CN107175429A - A kind of special submerged arc welding flux of resistance to sea atmosphere corrosion - Google Patents
A kind of special submerged arc welding flux of resistance to sea atmosphere corrosion Download PDFInfo
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- CN107175429A CN107175429A CN201710496584.XA CN201710496584A CN107175429A CN 107175429 A CN107175429 A CN 107175429A CN 201710496584 A CN201710496584 A CN 201710496584A CN 107175429 A CN107175429 A CN 107175429A
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- parts
- resistance
- submerged arc
- flux
- arc welding
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Classifications
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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
- B23K35/36—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
- B23K35/3601—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 with inorganic compounds as principal constituents
- B23K35/3602—Carbonates, basic oxides or hydroxides
-
- 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
- B23K35/3601—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 with inorganic compounds as principal constituents
- B23K35/3603—Halide salts
- B23K35/3605—Fluorides
Abstract
The invention provides a kind of resistance to special submerged arc welding flux of sea atmosphere corrosion, the solder flux medicinal powder includes the composition of following parts by weight, 5~8 parts of 3~5 parts of 10~14 parts of calcium oxide, 14~16 parts of thin magnesia, 18~20 parts of alundum (Al2O3) and rutile, 42~50 parts of fluoride and aquamaine stone flour, adhesive is high mould potassium-sodium water glass, and modulus is that 3.0~3.1, potassium sodium ratio is 2:1, the weight ratio of high mould potassium-sodium water glass and solder flux medicinal powder is 1：4~5.The special submerged arc welding flux of resistance to sea atmosphere corrosion of the present invention, the submerged arc welding flux coordinates specific submerged arc flux-cored wire to disclosure satisfy that the postwelding deposited metal coefficient of resistance to sea atmosphere corrosion, and it is small to take off easy slag, welding bead beautiful appearance, postwelding allowance, reduce postwelding manual maintenance, welding available for the anti-corrosion special-purpose steel of large bridge, it is ensured that welding quality.
Description
Technical field
The invention belongs to field of welding material, more particularly, to a kind of resistance to special submerged arc welding flux of sea atmosphere corrosion.
Background technology
The characteristics of science of bridge building has high-tech, high investment, high production, high added value, excessive risk, while also requiring that Gao An
Full property and high reliability.Science of bridge building agent structure mainly uses metal material.It is long in this high corrosion environment of marine environment
The metal material that phase is on active service must take corrosion protection steps.
As Bridges in Our Country construction develops to high speed, heavy duty, large span direction, to ensure the operation safety of bridge and using
Life-span, resistance to sea atmosphere corrosion theory has begun to be applied in bridge construction.Under corrosive environment, two kinds of metals constitute galvanic couple
Pair when, the high person of current potential is as negative electrode, and the low person of current potential is used as anode.The motive force of galvanic corrosion is two kinds of gold in continuous medium
The corrosion potential of category is poor, and when two kinds of larger metals of potential difference constitute galvanic couple pair, the corrosion that anode metal is subject to can be more serious.Must
When must constitute component by different metal, the close material of selection current potential that should try one's best is combined, should avoid selecting big negative electrode in design
When the structural member of primary anode, vital part or smaller part area, it should be made using cathode material.Usual structure member design is sun
Pole-face product is more than cathode area, and during the small negative electrode of big anode, potential difference is controlled less than 100mV；Potential difference during primary anode big negative electrode
It should control in below 10mV, and it is the smaller the better.The current potential of welding material is higher than the current potential of parent metal, typically at least will height
More than 5mV.
At present, it is external to only have the submerged arc welding material that a small number of wlding factories develop such performance but expensive, and it is domestic
Market is temporarily without such product.
The content of the invention
In view of this, the present invention is directed to propose a kind of special submerged arc welding flux of resistance to sea atmosphere corrosion, the submerged arc welding flux coordinates
Proprietary submerged arc flux-cored wire disclosure satisfy that the postwelding deposited metal coefficient of resistance to sea atmosphere corrosion, and de- slag is easy, welding bead shaping
Attractive in appearance, postwelding allowance is small, reduces postwelding manual maintenance, the welding available for the anti-corrosion special-purpose steel of large bridge, it is ensured that
Welding quality.
