CN106624286A - Manufacturing method of large-wall-thickness nickel-base alloy/carbon steel laminated structure composite pipe - Google Patents
Manufacturing method of large-wall-thickness nickel-base alloy/carbon steel laminated structure composite pipe Download PDFInfo
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- CN106624286A CN106624286A CN201710083724.0A CN201710083724A CN106624286A CN 106624286 A CN106624286 A CN 106624286A CN 201710083724 A CN201710083724 A CN 201710083724A CN 106624286 A CN106624286 A CN 106624286A
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- carbon steel
- base alloy
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- composite pipe
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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
- B23K9/16—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
- 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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- Engineering & Computer Science (AREA)
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Abstract
The invention discloses a manufacturing method of a large-wall-thickness nickel-base alloy/carbon steel laminated structure composite pipe. The manufacturing method comprises the steps that the 'U+I+V' special composite groove design is adopted, MAG welding, SAW welding and TIG welding are adopted for carrying out welding respectively according to the sequence of a prewelding point, a carbon steel layer, a transition layer and a nickel-base alloy layer deposited area, the manufacturing efficiency and quality of the composite pipe can be remarkably improved, the corrosion resistance of the coating layer nickel-base alloy can be ensured, and the strengthening and toughening requirements of the base layer carbon steel can also be met. A weld joint of the large-wall-thickness nickel-base alloy/carbon steel laminated structure composite pipe has the good appearance and excellent mechanical performance indexes, and the large-wall-thickness nickel-base alloy/carbon steel laminated structure composite pipe can be used for building of engineering facilities such as national acid oil and gas fields and chemical refining storage tanks.
Description
Technical field：
The invention belongs to big wall thickness layer structure composite pipe manufacturing technology field, and in particular to a kind of Ni-based conjunction of big wall thickness
The manufacture method of gold/carbon steel stratiform structure composite pipe.
Background technology：
Nickel-base alloy/carbon steel stratiform structure composite tubing, with excellent interface bond strength, can avoid very well layering,
The quality problems such as subside；Strong corrosive media accumulating service condition requirement can be met, realize that the advantage of material is mutual to greatest extent
Mend, significantly reduce pipe-line construction cost, improve pipeline corrosion resistance and security reliability.By effectively solving China 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 the crude oil transmission for causing and refinery, be that national oil-gas mining and pipeline network construction are carried
For supporting.
Nickel-base alloy/carbon steel stratiform structure composite tubing, mechanical performance is (including tensile property, low-temperature impact toughness, DWTT
Performance etc.) mainly contributed by outer layer carbon steel, and nickel-base alloy acts primarily as anticorrosive effect.At present the country generally adopts with regard to multiple tube
Pipe-making method have spun casting, cold working diffusion annealing, Hydraulic expansion, Explosion composite, Explosion composite+welding, hot piercing+
Spread compound etc..
The publication No. that on October 16th, 2013 announces is the Chinese invention patent of CN 103350124A, and patent name is one
The manufacture method of the vertical masonry joint bimetallic composite welded pipe of transfer oil natural gas is planted, the manufacture method is：It is corrosion resistant alloy by cladding
Layer and basic unit are shaped to the ply-metal that " blast+hot rolling " mode is combined together for carbon steel by JCOE moulding process
Vertical masonry joint tubulose, cladding vertical masonry joint bimetallic composite welded pipe in interior basic unit outside is made finally by welding procedure by straight seam welding；
The ply-metal that " blast+hot rolling " mode is combined together, realizes the metallurgical binding of laminated composite plate, and 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 has strict demand, and the dilution of alloying element and scaling loss are urgently to be resolved hurrily in welding
Engineering problem.Cut design and welding procedure described in the above-mentioned manufacture method announced is not suitable for the present invention.
The content of the invention：
In order to overcome above-mentioned technical problem, it is an object of the invention to provide a kind of big wall thickness nickel-base alloy/carbon steel stratiform knot
The manufacture method of structure multiple tube, using the present invention manufacture method can Shi Ge depositions area metal transfer melting welding quality of connection reliability,
Can effective control main corrosion resistant metal element Ni, Cr, Mo component amount, make weld seam that there is reliable corrosion resisting property and superior mechanical
Energy.
In order to solve above-mentioned technical problem, the technical solution used in the present invention is：A kind of big wall thickness nickel-base alloy/carbon steel layer
The manufacture method of shape structure composite pipe, it is characterised in that：By nickel base alloy layer and carbon steel layer by " 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 the longitudinal edge of composite plate two；It is many using JCO again
Passage is progressive to be pressed into tubulose, and on the inside of pipe, carbon steel layer is on the outside of pipe for nickel base alloy layer；Finally existed using rational welding procedure
The welding of carbon steel layer, transition zone and nickel base alloy layer is carried out at cut, nickel-base alloy/carbon steel stratiform structure composite pipe is made.
Above-mentioned nickel base alloy layer is UNS N08825, UNS N06625 or isonomic Ni-Cr-Fe Al-Cu corrosion-resistant high temperature alloys,
The thickness of nickel base alloy layer is 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, thickness is 18～30mm.
