CN106624286B - A kind of manufacturing method of big wall thickness nickel-base alloy/carbon steel stratiform structure composite pipe - Google Patents
A kind of manufacturing method of big wall thickness nickel-base alloy/carbon steel stratiform structure composite pipe Download PDFInfo
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- CN106624286B CN106624286B CN201710083724.0A CN201710083724A CN106624286B CN 106624286 B CN106624286 B CN 106624286B CN 201710083724 A CN201710083724 A CN 201710083724A CN 106624286 B CN106624286 B CN 106624286B
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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
- B23K9/16—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
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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
- B23K9/16—Arc welding or cutting making use of shielding gas
- B23K9/173—Arc welding or cutting making use of shielding gas and of a 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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Abstract
The invention discloses a kind of big wall thickness nickel-base alloy/carbon steel stratiform structure composite pipe manufacturing methods; the manufacturing method of the present invention is designed by using " U+I+V " special type compound bevel; it is successively welded respectively according to the sequencing in pre- solder joint, carbon steel layer, transition zone, nickel base alloy layer deposition area using MAG weldering, SAW weldering and TIG weldering; multiple tube manufacture efficiency and quality can be significantly improved; not only it can guarantee the corrosion resistance of coating nickel-base alloy, but also can ensure that the Strengthening and Toughening requirement of base's carbon steel；Big wall thickness nickel-base alloy of the invention/carbon steel stratiform structure composite pipe weld seam has preferable exterior appearance and excellent mechanical performance index, can be used for the construction of the job facilities such as national acid-soluble oil gas field and chemical industry refinery storage tank.
Description
Technical field:
The invention belongs to big wall thickness layer structure composite pipe manufacturing technology fields, and in particular to a kind of big Ni-based conjunction of wall thickness
Gold/carbon steel stratiform structure composite pipe manufacturing method.
Background technique:
Nickel-base alloy/carbon steel stratiform structure composite tubing, have excellent interface bond strength, can avoid very well layering,
Collapse and other issues；It is able to satisfy strong corrosive media storage and transportation service condition requirement, realizes that the advantage of material is mutual to the maximum extent
It mends, significantly reduces pipe-line construction cost, improve pipeline corrosion resistance and security reliability.To effectively solve China's Tarim Oilfield,
Each elephants such as Changqing oilfields, southwestern oil field are due to " four high one is low " (i.e. high CO2, high H2S, high Cl-, high salinity, low pH value)
The problems such as warehousing and transportation facilities corrosion failure occurred in caused crude oil transmission and refinery, mentions for national oil-gas mining and pipeline network construction
For support.
Nickel-base alloy/carbon steel stratiform structure composite tubing, mechanical performance (including tensile property, low-temperature impact toughness, DWTT
Performance etc.) mainly contributed by outer layer carbon steel, and nickel-base alloy mainly serve it is anticorrosive.The country is generally adopted about multiple tube at present
Pipe-making method have centrifugal casting, cold working diffusion annealing, Hydraulic expansion, Explosion composite, Explosion composite+welding, hot piercing+
It spreads compound etc..
The publication No. that on October 16th, 2013 announces is the Chinese invention patent of CN 103350124A, patent name one
The manufacturing method of the vertical masonry joint bimetallic composite welded pipe of kind of transfer oil natural gas, the manufacturing method are as follows: by cladding be corrosion resistant alloy
Layer and base are that carbon steel combined ply-metal in a manner of " explosion+hot rolling " is shaped to by JCOE moulding process
Finally by welding procedure the vertical masonry joint bimetallic composite welded pipe of cladding outside in interior base is made in straight seam welding by vertical masonry joint tubulose；
The combined ply-metal of " explosion+hot rolling " mode, realizes the metallurgical bonding of laminated composite plate, the present invention is mainly
For the manufacture of nickel-base alloy/carbon steel stratiform structure composite tubing, due at nickel-base alloy and its weld seam, transition interface to main
The component amount of corrosion resistant metal element Ni, Cr, Mo have strict demand, and the dilution of alloying element and scaling loss are urgently to be resolved in welding
Engineering problem.The design of cut described in the above-mentioned manufacturing method announced and welding procedure are not suitable for the present invention.
Summary of the invention:
In order to overcome the above technical problems, the object of the present invention is to provide a kind of big wall thickness nickel-base alloy/carbon steel stratiform knots
The manufacturing method of structure multiple tube, using the manufacturing method of the present invention can Shi Ge deposition area metal transfer melting welding quality of connection it is reliable,
The component amount that main corrosion resistant metal element Ni, Cr, Mo can be effectively controlled makes weld seam have reliable corrosion resisting property and superior mechanical
Energy.