To reach above-mentioned purpose, the technical proposal of the invention is realized in this way：
A kind of special submerged arc welding flux of resistance to sea atmosphere corrosion, the solder flux medicinal powder includes the composition of following parts by weight, oxygen
5~8 parts of 45~55 parts of compound, 42~50 parts of fluoride and aquamaine stone flour.
It is preferred that, the oxide includes the composition of following parts by weight, 10~14 parts of calcium oxide, thin magnesia 14~16
3~5 parts of part, 18~20 parts of alundum (Al2O3) and rutile.
It is preferred that, the fluoride is calcirm-fluoride.
It is preferred that, the solder flux medicinal powder includes the composition of following parts by weight, 10~12 parts of calcium oxide, thin magnesia 14~16
Part, 18~20 parts of alundum (Al2O3), 3~5 parts of rutile, 42~50 parts of calcirm-fluoride and 5~8 parts of aquamaine stone flour
It is preferred that, described adhesive is high mould potassium-sodium water glass, and modulus is that 3.0~3.1, potassium sodium ratio is 2:1, high mould potassium sodium
The weight ratio of waterglass and solder flux medicinal powder is 1：4~5.
Welded present invention also offers the resistance to special submerged arc welding flux of sea atmosphere corrosion as described above in Oversea bridge with steel
In application.
The formulation analysis of the present invention：
Magnesia is good slag making materials, and it can increase slag gas permeability, and magnesia is basic anhydride, can be with
The viscosity of slag is reduced, is that de- slag is more prone to, it is ensured that the pure property of weld seam.
Calcium oxide effect is to ensure welding arc stablility, and a kind of atmosphere of reduction is formed around electric arc, is prevented in air
The pernicious gas such as vapor, carbon dioxide, nitrogen enter deposited metal, the welding slag of generation is equably covered in weld seam gold
Metal surface, slow down the cooling velocity of weld metal, and obtain good appearance of weld, it is ensured that slag have suitable fusing point,
Density, slag forms slag under the high temperature action of electric arc, occurs a series of chemical metallurgy reactions, removes oxide and sulphur, phosphorus
Deng objectionable impurities.So as to improve the low-temperature impact toughness of weld seam.
Alundum (Al2O3) is the constituent of solder flux, it is characterised in that be derived from calcining alpha-type aluminum oxide, is aoxidized by regulation three
The content and proportioning of two aluminium, can control viscosity, fusing point, the setting temperature of slag, make do not have the residual of skull in its welding bead, and
And the crystal water content and reduction hazardous elements S/P content of reduction solder flux finished product.And then further improve deposited metal
Low-temperature impact toughness.
Rutile belongs to strong slag former in the present invention, can play a part of stable electric arc, in the present invention welding side
Formula is submerged arc welding, it is necessary to which skull auxiliary guarantee welding bead shaping, rutile has higher fusing point, can reconcile slag physical
Can, can rapid condensation, the shaping of auxiliary welding bead and take off slag, it is ensured that the manufacturability of weld seam.
The addition of fluoride is one of technology of the present invention, and fluoride is calcirm-fluoride, and calcirm-fluoride can be with hydrogen knot in weld seam
Synthesize hydrogen fluoride gas to overflow, advantageously reduce the partial pressure of hydrogen in arc atmosphere, so as to play dehydrogenation effect, reduce in weld seam
The content of harmful element hydrogen, reduces the generation of hydrogen induced cracking.
The addition of aquamaine stone flour be the present invention key technology, kyanite volumetric expansion at high temperature, when the temperature decreases,
Volume Changes very little, that is, be the volume-expanding characteristics for having irreversibility conversion to produce.The performance makes solder flux possess good de- slag
Property, in welding, no skull residual, weld seam is pure, it is to avoid upper one of weld seam is sticked because welding bead surface is micro in de- slag
In nonmetallic slag remaining, the deposited metal for being set in down one of weld seam caused by slag.Impact at low ambient temperatures good.Addition
After aquamaine stone flour, deposited metal O/N contents are low, metal slag inclusion nothing but in deposited metal.
