CN102922175B - Dedicated submerged-arc welding flux for petroleum pipeline - Google Patents
Dedicated submerged-arc welding flux for petroleum pipeline Download PDFInfo
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- CN102922175B CN102922175B CN201210479853.9A CN201210479853A CN102922175B CN 102922175 B CN102922175 B CN 102922175B CN 201210479853 A CN201210479853 A CN 201210479853A CN 102922175 B CN102922175 B CN 102922175B
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Abstract
The invention discloses dedicated submerged-arc welding flux for a petroleum pipeline, which comprises welding flux and adhesive, wherein the welding flux comprises the following materials by weight percent: 15 to 20 percent of fluoride compound, 24 to 32 percent of aluminum sesquioxide compound, 12 to 26 percent of basic oxide compound, 0.1 to 1 percent of silicon dioxide, 0.1 to 1 percent of barium titanate, 26 to 33 percent of manganese mineral powder, 5 to 10 percent of ferromanganese, 0.1 to 4 percent of metallic nickel, 5 to 12 percent of ferrosilicon and 0.1 to 5 percent of ferroboron. Through addition of various trace alloying elements, the low-temperature impact ductility of the dedicated submerged-arc welding flux can be improved remarkably; as various fluorides capable of reducing the contents of hazardous elements such as sulfur, phosphorus and hydrogen are added, the comprehensive performance of a weld joint is improved; and as the contents of manganese and silicone are higher, the requirements on welding with larger parameters can be met, manganese and silicone which are lost through burning during a welding process can be effectively supplemented, and the mechanical property of the weld joint is guaranteed.
Description
Technical field
The invention belongs to technical field of welding materials, especially relate to the special submerged arc welding flux of a kind of petroleum pipeline.
Background technology
During 12, pipe-line construction goes into operation in a large number, PetroChina Company Limited. is by construction 20,000 kilometers of petroleum pipelines, China Petrochemical Industry by construction 1.4 ten thousand kilometers of pipelines, CNOOC by construction 8000 kilometers of pipelines, welded high-strength level pipeline pipeline steel, in the urgent need to a large amount of special welding materials, to the welding material requirement that also corresponding proposition is more and more higher, not only integrated performance index requires higher, and will meet high-speed and high-efficiency welding demand.In article " oil and gas pipeline General Survey To The Developments of Welding Materials and suggestion " (" modern welding " o. 11th in 2007), specify that the present situation of pipe line steel welding material, point out that the development of domestic welding material is relatively backward, and the pipe line steel welding material of application at present also needs import mostly.At present, only have the minority such as Lincoln, refreshing steel wlding factory to develop the welding material of this type of performance abroad, but price is extremely expensive, and domesticly still there is no this type of matured product at present.
Summary of the invention
The technical problem to be solved in the present invention be to provide one can efficiently and high-speed welding, de-slag easily, little, the special submerged arc welding flux of the guaranteed petroleum pipeline of welding quality of welding bead beautiful appearance, postwelding allowance, be particularly useful for the welding of long distance pipeline.
Technical scheme of the present invention is the special submerged arc welding flux of a kind of petroleum pipeline, comprises solder flux medicinal powder and adhesive, and solder flux medicinal powder comprises the component of following percentage by weight:
The percentage by weight sum of each component is 100% above, wherein MnO content >=62% in manganese mineral powder, Si content >=72% in Antaciron, B content >=15% in ferro-boron.
Preferably, described fluoride mixture is the mixture of two kinds of fluorides, and described alundum (Al2O3) mixture is the mixture of three kinds of different phase structure alundum (Al2O3)s, and described basic anhydride mixture is the mixture of two kinds of basic anhydride.
Preferably, described fluoride is made up of calcirm-fluoride and barium fluoride.
Preferably, described alchlor is made up of bauxite, calcining alpha-type aluminum oxide, white fused alumina.
Preferably, described basic anhydride are magnesia and calcium oxide.
Preferably, described adhesive is high mould potassium-sodium water glass, and modulus is 3.0-3.1, potassium sodium mass ratio is 2:1, and the part by weight of high mould potassium-sodium water glass and solder flux medicinal powder is 25%.
