CN106271201A - A kind of for welding the tensile strength structural alloy steel submerged arc flux-cored wire more than 800MPa - Google Patents
A kind of for welding the tensile strength structural alloy steel submerged arc flux-cored wire more than 800MPa Download PDFInfo
- Publication number
- CN106271201A CN106271201A CN201610782244.9A CN201610782244A CN106271201A CN 106271201 A CN106271201 A CN 106271201A CN 201610782244 A CN201610782244 A CN 201610782244A CN 106271201 A CN106271201 A CN 106271201A
- Authority
- CN
- China
- Prior art keywords
- welding
- tensile strength
- 800mpa
- flux
- component
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/18—Submerged-arc welding
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Nonmetallic Welding Materials (AREA)
- Arc Welding In General (AREA)
Abstract
A kind of for welding the tensile strength structural alloy steel submerged arc flux-cored wire more than 800MPa, belong to materials processing field of welding material.The component of its powder body medicated core and the weight/mass percentage composition of each component be: ferrotianium: 12, molybdenum-iron: 23, electrolytic manganese: 68, metal nickel powder: 9 11, ferrosilicon: 23, iron powder: surplus；Flux-cored wire crust band is SPCC steel band；Powder body medicated core filling rate in cored solder wire is 28 32%.Using submerged-arc welding to prepare welding alloy technique, welding condition is: voltage 28 35V；Electric current 450 550A；Interlayer temperature 120 160 DEG C；Welding wire stretches out the distance of ignition tip: 40 50mm.There is the tensile strength more than 800MPa, excellent low-temperature impact resistance toughness, it is possible to be applicable to the lifting spud leg etc. of the structure member of top load, such as drilling platform.
Description
Technical field
The invention belongs to materials processing field of welding material, relate to a kind of for welding the tensile strength conjunction more than 800MPa
Gold structural steel submerged arc welding flux-cored wire, uses in the heavy structures such as sea oil drilling and production platform leg.
Background technology
Tensile strength is the most up to standard with low-temperature impact toughness is the one of the main reasons causing petroleum drilling and mining platform leg to lose efficacy,
Huge risk and material consumption is brought to petroleum drilling and mining.In modern industry and technology develop, petroleum drilling and mining carrying structure exists
In the face of increasingly rugged environment in using, Tensile strength and low-temperature impact-resistant performance are required more and more higher.
High-intensity welding alloy tensile property under the effect of certain impact power depends on several factors, depends mainly on
Its alloy is constituted and substrate microstructure.In order to tackle the complex work environment of big load and low-temperature impact, it is desired to welding metal is existing
The tensile strength mated with mother metal has again preferable low-temperature impact toughness.
Summary of the invention
It is an object of the invention to provide a kind of for welding the tensile strength structural alloy steel submerged-arc welding more than 800MPa
Connect flux-cored wire.
For achieving the above object, the present invention adopts the technical scheme that: add to improve the tensile strength of welding alloy
Certain nickel and molybdenum element；In order to improve toughness and the crack resistance of welding alloy, reduce the content of carbon, and add Mn element conduct
Austenizer makes in the matrix of welding alloy thing predominantly ferrite and austenite mutually, simultaneously because the addition of Mn, welding
Alloy also has oneself's hardening capacity under the conditions of impact, it is even more important that the addition of a small amount of Ti element, has refined group greatly
Knit crystal grain, the crystal boundary encryption that crystal grain refinement brings, further increase tensile strength.
Based on above-mentioned technical though, the present invention's is a kind of for welding the tensile strength structural alloy steel use more than 800MPa
Submerged arc welding flux-cored wire, it is characterised in that the component of its powder body medicated core and the weight/mass percentage composition (%) of each component be: titanium
Ferrum: 1-2, molybdenum-iron: 2-3, electrolytic manganese: 6-8, metal nickel powder: 9-11, ferrosilicon: 2-3, iron powder: surplus；Flux-cored wire crust band
For SPCC steel band；Powder body medicated core filling rate in cored solder wire i.e. crust band is 30-35%.The component of described ferrotianium and each
Component percentages is Ti30-40%, Fe surplus；The component of molybdenum-iron and each component percentages are Mo 55-60%, C≤0.1%, Fe
Surplus；The component of electrolytic manganese is Mn99.5%, C≤0.08%, surplus impurity；The component of metal nickel powder is Ni 99.8%, surplus
Impurity；The component of ferrosilicon is Si 40-45%, Fe surplus.