Relative to prior art, the resistance to special submerged arc welding flux of sea atmosphere corrosion of the present invention has the advantage that：
The special submerged arc welding flux of resistance to sea atmosphere corrosion of the present invention, does not add alloying element, but can ensure weldering
Impact flexibility and yield tensile ratio, the weld seam processing performance of seam；Addition kyanite can effectively improve the removability of slag of welding bead, and reduction liquidates
The destruction of toughness is hit, the combination property of weld seam is improved；The solder flux of the present invention coordinates Tianjin Golden Bridge Welding Materials Group Co., Ltd life
The model of production：JQ.YDM500NHY welding wire disclosure satisfy that the postwelding deposited metal coefficient of resistance to sea atmosphere corrosion, can meet
Welding under larger parameter, it is ensured that the mechanical property of weld seam complies with the national standard requirements, meets the length under naval air environment
Time uses.
Brief description of the drawings
Fig. 1 is experiment steel corrosion potential comparison diagram under simulated marine atmosphere environment.
Embodiment
It should be noted that in the case where not conflicting, the embodiment in the present invention and the feature in embodiment can phases
Mutually combination.
The solder flux raw material of the present invention are controlled by strict sorting, and each raw material are formulated with strict chemical composition
Scope, and part raw materials particles degree is controlled, it is ensured that the granule strength of solder flux.In process of production, carry out whole
On-line monitoring, medicinal powder is prepared by a certain percentage mixing, and waterglass is added in auxiliary material mixed powder according to 25% part by weight,
With newest spiral solder flux production equipment, mixed powder is made to the solder flux of single-size degree, found through overtesting, the particle of solder flux
Degree has considerable influence to arc stability in welding process, it is ensured that welding uniform granularity can make welding process steady, and then
Excellent appearance of weld is obtained, therefore, solder flux preferred embodiment is used in this solder flux production process.
Mother metal and wlding galvanic corrosion research experiment under simulating atmospheric environment
(1) electrochemical test experiment device
Electrochemical test experiment device uses three-electrode system.Working electrode (i.e. Electrode) is sample to be tested, work area
For 1cm2；Reference electrode is saturated calomel electrode；Auxiliary electrode is platinum gauze.
(2) electrolyte and environmental condition
Test temperature：25℃±1℃.
Experimental condition：Simulated marine atmosphere environment, 0.5%NaCl solution；
(3) instrument and equipment
Equipment is the M398 electrochemical test systems that EG＆G companies of the U.S. produce.
(4) sample
Sample is the 3Ni Weather-resistance bridges steel and wlding that Anshan iron and steel plant is produced, and sample label is as follows：
1#：Mother metal Anshan iron and steel plant 3Ni bridge steels
2#：Submerged arc melts gold SJ101NHY YJM500NHY
Steel machine tooling will be tested into 50mm × 25mm × 5mm sample, following steps processing is carried out to sample：Will examination
Sample carries out bevelling, cleans → cold water flush → deionization to progress thermokalite degreasing → hot water after No. 1000 with liquid honing step by step
Water cleaning → alcohol washes → drying.
3 result of the tests and discussion
Mother metal and using the wlding obtained by present invention process simulated marine atmosphere corrosion potential such as Fig. 1.
Wherein testing the corrosion potential V after steel stabilization is：1# is -0.314；2# is -0.305.Under corrosive environment, two
When planting metal composition galvanic couple pair, the high person of current potential is as negative electrode, and the low person of current potential is used as anode.The motive force of galvanic corrosion is continuous
Medium in two kinds of corrosion of metal potential differences, potential difference it is larger two kinds of metals composition galvanic couple pair when, what anode metal was subject to
Corrosion can be more serious.Usual structure member design is that annode area is more than cathode area, and during the small negative electrode of big anode, potential difference control exists
Less than 100mV；Potential difference should be controlled in below 10mV during primary anode big negative electrode, and the smaller the better.The current potential of welding material will
Current potential than parent metal is high, typically at least wants high more than 5mV.
