CN106825963B - The method of the compound tube end metallurgical weld of bimetallic mechanical - Google Patents
The method of the compound tube end metallurgical weld of bimetallic mechanical Download PDFInfo
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- CN106825963B CN106825963B CN201710122858.9A CN201710122858A CN106825963B CN 106825963 B CN106825963 B CN 106825963B CN 201710122858 A CN201710122858 A CN 201710122858A CN 106825963 B CN106825963 B CN 106825963B
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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
- B23K28/00—Welding or cutting not covered by any of the preceding groups, e.g. electrolytic welding
- B23K28/02—Combined welding or cutting procedures or apparatus
-
- 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
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/06—Resistance welding; Severing by resistance heating using roller electrodes
- B23K11/065—Resistance welding; Severing by resistance heating using roller electrodes for welding curved planar seams
- B23K11/066—Resistance welding; Severing by resistance heating using roller electrodes for welding curved planar seams of tube sections
-
- 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
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/30—Features relating to electrodes
- B23K11/3036—Roller 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
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/34—Preliminary treatment
-
- 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
- B23K9/16—Arc welding or cutting making use of shielding gas
- B23K9/164—Arc welding or cutting making use of shielding gas making use of a moving fluid
-
- 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
- B23K9/16—Arc welding or cutting making use of shielding gas
- B23K9/167—Arc welding or cutting making use of shielding gas and of a non-consumable electrode
-
- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/06—Tubes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Arc Welding In General (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention discloses a kind of methods of the compound tube end metallurgical weld of bimetallic mechanical, comprising: (one) pipe end seam weld is handled；(2) retaining wall on slope process；(3) pipeline butt welding is welded.The process of the compound tube end metallurgical weld of bimetallic mechanical provided by the invention can be realized the metallurgical bonding of mechanical composite tube end using seam weld technology, fundamentally solve the welding problem of mechanical composite tube；Toe crack can be more prevented compared to traditional sealing welding technique for extra, it is good reliability, high-efficient；Complicated end process is not necessarily to compared to emerging pipe end bead-welding technology and consumes a large amount of alloy wlding, is operated more simply, conveniently, and at low cost.
Description
Technical field
The invention belongs to pipeline pressure canister metals welding fields, and in particular, to a kind of compound pipe end of bimetallic mechanical
The method of portion's metallurgical weld.
Background technique
As economic development is to the growing of energy demand, oil-gas field development and Oil & Gas Storage are for aseptic technic and pipe
More stringent requirements are proposed for road material.The tubing of single component is difficult to take into account anti-corrosion, intensity and economy etc., so as to cause
Composite bimetal pipe comes into being.Composite bimetal pipe presses the difference of combination, is divided into metallurgical composite pipe and mechanical composite tube,
Wherein mechanical composite tube is widely used because making simple, cheap and good combination property in today's society.But it is domestic at present
Oil gas field application bimetallic mechanical multiple tube is still in the starting stage, and use scope is limited, and welding technique is still immature.
Bimetallic mechanical multiple tube base is compound using machinery with cladding, and not up to molecule combines, and bond strength is lower, by
It is larger in two kinds of material physical property differences, easily occur to peel off in welding process and break-off, welding difficulty are big.Traditional pipe
End seal Welding is tight for the quality control requirement of soldering and sealing layer although solving the problems, such as that base and cladding peel off and be detached from
Lattice, soldering and sealing layer are also easy to produce brittle tissue and crackle, still cannot fundamentally solve the welding problem of bimetallic mechanical multiple tube.Newly
Emerging pipe end bead-welding technology utilizes metallurgy principle, makes the combination of mechanical composite tube pipe end base tube and bushing pipe by compound turn mechanical
Become molecule combination, stress concentration portion position caused by composite pipe structure and the weak part of butt weld melt run separated,
The generation of crackle is avoided, the difficult point of mechanical composite tube welding is fundamentally solved, substantially increases weld is accepted rate.But it should
Technique increases the consumption and welding workload of corrosion resistant alloy, welding cost is higher due to using pipe end built-up welding.Meanwhile
Weld deposit process frequently can lead to biggish pipe end deformation, increase the butt welding difficulty of subsequent multiple tube.Therefore, seek one kind both to pass through
Ji again reliable welding method be still at this stage bimetallic mechanical multiple tube be eager the big problem solved.