The above-mentioned flux-cored wire of the present invention is used to prepare a kind of for welding the tensile strength structural alloy steel more than 800MPa
Method with submerged arc welding flux-cored wire, it is characterised in that comprise the steps:
Step 1, rolls welding wire according to above-mentioned powder core proportioning medicated core, obtains the powder cored filament material of diameter 4.0mm；Step 2, uses
Welding alloy technique is prepared in submerged-arc welding, and welding condition is: voltage 28-35V；Electric current 450-550A；Interlayer temperature 120-160
℃；Welding wire stretches out the distance of ignition tip: 40-50mm.
Described in step 2, welding procedure is optimized, and welding condition is set as: voltage 30-32V；Electric current 480-
520A；Interlayer temperature 140-150 DEG C；Welding wire stretches out the distance of ignition tip: 42-45mm.
The most described flux-cored wire, each compositional range of welding wire is preferably as follows: ferrotianium 1.2%, molybdenum-iron 2.8%, electrolytic manganese
6%, metal nickel powder 10%, ferrosilicon 2.5%, iron powder surplus.
The content of the alloying element formed in welding alloy is in the range of following: Mo:0.6-0.7wt.%；Mn:1.4～
2wt.%；Ti:0.05～0.2wt.%；Ni:2-2.5wt.%；C:0.05～0.1wt.%；Fe: surplus；
In flux-cored wire, main component effect is as follows:
Titanium: crystal grain thinning, can improve the tensile strength of deposited metal.
Manganese: austenizer, makes the metallic matrix thing after welding be mainly ferrite and austenite mutually, does not produce geneva
Body, and under shock environment, produce shock peening.
Molybdenum: improve the tensile strength of deposited metal, reduces the temper brittleness of deposited metal.Solid solution molybdenum in the base
Atomic energy strengthens the intensity of matrix, improves the tensile strength of deposited metal.
Carbon: make matrix obtain certain intensity.
Welding alloy prepared by the flux-cored wire developed by the present invention contains the tensile strength more than 800MPa, and higher is low
Temperature impact flexibility.Result shows that welding usability is good, and after welding, metal is under the conditions of certain impact, tensile property and shock resistance
Function admirable, it is achieved that goal of the invention.
Accompanying drawing explanation
Fig. 1 is the scene photograph of example welding.
Detailed description of the invention
The welding wire of the present invention is realized by the following method:
Select the SPCC steel band of 16 × 0.8 (width is 16mm, and thickness is 0.8mm).First rolled into U-shaped.According to medicated core
Proportion design is made into medicated powder, adds powder rolling and tube reducing becomes the welding wire of diameter 4.0mm.
Embodiment 1, ZS80M
A kind of for welding the tensile strength structural alloy steel submerged arc welding flux-cored wire more than 800MPa, described powder body
The proportioning of medicated core is: ferrotianium 1.2%, molybdenum-iron 2.8%, electrolytic manganese 6%, metal nickel powder 10%, ferrosilicon 2.5%, and iron powder surplus is filled out
Powder rate is 31%.Welding condition is set as: voltage 32V；Electric current 490A；Interlayer temperature 145 DEG C；Welding wire stretches out ignition tip
Distance: 45mm.Select high alkalinity submerged arc welding flux ZSHJ801.Welding alloy composition prepared by above-mentioned technique is shown in Table 1, site welding
Meeting Fig. 1, weld properties is shown in Table 2.