The corrosion potential numerical value after experiment steel stabilization in this experiment is shown under Fig. 1, simulated marine atmosphere environment, is welded
The current potential of material is higher than mother metal, and 2# and 1# potential difference are 9mV.Welding material can meet requirement.
The present invention is described in detail with reference to embodiment.
Embodiment 1：
(1) various raw-material weight percentage such as following tables in solder flux medicinal powder：(part)
(2) adhesive is high mould potassium-sodium water glass, and modulus is that 3.0-3.1, potassium sodium ratio are 2:1.
(3) submerged arc welding flux is made according to mentioned component to be detected, is provided according to national standard GB/T 12470-2003 standards,
Coordinate the proprietary flux-cored wire of resistance to sea atmosphere corrosion, carry out deposited metal composition analysis, deposited metal Mechanics Performance Testing.
Welding conditions：The source of welding current is DC reverse connection, and thermal weld stress is 145-150 DEG C of temperature between 18-19KJ/cm, road.
1. solder type：Activated rosin flux.
2. solder flux S/P contents：
| Project | S | P |
| Guarantee value | ≤0.035 | ≤0.040 |
| Example value | 0.013 | 0.022 |
3. deposited metal composition
| Project | S | P | O | N |
| Guarantee value | ≤0.015 | ≤0.025 | - | - |
| Example value | 0.011 | 0.020 | 0.066 | 0.0050 |
4. deposited metal mechanical property measured value
| Mechanics project | Rm(N/mm2) | Rel(N/mm2) | A (%) | AKV(J)-60℃ |
| Standard value | ≥490 | ≥400 | ≥22.0 | ≥60 |
| Measured value | 571 | 470 | 25 | 80 |
5. buckling test：The curved back of the body in face is curved qualified.
(4) solder flux of the embodiment coordinates the model of Tianjin Golden Bridge Welding Materials Group Co., Ltd production：
JQ.YDM500NHY welding wire, the postwelding deposited metal coefficient of resistance to sea atmosphere corrosion 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])}
=1.727
Embodiment 2：
(1) various raw-material weight percentage such as following tables in solder flux medicinal powder：(part)
(2) adhesive is high mould potassium-sodium water glass, and modulus is that 3.0-3.1, potassium sodium ratio are 2:1.
(3) submerged arc welding flux is made according to mentioned component to be detected, is provided according to national standard GB/T 12470-2003 standards,
Coordinate the proprietary flux-cored wire of resistance to sea atmosphere corrosion, carry out deposited metal composition analysis, deposited metal Mechanics Performance Testing.
Welding conditions：The source of welding current is DC reverse connection, and thermal weld stress is 145-150 DEG C of temperature between 18-19KJ/cm, road.
1. solder type：Activated rosin flux.
2. solder flux S/P contents：
| Project | S | P |
| Guarantee value | ≤0.035 | ≤0.040 |
| Example value | 0.012 | 0.021 |
3. deposited metal composition
| Project | S | P | O | N |
| Guarantee value | ≤0.015 | ≤0.025 | - | - |
| Example value | 0.010 | 0.019 | 0.058 | 0.0045 |
4. deposited metal mechanical property measured value
5. buckling test：The curved back of the body in face is curved qualified.
(4) solder flux of the embodiment coordinates the model of Tianjin Golden Bridge Welding Materials Group Co., Ltd production：
JQ.YDM500NHY welding wire, the postwelding deposited metal coefficient of resistance to sea atmosphere corrosion V：
| Project | C | Si | Mn | P | S | Cu | Ni | Mo | Ti |
| Example value | 0.038 | 0.16 | 0.63 | 0.021 | 0.012 | 0.43 | 3.36 | 0.084 | 0.021 |
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])}
=1.725
Embodiment 3：
(1) various raw-material weight percentage such as following tables in solder flux medicinal powder：(part)
(2) adhesive is high mould potassium-sodium water glass, and modulus is that 3.0-3.1, potassium sodium ratio are 2:1.