Formulation analysis of the present invention:
The alundum (Al2O3) of three kinds of different phase structures is main constituents of solder flux, preferred bauxite, calcining alpha-type aluminum oxide, white fused alumina, the alundum (Al2O3) of different shape has different fusing points and setting temperature, by regulating content and the proportioning of three kinds of alundum (Al2O3)s, the viscosity of slag, fusing point, setting temperature can be controlled.In the present invention, its mass percent accounting for solder flux is 24-32%.
The interpolation of two kinds of fluorides is key technologies of the present invention, two kinds of fluoride preferred fluorinated calcium and barium fluoride, calcirm-fluoride can be combined into hydrogen fluoride gas with hydrogen in weld seam and overflow, be conducive to the dividing potential drop reducing hydrogen in arc atmosphere, thus play dehydrogenation effect, reduce the content of harmful element hydrogen in weld seam, reduce the generation of hydrogen induced cracking.Barium fluoride has strong shoddye effect, can increase the mobility in molten bath, and ensure that weld seam is shaped attractive in appearance under large parameter, its content needs suitably, very little then shoddye scarce capacity, easily causes arc stability to decline too much.In the present invention, the mass percent that two kinds of fluorides account for solder flux is 15-20%.
Manganese mineral powder belongs to innovative point in the present invention, and its Main Function regulates viscosity coefficient of dross, interpolation alloying element and desulfurization.The main matter of manganese mineral powder is manganese oxide, can with Antaciron generation reduction reaction, to weld metal transition manganese element.Because pipeline solder flux uses when welding parameter is larger, the scaling loss of manganese element is comparatively serious, and manganese oxide both can suppress the oxidation reaction of manganese element to carry out, and played a protective role, and simultaneously with harmful element reaction of Salmon-Saxl, was combined into sulfide and entered slag.In the present invention, manganese mineral powder accounts for the mass percent of solder flux is 26-33%.
Two kinds of basic anhydride are magnesia and calcium oxide, effect ensures welding arc stablility, a kind of atmosphere of reduction is caused around electric arc, prevent the steam in air, carbon dioxide, the pernicious gases such as carbon monoxide enter deposited metal, the welding slag generated covers weld face equably, slow down the cooling velocity of weld metal, and obtain good appearance of weld, ensure that slag has suitable fusing point, viscosity, density, coating forms slag under the high temperature action of electric arc, there is the reaction of a series of chemical metallurgy, removing oxide and sulphur, the objectionable impurities such as phosphorus.In the present invention, its mass percent accounting for solder flux is 12-26%.
Silica, mainly as slag former, increases the high temperature viscosity of slag, regulates angle of wetting, improves appearance of weld.In the present invention, its mass percent accounting for solder flux is 0.1-1%.
Barium titanate belongs to key technology in the present invention, and steel for pipe material, for ensureing its combination property, adds titanium elements and carries out crystal grain thinning, add a small amount of barium titanate in solder flux, can suppressing the oxidation of titanium elements when welding, ensureing the content of titanium elements in weld seam.In the present invention, its mass percent accounting for solder flux is 0.1-1%.
Manganeisen is good deoxidier and desulfurizing agent, can significantly improve the intensity of weld seam, improves the toughness of weld seam, but content is unsuitable too high, otherwise easily produces Weld pipe mill crackle.In the present invention, its mass percent accounting for solder flux is 5-10%.
Metallic nickel is an innovative technology of the present invention, and because petroleum pipeline is required to meet high tenacity under lower temperature, and a small amount of metallic nickel can play the effect obviously improving welding seam toughness, can strengthen intergranular structure.In the present invention, its mass percent accounting for solder flux is 0.1-4%.
Antaciron is very crucial in the present invention, combined deoxidation is carried out with manganese metal, carry out reaction with manganese mineral powder and generate manganese metal, supplement the manganese element in weld seam, can add element silicon in weld seam, manganese element silicon can ensure the intensity of weld seam, but content can not be too high simultaneously, too high, easily cause weld strength too high, impact toughness decreased.In the present invention, its mass percent accounting for solder flux is 5-12%.
