CN104942414B - A kind of ply-metal submerged welding process - Google Patents
A kind of ply-metal submerged welding process Download PDFInfo
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- CN104942414B CN104942414B CN201510331702.2A CN201510331702A CN104942414B CN 104942414 B CN104942414 B CN 104942414B CN 201510331702 A CN201510331702 A CN 201510331702A CN 104942414 B CN104942414 B CN 104942414B
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- 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
- B23K9/00—Arc welding or cutting
- B23K9/18—Submerged-arc welding
- B23K9/186—Submerged-arc welding making use of a consumable electrodes
- B23K9/188—Submerged-arc welding making use of a consumable electrodes making use of several electrodes
-
- 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
- B23K33/00—Specially-profiled edge portions of workpieces for making soldering or welding connections; Filling the seams formed thereby
-
- 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
- B23K35/38—Selection of media, e.g. special atmospheres for surrounding the working area
- B23K35/383—Selection of media, e.g. special atmospheres for surrounding the working area mainly containing noble gases or nitrogen
-
- 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
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/18—Dissimilar materials
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Arc Welding In General (AREA)
Abstract
The invention provides a kind of ply-metal submerged welding process.The step of described technique is as follows：1st, early-stage preparations：（1）, bi-metal composite panel；（2）, welding material；2nd, parameter setting：（1）, bevel for welding size；（2）, welding conditions；3rd, welding manner：Matrix adopts mixed gas Ar+CO2Protect pre- postwelding, then carry out 3 passage submerged-arc weldings, after the completion of matrix welding, coating is connect using a time double wire hidden arc welding.This technique can reduce the input of reforming equipment, and that can improve common pipeline steel tube and rustless steel double-metal composite steel tube replaces production again.
Description
Technical field
The present invention relates to metal welding field, it is related specifically to a kind of ply-metal submerged welding process.
Background technology
At present, with the exploitation in acid-soluble oil gas field, oil gas pipeline is faced with increasingly harsher corrosive environment, a lot
Pipe-line causes due to seriously corroded to lose efficacy, or even can set off an explosion, and threatens personal safety, pollutes environment, consequence
Very serious.Develop rapidly as steel pipe is manufacturing, rustless steel double-metal composite steel tube has the high intensity of carbon steel, height because of it
The mechanical properties such as toughness, have stainless corrosion resistance advantage again, have therefore obtained extensive utilization.However, because rustless steel is double
Two kinds of materials of metal composite steel pipe have different chemical composition and physical property, easily cause fusion area in welding process
Carbon diffusion and the dilution of alloying element, cause property of welded joint to deteriorate, affect welding quality, this makes rustless steel double-metal
Monolayer carbon steel or stainless steel steel-pipe welding is compared in composite steel tube welding becomes complicated, produces to rustless steel double-metal composite steel tube and increases
Add difficulty.Dilute in a large number in order to avoid the alloying element that occurs at coating and basal body interface in stainless steel composite pipe welding process
Release migration with carbon etc., common method is after matrix or coating weld, then carries out transition at coating with basal body interface
Layer welding, then weld overlay or matrix.
A kind of patent literary composition of Patent No. CN103978280A entitled " stainless steel composite pipe qualification of welding procedure method "
In part, the practice of described soldering stainless steel dual-metal clad steel pipe is using argon arc welding welding transition layer, then using mixing
Gas Ar+CO2(mixed ratio 4：1) protection welding matrix weld seam packed layer and capping layer, finally adopts straight argon gas shielded to weld
Coating packed layer and capping layer, must be to the existing straight-line joint submerged arc welding tube producing equipment side of being transformed using this welding procedure
Can implement.
In a kind of patent document of Patent No. CN103358036A entitled " stainless steel composite pipe welding procedure ", described
The practice of soldering stainless steel dual-metal clad steel pipe be gas shielded weld overlay, then taken over using Manual arc welding and cross
Layer, then matrix is welded using submerged welding process.Because manual electric arc welding welding welding efficiency is low, be not suitable in straight-line joint submerged arc welding tube
Produce application in enormous quantities.Existing straight-line joint submerged arc welding tube producing equipment must be transformed using gas shielded weld overlay simultaneously
Can implement.
In the patent document of Patent No. CN1354061A entitled " stainless steel composite pipe welding method ", described welding
The practice of rustless steel double-metal composite steel tube is using argon arc welding soldering stainless steel coating, is then taken over using Manual arc welding
Cross layer, then matrix is welded using manual electric arc welding.Because manual electric arc welding welding welding efficiency is low, be not suitable in vertical masonry joint submerged-arc welding
Application produced in enormous quantities by pipe.Existing straight-line joint submerged arc welding tube producing equipment must be changed using argon arc welding weld overlay simultaneously
Make and can implement.