Summary of the invention
To overcome defect of the existing technology, the present invention provides a kind of method of bimetallic mechanical composite tube welding, uses
To solve the disadvantages of deformation of pipe end existing for existing pipe end metallurgical weld technique is small, welding workload is big and welding cost is high,
Welding efficiency is improved, guarantees welding quality.
To achieve the above object, the present invention uses following proposal:
The method of the compound tube end metallurgical weld of bimetallic mechanical, comprising the following steps:
Step 1: pipe end seam weld is handled；
Step 2: retaining wall on slope process；
Step 3: pipeline butt welding is welded.
Compared with prior art, the process of the compound tube end metallurgical weld of bimetallic mechanical of the present invention has
Below the utility model has the advantages that
1, so that bimetallic mechanical multiple tube end liners layer and base has been reached metallurgical bonding, improve between double layer of metal
Binding force, interlayer seal preferably ensure that using resistance seam welding, prevent because impurity penetrate into caused by corrosive pipeline；
2, compared with other advanced sealing welding technique for extra, it is less prone to crackle in welding toe, high reliablity, the used time is few, high-efficient；
3, compared with pipe end bead-welding technology, simple process is at low cost convenient for operating, high-efficient.
Detailed description of the invention
Fig. 1 is the installation diagram of mechanical composite tube electric-resistance seam-welding of the present invention；
Fig. 2 is the groove schematic diagram of the compound tube end metallurgical weld of bimetallic mechanical；
Fig. 3 is bimetallic mechanical composite tube welding process schematic representation；
In figure: 1, mechanical composite tube, 2, seam weld idler wheel, 3, base, 4, liner layer, 5, metallurgical composite layer, 6, root face, 7, weldering
Seam, 8, prime coat, 9, transition zone, 10, filling capping layer.
Specific embodiment
As shown in Figure 1 to Figure 3, the method for the compound tube end metallurgical weld of bimetallic mechanical, comprising the following steps:
Step 1: pipe end seam weld is handled, treatment process is as follows:
101, mechanical composite tube and electric-resistance seam-welding idler wheel cooperation position: the position of mechanical composite tube 1 and two seam weld idler wheels 2 is adjusted
It sets, so that the axle center of three is on same vertical plane, two seam weld idler wheel surfaces are concordant with 1 end face of mechanical composite tube, and two idler wheels 2
It is respectively in pipe and pipe is outer, and base 3 and liner layer 4 are closely clamped, be detailed in Fig. 1；
102, mechanical composite tube end electric-resistance seam-welding: carrying out electric-resistance seam-welding to the end of mechanical composite tube, makes mechanical compound
Tube end base 3 and liner layer 4 reach metallurgical bonding, and forming seam weld width is 10~30mm metallurgy composite layer 5；
Seam weld mode used is step-by-step seam welding, and roller diameter is 150~250mm, and roller widths are 10~20mm；Resistance seam
Weld parameter are as follows: 5~12kA of welding current, weld interval 8~20 weeks, 8~20 weeks cooling times, 0.2~0.8m/ of speed of welding
Min, 18~30KN of electrode pressure, overlapping rate 5%~10%；Two seam weld idler wheels and mechanical composite tube are located always during seam weld
In rotation, upper roller is rotation counterclockwise, and bottom roller and mechanical composite tube are to rotate clockwise；
Step 2: retaining wall on slope process, treatment process are as follows:
201, groove makes: band root face double V-groove, unilateral slope are processed into mechanical composite tube end of the electric-resistance seam-welding after complete
Bicker degree is 30 ° ± 5 °, and 6 perimetric length of root face is 2~5mm, and root face 6 is detailed in Fig. 2 with a thickness of 1.5~3mm；The root face 6 is thick