Ferro-boron is innovative point of the present invention, and a small amount of rare earth element boron can crystal grain thinning further, and metallographic structure forms acicular ferrite, can meet the requirement of pipeline welding material to low-temperature flexibility.In the present invention, its mass percent accounting for solder flux is 0.1-5%.
Advantage of the present invention and effect: the special submerged arc welding flux of pipeline of the present invention adds lot of trace alloying element, by crystal grain thinning, improves intergranular structure structure, can significantly improve low-temperature impact toughness.Add multiple fluoride, content that oxide can reduce harmful element sulphur, phosphorus, hydrogen, improve the combination property of weld seam, in addition, manganese silicone content of the present invention is higher, the welding under larger parameter can be met, effectively can supplement the manganese silicon scaling loss amount in welding process, ensure the mechanical property of weld seam.
Detailed description of the invention
Solder flux raw material of the present invention, through strict control of selecting materials, formulate strict control criterion to each raw material.In process of production, carry out omnidistance on-line monitoring, medicinal powder prepared mixing by a certain percentage, by waterglass according to 25% part by weight add in solder flux medicinal powder, with up-to-date spiral solder flux production equipment, mixed powder is made solder flux and dries.In order to understand the present invention, below by specific embodiment, the invention will be further described.
Embodiment one
(1) in solder flux medicinal powder various raw-material weight percentage as following table: (%)
| Calcirm-fluoride | Barium fluoride | Bauxite | Calcining alpha-type aluminum oxide | White fused alumina | Magnesia | Calcium oxide |
| 8 | 8 | 7 | 10 | 9 | 8 | 5 |
| Silica | Barium titanate | Manganese mineral powder | Manganeisen | Metallic nickel | Antaciron | Ferro-boron |
| 0.8 | 0.2 | 28 | 6 | 2 | 7 | 1 |
Wherein MnO content >=62% in manganese mineral powder, Si content >=72% in Antaciron, B content >=15% in ferro-boron
(2) adhesive is high mould potassium-sodium water glass, and modulus is 3.0-3.1, potassium sodium ratio is 2:1.
(3) make submerged arc welding flux according to mentioned component to detect, according to GB GB/T 12470-2003 standard regulation, coordinate petroleum pipeline welding wire for submerged-arc welding H08MnMoTiB, carry out deposited metal composition analysis, deposited metal Mechanics Performance Testing.Welding conditions: the source of welding current is DC reverse connection, weld heat input is temperature 145-150 DEG C between 18-19KJ/cm, road.
1. deposited metal composition percentage by weight measured value: (%)
| Chemical element | C | S | Mn | Si | P | Ni | Mo | Ti | B |
| Measured value | 0.045 | 0.003 | 1.65 | 0.71 | 0.016 | 0.75 | 0.35 | 0.014 | 0.0038 |
2. deposited metal mechanical property measured value
Embodiment two
(1) in solder flux medicinal powder various raw-material weight percentage as following table: (%)
| Calcirm-fluoride | Barium fluoride | Bauxite | Calcining alpha-type aluminum oxide | White fused alumina | Magnesia | Calcium oxide |
| 7 | 9 | 7 | 9 | 10 | 8 | 5 |
| Silica | Barium titanate | Manganese mineral powder | Manganeisen | Metallic nickel | Antaciron | Ferro-boron |
| 0.8 | 0.2 | 28 | 6 | 2 | 7 | 1 |
Wherein MnO content >=62% in manganese mineral powder, Si content >=72% in Antaciron, B content >=15% in ferro-boron
(2) adhesive is high mould potassium-sodium water glass, and modulus is 3.0-3.1, potassium sodium ratio is 2:1.
(3) make submerged arc welding flux according to mentioned component to detect, according to GB GB/T 12470-2003 standard regulation, coordinate petroleum pipeline welding wire for submerged-arc welding H08MnMoTiB, carry out deposited metal composition analysis, deposited metal Mechanics Performance Testing.Welding conditions: the source of welding current is DC reverse connection, weld heat input is temperature 145-150 DEG C between 18-19KJ/cm, road.
