CN106736018A - A kind of siderotil soil type flux-cored wire - Google Patents
A kind of siderotil soil type flux-cored wire Download PDFInfo
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- CN106736018A CN106736018A CN201611132621.0A CN201611132621A CN106736018A CN 106736018 A CN106736018 A CN 106736018A CN 201611132621 A CN201611132621 A CN 201611132621A CN 106736018 A CN106736018 A CN 106736018A
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- siderotil
- powder
- iron powder
- cored wire
- red bauxite
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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
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
- B23K35/3053—Fe as the principal constituent
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Nonmetallic Welding Materials (AREA)
Abstract
Include with the outer intracutaneous medicine core of mild steel, medicine core raw materials by weight is filled in the invention discloses a kind of siderotil soil type flux-cored wire, including mild steel crust：Roasting red bauxite 10~20%, calcium ferrite 3~8%, rutile 0~5%, fluoride 3~5%, magnesium powder 1~5%, ferromanganese powder 1~3%, manganese silica flour 1~3%, zircon sand 2~4%, vanadium iron powder 1~3%, molybdenum-iron powder 1~2%, balance of iron powder.The present invention is calcined red bauxite and instead of part rutile as slag former with calcium ferrite, reduces production cost, improves the comprehensive mechanical property of weld metal.
Description
Technical field
The present invention relates to medicine core technical field, more particularly to a kind of siderotil soil type flux-cored wire
Background technology
Flux-cored wire is a kind of novel welding material for developing rapidly in recent years, its have welding quality it is good, production
Efficiency high, the low series of advantages of comprehensive welding cost, in shipbuilding, machinery, petrochemical industry, metallurgy, military project, manufacture of steel structure and engineering
Extensive use in construction.The medicine core formula of presently commercially available flux-cored wire is based on rutile, although rutile slag system medicine core is welded
Silk has the advantages that forming, wear-resisting, easily de- slag and splashes small, but because rutile price is high, increases production cost.
So, developing one kind can partly or entirely substitute rutile, while the raw material of rutile slag system flux-cored wire advantage is kept, it is right
Developed in a healthy way in the overall stabilization of the industry of flux-cored wire and play very important status.
The content of the invention
The present invention proposes a kind of siderotil soil type flux-cored wire, using roasting red bauxite as main slag former, instead of
Partial rutile, reduces production cost, and the present invention has good welding performance, and tensile strength is more than 500MPa, extends
Rate has exceeded 20%, and -40 DEG C of ballistic works are more than 85J, with fine impact flexibility, meet the use requirement of flux-cored wire.
A kind of siderotil soil type flux-cored wire proposed by the present invention, including mild steel crust and it is filled in the outer intracutaneous medicine of mild steel
Core, medicine core raw materials by weight includes：Roasting red bauxite 10~20%, calcium ferrite 3~8%, rutile 0~5%, fluorination
Thing 3~5%, magnesium powder 1~5%, ferromanganese powder 1~3%, manganese silica flour 1~3%, zircon sand 2~4%, vanadium iron powder 1~3%, molybdenum-iron
Powder 1~2%, balance of iron powder.
Preferably, percentage by weight of the roasting red bauxite in medicine core be 10%, 10.5%, 11%, 11.5%, 12%,
12.5%th, 13%, 13.5%, 14%, 14.5%, 15%, 15.5%, 16%, 16.5%, 17%, 17.5%, 18%,
18.5%th, 19%, 19.5%, 20%, percentage by weight of the calcium ferrite in medicine core be 3%, 3.5%, 4%, 4.5%, 5%,
5.5%th, 6%, 6.5%, 7%, 7.5%, 8%, percentage by weight of the rutile in medicine core be 0%, 0.5%, 1%,
1.5%th, 2%, 2.5%, 3%, 3.5%, 4%, 4.5%, 5%, percentage by weight of the fluoride in medicine core be 3%,
3.1%th, 3.2%, 3.3%, 3.4%, 3.5%, 3.6%, 3.7%, 3.8%, 3.9%, 4%, 4.1%, 4.2%, 4.3%,
4.4%th, 4.5%, 4.6%, 4.7%, 4.8%, 4.9%, 5%, percentage by weight of the magnesium powder in medicine core be 1%, 1.5%,
2%th, 2.5%, 3%, 3.5%, 4%, 4.5%, 5%, percentage by weight of the ferromanganese powder in medicine core be 1%, 1.2%,
1.4%th, 1.6%, 1.8%, 2%, 2.2%, 2.4%, 2.6%, 2.8%, 3%, percentage by weight of the manganese silica flour in medicine core
It is 1%, 1.2%, 1.4%, 1.6%, 1.8%, 2%, 2.2%, 2.4%, 2.6%, 2.8%, 3%, zircon sand is in medicine core
Percentage by weight be 2%, 2.2%, 2.4%, 2.6%, 2.8%, 3%, 3.2%, 3.4%, 3.6%, 3.8%, 4%, vanadium
Percentage by weight of the iron powder in medicine core be 1%, 1.2%, 1.4%, 1.6%, 1.8%, 2%, 2.2%, 2.4%, 2.6%,
2.8%th, 3%, percentage by weight of the molybdenum-iron powder in medicine core be 1%, 1.1%, 1.2%, 1.3%, 1.4%, 1.5%,
1.6%th, 1.7%, 1.8%, 1.9%, 2%.