Baoji Steel tube Co., Ltd finished ancestor high mountain in 2010《Welded tube》5th phase delivered《Acid medium heavy caliber 2205/Q235
Two-phase stainless steel pipe》Article show, rustless steel double-metal composite steel tube welding adopt argon arc welding weld overlay, adopt
CO2Protection weldering welding matrix.Must be to the existing straight-line joint submerged arc welding tube producing equipment side of being transformed using this welding procedure
Can implement.
Sichuan Petroleum Administration's pipeline welding technique center Yang Xu was in 2008《Welded tube》5th phase delivered《Incoloy
825 alloy+X65 composite tube weldings and welding procedure》Article show, rustless steel double-metal composite steel tube welding adopt argon arc
Weldering weld overlay and matrix.Existing straight-line joint submerged arc welding tube producing equipment must be transformed using this welding procedure can
Implement.
Petrochina the second Construction Company period-luminosity river was in 2015《Welding》3rd phase delivered《15CrMoR (H)+SUS321 is not
Rust composite plate welding》Article show, rustless steel double-metal composite plate adopts manual electric arc welding welding coating and matrix.Due to handss
Work electric arc welding welding efficiency is low, is not suitable for producing application in enormous quantities in straight-line joint submerged arc welding tube.Above-mentioned rustless steel double-metal is multiple
Close steel-pipe welding technique inadaptable with current longitudinal submerged arc welded pipe manufacture equipment used, even if carrying out corresponding equipment renovation
There is common pipeline steel tube and replace frock replacing problem when producing with rustless steel double-metal composite steel tube.
Content of the invention
It is an object of the invention to provide one kind carries out rustless steel double-metal using existing straight-line joint submerged arc welding tube production equipment
The ply-metal submerged welding process of composite steel tube welding.
For achieving the above object, the technical scheme is that：
A kind of ply-metal submerged welding process it is characterised in that：The step of described technique is as follows：
1st, early-stage preparations：(1), bi-metal composite panel：Matrix steel specs：L415Q, thickness 15mm, coating rustless steel
Material specification 316L, thickness 3mm；
(2), welding material：Matrix prewelding selects Φ 3mmCHW50C8 welding wire, and matrix submerged-arc welding selects Φ 4mmH08C welding wire
With SJ101G solder flux, coating submerged-arc welding selection Φ 4mmER309MoL welding wire and CHF601 solder flux；
2nd, parameter setting：(1), bevel for welding size：Ply-metal internal groove depth is 2.0 ± 0.5mm, groove angle
45 ± 2 ° of degree, the outer groove depth 12 ± 0.5mm of ply-metal, 30 ± 2 ° of bevel angle, root face size 4 ± 0.5mm；
(2), welding conditions：Matrix prewelding mixed gas Ar+CO2Mixed ratio 4：1, welding current 700 ± 50A, electric arc
Voltage 22 ± 2V, speed of welding 3.0 ± 0.1m/min, matrix submerged-arc welding first passage adopts double wire hidden arc welding, and a wire bond connects electricity
Stream 700 ± 50A, arc voltage 35 ± 2V, two welding current 550 ± 50A, arc voltage 38 ± 2V, speed of welding 1.4 ±
0.1m/min；Second and third passage of matrix submerged-arc welding all using three submerged-arc weldings, a welding current 700 ± 50A, arc voltage
35 ± 2V, two welding current 550 ± 50A, arc voltage 38 ± 2V, three welding current 550 ± 50A, arc voltage 40 ±
2V, speed of welding 1.4 ± 0.1m/min, coating submerged-arc welding adopt a time double wire hidden arc welding, a welding current 700 ± 50A,
Arc voltage 35 ± 2V, two welding current 550 ± 50A, arc voltage 38 ± 2V, speed of welding 1.4 ± 0.1m/min；
3rd, welding manner：Matrix adopts mixed gas Ar+CO2Protect pre- postwelding, then carry out 3 passage submerged-arc weldings, matrix welds
After the completion of connecing, coating is connect using a time double wire hidden arc welding.
The positive effect of the present invention is：
1st, in the case of not transforming existing straight-line joint submerged arc welding tube production equipment, rustless steel double-metal composite steel tube is carried out
Welding；
2nd, this technique can reduce the input of reforming equipment, can improve common pipeline steel tube again and be combined with rustless steel double-metal
The alternately production of steel pipe；
3rd, this technological operation is simple, production efficiency is high.
Specific embodiment
Further illustrate the specific embodiment of the present invention with reference to embodiment.
