deposited metal performance: (101 solder flux of cooperation sintering)
Weatherability alloy index V:
V=1/ { (1.0-0.16 [C]) × (1.05-0.05 [Si]) × (1.04-0.016 [Mn]) × (1.0-0.5 [P])
×(1.0+1.9[S])×(1.0-0.10[Cu])×(1.0-0.12[Ni])×(1.0-0.3[Mo])×(1.0-1.7
[Ti]) }, wherein [C], [Si], [Mn], [P], [S], [Cu], [Ni], [Mo] and [Ti] respectively represent C, Si, Mn, P, S, Cu,
The deposited metal weight percent of Ni, Mo and Ti.
The weatherability being calculated adds up to index V:1.73.
From standard JIS Z3320-2012, " atmospheric corrosion resistant steel gas shield and self-shield are golden for " weatherability alloy index " reference
Belong to arc welding flux cored wire ".What the index reflected is the index of metal material atmospheric corrosion resistance, and V value is higher, and resistance to atmosphere is rotten
Corrosion can be more excellent.
Embodiment two
A kind of marine atmosphere corrosion-resisting steel submerged arc flux-cored wire, the medicine core include the component of following parts by weight, fluorine
Change 10 5 parts of Fen ﹑ rare earth fluoride of sodium, 10 parts of potassium sodium arc stabilizer, 10 parts of silicomangan, 10 parts of manganese metal, 10 parts of magnesium powder, nickel powder 100
Part, 3 parts of molybdenum powder, 20 parts of copper powder, 12 parts of ferrotianium, 3 parts of ferro-boron, 3 parts of rare earth ferrosilicon, 820 parts of iron powder.
The ratio that the medicine core accounts for welding wire total weight is 35%.
Flux-cored wire deposited metal performance: (101 solder flux of cooperation sintering)
Weatherability alloy index V:
V=1/ { (1.0-0.16 [C]) × (1.05-0.05 [Si]) × (1.04-0.016 [Mn]) × (1.0-0.5 [P])
×(1.0+1.9[S])×(1.0-0.10[Cu])×(1.0-0.12[Ni])×(1.0-0.3[Mo])×(1.0-1.7
[Ti]) }, wherein [C], [Si], [Mn], [P], [S], [Cu], [Ni], [Mo] and [Ti] respectively represent C, Si, Mn, P, S, Cu,
The deposited metal weight percent of Ni, Mo and Ti.
The weatherability alloy index V:1.79 being calculated.
Embodiment three
A kind of marine atmosphere corrosion-resisting steel submerged arc flux-cored wire, the medicine core include the component of following parts by weight, fluorine
Change 58 parts of Fen ﹑ rare earth fluoride of sodium, 15 parts of potassium sodium arc stabilizer, 20 parts of silicomangan, 5 parts of manganese metal, 5 parts of magnesium powder, 120 parts of nickel powder,
4 parts of molybdenum powder, 25 parts of copper powder, 8 parts of ferrotianium, 4 parts of ferro-boron, 4 parts of rare earth ferrosilicon, 800 parts of iron powder.
The ratio that the medicine core accounts for welding wire total weight is 32%.
Flux-cored wire deposited metal performance: (101 solder flux of cooperation sintering)
Weatherability alloy index V:
V=1/ { (1.0-0.16 [C]) × (1.05-0.05 [Si]) × (1.04-0.016 [Mn]) × (1.0-0.5 [P])
×(1.0+1.9[S])×(1.0-0.10[Cu])×(1.0-0.12[Ni])×(1.0-0.3[Mo])×(1.0-1.7
[Ti]) }, wherein [C], [Si], [Mn], [P], [S], [Cu], [Ni], [Mo] and [Ti] respectively represent C, Si, Mn, P, S, Cu,
The deposited metal weight percent of Ni, Mo and Ti.
The weatherability alloy index V:1.92 being calculated.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of marine atmosphere corrosion-resisting steel submerged arc flux-cored wire, it is characterised in that: including crust and medicine core, the medicine core packet
Include the component of following parts by weight, 3~20 1~10 part of Fen ﹑ rare earth fluoride of sodium fluoride, 2~20 parts of potassium sodium arc stabilizer, silicomangan
3~20 parts, 2~20 parts of manganese metal, 3~20 parts of magnesium powder, 60~150 parts of nickel powder, 1~5 part of molybdenum powder, 10~30 parts of copper powder, ferrotianium 5
~20 parts, 1~5 part of ferro-boron, 1~5 part of rare earth ferrosilicon, 800~850 parts of iron powder.