(3) submerged arc welding flux is made according to mentioned component to be detected, is provided according to national standard GB/T 12470-2003 standards,
Coordinate the proprietary flux-cored wire of resistance to sea atmosphere corrosion, carry out deposited metal composition analysis, deposited metal Mechanics Performance Testing.
Welding conditions：The source of welding current is DC reverse connection, and thermal weld stress is 145-150 DEG C of temperature between 18-19KJ/cm, road.
1. solder type：Activated rosin flux.
2. solder flux S/P contents：
| Project | S | P |
| Guarantee value | ≤0.035 | ≤0.040 |
| Example value | 0.014 | 0.022 |
3. deposited metal composition
| Project | S | S | O | N |
| Guarantee value | ≤0.015 | ≤0.015 | - | - |
| Example value | 0.012 | 0.012 | 0.056 | 0.0040 |
4. deposited metal mechanical property measured value
| Mechanics project | Rm(N/mm2) | Rel(N/mm2) | A (%) | AKV(J)-60℃ |
| Standard value | ≥490 | ≥400 | ≥22.0 | ≥60 |
| Measured value | 560 | 468 | 24.5 | 107 |
5. buckling test：The curved back of the body in face is curved qualified.
(4) solder flux of the embodiment coordinates the model of Tianjin Golden Bridge Welding Materials Group Co., Ltd production：
JQ.YDM500NHY welding wire, the postwelding deposited metal coefficient of resistance to sea atmosphere corrosion V：
| Project | C | Si | Mn | P | S | Cu | Ni | Mo | Ti |
| Example value | 0.03 | 0.11 | 0.65 | 0.012 | 0.012 | 0.46 | 3.38 | 0.088 | 0.018 |
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])}
=1.717
By above-mentioned Welding experiment, the combination property of the present invention is verified, there is following result：
(1) solder flux of the present invention is special sintered flux, can effectively be improved by alloy transfer into weld seam
The pure property of weld seam, the welding bead removability of slag, it is ensured that weld seam combination property.
(2) solder flux of the present invention disclosure satisfy that large bridge submerged arc welding demand, with very high tensile strength and impact
Toughness and the coefficient of resistance to sea atmosphere corrosion.
Conclusion：The special submerged arc welding flux of resistance to sea atmosphere corrosion of the present invention, welding performance is excellent, and appearance of weld is attractive in appearance, its
Weld seam chemical composition, mechanical property can meet the welding application of offshore long-span-bridge, it is ensured that welding quality.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God is with principle, and any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (6)
1. a kind of special submerged arc welding flux of resistance to sea atmosphere corrosion, it is characterised in that：The solder flux medicinal powder includes following parts by weight
Composition, 5~8 parts of 45~55 parts of oxide, 42~50 parts of fluoride and aquamaine stone flour.
2. the special submerged arc welding flux of resistance to sea atmosphere corrosion according to claim 1, it is characterised in that：The oxide includes
The composition of following parts by weight, 10~14 parts of calcium oxide, 14~16 parts of thin magnesia, 18~20 parts of alundum (Al2O3) and rutile 3
~5 parts.
3. the special submerged arc welding flux of resistance to sea atmosphere corrosion according to claim 2, it is characterised in that：The fluoride is fluorine
Change calcium.
4. the special submerged arc welding flux of resistance to sea atmosphere corrosion according to claim 3, it is characterised in that：The solder flux medicinal powder package
Include the composition of following parts by weight, 10~12 parts of calcium oxide, 14~16 parts of thin magnesia, 18~20 parts of alundum (Al2O3), rutile 3
5~8 parts of~5 parts, 42~50 parts of calcirm-fluoride and aquamaine stone flour.