1. deposited metal composition percentage by weight measured value: (%)
| Chemical element | C | S | Mn | Si | P | Ni | Mo | Ti | B |
| Measured value | 0.044 | 0.004 | 1.66 | 0.70 | 0.018 | 0.73 | 0.34 | 0.014 | 0.0037 |
2. deposited metal mechanical property measured value
Embodiment three
(1) in solder flux medicinal powder various raw-material weight percentage as following table: (%)
| Calcirm-fluoride | Barium fluoride | Bauxite | Calcining alpha-type aluminum oxide | White fused alumina | Magnesia | Calcium oxide |
| 8 | 8 | 7 | 10 | 9 | 6 | 7 |
| Silica | Barium titanate | Manganese mineral powder | Manganeisen | Metallic nickel | Antaciron | Ferro-boron |
| 1 | 0.2 | 28 | 6 | 2 | 7 | 0.8 |
Wherein MnO content >=62% in manganese mineral powder, Si content >=72% in Antaciron, B content >=15% in ferro-boron
(2) adhesive is high mould potassium-sodium water glass, and modulus is 3.0-3.1, potassium sodium ratio is 2:1.
(3) make submerged arc welding flux according to mentioned component to detect, according to GB GB/T 12470-2003 standard regulation, coordinate petroleum pipeline welding wire for submerged-arc welding H08MnMoTiB, carry out deposited metal composition analysis, deposited metal Mechanics Performance Testing.Welding conditions: the source of welding current is DC reverse connection, weld heat input is temperature 145-150 DEG C between 18-19KJ/cm, road.
1. deposited metal composition percentage by weight measured value: (%)
| Chemical element | C | S | Mn | Si | P | Ni | Mo | Ti | B |
| Measured value | 0.047 | 0.003 | 1.67 | 0.70 | 0.015 | 0.75 | 0.35 | 0.014 | 0.0035 |
2. deposited metal mechanical property measured value
Embodiment four
(1) in solder flux medicinal powder various raw-material weight percentage as following table: (%)
| Calcirm-fluoride | Barium fluoride | Bauxite | Calcining alpha-type aluminum oxide | White fused alumina | Magnesia | Calcium oxide |
| 8 | 8 | 7 | 10 | 9 | 8 | 5 |
| Silica | Barium titanate | Manganese mineral powder | Manganeisen | Metallic nickel | Antaciron | Ferro-boron |
| 0.6 | 0.4 | 26 | 6 | 2 | 9 | 1 |
Wherein MnO content >=62% in manganese mineral powder, Si content >=72% in Antaciron, B content >=15% in ferro-boron
(2) adhesive is high mould potassium-sodium water glass, and modulus is 3.0-3.1, potassium sodium ratio is 2:1.
(3) make submerged arc welding flux according to mentioned component to detect, according to GB GB/T 12470-2003 standard regulation, coordinate petroleum pipeline welding wire for submerged-arc welding H08MnMoTiB, carry out deposited metal composition analysis, deposited metal Mechanics Performance Testing.Welding conditions: the source of welding current is DC reverse connection, weld heat input is temperature 145-150 DEG C between 18-19KJ/cm, road.
1. deposited metal composition percentage by weight measured value: (%)
| Chemical element | C | S | Mn | Si | P | Ni | Mo | Ti | B |
| Measured value | 0.048 | 0.003 | 1.61 | 0.86 | 0.016 | 0.77 | 0.34 | 0.012 | 0.0037 |
2. deposited metal mechanical property measured value
Embodiment five
(1) in solder flux medicinal powder various raw-material weight percentage as following table: (%)
| Calcirm-fluoride | Barium fluoride | Bauxite | Calcining alpha-type aluminum oxide | White fused alumina | Magnesia | Calcium oxide |
| 7 | 9 | 9 | 10 | 7 | 8 | 5 |
| Silica | Barium titanate | Manganese mineral powder | Manganeisen | Metallic nickel | Antaciron | Ferro-boron |
| 0.8 | 0.2 | 30 | 5 | 2 | 6 | 1 |
Wherein MnO content >=62% in manganese mineral powder, Si content >=72% in Antaciron, B content >=15% in ferro-boron
(2) adhesive is high mould potassium-sodium water glass, and modulus is 3.0-3.1, potassium sodium ratio is 2:1.