Preferably, Al is contained in roasting red bauxite2O3、SiO2And Fe2O3；
Preferably, Al2O3、SiO2And Fe2O3Shared percetage by weight is 80~90% in red bauxite is calcined.
Preferably, Fe2O3The shared percetage by weight 10~15% in red bauxite is calcined.
Preferably, CaO, MgO, TiO are also included in roasting red bauxite2, one or more in P and S.
Preferably, P and S contents are no more than 1% in roasting red bauxite.
Preferably, the particle diameter of roasting red bauxite is 5~30mm.
Preferably, the particle diameter of roasting red bauxite is 10~15mm.
Preferably, flux cored filler rate is 17~23%, and flux cored filler rate refers to the percetage by weight that medicine core accounts for flux-cored wire.
Preferably, the weight ratio of roasting red bauxite and calcium ferrite is 2~4：1.
Preferably, the roasting red bauxite is calcined 1~2h at 900~1000 DEG C and is obtained using red bauxite, is calcined a side
It, in order to remove unnecessary moisture in red bauxite, is on the other hand red bauxite is resolved into comprising γ-Al that face is2O3And SiO2And
Fe2O3Mixture.
Preferably, fluoride is one or more mixtures in fluorite, prodan, barium fluoride, lithium fluoride.
Preferably, fluoride is prodan.
Preferably, the weight ratio of magnesium powder ferromanganese powder and manganese silica flour is 1.5：1：1.
Preferably, medicine core raw materials by weight includes：Roasting red bauxite 14~18%, calcium ferrite 4~6%, golden red
Stone 0~3%, fluoride 3.5~4.5%, magnesium powder 2~4%, ferromanganese powder 1.5~2.5%, manganese silica flour 1.5~2.5%, zircon sand
2.5~3.5%, vanadium iron powder 1.5~2.5%, molybdenum-iron powder 1.3~1.7%, balance of iron powder.
Preferably, medicine core raw materials by weight includes：Roasting red bauxite 15%, calcium ferrite 5%, rutile 1.5%,
Fluoride 4%, magnesium powder 3%, ferromanganese powder 2%, manganese silica flour 2%, zircon sand 3.5%, vanadium iron powder 2%, molybdenum-iron powder 1.5%, surplus
It is iron powder.
The effect of each raw material components of the present invention：
Roasting red bauxite：With Al2O3-SiO2The mineral that form is combined are present, and γ-Al are thermally decomposed at 950 DEG C or so2O3
And SiO2And other materials.γ-Al2O3A kind of specific surface big activated alumina of surface porosity, many pore structures.SiO2
Acted on certain slugging.Another main component is Fe in roasting red bauxite2O3, with very strong slugging, slaggability,
And increased the oxidation characteristic of medicine core, Fe2O3When content is more than 10%, the viscosity of slag can be substantially reduced, improve droplet transfer
Form, when content is more than 15%, damages Welding seam inclusion form, reduces the mechanical property of weld metal.
Calcium ferrite：It is heated and is decomposed into CaO and Fe2O3, it is a kind of preferable fluoride-free composite fluxing medium, reduce the viscous of slag
Property, enhance mobility.