5. the special submerged arc welding flux of resistance to sea atmosphere corrosion according to claim 2, it is characterised in that：Also include adhesive,
Described adhesive is high mould potassium-sodium water glass, and modulus is that 3.0-3.1, potassium sodium ratio are 2:1, high mould potassium-sodium water glass and solder flux medicinal powder
Weight ratio be 1：4~5.
6. a kind of special submerged arc welding flux of resistance to sea atmosphere corrosion as described in any one of Claims 1 to 5 is in Oversea bridge steel
Application in welding.
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| CN201710496584.XA CN107175429B (en) | 2017-06-26 | 2017-06-26 | A kind of dedicated submerged arc welding flux of resistance to sea atmosphere corrosion |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710496584.XA CN107175429B (en) | 2017-06-26 | 2017-06-26 | A kind of dedicated submerged arc welding flux of resistance to sea atmosphere corrosion |
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| CN107175429A true CN107175429A (en) | 2017-09-19 |
| CN107175429B CN107175429B (en) | 2019-06-14 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108907508A (en) * | 2018-09-07 | 2018-11-30 | 南京工程学院 | A kind of preparation method for the slag-free flux-cored wire protected using the double-deck gas |
| CN113770591A (en) * | 2021-10-13 | 2021-12-10 | 北京金威焊材有限公司 | Flux-cored wire for welding stainless steel used in high-temperature environment |
| CN115890063A (en) * | 2022-12-30 | 2023-04-04 | 四川西冶新材料股份有限公司 | Welding flux for submerged arc welding of P92 steel |
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| EP0051424A1 (en) * | 1980-10-30 | 1982-05-12 | The Lincoln Electric Company | Granular flux for pipe welding |
| CN1096237A (en) * | 1993-06-11 | 1994-12-14 | 江苏宇宙焊接材料集团公司 | The carbon steel coating that contains rich-magnesium clay cyanite |
| CN105081615A (en) * | 2015-09-11 | 2015-11-25 | 武汉铁锚焊接材料股份有限公司 | High tenacity and low hydrogen type agglomerated flux for ocean engineering and preparation method thereof |
| CN105269179A (en) * | 2015-10-21 | 2016-01-27 | 锦州澳林康天鹅焊材有限公司 | Sintered flux for surfacing with band-electrode of submerged-arc welding |
| CN105945453A (en) * | 2016-07-21 | 2016-09-21 | 武汉天高熔接股份有限公司 | Sintered flux for submerged-arc welding of steel structure U-shaped rib plate |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0051424A1 (en) * | 1980-10-30 | 1982-05-12 | The Lincoln Electric Company | Granular flux for pipe welding |
| CN1096237A (en) * | 1993-06-11 | 1994-12-14 | 江苏宇宙焊接材料集团公司 | The carbon steel coating that contains rich-magnesium clay cyanite |
| CN105081615A (en) * | 2015-09-11 | 2015-11-25 | 武汉铁锚焊接材料股份有限公司 | High tenacity and low hydrogen type agglomerated flux for ocean engineering and preparation method thereof |
| CN105269179A (en) * | 2015-10-21 | 2016-01-27 | 锦州澳林康天鹅焊材有限公司 | Sintered flux for surfacing with band-electrode of submerged-arc welding |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108907508A (en) * | 2018-09-07 | 2018-11-30 | 南京工程学院 | A kind of preparation method for the slag-free flux-cored wire protected using the double-deck gas |
| CN113770591A (en) * | 2021-10-13 | 2021-12-10 | 北京金威焊材有限公司 | Flux-cored wire for welding stainless steel used in high-temperature environment |
| CN113770591B (en) * | 2021-10-13 | 2023-01-31 | 北京金威焊材有限公司 | Flux-cored wire for welding stainless steel used in high-temperature environment |
| CN115890063A (en) * | 2022-12-30 | 2023-04-04 | 四川西冶新材料股份有限公司 | Welding flux for submerged arc welding of P92 steel |
| CN115890063B (en) * | 2022-12-30 | 2024-02-09 | 四川西冶新材料股份有限公司 | Flux for submerged arc welding of P92 steel |
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