(3) make submerged arc welding flux according to mentioned component to detect, according to GB GB/T 12470-2003 standard regulation, coordinate petroleum pipeline welding wire for submerged-arc welding H08MnMoTiB, carry out deposited metal composition analysis, deposited metal Mechanics Performance Testing.Welding conditions: the source of welding current is DC reverse connection, weld heat input is temperature 145-150 DEG C between 18-19KJ/cm, road.
1. deposited metal composition percentage by weight measured value: (%)
| Chemical element | C | S | Mn | Si | P | Ni | Mo | Ti | B |
| Measured value | 0.047 | 0.004 | 1.62 | 0.75 | 0.014 | 0.73 | 0.33 | 0.015 | 0.0039 |
2. deposited metal mechanical property measured value
Embodiment six
(1) in solder flux medicinal powder various raw-material weight percentage as following table: (%)
| Calcirm-fluoride | Barium fluoride | Bauxite | Calcining alpha-type aluminum oxide | White fused alumina | Magnesia | Calcium oxide |
| 8 | 8 | 9 | 7 | 9 | 8 | 5 |
| Silica | Barium titanate | Manganese mineral powder | Manganeisen | Metallic nickel | Antaciron | Ferro-boron |
| 0.8 | 0.2 | 31 | 5.5 | 1.5 | 6 | 1 |
Wherein MnO content >=62% in manganese mineral powder, Si content >=72% in Antaciron, B content >=15% in ferro-boron
(2) adhesive is high mould potassium-sodium water glass, and modulus is 3.0-3.1, potassium sodium ratio is 2:1.
(3) make submerged arc welding flux according to mentioned component to detect, according to GB GB/T 12470-2003 standard regulation, coordinate petroleum pipeline welding wire for submerged-arc welding H08MnMoTiB, carry out deposited metal composition analysis, deposited metal Mechanics Performance Testing.Welding conditions: the source of welding current is DC reverse connection, weld heat input is temperature 145-150 DEG C between 18-19KJ/cm, road.
1. deposited metal composition percentage by weight measured value: (%)
| Chemical element | C | S | Mn | Si | P | Ni | Mo | Ti | B |
| Measured value | 0.046 | 0.005 | 1.68 | 0.69 | 0.014 | 0.70 | 0.34 | 0.015 | 0.0035 |
2. deposited metal mechanical property measured value
By above-mentioned soldering test, verify combination property of the present invention, obtain following result:
1. solder flux of the present invention is in welding process, and de-slag is easy, welding bead beautiful appearance, welds, has very excellent processing performance, can meet the welding requirements of efficient high-speed under large welding parameter condition.
2. solder flux of the present invention is sintered flux, by alloy transfer in weld seam, can effectively can supplement the alloying element scaling loss in welding process, ensures combination property.
3. solder flux of the present invention can meet high intensity levels petroleum pipeline welding demand, has very high tensile strength and low-temperature impact toughness.
In sum, the special submerged arc welding flux of petroleum pipeline of the present invention, welding performance is excellent, and appearance of weld is attractive in appearance, and its weld seam chemical composition, mechanical property all can meet the welding application of petroleum pipeline, can ensure welding quality.
The present invention is not limited to above-mentioned preferred forms, anyone other any or akin products identical with the present invention drawn under enlightenment of the present invention, all drops within protection scope of the present invention.
Claims (6)
1. the special submerged arc welding flux of petroleum pipeline, comprises solder flux medicinal powder and adhesive, it is characterized in that, solder flux medicinal powder comprises the component of following percentage by weight:
The percentage by weight sum of each component is 100% above, wherein MnO content >=62% in manganese mineral powder, Si content >=72% in Antaciron, B content >=15% in ferro-boron.
2. the special submerged arc welding flux of petroleum pipeline as claimed in claim 1, it is characterized in that: described fluoride mixture is the mixture of two kinds of fluorides, described alundum (Al2O3) mixture is the mixture of three kinds of different phase structure alundum (Al2O3)s, and described basic anhydride mixture is the mixture of two kinds of basic anhydride.