Rutile：Slag former, main component is TiO2。
Fluoride：As gas-forming agent, vaporized in welding process, so as to form gas around the deposited metal region of welding wire
Phragma reduces the partial pressure of the nitrogen around deposited metal region from welding wire, reduces the nitrogen amount of deposited metal absorption, improves
The mechanical property and outward appearance of welding wire.Airbond additionally aids the steam of purification arc zone, welding wire hydrogen-sucking amount is reduced, so as to reduce
The cool attenuation of welding wire.
Magnesium powder：As deoxidier, MgO is formed with oxidation, improve the removability of slag and the all-position welding of slag, with
Ferromanganese powder and manganese silica flour are used cooperatively, and strengthen deoxidation, form composite oxides, welding seam toughness are effectively improved, while can play
Improve arcing.
Zircon sand：Slag making is mainly played, the effect of the physical and chemical performance of slag is adjusted, it is appropriate to add so that droplet size diminishes,
Improve droplet transfer mode, it is to avoid occur stagnant molten phenomenon in welding process, the all-position welding technique of welding wire can be improved.
Vanadium iron powder and molybdenum-iron powder：As rare element vanadium and the adding ingredient of molybdenum, make the mechanical property of deposited metal more
Stabilization, particularly low temperature impact properties.
Iron powder：Its effect is to improve flux-cored wire deposition rate, adjusts the composition of deposited metal, forms weld metal.
In the present invention, using roasting red bauxite as the main component of slag former, part rutile is substituted, reduce weld seam
Ti contents in metal, improve the toughness of welding line joint, and roasting red bauxite is formed with CaO-Al2O3-SiO2And CaO-SiO2-
Fe2O3Based on ternary slag system, wherein Al2O3Predominantly γ-Al2O3, its be surface porosity, many pore structures specific surface it is big
Activated alumina, reduces the viscosity of slag, refines molten drop, improves the mechanical property of weld seam, SiO2With certain slugging
Effect, another main component is Fe in roasting red bauxite2O3, with very strong slugging, slaggability, easily de- slag, has during welding
Effect reduces, reduces and splash, and increased the oxidation characteristic of slag；Roasting red bauxite is used cooperatively with calcium ferrite, makes to weld
The slag with good mobility, basicity and oxidisability is formed in journey, is conducive to desulfurization, dephosphorization, effectively inhibit cold cracking
The appearance of line, further increases the low-temperature impact toughness of weld seam；Magnesium powder, ferromanganese powder and manganese silica flour are used cooperatively, used as deoxidation
Agent, effectively controls the oxygen content in weld seam, enhances the mechanical property of weld seam, the rare element vanadium in vanadium iron powder and molybdenum-iron powder
With molybdenum synergy, the tensile strength and low-temperature impact toughness of deposited metal, fluoride, zircon sand collaboration have been further increased
Effect, adjusts the physical and chemical performance of slag, and droplet transfer mode reduces diffusible hydrogen content, taken into account mechanical strength and the punching of weld seam
Hit toughness.
Specific embodiment
Below, technical scheme is described in detail by specific embodiment.
Embodiment 1
A kind of siderotil soil type flux-cored wire, including mild steel crust and it is filled in the outer intracutaneous medicine core of mild steel, medicine core raw material
Include by weight percentage：Roasting red bauxite 14, calcium ferrite 6%, rutile 2%, fluoride 3.5%, magnesium powder 4%, ferromanganese powder
1.5%th, manganese silica flour 2.5%, zircon sand 3.5%, vanadium iron powder 2%, molybdenum-iron powder 1.3%, balance of iron powder.
Embodiment 2
A kind of siderotil soil type flux-cored wire, it is characterised in that including mild steel crust and be filled in the outer intracutaneous medicine of mild steel
Core, medicine core raw materials by weight includes：Roasting red bauxite 10%, calcium ferrite 8%, rutile 3%, fluorite 5%, magnesium powder
2%th, ferromanganese powder 3%, manganese silica flour 3%, zircon sand 3.5%, vanadium iron powder 3%, molybdenum-iron powder 1.7%, balance of iron powder；Roasting siderotil
Al in soil2O3、SiO2And Fe2O3Shared percetage by weight is 85%, Fe2O3Shared percetage by weight 12%.
