CN106695170B - Stainless steel welded gas-shielded flux-cored wire - Google Patents
Stainless steel welded gas-shielded flux-cored wire Download PDFInfo
- Publication number
- CN106695170B CN106695170B CN201611152859.XA CN201611152859A CN106695170B CN 106695170 B CN106695170 B CN 106695170B CN 201611152859 A CN201611152859 A CN 201611152859A CN 106695170 B CN106695170 B CN 106695170B
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- Prior art keywords
- stainless steel
- iron
- cored wire
- medicine core
- steel welded
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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
- B23K35/24—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
- B23K35/3066—Fe as the principal constituent with Ni as next major constituent
-
- 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
- B23K35/308—Fe as the principal constituent with Cr as next major constituent
- B23K35/3086—Fe as the principal constituent with Cr as next major constituent containing Ni or Mn
-
- 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
- B23K35/40—Making wire or rods for soldering or welding
- B23K35/406—Filled tubular wire or rods
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Nonmetallic Welding Materials (AREA)
Abstract
The invention proposes a kind of stainless steel welded gas-shielded flux-cored wires; including stainless steel crust and medicine core; it is calculated according to weight percent; the constituent of the medicine core are as follows: manganese-silicon 3~9%, silica 1~5%, Cr 5~20%, Ni 10~20%, potassium titanate 0.5~2.5%, bismuth oxide 10~15%, di-iron trioxide 2~8%, fluoride 0.2~2.2% and graphite 0.5~3.5%, surplus is iron.The welding wire has the advantages of arc stability, splashing is small, appearance of weld is beautiful, and vertical downward welding may be implemented using short circuiting transfer.
Description
Technical field
The invention belongs to technical field of welding materials, and in particular to a kind of stainless steel welded gas-shielded flux-cored wire.
Background technique
In recent years, with the rapid development of economy, stainless steel industry is also developed faster.Stainless steel consumption figure it is strong
Strength increases, and will drive the rapid growth in welding market: on the one hand, the quality progress of steel promotes stainless steel welding material more
It is new to regenerate；On the other hand, stainless steel welded efficiently (automation) process obviously raises speed, and promotes the breed structure readjustment of welding material
Paces are accelerated.
Compared with traditional stick electrode, copper plating solid core welding wire, submerged arc welding flux, welded using stainless flux-cored wire
With apparent advantage, first, welding process is more continuous, and may be implemented automatic welding, thus reduce welding point,
Greatly improve production efficiency, be 3-4 times of manual electric arc welding, welding quality is good, has saved the energy, reduce it is comprehensive at
This；Second, there is no fever and redness phenomenons for stainless flux-cored wire, and it is minimum to splash, and weld seam light is silvery white in color, postwelding one
As do not need pickling, grinding and buffing；Third, the medicinal powder in flux-cored wire all passes through high temperature baking, moisture is few, before welding
It does not need to dry, stomata sensitivity is lower.So stainless flux-cored wire is widely used in shipbuilding, petrochemical industry, pressure vessel, steel knot
The industries such as structure and engineering machinery.
Therefore, with economic quick, stable, sustainable development, demand rapid growth of the market to stainless steel material, to not
The demand of rust steel flux-cored wire is also increasing, develops, develops a kind of flux core welding wire matched with stainless steel, keeps it full
In the case where foot low cost, also has the characteristics that welding technological properties is good, arc stability, splashing is small, appearance of weld is beautiful, be
Highly important research topic.
Summary of the invention
The present invention proposes a kind of stainless steel welded gas-shielded flux-cored wire, the welding wire have arc stability, splash it is small,
The advantages of appearance of weld is beautiful, and vertical downward welding may be implemented using short circuiting transfer.
The technical scheme of the present invention is realized as follows:
A kind of stainless steel welded gas-shielded flux-cored wire, including stainless steel crust and medicine core, according to weight percent
It calculates, the constituent of the medicine core are as follows:
Manganese-silicon 3~9%, silica 1~5%, Cr 5~20%, Ni 10~20%, potassium titanate 0.5~
2.5%, bismuth oxide 10~15%, di-iron trioxide 2~8%, fluoride 0.2~2.2% and graphite 0.5~3.5%, surplus are
Iron.
Further, the fluoride is one of calcirm-fluoride, prodan, potassium fluosilicate and cryolite or more
Kind.
Further, the constituent of the medicine core are as follows:
Manganese-silicon 5%, silica 3%, Cr 12%, Ni 16%, potassium titanate 1.2%, bismuth oxide 12%, three aoxidize
Two iron 6%, fluoride 1.2% and graphite 2%, surplus is iron.
