CN106001956A - Manufacturing method of titanium/steel layered compound welded pipe - Google Patents
Manufacturing method of titanium/steel layered compound welded pipe Download PDFInfo
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- CN106001956A CN106001956A CN201610363788.1A CN201610363788A CN106001956A CN 106001956 A CN106001956 A CN 106001956A CN 201610363788 A CN201610363788 A CN 201610363788A CN 106001956 A CN106001956 A CN 106001956A
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- titanium
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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
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
- B23K31/027—Making tubes with soldering or welding
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Abstract
The invention discloses a manufacturing method of a titanium/steel layered compound welded pipe. According to the manufacturing method, the design of a compound special-shaped groove formed by an upright large-trapezoid-shaped groove and an inverted small-trapezoid-shaped groove is adopted; and MAG welding, cold spraying and TIG welding are adopted for conducting welding in the sequence of a carbon steel layer, a Cu spraying layer, a V spraying layer and a TIG deposition area of a pure titanium or titanium alloy layer. The thickness of the Cu spraying layer and the V spraying layer is controlled, so that the problem of fusion welding connection between the pure titanium or titanium alloy layer and a carbon steel material is solved; diffusive mutual dissolution among Ti, Fe and Cu is successfully hindered; generation of a brittle phase is avoided; the volume ratio of a solid solution in weld joints to a mixed solid solution area is reduced to the greatest extent; corrosion resistance of the pure titanium or titanium alloy layer is guaranteed; and the strengthening and toughening requirement of base layer carbon steel is guaranteed. The manufacturing method is applicable to the fields of machinery and chemical engineering, sea water desalination, vacuum evaporation, power plant desulfurization and oil gas storage and transportation.
Description
Technical field:
The invention belongs to lamellar composite sealing of tube technical field, be specifically related to a kind of titanium/steel layer shape composite welded pipe
Manufacture method.
Background technology:
Etching problem has badly influenced social development and human security, and corrosion is to cause petroleum and petrochemical industry
Equipping one of principal element of inefficacy, Frequent Accidents, China's oil and gas pipes need to change pipeline because of corrosion every year
400km；Cause great material loss and waste.
Titanium/steel layer shape composite welded pipe, with excellent combination property, is widely used in mechanical chemical industry, sea water light
The fields such as change, vacuum evaporation, power plant desulfurization and Oil & Gas Storage.But the welding of titanium/steel composite material is still deposited
In problems.Due to titanium have relatively extensive chemical activity, easily absorb in welding harmful gas (O, N and
H), easily generate intermetallic compound phase TiFe of continuous distribution with the element interaction such as Fe, C, TiFe2 with
Frangible TiC phase, affects Weld Performance.It is known that due to the immiscible property of the metallurgy of titanium and steel, directly
It is infeasible for connecing melting welding for the welding of titanium/steel composite material.To this end, researchers use multiple side
Method, has carried out fruitful research, also achieves effective connection of titanium and steel or stainless steel.
The present invention is different from other composite pipes, especially in composite material, special type bevel design, transition
Material and mode and new welding technology aspect are original and different.Titanium/steel layer shape composite welded pipe, mechanical performance (bag
Include tensile property, low-temperature impact toughness, DWTT performance, bead bend performance etc.) main by outer layer carbon
Steel is contributed, and pure titanium or titanium alloy layer act primarily as anticorrosive effect.Current domestic multiple tube typically uses
Pipe-making method has spun casting, cold working diffusion annealing, Hydraulic expansion, Explosion composite, diffusion to be combined.
The Chinese invention patent that publication No. is CN 103350124 A that on October 16th, 2013 announces, specially
The manufacture method of the vertical masonry joint bimetallic composite welded pipe of the entitled a kind of transfer oil natural gas of profit, this manufacturer
Method is: be corrosion-resistant alloy layer by cladding and basic unit is that carbon steel combines in " blast+hot rolling " mode
Ply-metal is shaped to vertical masonry joint tubulose by JCOE moulding process, will be straight finally by welding procedure
Seam welding makes cladding at interior basic unit vertical masonry joint bimetallic composite welded pipe outside；" blast+hot rolling " mode is tied
The ply-metal being combined, it is achieved the metallurgical binding of laminated composite plate, the present invention is primarily directed to
Pure titanium or the manufacture of titanium alloy/carbon steel stratiform composite welded pipe, ripple of relatively living due to titanium or titanium alloy, welded
In journey, Ti with Cu, Fe easily dissolve each other, and produce brittle phase, the cut design in above-mentioned manufacture method and weldering
Connect technique and be not suitable for pure titanium or the manufacture of titanium alloy/carbon steel stratiform composite welded pipe.