Embodiment 3
A kind of siderotil soil type flux-cored wire, it is characterised in that including mild steel crust and be filled in the outer intracutaneous medicine of mild steel
Core, medicine core raw materials by weight includes：Roasting red bauxite 20%, calcium ferrite 3%, rutile 1%, prodan 3%, fluorine
Change barium 1.5%, magnesium powder 5%, ferromanganese powder 1%, manganese silica flour 1.5%, zircon sand 2.5%, vanadium iron powder 2.5%, molybdenum-iron powder 1%, it is remaining
It is iron powder to measure；Al in roasting red bauxite2O3、SiO2And Fe2O3Shared percetage by weight is 90%, Fe2O3Shared weight hundred
Fraction 10%, CaO, MgO, TiO are also included in roasting red bauxite2, P and S, wherein P and S contents be no more than 1%.
Embodiment 4
A kind of siderotil soil type flux-cored wire, it is characterised in that including mild steel crust and be filled in the outer intracutaneous medicine of mild steel
Core, medicine core raw materials by weight includes：Roasting red bauxite 18%, calcium ferrite 4%, rutile 5%, fluorite 1%, fluosilicic acid
Sodium 1%, barium fluoride 1%, magnesium powder 1%, ferromanganese powder 2.5%, manganese silica flour 1%, zircon sand 4%, vanadium iron powder 1%, molybdenum-iron powder 3%,
Balance of iron powder；Al in roasting red bauxite2O3、SiO2And Fe2O3Shared percetage by weight is 90%, Fe2O3Shared weight
Percentage 15%, CaO, MgO, TiO are also included in roasting red bauxite2, P and S, wherein P and S contents be no more than 1%, be calcined siderotil
The particle diameter of soil is 10mm.
Embodiment 5
A kind of siderotil soil type flux-cored wire, it is characterised in that including mild steel crust and be filled in the outer intracutaneous medicine of mild steel
Core, medicine core raw materials by weight includes：Roasting red bauxite 15%, calcium ferrite 5%, rutile 1.5%, fluorite 1%, fluorine silicon
Sour sodium 1%, barium fluoride 1%, lithium fluoride 1%, magnesium powder 3%, ferromanganese powder 2%, manganese silica flour 2%, zircon sand 3.5%, vanadium iron powder
2%th, molybdenum-iron powder 1.5%, balance of iron powder；Al in roasting red bauxite2O3、SiO2And Fe2O3Shared percetage by weight is 85%,
Fe2O3Shared percetage by weight 13%, CaO, MgO, TiO are also included in roasting red bauxite2, P and S, wherein P and S contents do not surpass
1% is crossed, the particle diameter for being calcined red bauxite is 30mm；Flux cored filler rate is 20%.
Embodiment 6
A kind of siderotil soil type flux-cored wire, it is characterised in that including mild steel crust and be filled in the outer intracutaneous medicine of mild steel
Core, medicine core raw materials by weight includes：Roasting red bauxite 10%, calcium ferrite 5%, rutile 3%, prodan 5%, magnesium
Powder 3%, ferromanganese powder 2%, manganese silica flour 2%, zircon sand 4%, vanadium iron powder 1%, molybdenum-iron powder %, balance of iron powder；Roasting red bauxite
Middle Al2O3、SiO2And Fe2O3Shared percetage by weight is 85%, Fe2O3Shared percetage by weight 12%, is calcined red bauxite
In also include CaO, MgO, TiO2, P and S, wherein P and S contents be no more than 1%, roasting red bauxite 2h is calcined at 900 DEG C, roast
The particle diameter for burning red bauxite is 5mm；Flux cored filler rate is 17%.
Embodiment 7
A kind of siderotil soil type flux-cored wire, it is characterised in that including mild steel crust and be filled in the outer intracutaneous medicine of mild steel
Core, medicine core raw materials by weight includes：Roasting red bauxite 20%, calcium ferrite 5%, rutile 1%, prodan 4%, magnesium
Powder 2%, ferromanganese powder 2%, manganese silica flour 1.5%, zircon sand 3%, vanadium iron powder 1.5%, molybdenum-iron powder 1.5%, balance of iron powder, roasting
Al in red bauxite2O3、SiO2And Fe2O3Shared percetage by weight is 85%, Fe2O3Shared percetage by weight 12%, roasting
Also include CaO, MgO, TiO in red bauxite2, P and S, wherein P and S contents be no more than 1%, roasting red bauxite roasted at 1000 DEG C
1h is burnt, the particle diameter for being calcined red bauxite is 15mm；Flux cored filler rate is 23%.