Embodiment
Ply-metal submerged welding process is carried out as follows：
First, early-stage preparations
1st, bi-metal composite panel：From model L415Q, the steel of thickness 15mm, as matrix, are advised from model
Lattice 316L, thickness 3mm rustless steel is coating；
2nd, welding wire and solder flux：Matrix prewelding selects Φ 3mmCHW50C8 welding wire, and matrix submerged-arc welding selects Φ 4mmH08C welding wire
With SJ101G solder flux, coating submerged-arc welding selection Φ 4mmER309MoL welding wire and CHF601 solder flux；
2nd, welding manner
1st, matrix prewelding：
(1), matrix prewelding：When matrix carries out prewelding, mixed gas Ar+CO of selection2Middle mixed ratio is 4：1, mix
Close gas flow be 60L/min, rated current 700A during matrix prewelding it is allowed to domain of walker be positive and negative 50A, specified electric arc
, it is allowed to domain of walker is positive and negative 2V, the speed of welding of matrix is 3.0m/min it is allowed to domain of walker is positive and negative 0.1m/ for voltage 22V
min.
(2), matrix submerged-arc welding：Matrix submerged-arc welding will carry out 3 passage submerged-arc weldings altogether, and the first passage adopts mariages submerged arc
Weldering, a wire bond connects rated current 700A it is allowed to domain of walker is positive and negative 50A, and specified arc voltage 35V is it is allowed to domain of walker is
Positive and negative 2V, a speed of welding is 1.4m/min it is allowed to domain of walker is positive and negative 0.1m/min, second and third passage submerged arc welding
Using three submerged arc weldings, it is 700A it is allowed to domain of walker is positive and negative 50A that a wire bond connects rated current, specified arc voltage
It is allowed to domain of walker is positive and negative 2V, it is 550A it is allowed to domain of walker is positive and negative 50A that two wire bonds connect rated current to 35V, specified electricity
Arc voltage is 38V it is allowed to domain of walker is positive and negative 2V, and it is 550A it is allowed to domain of walker is positive and negative that three wire bonds connect rated current
, it is allowed to domain of walker is positive and negative 2V, the speed of welding of second and third passage submerged-arc welding is 1.4m/ for 50A, specified arc voltage 40V
Min is it is allowed to the scope floated is positive and negative 0.1m/min；
2nd, coating welding：Coating welding is connect using a time double wire hidden arc welding, and a wire bond connects rated current 700A it is allowed to float
Dynamic scope is positive and negative 50A, it is allowed to domain of walker is positive and negative 2V, it is 550A that two wire bonds connect rated current to specified arc voltage 35V,
Permission domain of walker is positive and negative 50A, and specified arc voltage is 38V it is allowed to domain of walker is positive and negative 2V, and coating speed of welding is
1.4m/min is it is allowed to range of activity is positive and negative 0.1m/min.
3rd, prescription
After the completion of the every welding of rustless steel double-metal composite plate L415Q/316L (15mm+3mm), its property of welded joint accords with
Close in API 5LD and cover or lining corrosion resisting alloy composite steel tube specification technique requirement.
The above is only the non-limiting embodiment of the present invention, for the person of ordinary skill of the art, not
On the premise of departing from the invention design and not making creative work, some deformation can also be made and improve, these are all
Belong to protection scope of the present invention.
Claims (1)
1. a kind of ply-metal submerged welding process it is characterised in that：The step of described technique is as follows：
(1), early-stage preparations：1. bi-metal composite panel：Matrix steel specs：L415Q, thickness 15mm, coating stainless steel is advised
Lattice 316L, thickness 3mm；
2. welding material：Matrix prewelding select Φ 3mmCHW50C8 welding wire, matrix submerged-arc welding select Φ 4mmH08C welding wire and
SJ101G solder flux, coating submerged-arc welding selects Φ 4mmER309MoL welding wire and CHF601 solder flux；
(2), parameter setting：1. bevel for welding size：Ply-metal internal groove depth is 2.0 ± 0.5mm, bevel angle 45
± 2 °, the outer groove depth 12 ± 0.5mm of ply-metal, 30 ± 2 ° of bevel angle, root face size 4 ± 0.5mm；
2. welding conditions：Matrix prewelding mixed gas Ar+CO2Mixed ratio 4：1, welding current 700 ± 50A, arc voltage 22 ±