Summary of the invention:
In order to overcome above-mentioned technical problem, it is an object of the invention to provide a kind of titanium/steel layer shape composite welded pipe
Manufacture method, the manufacture method of the present invention reduces intermediate solid solution and the volume ratio in mixing solid solution district,
Make weld seam possess pure titanium or the deposition amount of titanium alloy welding material to greatest extent, successfully avoid interlayer brittle
The generation of phase, it is achieved that the reliable welding of titanium/steel layer shape composite welded pipe, and ensure that the welding quality of weld seam
And comprehensive mechanical property.
In order to solve above-mentioned technical problem, the technical scheme that the present invention takes is: a kind of titanium/steel lamellar composite
The manufacture method of welded tube, including step be:
Step 1: pure titanium or titanium alloy layer and carbon steel layer are prepared as layer structure by blast+hot rolling mode
Composite board, carbon steel layer and pure titanium or titanium alloy layer are metallurgical binding between the two, pure titanium or titanium alloy
The thickness of layer is 1～4mm；
Step 2: pure titanium or titanium alloy layer side for being inverted little trapezoidal shape groove, its cut angle be 60～
70 °, long limit is 5～7mm, and the degree of depth is 4～5mm；Carbon steel layer side is just to put big trapezoidal shape groove,
Its groove angle is 60～80 °, and long limit is 16～22mm, and the degree of depth is 11～20mm；It is inverted little trapezoidal
Shape groove and just putting big trapezoidal shape groove and be intersected in carbon steel layer side, and the transition face that crosses be plane or
Arc surfaced；
Step 3: after retaining wall on slope is complete, uses the progressive tubulose that is pressed into of JCO multi-pass, pure titanium or titanium to close
Layer gold is inside pipe, and carbon steel layer is outside pipe；Then MAG weldering groove outer to carbon steel layer is used to carry out multilamellar
The little heat input of multi-pass welds, and forms carbon steel layer deposition district, the pure titanium in the welding process back side or titanium alloy layer slope
Mouthful and neighbouring 10～20mm width range in carry out inert gas shielding；
Step 4: carbon steel layer side complete welding after air cooling to room temperature, the internal pure titanium of Welded Pipe or titanium alloy layer
Groove carries out back chipping process, and making bottom groove is plane or arc surfaced, is polished groove and uses third
Ketone and ethanol carry out whole cleaning and dry up rapidly；
Step 5: after the internal pure titanium of welded tube or the cleaning of titanium alloy layer side groove dry up, carry out pure Cu powder
SCM cold spraying welding, Cu powder particle size distribution is 10～50 μm, Cu spray layer thickness with
Pure titanium or titanium alloy/carbon steel blast composition surface is concordant or beyond 0～0.5mm, and lower floor carbon steel is completely covered；
After the spraying welding of Cu layer completes, Cu process is gone on titanium mother metal surface in groove, then uses SCM cold
Spraying technology carries out the spraying welding of high-purity V powder, and V powder particle size distribution is 5～45 μm,
V spray layer thickness is 0～0.5mm, and is completely covered by Cu transition zone, it is impossible to penetrate Cu spraying
Layer meets with carbon steel；After completing the welding of V transition zone, clear up in groove, then use TIG to melt
Welding technology groove outside to pure titanium or titanium alloy layer is filled with cover welding, forms pure titanium or titanium alloy layer
TIG deposition district, welding can not dissolve each other with Cu sprayed coating by penetration V sprayed coating, and whole welding process is equal
Protect in the range of using noble gas butt welded seam district and near zone 10～20mm width.
Above-mentioned pure titanium or titanium alloy layer thickness are 1～4mm.
Above-mentioned pure titanium or titanium alloy are TA1, TA2, TA3, TA4, TA5, TA6, TA7, TA8,
TA8-1、TA9、TA9-1、TA10、TA11、TA15、TA17、TA18、TC1、TC2、TC3、
TC4 or TC4ELI.
Above-mentioned carbon steel is Q235, Q345, X52, X60, X65, X70, X80, X90 or X100
Carbon structural steels, pressure vessel steel and high-strength and high ductility pipe line steel.
Beneficial effects of the present invention:
The present invention is just putting big trapezoidal shape groove by using and is being inverted the compound special type of little trapezoidal shape groove
Bevel design, uses MAG weldering, SCM cold spraying and TIG weldering, successively according to carbon steel layer, Cu spraying
The sequencing in floor and V sprayed coating, pure titanium or titanium alloy layer deposition district welds, and by Cu
Sprayed coating, the control of V spray layer thickness, make deposition district metal and the transition region of titanium/steel layer shape composite welded pipe
Metal fusion welding quality of connection is reliable, stop dissolving each other of Fe, Ti, Cu, it is to avoid the generation of the brittle phase of interlayer,
Achieve the reliable welding of titanium/steel layer shape composite welded pipe, it is ensured that welding quality that weld seam is good and resultant force
Learn performance.