Welding alloy prepared by example is carried out chemical composition test and Mechanics Performance Testing.Chemical composition is shown in Table 1, mechanics
Results of property is shown in Table 2, and welding condition is shown in Table 3.
In the above-described embodiments, component and each component percentages of described ferrotianium is Ti30-40%, Fe surplus；Molybdenum-iron
Component and each component percentages are Mo 55-60%, C≤0.1%, Fe surplus；The component of electrolytic manganese be Mn99.5%, C≤
0.08%, surplus impurity；The component of metal nickel powder is Ni 99.8%, surplus impurity；The component of ferrosilicon is Si 40-45%, Fe
Surplus.
Table 1 is the chemical component table of deposited metal
Table 2 is the mechanical property table of deposited metal
Table 2
Table 3 is welding parameter
| Gage of wire (mm) | Welding current (A) | Weldingvoltage (V) | Interlayer temperature (DEG C) |
| 4.0 | 490 | 32 | 145 |
The welding wire of the present invention is not limited by examples detailed above, any scope claimed in claims of the present invention
Interior improvement and change are all within protection scope of the present invention.
Claims (9)
1., for welding a tensile strength structural alloy steel submerged arc welding flux-cored wire more than 800MPa, its feature exists
In, the component of its powder body medicated core and the weight/mass percentage composition (%) of each component be: ferrotianium: 1-2, molybdenum-iron: 2-3, electrolytic manganese: 6-8,
Metal nickel powder: 9-11, ferrosilicon: 2-3, iron powder: surplus；Flux-cored wire crust band is SPCC steel band；Powder body medicated core is in hollow weldering
Filling rate in silk i.e. crust band is 30-35%.
2. according to a kind of structural alloy steel submerged arc welding being more than 800MPa for welding tensile strength described in claim 1
Flux-cored wire, it is characterised in that ferrotianium 1.2%, molybdenum-iron 2.8%, electrolytic manganese 6%, metal nickel powder 10%, ferrosilicon 2.5%, iron powder
Surplus.
3. according to a kind of structural alloy steel submerged arc welding being more than 800MPa for welding tensile strength described in claim 1
Flux-cored wire, it is characterised in that the component of described ferrotianium and each component percentages are Ti30-40%, Fe surplus.
4. according to a kind of structural alloy steel submerged arc welding being more than 800MPa for welding tensile strength described in claim 1
Flux-cored wire, it is characterised in that the component of molybdenum-iron and each component percentages are Mo 55-60%, C≤0.1%, Fe surplus.
5. according to a kind of structural alloy steel submerged arc welding being more than 800MPa for welding tensile strength described in claim 1
Flux-cored wire, it is characterised in that the component of electrolytic manganese is Mn99.5%, C≤0.08%, surplus impurity.
6. according to a kind of structural alloy steel submerged arc welding being more than 800MPa for welding tensile strength described in claim 1
Flux-cored wire, it is characterised in that the component of metal nickel powder is Ni 99.8%, surplus impurity.
7. according to a kind of structural alloy steel submerged arc welding being more than 800MPa for welding tensile strength described in claim 1
Flux-cored wire, it is characterised in that the component of ferrosilicon is Si 40-45%, Fe surplus.
8. use the flux-cored wire described in any one of claim 1-7 for welding the tensile strength alloy structure more than 800MPa
The method of steel, it is characterised in that comprise the following steps: step 1, rolls welding wire according to above-mentioned powder core proportioning medicated core, obtains diameter
The powder cored filament material of 4.0mm；
Step 2, uses submerged-arc welding to prepare welding alloy technique, and welding condition is: voltage 28-35V；Electric current 450-550A；
Interlayer temperature 120-160 DEG C；Welding wire stretches out the distance of ignition tip: 40-50mm.