The parameter of above-mentioned " U+I+V " groove is：Nickel base alloy layer side be " U " type groove, width be 5～12mm, depth
For 4～6mm, and depth is more 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 carbon steel layer welding is carried out using SAW welderings, form carbon steel layer deposition area；Welded using TIG again
Transition zone welding is carried out, transition zone deposition area is formed；Finally cover welding, shape are filled to nickel base alloy layer using TIG welderings
Into nickel base alloy layer deposition area.
The thickness in above-mentioned transition zone deposition area is concordant with the interface of nickel base alloy layer/carbon steel layer or beyond 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 using inert gas to weld metal zone and near
Region adequately protects.
The carbon steel layer on the outside of pipe is carried out before carbon steel layer welding in said welding method first carries out prewelding using MAG welderings.
Beneficial effects of the present invention：
The present invention is logical using the design of " U+I+V " special type compound bevel, is pressed successively respectively using MAG welderings, SAW welderings and TIG welderings
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, the corrosion resistance of coating nickel-base alloy has both been can guarantee that, the Strengthening and Toughening that basic unit's carbon steel is can ensure that again requires that having weld seam can
The welding quality leaned on and excellent comprehensive mechanical property.
Description of the drawings：
The specific embodiment of the present invention is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is the big wall thickness nickel-base alloy/carbon steel stratiform structure composite tubular construction schematic diagram of the present invention.
Fig. 2 is the partial enlarged drawing of multiple tube overall weld seam after completing to weld in Fig. 1.
Fig. 3 is transition interface microcell microscopic structure.
Description of reference numerals：1 is carbon steel layer；2 is nickel base alloy layer；3 is multiple tube entirety weld seam；4 is carbon steel layer deposition
Area；5 is transition zone deposition area；6 is nickel base alloy layer deposition area.
Specific embodiment：
Referring to Fig. 1, with big wall thickness UNS N08825/X65 nickel-base alloys/pipe prepared by " vacuum hot rolling+heat treatment " technique
Line steel layer shape structure composite sheet material is experimental raw sheet material, and the one side of UNS N08825 nickel base alloy layers 2 is in upper, X65 carbon steel layers 1 one
Under, clearing up carries out the manufacture of multiple tube after sheet material double face debris, lump etc. in face, and step is followed successively by：
Step 1：It is multiple to UNS N08825/X65 nickel-base alloys/pipe line steel layer structure according to groove design form in Fig. 1
Plywood material carries out welding characteristic retaining wall on slope, and " U " the type groove depth and width of UNS N08825 nickel base alloy layers 2 are respectively
5.5mm and 11mm, and groove bottom is arc-shaped；" I+V " type groove widths of X65 carbon steel layers 1, depth, angle and root face point
Wei not 20mm, 12mm, 80 ° and 10mm.
Step 2：Tubulose is pressed into using JCO multi-pass is progressive, while carrying out MAG pre-weldings, shape to the outer groove of carbon steel layer 1
Into pre- layer MAG depositions area.
Step 3：It is to be done to shape pre- postwelding, it is that the side of X65 carbon steel layers 1 is integrally welded using SAW from steel pipe outside, formed
Carbon steel layer deposition area 4；Room temperature is air cooled to after carbon steel layer deposition area 4 completes welding, from UNS N08825 nickel base alloy layers side
Groove back chipping process is carried out to " U " type groove, makes groove bottom be arc-shaped transition, groove near zone is polished and is used in combination
Acetone and ethanol are entirely cleaned and dried up rapidly；Then transition zone welding is carried out using TIG welderings, forms transition zone deposition area
5；TIG fillings, the cosmetic welding of UNS N08825 nickel base alloy layers 2 are finally carried out, nickel base alloy layer deposition area 6 is formed.
Welding condition is as shown in table 1 below, 2,3, and Weld Performance is as shown in table 4：
The MAG welding parameters of table 1
The SAW welding parameters of table 2
The transition zone of table 3 and cladding welding parameter
The Weld Performance test result of table 4
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.The solution of the present invention is entered using little heat input, low_input_power TIG soldering methods
Row transition zone is welded, and welding high temperature complexity metallurgy action is reduced as far as possible to Microstructure characteristics and Ni, Cr, Mo in the microcell of interface
The impact 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.There occurs by the content to interface microcell alloying element scanning analysis, discovery main corrosion resistant alloy element Ni, Cr, Mo micro-
Little change, but impact corrosion proof on weld seam is faint, according to ASTM 262《Detection Intergranular Corrosion of Austenitic Stainless Steel susceptibility
Standard implementation specification》Method E carries out Huey test to multiple tube coating weld seam, and cracking or crackle, root do not occur after bending
According to ASTM G48《Resistance to pitting corrosion and the mark of cracking resistance mouth corrosion test of stainless steel and its alloy are done using liquor ferri trichloridi
Quasi- method》Method A carries out pitting test to multiple tube coating weld seam, as a result fully meets relevant criterion requirement, multiple tube weld seam
Still there is excellent and reliable corrosion resistance.