2V, speed of welding 3.0 ± 0.1m/min, matrix submerged-arc welding first passage adopts double wire hidden arc welding, welding current 700 ±
50A, arc voltage 35 ± 2V, two welding current 550 ± 50A, arc voltage 38 ± 2V, speed of welding 1.4 ± 0.1m/min；
Second and third passage of matrix submerged-arc welding all using three submerged-arc weldings, a welding current 700 ± 50A, arc voltage 35 ± 2V, two
Silk welding current 550 ± 50A, arc voltage 38 ± 2V, three welding current 550 ± 50A, arc voltage 40 ± 2V, welding speed
Degree 1.4 ± 0.1m/min, coating submerged-arc welding adopts a time double wire hidden arc welding, a welding current 700 ± 50A, arc voltage
35 ± 2V, two welding current 550 ± 50A, arc voltage 38 ± 2V, speed of welding 1.4 ± 0.1m/min；
(3) welding manner：Matrix adopts mixed gas Ar+CO2Protect pre- postwelding, then carry out 3 passage submerged-arc weldings, matrix has welded
Cheng Hou, coating is connect using a time double wire hidden arc welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510331702.2A CN104942414B (en) | 2015-06-16 | 2015-06-16 | A kind of ply-metal submerged welding process |
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| CN201510331702.2A CN104942414B (en) | 2015-06-16 | 2015-06-16 | A kind of ply-metal submerged welding process |
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| CN104942414A CN104942414A (en) | 2015-09-30 |
| CN104942414B true CN104942414B (en) | 2017-03-01 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105171208A (en) * | 2015-10-22 | 2015-12-23 | 中国石油集团渤海石油装备制造有限公司 | Prewelding method of thin-wall longitudinal submerged-arc welded (LSAW) pipes with small bore diameter |
| CN106695079B (en) * | 2017-03-06 | 2019-07-23 | 中国石油大学(华东) | The welding method of composite bimetal pipe |
| CN107442957A (en) * | 2017-07-26 | 2017-12-08 | 南通苏通人防防护设备有限公司 | A kind of ply-metal welding technique |
| CN111745269A (en) * | 2020-07-10 | 2020-10-09 | 首钢集团有限公司 | Double-sided submerged arc welding method for stainless steel composite plate |
| CN113909648B (en) * | 2021-10-09 | 2023-03-31 | 中石化石油机械股份有限公司沙市钢管分公司 | Welding method of straight-seam bimetal composite pipe |
| CN113770662B (en) * | 2021-10-16 | 2022-11-08 | 博众不锈钢有限公司 | Method for manufacturing small-caliber bimetal composite welded steel pipe |
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| CN102962563A (en) * | 2012-11-27 | 2013-03-13 | 浙江金洲管道工业有限公司 | Welding process for thin-walled composite steel pipe for pressure container |
| CN103586567A (en) * | 2013-11-14 | 2014-02-19 | 上海沈达空调配件厂（普通合伙） | Method for fusion covering of shaped metal clad plate by adoption of gas shield welding manner |
| CN104607775A (en) * | 2015-01-21 | 2015-05-13 | 鲁西工业装备有限公司 | Automatic submerged arc welding method for nickel alloy composite board |
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| JPH08309527A (en) * | 1995-05-22 | 1996-11-26 | Nkk Corp | Production of clad welded steel pipe |
| JP5521632B2 (en) * | 2009-02-25 | 2014-06-18 | Ｊｆｅスチール株式会社 | Thick steel plate welding method |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2394771A1 (en) * | 2010-06-10 | 2011-12-14 | L'AIR LIQUIDE, Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude | Method for welding high strength steels with basic flux-cored wire |
| CN102962563A (en) * | 2012-11-27 | 2013-03-13 | 浙江金洲管道工业有限公司 | Welding process for thin-walled composite steel pipe for pressure container |
| CN103586567A (en) * | 2013-11-14 | 2014-02-19 | 上海沈达空调配件厂（普通合伙） | Method for fusion covering of shaped metal clad plate by adoption of gas shield welding manner |
| CN104607775A (en) * | 2015-01-21 | 2015-05-13 | 鲁西工业装备有限公司 | Automatic submerged arc welding method for nickel alloy composite board |
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Address after: 434000 Jingzhou, Hubei, Sha District, Beijing East Road, No. 2 Patentee after: SHASHI STEEL PIPE BRANCH OF SINOPEC PETROLEUM MACHINERY CO.,LTD. Address before: 434000 Jingzhou, Hubei, Sha District, Beijing East Road, No. 2 Patentee before: SHASHI STEEL PIPE FACTORY, SINOPEC PETROLEUM ENGINEERING MACHINERY CO.,LTD. |
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Effective date of registration: 20170926 Address after: 434000 Jingzhou, Hubei, Sha District, Beijing East Road, No. 2 Co-patentee after: SINOPEC OILFIELD EQUIPMENT Corp. Patentee after: SHASHI STEEL PIPE BRANCH OF SINOPEC PETROLEUM MACHINERY CO.,LTD. Address before: 434000 Jingzhou, Hubei, Sha District, Beijing East Road, No. 2 Patentee before: SHASHI STEEL PIPE BRANCH OF SINOPEC PETROLEUM MACHINERY CO.,LTD. |
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