In order to solve the above-mentioned technical problem, a kind of the technical solution adopted by the present invention are as follows: big wall thickness nickel-base alloy/carbon steel layer
The manufacturing method of shape structure composite pipe, it is characterised in that: nickel base alloy layer and carbon steel layer are passed through into " vacuum hot rolling+heat treatment " side
Formula is prepared into metallurgical stratiform composite sheet structure；Then the processing of " U+I+V " cut is carried out to two longitudinal edge of composite plate；It is more using JCO again
Passage is progressive to be pressed into tubulose, and nickel base alloy layer is on the inside of pipe, and carbon steel layer is on the outside of pipe；Finally existed using reasonable welding procedure
Carbon steel layer, transition zone and nickel base alloy layer welding are carried out at cut, and nickel-base alloy/carbon steel stratiform structure composite pipe is made.
Above-mentioned nickel base alloy layer is the Ni-Cr-Fe Al-Cu corrosion-resistant high temperature alloy of UNS N08825, UNS N06625 or homologous series,
Nickel base alloy layer with a thickness of 2~4mm；Carbon steel layer is Q235, Q345, X52, X60, X65, X70, X80, X90 or X100 carbon
Structural steel, pressure vessel steel and high-strength and high ductility pipe line steel, with a thickness of 18~30mm.
The parameter of above-mentioned " U+I+V " groove are as follows: nickel base alloy layer side is U-typed groove, and width is 5~12mm, depth
For 4~6mm, and depth is greater than nickel base alloy layer thickness；Carbon steel layer side is " I+V " type groove, and bevel angle is 60~80 °,
Width is 13~23mm, and depth is 4~10mm, and root face is 5~15mm.
Said welding method is: first carrying out carbon steel layer welding using SAW weldering, forms carbon steel layer deposition area；It is welded again using TIG
Transition zone welding is carried out, transition zone deposition area is formed；Cover welding, shape are finally filled to nickel base alloy layer using TIG weldering
At nickel base alloy layer deposition area.
The thickness in above-mentioned transition zone deposition area is concordant with nickel base alloy layer/carbon steel layer interface or exceeds 0~1.0mm, and
Carbon steel layer is completely covered.
Above-mentioned carbon steel layer, transition zone and nickel base alloy layer welding overall process be all made of inert gas to weld metal zone and near
Region adequately protects.
Carbon steel layer first uses MAG weldering to carry out prewelding on the outside of pipe before carrying out carbon steel layer welding in said welding method.
Beneficial effects of the present invention:
The present invention is logical to be designed using " U+I+V " special type compound bevel, is successively pressed respectively using MAG weldering, SAW weldering and TIG weldering
It is welded according to the sequencing in pre- layer, carbon steel layer, transition zone, nickel base alloy layer deposition area, compound control can be significantly improved
Efficiency is made, not only can guarantee the corrosion resistance of coating nickel-base alloy, but also can ensure that the Strengthening and Toughening requirement of base's carbon steel, having weld seam can
The welding quality leaned on and excellent comprehensive mechanical property.
Detailed description of the invention:
A specific embodiment of the invention is described in further detail with reference to the accompanying drawing.
Fig. 1 is the big wall thickness nickel-base alloy/carbon steel stratiform structure composite pipe structural schematic diagram of the present invention.
Fig. 2 is the partial enlarged view that multiple tube completes whole weld seam after welding in Fig. 1.
Fig. 3 is transition interface microcell microscopic structure.
Description of symbols: 1 is carbon steel layer；2 be nickel base alloy layer；3 be multiple tube entirety weld seam；4 be carbon steel layer deposition
Area；5 be transition zone deposition area；6 be nickel base alloy layer deposition area.
Specific embodiment:
Referring to Fig. 1, the big wall thickness UNS N08825/X65 nickel-base alloy/pipe prepared with " vacuum hot rolling+heat treatment " technique
Line steel layer shape structure composite plate is experimental raw plate, and 2 one side of UNS N08825 nickel base alloy layer is in upper, X65 carbon steel layer 1 one
Face is under, and the rear manufacture for carrying out multiple tube such as cleaning sheet material double face sundries, lump, step is successively are as follows:
Step 1: multiple to UNS N08825/X65 nickel-base alloy/pipe line steel layer structure according to groove design form in Fig. 1
Plywood material carries out welding characteristic retaining wall on slope, and the U-typed groove depth and width of UNS N08825 nickel base alloy layer 2 are respectively
5.5mm and 11mm, and groove bottom is arc-shaped；" I+V " type groove width, depth, angle and the root face of X65 carbon steel layer 1 point
It Wei not 20mm, 12mm, 80 ° and 10mm.