The above, the only present invention preferably specific embodiment, but protection scope of the present invention is not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technology according to the present invention scheme and its
Inventive concept is subject to equivalent or change, should all be included within the scope of the present invention.
Claims (10)
1. a kind of siderotil soil type flux-cored wire, it is characterised in that including mild steel crust and be filled in the outer intracutaneous medicine core of mild steel,
Medicine core raw materials by weight includes：Roasting red bauxite 10~20%, calcium ferrite 3~8%, rutile 0~5%, fluoride 3
~5%, magnesium powder 1~5%, ferromanganese powder 1~3%, manganese silica flour 1~3%, zircon sand 2~4%, vanadium iron powder 1~3%, molybdenum-iron powder 1
~2%, balance of iron powder.
2. siderotil soil type flux-cored wire according to claim 1, it is characterised in that include Al in roasting red bauxite2O3、S
iO2And Fe2O3；Preferably, Al2O3、S iO2And Fe2O3Shared percetage by weight is 80~90% in red bauxite is calcined.
3. the siderotil soil type flux-cored wire according to right wants 2, it is characterised in that Fe2O3The shared weight in red bauxite is calcined
Amount percentage 10~15%.
4. siderotil soil type flux-cored wire according to claim 1, it is characterised in that the weight of roasting red bauxite and calcium ferrite
Than being 2~4：1.
5. siderotil soil type flux-cored wire according to claim 1, it is characterised in that fluoride is fluorite, prodan, fluorine
Change one or more mixtures in barium, lithium fluoride；Preferably, fluoride is prodan.
6. siderotil soil type flux-cored wire according to claim 1, it is characterised in that the weight of magnesium powder, ferromanganese powder and manganese silica flour
Amount is than being 1.5：1：1.
7. siderotil soil type flux-cored wire according to claim 1, it is characterised in that the roasting red bauxite uses red bauxite
1~2h is calcined at 900~1000 DEG C to be obtained.
8. siderotil soil type flux-cored wire according to claim 1, it is characterised in that the particle diameter of roasting red bauxite for 5~
30mm；Preferably, the particle diameter of roasting red bauxite is 10~15mm.
9. the siderotil soil type flux-cored wire according to claim any one of 1-8, it is characterised in that medicine core raw material by weight hundred
Dividing ratio includes：Roasting red bauxite 14~18%, calcium ferrite 4~6%, rutile 0~3%, fluoride 3.5~4.5%, magnesium powder 2
~4%, ferromanganese powder 1.5~2.5%, manganese silica flour 1.5~2.5%, zircon sand 2.5~3.5%, vanadium iron powder 1.5~2.5%, molybdenum
Iron powder 1.3~1.7%, balance of iron powder.
10. siderotil soil type flux-cored wire according to claim 9, it is characterised in that medicine core raw materials by weight bag
Include：Roasting red bauxite 15%, calcium ferrite 5%, rutile 1.5%, fluoride 4%, magnesium powder 3%, ferromanganese powder 2%, manganese silica flour
2%th, zircon sand 3.5%, vanadium iron powder 2%, molybdenum-iron powder 1.5%, balance of iron powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611132621.0A CN106736018A (en) | 2016-12-09 | 2016-12-09 | A kind of siderotil soil type flux-cored wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611132621.0A CN106736018A (en) | 2016-12-09 | 2016-12-09 | A kind of siderotil soil type flux-cored wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106736018A true CN106736018A (en) | 2017-05-31 |
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ID=58875818
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|---|---|---|---|
| CN201611132621.0A Pending CN106736018A (en) | 2016-12-09 | 2016-12-09 | A kind of siderotil soil type flux-cored wire |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112935625A (en) * | 2021-02-05 | 2021-06-11 | 天津市金桥焊材集团股份有限公司 | High-toughness alkaline all-position flux-cored wire capable of adapting to plateau climate |
-
2016
- 2016-12-09 CN CN201611132621.0A patent/CN106736018A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112935625A (en) * | 2021-02-05 | 2021-06-11 | 天津市金桥焊材集团股份有限公司 | High-toughness alkaline all-position flux-cored wire capable of adapting to plateau climate |
| CN112935625B (en) * | 2021-02-05 | 2023-02-21 | 天津市金桥焊材集团股份有限公司 | High-toughness alkaline all-position flux-cored wire capable of adapting to plateau climate |
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Application publication date: 20170531 |