3. the special submerged arc welding flux of petroleum pipeline as claimed in claim 1 or 2, is characterized in that: described fluoride is made up of calcirm-fluoride and barium fluoride.
4. the special submerged arc welding flux of petroleum pipeline as claimed in claim 1 or 2, is characterized in that: described alchlor is made up of bauxite, calcining alpha-type aluminum oxide, white fused alumina.
5. the special submerged arc welding flux of petroleum pipeline as claimed in claim 1 or 2, is characterized in that: described basic anhydride are magnesia and calcium oxide.
6. the special submerged arc welding flux of petroleum pipeline as claimed in claim 1, it is characterized in that: described adhesive is high mould potassium-sodium water glass, modulus is 3.0-3.1, potassium sodium mass ratio is 2:1, and the part by weight of high mould potassium-sodium water glass and solder flux medicinal powder is 25%.
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104816106B (en) * | 2015-05-22 | 2017-07-28 | 天津市永昌焊丝有限公司 | A kind of special submerged-arc horizontal solder flux of pressure-bearing storage tank |
| CN104827209B (en) * | 2015-05-28 | 2016-08-24 | 新昌县康泓机械科技有限公司 | A kind of preparation method of petroleum pipeline submerged arc welding flux |
| CN106493382A (en) * | 2016-10-07 | 2017-03-15 | 常州市鼎升环保科技有限公司 | A kind of preparation method without soldering powder |
| CN108015453A (en) * | 2017-12-05 | 2018-05-11 | 河南科技大学 | A kind of nickel-base alloy submerged-arc welding sintered flux and preparation method and application |
| CN109530975B (en) * | 2018-12-29 | 2020-11-27 | 天津市永昌焊丝有限公司 | High-alkali high-strength high-toughness submerged arc sintered flux and preparation method and application thereof |
| CN110052739B (en) * | 2019-05-15 | 2022-06-28 | 天津市永昌焊丝有限公司 | High-strength high-toughness transverse submerged arc welding flux and preparation method and application thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4221611A (en) * | 1978-07-17 | 1980-09-09 | Nippon Steel Corporation | Non-fused flux composition for submerged-arc welding |
| CN1415454A (en) * | 2002-11-14 | 2003-05-07 | 燕山大学 | Sintered flux utilized in automatic submerged arc welding with multiple wires in high speed |
| JP2005125345A (en) * | 2003-10-22 | 2005-05-19 | Kobe Steel Ltd | Fusible flux for submerged arc welding |
| CN100999043A (en) * | 2007-01-05 | 2007-07-18 | 西安理工大学 | Submerged arc welding flux material used for high grade pipe line steel |
| CN101549445A (en) * | 2009-05-08 | 2009-10-07 | 西安理工大学 | Submerged arc welding flux material for X80 pipeline steel and preparing method thereof |
| CN102387890A (en) * | 2009-04-10 | 2012-03-21 | 新日本制铁株式会社 | Highly basic fused flux for submerged arc welding |
-
2012
- 2012-11-22 CN CN201210479853.9A patent/CN102922175B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4221611A (en) * | 1978-07-17 | 1980-09-09 | Nippon Steel Corporation | Non-fused flux composition for submerged-arc welding |
| CN1415454A (en) * | 2002-11-14 | 2003-05-07 | 燕山大学 | Sintered flux utilized in automatic submerged arc welding with multiple wires in high speed |
| JP2005125345A (en) * | 2003-10-22 | 2005-05-19 | Kobe Steel Ltd | Fusible flux for submerged arc welding |
| CN100999043A (en) * | 2007-01-05 | 2007-07-18 | 西安理工大学 | Submerged arc welding flux material used for high grade pipe line steel |
| CN102387890A (en) * | 2009-04-10 | 2012-03-21 | 新日本制铁株式会社 | Highly basic fused flux for submerged arc welding |
| CN101549445A (en) * | 2009-05-08 | 2009-10-07 | 西安理工大学 | Submerged arc welding flux material for X80 pipeline steel and preparing method thereof |
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