To sum up, good mechanical performance, decay resistance can be obtained using manufacture 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/carbon steel stratiform structure composite tubing engineering, mass production, with very high practical valency
Value.
Above content is to combine specific preferred embodiment further description made for the present invention, it is impossible to assert
The specific embodiment of the present invention is only limitted to this, for general technical staff of the technical field of the invention, is not taking off
On the premise of present inventive concept, some simple deduction, replacement or conversion for making etc. should all be considered as belonging to the present invention and be carried
Claims of friendship determine scope of patent protection.
Claims (7)
1. the manufacture method of a kind of big wall thickness nickel-base alloy/carbon steel stratiform structure composite pipe, it is characterised in that：By nickel base alloy layer
And carbon steel layer (1) is prepared into metallurgical stratiform composite sheet structure by " vacuum hot rolling+heat treatment " mode (2)；Then to composite plate
Two longitudinal edges carry out the processing of " U+I+V " cut；Again tubulose is pressed into using JCO multi-pass is progressive, nickel base alloy layer (2) is in pipe
Side, carbon steel layer (1) is on the outside of pipe；Finally carbon steel layer, transition zone and Ni-based conjunction are carried out at cut using rational welding procedure
Layer gold is welded, and makes nickel-base alloy/carbon steel stratiform structure composite pipe.
2. the manufacture method of big wall thickness nickel-base alloy according to claim 1/carbon steel stratiform structure composite pipe, its feature exists
In：The nickel base alloy layer (2) is UNS N08825, UNS N06625 or isonomic Ni-Cr-Fe Al-Cu corrosion-resistant high temperature alloys, nickel
The thickness of based alloy layer is 2～4mm；The carbon steel layer (1) is Q235, Q345, X52, X60, X65, X70, X80, X90 or X100
Carbon structural steels, pressure vessel steel or high-strength and high ductility pipe line steel, thickness is 18～30mm.
3. the manufacture method of big wall thickness nickel-base alloy according to claim 1 and 2/carbon steel stratiform structure composite pipe, it is special
Levy and be：The parameter of " U+I+V " groove is：Nickel base alloy layer (2) side is " U " type groove, and width is 5～12mm, deep
Spend for 4～6mm, and depth is more than nickel base alloy layer (2) thickness；Carbon steel layer (1) 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.
4. the manufacture method of big wall thickness nickel-base alloy according to claim 3/carbon steel stratiform structure composite pipe, its feature exists
In：The welding procedure is：Carbon steel layer (1) welding is carried out initially with SAW welderings, carbon steel layer deposition area (4) is formed；Adopt again
TIG welderings carry out transition zone welding, form transition zone deposition area (5)；Finally nickel base alloy layer (2) is filled using TIG welderings
Cover welding, forms nickel base alloy layer deposition area (6).
5. the manufacture method of big wall thickness nickel-base alloy according to claim 4/carbon steel stratiform structure composite pipe, its feature exists
In：The thickness of the transition zone deposition area (5) is concordant with the interface of nickel base alloy layer/carbon steel layer or beyond 0～1.0mm and complete
All standing carbon steel layer (1).
6. the manufacture method of big wall thickness nickel-base alloy according to claim 4/carbon steel stratiform structure composite pipe, its feature exists
In：The overall process of the carbon steel layer, transition zone and nickel base alloy layer welding is using inert gas to weld metal zone and near zone
Adequately protect.
7. the manufacture method of big wall thickness nickel-base alloy according to claim 4/carbon steel stratiform structure composite pipe, its feature exists
In：Carry out carbon steel layer (1) welding before on the outside of pipe carbon steel layer (1) first using MAG weldering carry out prewelding.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108526662A (en) * | 2018-06-27 | 2018-09-14 | 中国化学工程第三建设有限公司 | A kind of Ni-based multiple tube X grooves of heavy caliber exempt from back side argon filling welding 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 |
| CN108856288A (en) * | 2018-05-04 | 2018-11-23 | 太原科技大学 | A kind of corrosion resistant structural steel production method |
| 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 |
| WO2020253007A1 (en) * | 2019-06-21 | 2020-12-24 | 江西理工大学 | Waste liquid treatment tank and machining method therefor |
| CN116690128A (en) * | 2023-08-09 | 2023-09-05 | 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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| 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 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN108856288A (en) * | 2018-05-04 | 2018-11-23 | 太原科技大学 | A kind of corrosion resistant structural steel production method |
| CN108526662A (en) * | 2018-06-27 | 2018-09-14 | 中国化学工程第三建设有限公司 | A kind of Ni-based multiple tube X grooves of heavy caliber exempt from back side argon filling welding 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 |
| WO2020253007A1 (en) * | 2019-06-21 | 2020-12-24 | 江西理工大学 | Waste liquid treatment tank and machining method therefor |
| 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 |
| CN116690128A (en) * | 2023-08-09 | 2023-09-05 | 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 |
| 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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