The most in accordance with the method for claim 8, it is characterised in that described in step 2, welding procedure is optimized, by welding procedure
Parameter is set as: voltage 30-32V；Electric current 480-520A；Interlayer temperature 140-150 DEG C；Welding wire stretches out the distance of ignition tip: 42-
45mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610782244.9A CN106271201A (en) | 2016-08-30 | 2016-08-30 | A kind of for welding the tensile strength structural alloy steel submerged arc flux-cored wire more than 800MPa |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610782244.9A CN106271201A (en) | 2016-08-30 | 2016-08-30 | A kind of for welding the tensile strength structural alloy steel submerged arc flux-cored wire more than 800MPa |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106271201A true CN106271201A (en) | 2017-01-04 |
Family
ID=57672308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610782244.9A Pending CN106271201A (en) | 2016-08-30 | 2016-08-30 | A kind of for welding the tensile strength structural alloy steel submerged arc flux-cored wire more than 800MPa |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106271201A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108340091A (en) * | 2018-05-14 | 2018-07-31 | 北京智双科技发展有限公司 | A kind of ultra-fine diameter X80 pipe line steel flux-cored wire used for welding |
| CN111360449A (en) * | 2020-03-31 | 2020-07-03 | 西安理工大学 | Flux-cored wire for additive manufacturing and preparation method of low-alloy high-strength steel |
| CN113649675A (en) * | 2021-08-26 | 2021-11-16 | 武汉钢铁有限公司 | Double-wire submerged arc welding method for engineering mechanical steel with tensile strength of 800MPa |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1162473A (en) * | 1967-02-09 | 1969-08-27 | Murex Welding Processes Ltd | Improvements in Arc Welding. |
| CN1433869A (en) * | 2003-02-21 | 2003-08-06 | 安泰科技股份有限公司 | Low-alloy high-strength high-toughness electric welding rod |
| CN1528555A (en) * | 2003-10-17 | 2004-09-15 | 安泰科技股份有限公司 | High-strength welding electrode |
| CN1857849A (en) * | 2006-05-29 | 2006-11-08 | 中国船舶重工集团公司第七二五研究所 | High strength and high toughness welding rod |
| CN101549442A (en) * | 2008-03-31 | 2009-10-07 | 鞍钢股份有限公司 | High-toughness metal core gas shielded welding wire and manufacturing method thereof |
| CN101733580A (en) * | 2008-11-18 | 2010-06-16 | 山东索力得焊材有限公司 | 800MPa-grade high-strength high-tenacity gas shielded welding wire |
| CN103028864A (en) * | 2012-12-14 | 2013-04-10 | 中国船舶重工集团公司第七二五研究所 | High-strength and high-toughness metal powder type flux-cored wire with no need of being pre-heated before welded |
| CN104942475A (en) * | 2015-07-10 | 2015-09-30 | 北京工业大学 | High-strength metal core submerged arc welding wire for X90/X100 pipeline steel and preparation method of high-strength metal core submerged arc welding wire |
-
2016
- 2016-08-30 CN CN201610782244.9A patent/CN106271201A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1162473A (en) * | 1967-02-09 | 1969-08-27 | Murex Welding Processes Ltd | Improvements in Arc Welding. |
| CN1433869A (en) * | 2003-02-21 | 2003-08-06 | 安泰科技股份有限公司 | Low-alloy high-strength high-toughness electric welding rod |
| CN1528555A (en) * | 2003-10-17 | 2004-09-15 | 安泰科技股份有限公司 | High-strength welding electrode |
| CN1857849A (en) * | 2006-05-29 | 2006-11-08 | 中国船舶重工集团公司第七二五研究所 | High strength and high toughness welding rod |
| CN101549442A (en) * | 2008-03-31 | 2009-10-07 | 鞍钢股份有限公司 | High-toughness metal core gas shielded welding wire and manufacturing method thereof |
| CN101733580A (en) * | 2008-11-18 | 2010-06-16 | 山东索力得焊材有限公司 | 800MPa-grade high-strength high-tenacity gas shielded welding wire |
| CN103028864A (en) * | 2012-12-14 | 2013-04-10 | 中国船舶重工集团公司第七二五研究所 | High-strength and high-toughness metal powder type flux-cored wire with no need of being pre-heated before welded |