Accompanying drawing illustrates:
Below in conjunction with the accompanying drawings the detailed description of the invention of the present invention is described in further detail.
Fig. 1 is titanium/steel layer shape composite welded pipe weld seam midplane shape transition interface structural representation.
Fig. 2 is Fig. 1 midplane shape transition interface partial enlargement structural representation.
Fig. 3 is titanium/steel layer shape composite welded pipe weld seam arc surfaced transition interface structural representation.
Fig. 4 is Fig. 3 arc surfaced transition interface partial enlargement structural representation.
Description of reference numerals: 1 is carbon steel layer；2 is pure titanium or titanium alloy layer；3 is pure titanium or titanium alloy layer
Deposited metal district；4 is V sprayed coating；5 is Cu sprayed coating；6 is carbon steel layer deposited metal district.
Detailed description of the invention:
See Fig. 1,2 with the compound titanium/steel layer shape composite board of blast+hot rolling technology for experimental raw sheet material,
Sheet material is carried out removing surface and removes lump, to sheet material both sides according to Fig. 2, groove design form is carried out in 4
Welding characteristic retaining wall on slope, then uses JCO molding mode to be processed into tubulose, then uses in the present invention and push away
Recommend welding material and technique carries out the melting welding of multiple tube and connects.
Pure titanium or titanium alloy layer side groove depth and width be respectively 4～6mm and 5～7mm and groove at the bottom of
Portion is plane or arc surfaced (the most as shown in Figure 2,3) two kinds with the interface that crosses of carbon steel layer side,
Carbon steel layer side groove width and angle are respectively 13～20mm and 60～80 °, JCO molding to be done
After joint close, longitudinal joint is first carried out MAG welding from carbon steel side, uses H08Mn2SiA
Welding wire；After being fully completed the welding of carbon steel side, inside steel pipe, i.e. pure titanium or titanium alloy layer side carry out slope
Mouth back chipping and purifying process, then use CSM technology to carry out pure Cu sprayed coating surfacing, Cu to be done
Sprayed coating surfacing followed by carries out pure V sprayed coating surfacing, and the TIG finally carrying out pure titanium or titanium alloy layer fills out
Fill cosmetic welding, with industrially pure titanium (purity 99.999%) TA1 welding wire or titanium alloy welding wire
Welding condition is such as table 1 below, shown in 2,3, and body and Weld Performance are as shown in table 4:
Table 1 X65 pipeline steel layer side soldering test parameter
Table 2 pure titanium TA1 soldering test parameter
The spray parameters of table 3 pure Cu, V
Table 4 pure titanium or titanium alloy layer/carbon steel layer metallurgical binding stratiform composite welded pipe body and Weld Performance test result
The present invention is suitable for heavy caliber (diameter >=508mm), the pure titanium of thin cladding (thickness≤4mm)
Or the titanium alloy/through engineering approaches of carbon steel stratiform composite welded pipe, mass production, there is the highest practical value.
Above content is to combine concrete preferred implementation further description made for the present invention,
It cannot be assumed that the detailed description of the invention of the present invention is only limitted to this, common for the technical field of the invention
For technical staff, without departing from the inventive concept of the premise, the some simple deduction made, replacement
Or conversion etc. all should be considered as belonging to claims that the present invention submitted to and determine scope of patent protection.
Claims (4)
1. a manufacture method for titanium/steel layer shape composite welded pipe, including by pure titanium or titanium alloy layer
With the composite board that carbon steel layer is prepared as layer structure by blast+hot rolling mode, its feature exists
In: described manufacture method is further comprising the steps of:
Step 1: described composite board carries out cut processing, pure titanium or titanium alloy after having prepared
Layer (2) side is for being inverted little trapezoidal shape groove, and its cut angle is 60～70 °, and long limit is
5～7mm, the degree of depth is 4～5mm；Carbon steel layer (1) side is just to put big trapezoidal shape groove,
Its groove angle is 60～80 °, and long limit is 16～22mm, and the degree of depth is 11～20mm；Fall
Put little trapezoidal shape groove and just putting big trapezoidal shape groove and be intersected in carbon steel layer (1) side, and
The transition face that crosses is plane or arc surfaced.