Step 2: being pressed into tubulose using JCO multi-pass is progressive, while MAG pre-welding, shape are carried out to the outer groove of carbon steel layer 1
At pre- layer MAG deposition area.
Step 3: the pre- postwelding of forming to be done is that 1 side of X65 carbon steel layer integrally uses SAW to weld from steel pipe outside, is formed
Carbon steel layer deposition area 4；It is air-cooled to room temperature after carbon steel layer deposition area 4 completes welding, from UNS N08825 nickel base alloy layer side
The processing of groove back chipping is carried out to U-typed groove, makes the arc-shaped transition of groove bottom, groove near zone is polished and is used in combination
Acetone and ethyl alcohol are entirely cleaned and are dried up rapidly；Then transition zone welding is carried out using TIG weldering, forms transition zone deposition area
5；TIG filling, the cosmetic welding for finally carrying out UNS N08825 nickel base alloy layer 2, form nickel base alloy layer deposition area 6.
For welding condition as shown in the following table 1,2,3, Weld Performance is as shown in table 4:
1 MAG welding parameter of table
2 SAW welding parameter of table
3 transition zone of table and cladding welding parameter
4 Weld Performance test result of table
The reduction of main corrosion resistant alloy element Ni, Cr, Mo content of nickel base alloy layer and carbon steel layer transition zone is to cause
The principal element that weld corrosion resistance can weaken.Solution of the invention be using small heat input, low_input_power TIG soldering method into
The welding of row transition zone reduces welding high temperature complexity metallurgy action to Microstructure characteristics and Ni, Cr, Mo in the microcell of interface as far as possible
The influence of elements diffusion migration, makes transition interface microcell structural homogenity improve (as shown in Figure 3), and alloying element diluting effect subtracts
It is weak.By to interface microcell alloying element scanning analysis, it is found that it is micro- the content of main corrosion resistant alloy element Ni, Cr, Mo have occurred
Small variation, but it is faint on the corrosion proof influence of weld seam, Intergranular Corrosion of Austenitic Stainless Steel susceptibility " is detected according to ASTM 262
Standard implementation specification " method E to multiple tube coating weld seam carry out Huey test, do not occur after bending cracking or crackle, root
" the resistance to pitting corrosion of stainless steel and its alloy and the mark of cracking resistance mouth corrosion test are done using liquor ferri trichloridi according to ASTM G48
Quasi- method " method A to multiple tube coating weld seam carry out pitting test, as a result fully meet relevant criterion requirement, multiple tube weld seam
Still there is excellent and reliable corrosion resistance.
To sum up, can to obtain good mechanical performance, corrosion resistance using manufacturing method disclosed by the invention reliably big
Wall thickness nickel-base alloy/carbon steel stratiform structure composite pipe product.
The present invention is suitable for heavy caliber (diameter >=508mm), thin cladding (cladding thickness≤4mm), big wall thickness (18mm≤wall
Thickness≤30mm) nickel-base alloy/engineering of carbon steel stratiform structure composite tubing, mass production, have very high practical valence
Value.
The above content is combine specific preferred embodiment further detailed description of the invention, and it cannot be said that
A specific embodiment of the invention is only limitted to this, for those of ordinary skill in the art to which the present invention belongs, is not taking off
Under the premise of from present inventive concept, several simple deductions, replacement or transformation for making etc. all shall be regarded as belonging to the present invention and mentioned
Claims of friendship determine scope of patent protection.