2. marine atmosphere corrosion-resisting steel according to claim 1 submerged arc flux-cored wire, it is characterised in that: the medicine core packet
Include the component of following parts by weight, 5~15 2~10 parts of Fen ﹑ rare earth fluoride of sodium fluoride, 5~15 parts of potassium sodium arc stabilizer, silicomangan
5~20 parts, 7~15 parts of manganese metal, 3~15 parts of magnesium powder, 80~150 parts of nickel powder, 2~5 parts of molybdenum powder, 15~30 parts of copper powder, ferrotianium 8
~16 parts, 2~4 parts of ferro-boron, 2~5 parts of rare earth ferrosilicon, 800~820 parts of iron powder.
3. marine atmosphere corrosion-resisting steel according to claim 1 submerged arc flux-cored wire, it is characterised in that: the medicine core weldering
Silk weatherability alloy index V >=1.60,
V=1/ (1.0-0.16 [C]) × (1.05-0.05 [Si]) × (1.04-0.016 [Mn]) × (1.0-0.5 [P]) ×
(1.0+1.9[S])×(1.0-0.10[Cu])×(1.0-0.12[Ni])×(1.0-0.3[Mo])×(1.0-1.7[Ti])},
Wherein [C], [Si], [Mn], [P], [S], [Cu], [Ni], [Mo] and [Ti] respectively represent C, Si, Mn, P, S, Cu, Ni, Mo and
The deposited metal weight percent of Ti.
4. marine atmosphere corrosion-resisting steel according to claim 2 submerged arc flux-cored wire, it is characterised in that: the medicine core packet
Include the component of following parts by weight, 58 parts of Fen ﹑ rare earth fluoride of sodium fluoride, 15 parts of potassium sodium arc stabilizer, 20 parts of silicomangan, manganese metal
5 parts, 5 parts of magnesium powder, 120 parts of nickel powder, 4 parts of molybdenum powder, 25 parts of copper powder, 8 parts of ferrotianium, 4 parts of ferro-boron, 4 parts of rare earth ferrosilicon, 800 parts of iron powder.
5. marine atmosphere corrosion-resisting steel according to claim 1 submerged arc flux-cored wire, it is characterised in that: the medicine core accounts for
The ratio of welding wire total weight is 30~40%.
6. marine atmosphere corrosion-resisting steel according to claim 1 submerged arc flux-cored wire, it is characterised in that: the nickel powder,
Not less than 90 parts, the portion rate of nickel powder and copper powder is 4~6:1 for molybdenum powder, copper powder total number.
7. marine atmosphere corrosion-resisting steel according to claim 1 submerged arc flux-cored wire, it is characterised in that: in the nickel powder
Mass fraction >=99.5% containing nickel, mass fraction >=99.5% containing molybdenum in molybdenum powder, the quality containing copper point in copper powder
Number >=99.5%.
8. described in any item marine atmosphere corrosion-resisting steels are welded with submerged arc flux-cored wire in Steel Bridge according to claim 1~7
In application.
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| CN108907498A (en) * | 2018-08-02 | 2018-11-30 | 天津市永昌焊丝有限公司 | A kind of high tenacity corrosion resistant submerged arc metal powder core solder wire |
| CN109623196B (en) * | 2018-12-27 | 2021-10-15 | 天津市永昌焊丝有限公司 | High-toughness titanium flux-cored wire for weathering resistant steel |
| CN110508971B (en) * | 2019-09-12 | 2021-07-20 | 天津市永昌焊丝有限公司 | High-strength high-toughness metal powder core flux-cored wire |
| CN110560681B (en) * | 2019-09-25 | 2020-09-18 | 华中科技大学 | Metal type powder core wire material, preparation method and application |
| CN111218613A (en) * | 2020-01-08 | 2020-06-02 | 河北华进贸易有限公司 | Marine weather-proof bridge steel plate |
| CN115008066B (en) * | 2022-07-06 | 2024-05-28 | 武汉铁锚焊接材料股份有限公司 | Self-protection flux-cored wire for weathering steel |
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