| CN104942475A (en) * | 2015-07-10 | 2015-09-30 | 北京工业大学 | High-strength metal core submerged arc welding wire for X90/X100 pipeline steel and preparation method of high-strength metal core submerged arc welding wire |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108340091A (en) * | 2018-05-14 | 2018-07-31 | 北京智双科技发展有限公司 | A kind of ultra-fine diameter X80 pipe line steel flux-cored wire used for welding |
| CN108340091B (en) * | 2018-05-14 | 2020-07-31 | 北京智双科技发展有限公司 | Flux-cored wire for welding superfine X80 pipeline steel |
| CN111360449A (en) * | 2020-03-31 | 2020-07-03 | 西安理工大学 | Flux-cored wire for additive manufacturing and preparation method of low-alloy high-strength steel |
| CN111360449B (en) * | 2020-03-31 | 2022-04-01 | 西安理工大学 | Flux-cored wire for additive manufacturing and preparation method of low-alloy high-strength steel |
| CN113649675A (en) * | 2021-08-26 | 2021-11-16 | 武汉钢铁有限公司 | Double-wire submerged arc welding method for engineering mechanical steel with tensile strength of 800MPa |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111266761B (en) | Low-nickel nitrogen-containing austenitic stainless steel flux-cored wire and preparation method thereof | |
| CN105269174B (en) | A kind of ocean engineering 460MPa grades of flux-cored wires and its application | |
| CA2966719C (en) | Method for producing circumferential weld joint for low-carbon martensitic stainless steel pipes | |
| CN102528319A (en) | High-strength high-ductility submerged-arc welding wire | |
| JP2011005531A (en) | Flux-cored welding wire for high-tensile steel and method for manufacturing the same | |
| CN103391829B (en) | There is provided excellent low temperature toughness and the medicated core arc welding wire of weldability for welding point and use its welding point | |
| CN106271201A (en) | A kind of for welding the tensile strength structural alloy steel submerged arc flux-cored wire more than 800MPa | |
| CN104526188A (en) | Seamless flux-cored wire with postwelding stress relieving heat treatment | |
| CN106102989A (en) | Metal-cored welding electrode | |
| CN110446799A (en) | The excellent ferrite-group stainless steel pipe of the resistance to salt damage of clearance portion, pipe end thicken structural body, welding point and welding structural body | |
| CN110125572A (en) | It is a kind of can post weld heat treatment seamless submerged arc flux-cored wire | |
| CN106271207A (en) | A kind of for welding the tensile strength structural alloy steel gas-shielded flux-cored wire more than 800MPa | |
| CN107900556A (en) | A kind of austenitic stainless steel self-protection flux-cored wire | |
| CN102873465B (en) | 700MPa low-alloy high-strength welding wire for heavy machinery and use method thereof | |
| CN106425163A (en) | 1100Mpa grade high-strength high-toughness low-alloy steel electric welding rod | |
| CN107081508A (en) | Thickness connects method in the double wire hidden arc welding of the 15 20mm ultrafast cold X70 steel of high-performance | |
| CN102601543A (en) | Low-carbon submerged arc welding wire | |
| CN101913035B (en) | High-tenacity gas shielded welding wire for welding low-temperature steel and using method thereof | |
| CN104400253A (en) | Submerged-arc welding wire for constructing ocean platform | |
| CN106312367A (en) | Gas-shielded flux-cored wire for welding x80 pipeline steel | |
| CN108637524A (en) | A kind of 1500Mpa grade super strengths steel alloy flux-cored wire used for welding | |
| CN101318273A (en) | Ultra-low carbon solder wire material austenitic stainless steel | |
| CN107914097A (en) | High-strength steel gas shield welding flux-cored wire | |
| CN1257039C (en) | High-strength welding electrode | |
| CN111278599A (en) | Flux-cored wire for submerged arc welding and material for submerged arc welding |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170104 |
|
| WD01 | Invention patent application deemed withdrawn after publication |