Further, the constituent of the medicine core are as follows:
Manganese-silicon 9%, silica 5%, Cr 20%, Ni 10%, potassium titanate 0.5%, bismuth oxide 10%, three aoxidize
Two iron 2%, fluoride 2.2% and graphite 0.5%, surplus is iron.
Further, the diameter of the gas-shielded flux-cored wire is 1.2~1.8mm.
Manganese-silicon: the content of its silicon is 20%~25%, and suitable element silicon is added in formula to be helped to improve weld seam
Molding.
Potassium titanate and bismuth oxide can refine crystal grain, improve low-temperature impact toughness, and can improve welding pool surface tension,
Improve the molding of weld seam.
Graphite: deoxidation provides C element into molten bath.
Stainless steel welded gas-shielded flux-cored wire preparation method of the invention uses the prior art, including following step
It is rapid:
1, medicinal powder of the present invention is prepared by formula rate；
2, steel band is rolled into U-shaped, then 16%~20% medicine of the present invention for accounting for welding wire gross weight of the present invention is added into U-lag
Core powder；
3, U-lag is healed up with forming machine, makes medicine core powder package wherein, by wire drawing machine, by road by wire drawing machine drawing,
Tube reducing finally makes its diameter reach 1.2~1.8mm, obtains final products.
Beneficial effects of the present invention:
Deposited metal after being welded with gas-shielded flux-cored wire provided by the invention: tensile strength >=650Mpa, elongation percentage
>=46%；And welding technological properties is good, and arc stability, splashing is small, appearance of weld is beautiful, may be implemented using short circuiting transfer
Vertical downward welding.
Specific embodiment
Embodiment 1
Select the steel band of 10mm × 0.4mm, carbon, the 0.5- of chemical component (by weight percentage) 0.01-0.1%
1.5% manganese, the silicon of 0.1-1%, the sulphur of 0.005-0.015%, the phosphorus of 0.005-0.035%, the chromium of 15-25%, 5-15%
Nickel, surplus be iron.
Medicine core forms percentage, and medicine core accounts for the 16% of welding wire weight, the weight percent of medicine core composition therein
Number are as follows:
Manganese-silicon 5%, silica 3%, Cr 12%, Ni 16%, potassium titanate 1.2%, bismuth oxide 12%, three aoxidize
Two iron 6%, calcirm-fluoride 1.2% and graphite 2%, surplus is iron.
Welding parameter: I=200-220A, U=30-32V, gas flow 20L/min, pure CO2 gas.
Deposited metal composition (count by weight percentage) are as follows: C 0.025%, Mn1.33, Si 0.5,
S0.002%, P0.012, Cr 18.78, Ni9.67, surplus Fe.
Deposited metal mechanical performance (pure CO2Gas) are as follows: tensile strength 680MPa, elongation percentage 48%.
Embodiment 2
Select the steel band of 10mm × 0.4mm, carbon, the 0.5- of chemical component (by weight percentage) 0.01-0.1%
1.5% manganese, the silicon of 0.1-1%, the sulphur of 0.005-0.015%, the phosphorus of 0.005-0.035%, the chromium of 15-25%, 5-15%
Nickel, surplus be iron.
Medicine core forms percentage, and medicine core accounts for the 18% of welding wire weight, the weight percent of medicine core composition therein
Number are as follows:
Manganese-silicon 9%, silica 5%, Cr 20%, Ni 10%, potassium titanate 0.5%, bismuth oxide 10%, three aoxidize
Two iron 2%, potassium fluosilicate 2.2% and graphite 0.5%, surplus is iron.
Deposited metal composition (count by weight percentage) are as follows: C 0.025%, Mn1.33, Si 0.5,
S0.002%, P0.012, Cr 18.78, Ni9.67, surplus Fe.
Deposited metal mechanical performance (pure CO2Gas) are as follows: tensile strength 650MPa, elongation percentage 46%.
Embodiment 3
Select the steel band of 10mm × 0.4mm, carbon, the 0.5- of chemical component (by weight percentage) 0.01-0.1%
1.5% manganese, the silicon of 0.1-1%, the sulphur of 0.005-0.015%, the phosphorus of 0.005-0.035%, the chromium of 15-25%, 5-15%
Nickel, surplus be iron.