Claims (1)
1. a kind of big wall thickness nickel-base alloy/carbon steel stratiform structure composite pipe manufacturing method, it is characterised in that: by nickel base alloy layer
(2) and carbon steel layer (1) by " vacuum hot rolling+heat treatment " mode is prepared into metallurgical stratiform composite sheet structure；Then to composite plate
Two longitudinal edges carry out the processing of " U+I+V " cut；It is pressed into tubulose using JCO multi-pass is progressive again, nickel base alloy layer (2) is in pipe
Side, carbon steel layer (1) is on the outside of pipe；Carbon steel layer, transition zone and Ni-based conjunction are finally carried out at cut using reasonable welding procedure
Layer gold welding, is made nickel-base alloy/carbon steel stratiform structure composite pipe；The nickel base alloy layer (2) is UNS N08825, Ni-based conjunction
Layer gold with a thickness of 2~4mm；The carbon steel layer (1) is X65, with a thickness of 18~30mm；The parameter of " U+I+V " groove are as follows:
Nickel base alloy layer (2) side is that U-typed groove, width 11mm, depth 5.5mm, and depth are greater than nickel base alloy layer (2) thickness
Degree；Carbon steel layer (1) side is " I+V " type groove, and bevel angle is 80 °, width 20mm, depth 12mm, root face 10mm；
The welding procedure are as follows: carbon steel layer (1) welding is carried out using SAW weldering first, is formed carbon steel layer deposition area (4)；It is welded again using TIG
Transition zone welding is carried out, is formed transition zone deposition area (5)；Cosmetic welding is finally filled to nickel base alloy layer (2) using TIG weldering
It connects, is formed nickel base alloy layer deposition area (6)；The thickness in transition zone deposition area (5) and nickel base alloy layer/carbon steel layer interface
Concordantly or exceed 0~1.0mm, and carbon steel layer (1) is completely covered；The carbon steel layer, transition zone and nickel base alloy layer weld complete
Process is all made of inert gas and adequately protects to weld metal zone and near zone；Carry out carbon steel layer (1) welding before on the outside of pipe carbon
Steel layer (1) first carries out prewelding using MAG weldering, the parameter for carrying out prewelding is welded using MAG are as follows: wlding H08Mn2SiA, gage of wire
3.2mm, arc voltage 20.5-23.5V, electric current 540-660A, wire feed rate 80-103inch/min, speed of welding 2.25-
2.75m/min, 100~120L/min of gas flow, ratio of gas mixture: Ar:75%~85%, CO2: 15%~25%；It adopts
Carries out the parameter of carbon steel layer (1) welding with SAW weldering are as follows: the diameter of 1# welding wire is 4.8mm, electric current 1260-1530A, and voltage is
32-36V, speed of welding 0.99-1.21m/min, maximum heat input are 3.0KJ/mm；The diameter of 2# welding wire is 4.0mm, electric current
For 630-770A, voltage 34-38V, speed of welding 0.99-1.21m/min, maximum heat input is 1.6KJ/mm；3# welding wire
Diameter be 3.2mm, electric current 380-460A, voltage 33-37V, speed of welding 0.99-1.21m/min, maximum heat input
For 0.93KJ/mm；1#, 2# and 3# welding wire are all made of BG-H08E, and solder flux is SJ101G；It is welded using TIG and carries out transition zone and lid
The welding parameter of face filling weldering are as follows: welding wire uses ERNiCrMo-3, gage of wire 1.2mm, voltage 10-15V, and electric current is
150-200A, speed of welding 60-100mm/min, gas flow 15-20L/min.
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| CN108856288A (en) * | 2018-05-04 | 2018-11-23 | 太原科技大学 | A kind of corrosion resistant structural steel production method |
| CN108788099A (en) * | 2018-05-04 | 2018-11-13 | 太原科技大学 | A kind of corrosion resistance structure steel short-flow production method |
| CN108526662B (en) * | 2018-06-27 | 2020-06-23 | 中国化学工程第三建设有限公司 | Back-surface-free argon-filling welding method for X groove of large-diameter nickel-based composite pipe |
| CN110280888B (en) * | 2019-06-21 | 2020-10-09 | 江西理工大学 | Waste liquid treatment tank and processing method thereof |
| CN111659980A (en) * | 2020-03-31 | 2020-09-15 | 南京钢铁股份有限公司 | Nickel-based high-corrosion-resistance composite steel pipe welding method |
| CN116690128B (en) * | 2023-08-09 | 2023-10-13 | 成都先进金属材料产业技术研究院股份有限公司 | Low-alloy high-strength steel-high-temperature alloy bimetal composite pipe and preparation method thereof |
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| JPH08267248A (en) * | 1995-03-30 | 1996-10-15 | Kubota Corp | Method for butt welding of clad pipe |
| CN104455761A (en) * | 2014-11-21 | 2015-03-25 | 宝鸡石油钢管有限责任公司 | Nickel-based alloy and carbon steel metallurgical bonding composite welded tube and manufacturing method thereof |
| CN105014207B (en) * | 2015-07-08 | 2017-04-12 | 宝鸡石油钢管有限责任公司 | Vanadium/copper solid solution transition connection-based welding process for titanium-containing metal layer/pipeline steel layer composite board |
| CN105921545A (en) * | 2016-05-27 | 2016-09-07 | 宝鸡石油钢管有限责任公司 | Manufacturing method of pure titanium or titanium alloy/carbon steel laminar composite welded pipe |
| CN106392272A (en) * | 2016-11-18 | 2017-02-15 | 江苏双良锅炉有限公司 | Y-shaped groove back-chipping-free submerged-arc welding technology for moderately thick plate in boiler and pressure container |
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