Degree must not exceed the thickness of liner layer 4；
202, groove cleans: using wire brush and alcohol to being polished and cleaned within the scope of groove and its neighbouring 25cm,
Prevent greasy dirt and the iron rust adverse effect caused by weld seam；
203, groove group pair: retaining wall on slope quality is checked, it is ensured that the intact rear progress groove group of groove and its near zone
Right, groove group is 3~5mm to gap；
Step 3: pipeline butt welding is welded:
Multiple tube mainly includes three parts to welding line 7: prime coat 8, transition zone 9 and filling capping layer 10 are detailed in figure
3, the specific steps are as follows:
301, bottom welding is carried out to composite pipe lining layer 4, forms prime coat 8；It is welded using argon tungsten-arc welding (TIG),
Two-sided protective gas, protective gas are argon (Ar) gas, and wlding is stainless steel or nickel-base alloy bare welding filler metal, used wlding with it is interior
Lining 4 matches；Welding condition are as follows: 75~85A of welding current, 10~15V of weldingvoltage, 8~10cm/ of speed of welding
Min, 0.3~0.6m/min of wire feed rate；Protection air-flow amount: positive 10L/min, reverse side 15L/min；
302, the transition region between mechanical composite tube liner layer 4 and base 3 is welded, forms transition zone 9；Using tungsten
Electrode argon arc welding (TIG) welding, protective gas are argon (Ar) gas, and used wlding is identical as wlding used by prime coat 8, or
Person's wlding higher than the chromium of prime coat wlding, nickel content using chromium, nickel content；Welding condition are as follows: welding current 50-70A,
Weldingvoltage 8-16V, speed of welding 10-15cm/min, wire feed rate 0.2-0.5m/min；Protection air-flow amount: 12L/min；
303, mechanical composite tube base 3 is welded, forms filling capping layer 10；Using welding electrode arc welding or tungsten electrode argon
Arc-welding (TIG) welding, wlding are determined according to the material and operating condition of base 3, general using the identical or ingredient with 3 material of base
Similar welding rod；Welding condition are as follows: welding current 75-90A, weldingvoltage 20-30V, speed of welding 10-15cm/min.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Design is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (1)
1. a kind of method of the compound tube end metallurgical weld of bimetallic mechanical, which comprises the following steps:
Step 1: pipe end seam weld is handled；Its treatment process is as follows:
101, mechanical composite tube and electric-resistance seam-welding idler wheel cooperation position: the position of mechanical composite tube and two electric-resistance seam-welding idler wheels is adjusted
It sets, so that the axle center of three is on same vertical plane, two seam weld idler wheel surfaces are concordant with mechanical composite tube end face, and two idler wheels point
Other places closely clamp base and liner layer in pipe and pipe is outer；
102, mechanical composite tube end electric-resistance seam-welding: electric-resistance seam-welding is carried out to the end of mechanical composite tube, makes mechanical composite tube end
Base, portion and liner layer reach metallurgical bonding, and forming seam weld width is 10~30mm metallurgy composite layer；
Seam weld mode used is step-by-step seam welding, and roller diameter is 150~250mm, and roller widths are 10~20mm；Electric-resistance seam-welding ginseng
Number are as follows: 5~12kA of welding current, weld interval 8~20 weeks, 8~20 weeks, 0.2~0.8m/min of speed of welding cooling time, electricity
Extreme pressure 18~30KN of power, overlapping rate 5%~10%；Two seam weld idler wheels and mechanical composite tube are constantly in certainly during seam weld
Turn, upper roller is rotation counterclockwise, and bottom roller and mechanical composite tube are to rotate clockwise；
Step 2: retaining wall on slope process；Its treatment process is as follows:
201, groove makes: band root face double V-groove, single bevel corner are processed into mechanical composite tube end of the electric-resistance seam-welding after complete