Medicine core forms percentage, and medicine core accounts for the 20% of welding wire weight, the weight percent of medicine core composition therein
Number are as follows:
Medicine core forms percentage, and medicine core accounts for the 18% of welding wire weight, the weight percent of medicine core composition therein
Number are as follows:
Manganese-silicon 3%, silica 1 %, Cr 5%, Ni20%, potassium titanate 2.5%, the oxidation of bismuth oxide 15%, three two
Iron 8%, prodan 0.2% and graphite 3.5%, surplus is iron.
Deposited metal composition (count by weight percentage) are as follows: C 0.025%, Mn1.33, Si 0.5,
S0.002%, P0.012, Cr 18.78, Ni9.67, surplus Fe.
Deposited metal mechanical performance (pure CO2Gas) are as follows: tensile strength 670MPa, elongation percentage 46.8%.
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 (5)
1. a kind of stainless steel welded gas-shielded flux-cored wire, including stainless steel crust and medicine core, which is characterized in that according to weight
It measures percentage to calculate, the constituent of the medicine core are as follows:
Manganese-silicon 3~9%, silica 1~5%, Cr 5~20%, Ni 10~20%, potassium titanate 0.5~2.5%, oxygen
Change bismuth 10~15%, di-iron trioxide 2~8%, fluoride 0.2~2.2% and graphite 0.5~3.5%, surplus is iron.
2. stainless steel welded gas-shielded flux-cored wire according to claim 1, which is characterized in that the fluoride is
One or more of calcirm-fluoride, prodan, potassium fluosilicate and cryolite.
3. stainless steel welded gas-shielded flux-cored wire according to claim 1 or 2, which is characterized in that the medicine core
Constituent are as follows:
Manganese-silicon 5%, silica 3%, Cr 12%, Ni 16%, potassium titanate 1.2%, bismuth oxide 12%, di-iron trioxide
6%, fluoride 1.2% and graphite 2%, surplus is iron.
4. stainless steel welded gas-shielded flux-cored wire according to claim 1 or 2, which is characterized in that the medicine core
Constituent are as follows:
Manganese-silicon 9%, silica 5%, Cr 20%, Ni 10%, potassium titanate 0.5%, bismuth oxide 10%, di-iron trioxide
2%, fluoride 2.2% and graphite 0.5%, surplus is iron.
5. stainless steel welded gas-shielded flux-cored wire according to claim 1, which is characterized in that the gas shielded medicine
The diameter of core welding wire is 1.2~1.8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611152859.XA CN106695170B (en) | 2016-12-14 | 2016-12-14 | Stainless steel welded gas-shielded flux-cored wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611152859.XA CN106695170B (en) | 2016-12-14 | 2016-12-14 | Stainless steel welded gas-shielded flux-cored wire |
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| Publication Number | Publication Date |
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| CN106695170A CN106695170A (en) | 2017-05-24 |
| CN106695170B true CN106695170B (en) | 2019-02-19 |
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| CN201611152859.XA Active CN106695170B (en) | 2016-12-14 | 2016-12-14 | Stainless steel welded gas-shielded flux-cored wire |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108941974A (en) * | 2018-09-11 | 2018-12-07 | 江苏思迪彼特新材料科技有限公司 | A kind of corrosion-resistant stainless steel arc welding flux cored wire and preparation method thereof |
| CN110153586B (en) * | 2019-05-27 | 2021-07-02 | 中国船舶重工集团公司第七二五研究所 | Ultralow-hydrogen moisture-absorption-resistant welding electrode with seamless flux-cored wire as core wire and preparation method thereof |
| CN111203673B (en) * | 2020-01-13 | 2021-12-28 | 武汉铁锚焊接材料股份有限公司 | High-toughness metal powder flux-cored welding wire for argon-rich shielded welding |
| CN112643243B (en) * | 2020-11-30 | 2022-04-19 | 山东聚力焊接材料有限公司 | Stainless steel flux-cored wire |
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| CN101259574A (en) * | 2008-04-22 | 2008-09-10 | 武汉铁锚焊接材料股份有限公司 | Stainless steel welding stick |
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| JP2011125904A (en) * | 2009-12-18 | 2011-06-30 | Nippon Steel & Sumikin Welding Co Ltd | Flux cored wire for gas shielded arc welding for weather resistant steel |
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| CN101259574A (en) * | 2008-04-22 | 2008-09-10 | 武汉铁锚焊接材料股份有限公司 | Stainless steel welding stick |
| CN101497152A (en) * | 2009-02-26 | 2009-08-05 | 山东大学 | Large-diameter flux-cored wire for revolving body or wear-resistant composite board overlaying welding |
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|---|---|
| CN106695170A (en) | 2017-05-24 |
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