Step 2: after retaining wall on slope is complete, uses the progressive tubulose that is pressed into of JCO multi-pass, pure titanium
Or titanium alloy layer (2) is inside pipe, carbon steel layer is outside pipe；Then use MAG weldering right
Carbon steel layer (1) outer groove carries out the welding of multilamellar multi-pass little heat input, forms carbon steel layer deposition
District (6), the pure titanium in the welding process back side or titanium alloy layer (2) groove and neighbouring 10～20mm
Inert gas shielding is carried out in width range；
Step 3: carbon steel layer (1) side complete welding after air cooling to room temperature, inside Welded Pipe
Pure titanium or titanium alloy layer (2) groove carry out back chipping process, make bottom groove as plane or arc
Planar, is polished groove and carries out whole cleaning with acetone and ethanol and dry up rapidly；
Step 4: after the internal pure titanium of welded tube or the cleaning of titanium alloy layer (2) side groove dry up,
Carrying out the SCM cold spraying welding of pure Cu powder, Cu powder particle size distribution is
10～50 μm, Cu sprayed coating (5) thickness is concordant with pure titanium or titanium alloy/carbon steel blast composition surface
Or beyond 0～0.5mm, and lower floor carbon steel is completely covered；Cu sprayed coating (5) has welded
After, Cu process is gone on titanium mother metal surface in groove, then uses SCM cold spray technique
Carrying out the spraying welding of high-purity V powder, V powder particle size distribution is 5～45 μm, V
Sprayed coating (4) thickness is 0～0.5mm, and is completely covered by Cu transition zone (5),
Cu sprayed coating (5) can not be penetrated meet with carbon steel；After completing V sprayed coating (4) welding,
Clear up in groove, then use TIG welding technology to pure titanium or titanium alloy layer (2)
Outside groove is filled with cover welding, forms pure titanium or titanium alloy layer deposition district (3), welding
Can not dissolve each other with Cu sprayed coating (5) by penetration V sprayed coating (4), whole welding process
Protect in the range of all using noble gas butt welded seam district and near zone 10～20mm width.
2. the manufacture method of titanium/steel layer shape composite welded pipe as claimed in claim 1, its feature
Be: described pure titanium or titanium alloy are TA1, TA2, TA3, TA4, TA5, TA6, TA7,
TA8、TA8-1、TA9、TA9-1、TA10、TA11、TA15、TA17、TA18、TC1、
TC2, TC3, TC4 or TC4ELI.
3. the manufacture method of titanium/steel layer shape composite welded pipe as claimed in claim 1, its feature
It is: described carbon steel is Q235, Q345, X52, X60, X65, X70, X80, X90
Or X100 carbon structural steels, pressure vessel steel and high-strength and high ductility pipe line steel.
4. the manufacture method of titanium/steel layer shape composite welded pipe as claimed in claim 1, its feature
It is: the welding wire that the welding of described step 2 medium carbon steel layer (1) uses is H08Mn2SiA, weldering
Filament diameter is 1.2mm.
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| CN201610363788.1A CN106001956B (en) | 2016-05-27 | 2016-05-27 | A kind of manufacture method of titanium/steel layer shape composite welded pipe |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106425104A (en) * | 2016-12-05 | 2017-02-22 | 西南交通大学 | One-sided welding double-sided molding welding method for titanium steel composite pipe |
| CN108890076A (en) * | 2018-07-24 | 2018-11-27 | 中国石油天然气集团有限公司 | A kind of boxing method of corrosion resistant alloy inner liner compound pipe |
| CN110548777A (en) * | 2018-05-31 | 2019-12-10 | 宝钢特钢有限公司 | Cold rolling pipe manufacturing method for bimetal composite seamless steel pipe |
| CN113458549A (en) * | 2021-07-01 | 2021-10-01 | 陕西铁路工程职业技术学院 | Preparation method of composite pipe based on spraying technology |
| CN115041928A (en) * | 2022-07-05 | 2022-09-13 | 宝鸡宝冶钛镍制造有限责任公司 | Seabed petroleum titanium steel composite pipe and manufacturing method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110548777A (en) * | 2018-05-31 | 2019-12-10 | 宝钢特钢有限公司 | Cold rolling pipe manufacturing method for bimetal composite seamless steel pipe |
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| CN113458549B (en) * | 2021-07-01 | 2023-01-24 | 陕西铁路工程职业技术学院 | Preparation method of composite pipe based on spraying technology |
| CN115041928A (en) * | 2022-07-05 | 2022-09-13 | 宝鸡宝冶钛镍制造有限责任公司 | Seabed petroleum titanium steel composite pipe and manufacturing method thereof |
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| CN106001956B (en) | 2018-02-27 |
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Effective date of registration: 20181015 Address after: 100007 Dongzhimen North Street, Dongcheng District, Dongcheng District, Beijing Co-patentee after: Baoji Petroleum Steel Pipe Co., Ltd. Patentee after: China Petroleum and Natural Gas Group Co., Ltd. Address before: 721008 10 Jiang Tan Road, Weibin District, Baoji, Shaanxi. Patentee before: Baoji Petroleum Steel Pipe Co., Ltd. |
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