Degree is 30 ° ± 5 °, and root face perimetric length is 2~5mm, and root face height is 1.5~3mm；The root face height must not exceed liner
The thickness of layer；
202, groove cleans: using wire brush and alcohol to being polished and being cleaned within the scope of groove and its neighbouring 25cm, preventing
Greasy dirt and the iron rust adverse effect caused by weld seam；
203, groove group pair: retaining wall on slope quality is checked, it is ensured that the intact rear progress groove group pair of groove and its near zone, slope
Mouth group is 3~5mm to gap；
Step 3: pipeline butt welding is welded；Multiple tube mainly includes three parts to welding line: prime coat, transition zone and filling lid
Surface layer；The specific steps of which are as follows:
301, bottom welding is carried out to composite pipe lining layer, forms prime coat；Using Tig Welding, two-sided protection gas
Body, protective gas are argon gas, and wlding is stainless steel or nickel-base alloy bare welding filler metal, and used wlding matches with liner layer；Weldering
Connect technological parameter are as follows: 75~85A of welding current, 10~15V of weldingvoltage, 8~10cm/min of speed of welding, wire feed rate 0.3
~0.6m/min；Protection air-flow amount: positive 10L/min, reverse side 15L/min；
302, the transition region between mechanical composite tube liner layer and base is welded, forms transition zone；Using tungsten argon arc
Weldering welding, protective gas is argon gas, and used wlding is identical as wlding used by prime coat, or uses chromium, nickel content
The wlding higher than the chromium of prime coat wlding, nickel content；Welding condition are as follows: welding current 50-70A, weldingvoltage 8-16V,
Speed of welding 10-15cm/min, wire feed rate 0.2-0.5m/min；Protection air-flow amount: 12L/min；
303, mechanical composite tube base is welded, forms filling capping layer；Using welding electrode arc welding or tungsten argon shielded arc welding
It connects, wlding is determined according to the material and operating condition of base, general using the similar welding rod of identical or ingredient with base material；Weldering
Connect technological parameter are as follows: welding current 75-90A, weldingvoltage 20-30V, speed of welding 10-15cm/min.
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| CN110144508B (en) * | 2019-05-28 | 2020-12-25 | 中南大学 | Two-stage powder metallurgy preparation method of tungsten/steel bimetal collar material |
| CN111590181A (en) * | 2020-06-23 | 2020-08-28 | 爱美达（深圳）热能系统有限公司 | Resistance welding equipment and welding method of heat pipe |
| CN111590180B (en) * | 2020-06-23 | 2022-02-18 | 爱美达（深圳）热能系统有限公司 | Resistance welding equipment and welding method of heat pipe |
| CN112894193B (en) * | 2021-02-03 | 2022-05-10 | 新疆应用职业技术学院 | Welding method of metal composite plate |
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|---|---|---|---|---|
| CN1184722A (en) * | 1997-12-24 | 1998-06-17 | 章新生 | Flexibly rolled double metal bend, method for producing same, device for rolling internal wall thereof |
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| CN103357998A (en) * | 2012-03-29 | 2013-10-23 | 中国化学工程第四建设有限公司 | Welding method for bimetal composite steel pipes |
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| WO2009126459A2 (en) * | 2008-04-07 | 2009-10-15 | Edison Welding Institute, Inc. | Method of creating a clad structure utilizing a moving resistance energy source |
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|---|---|---|---|---|
| CN1184722A (en) * | 1997-12-24 | 1998-06-17 | 章新生 | Flexibly rolled double metal bend, method for producing same, device for rolling internal wall thereof |
| CN101633074A (en) * | 2009-07-16 | 2010-01-27 | 西安交通大学 | Welding method of girth weld of inner cladding thin-walled stainless steel composite tube |
| CN103357998A (en) * | 2012-03-29 | 2013-10-23 | 中国化学工程第四建设有限公司 | Welding method for bimetal composite steel pipes |
Non-Patent Citations (1)
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