CN103978292B - Bimetal metallurgy multiple tube that four roads have welded and process thereof - Google Patents
Bimetal metallurgy multiple tube that four roads have welded and process thereof Download PDFInfo
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- CN103978292B CN103978292B CN201410225216.8A CN201410225216A CN103978292B CN 103978292 B CN103978292 B CN 103978292B CN 201410225216 A CN201410225216 A CN 201410225216A CN 103978292 B CN103978292 B CN 103978292B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L9/00—Rigid pipes
- F16L9/17—Rigid pipes obtained by bending a sheet longitudinally and connecting the edges
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/08—Making tubes with welded or soldered seams
- B21C37/0807—Tube treating or manipulating combined with, or specially adapted for use in connection with tube making machines, e.g. drawing-off devices, cutting-off
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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
- B23K33/00—Specially-profiled edge portions of workpieces for making soldering or welding connections; Filling the seams formed thereby
- B23K33/004—Filling of continuous seams
- B23K33/006—Filling of continuous seams for cylindrical workpieces
-
- 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
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Arc Welding In General (AREA)
Abstract
Bimetal metallurgy multiple tube that a kind of four roads have welded and process thereof, multiple tube includes alloy-layer, carbon steel layer and weld seam, between described alloy-layer and the described carbon steel layer of described weld seam both sides, milling has double V-groove, described carbon steel layer milling has X-type groove, the center weld of described carbon steel layer X-type groove is initially with prewelding, the inner side of described X-type groove is welded with interior layer, and the outside of described X-type groove is welded with outer layer；Described interior layer is on the side within described bimetal metallurgy multiple tube, and is welded with alloy-layer soldering and sealing layer between the described alloy-layer of described weld seam both sides；Described alloy-layer soldering and sealing layer seal described double V-groove, and and the described carbon steel layer of described interior layer and described weld seam both sides between metallurgical binding；4 road welding sequences can complete metallurgical composite pipe weld seam, it is not necessary to increases transition weldering between carbon steel and alloy-layer, thus avoids the unfavorable factor of excessive welding.
Description
Technical field
The present invention relates to and conveyance conduit technical field, especially relate to bimetal metallurgy multiple tube and process thereof that a kind of four roads have welded.
Background technology
Under arms under environment harshness, when carrying highly corrosive medium or high concentration corrosive medium, use general carbon steel can not meet design period requirement, and use pure material, expense and the costs such as rustless steel, nickel-base alloy or dual phase steel much more expensive.So, for conveying high-corrosion medium, use composite bimetal pipe can meet pipeline corrosion resistance, high life and low cost.Composite bimetal pipe mainly includes mechanical type multiple tube and metallurgy type multiple tube.This patent is mainly for a kind of bimetal metallurgy multiple tube using four roads to weld.
Summary of the invention
It is an object of the invention to design bimetal metallurgy multiple tube and the process thereof that a kind of four novel roads have welded, solve the problems referred to above.
To achieve these goals, the technical solution used in the present invention is as follows:
The bimetal metallurgy multiple tube that a kind of four roads have welded, including alloy-layer, carbon steel layer and weld seam, between described alloy-layer and the described carbon steel layer of described weld seam both sides, milling has double V-groove, described carbon steel layer milling has X-type groove, the center weld of described X-type groove has internal pre-layer, the inner side of described X-type groove is welded with interior layer, and the outside of described X-type groove is welded with outer layer；
Described interior layer is on the side within described bimetal metallurgy multiple tube, and is welded with alloy-layer soldering and sealing layer between the described alloy-layer of described weld seam both sides；Described alloy-layer soldering and sealing layer seal described double V-groove, and and the described carbon steel layer of described interior layer and described weld seam both sides between metallurgical binding.
The center weld of described X-type groove has the pre-layer in described inside using gas metal-arc welding automatic prewelding continuously and being formed through natural cooling; the inner side of described X-type groove is welded with the described interior layer using the multi-wire submerged-arc automatic welding method of 2-5 to be formed, and the outside of described X-type groove is also welded with the outer layer using the multi-wire submerged-arc automatic welding method of 2-5 to be formed；
Described interior layer is on the side within described bimetal metallurgy multiple tube, and is welded with the described alloy-layer soldering and sealing layer using electroslag welding method to be formed between the described alloy-layer of described weld line both sides.
Two angle of heel scopes of described alloy-layer double V-groove are 15 °-35 °；Opening width range is 25mm-40mm；
Two angle of heel scopes of described X-type groove are 20 °-35 °；The opened gap width range of both sides is 0mm-1mm；Root face width range 0.5mm-2.5mm；
Weld width scope 1mm-5mm of the pre-layer in described inside；
The weld width scope of described interior layer is 15mm-25mm；
The weld width scope of described outer layer is 15mm-25mm；
Described carbon steel layer thickness range is 5mm-30mm；
Described alloy layer thickness scope is 0.5mm-5mm.
The process of the bimetal metallurgy multiple tube that a kind of four roads have welded, comprises the following steps that
The first step, for manufacturing the metallurgical composite plate of described bimetal metallurgy multiple tube, along steel plate length direction at edges of boards every side milling X-type-double V-groove, every side milling one side double V-groove on alloy-layer length direction, and it is clean to guarantee that alloying metal is removed；Every side milling one side milling X-type groove on carbon steel layer length direction；
Second step, rolls into drum joint close；
3rd step, prewelding, use gas metal-arc welding center commissural to X-type to carry out prewelding the most automatically, and natural cooling；
4th step, interior weldering, from the inner surface of described bimetal metallurgy multiple tube, use the multi-wire submerged-arc automatic welding method of 2 to 5 to complete inside weld welding；
5th step, outside weld, from the outer surface of described bimetal metallurgy multiple tube, use the multi-wire submerged-arc automatic welding method of 2 to 5 to complete outside weld welding；
6th step, soldering and sealing, from the inner surface of described bimetal metallurgy multiple tube, stretch into welding gun, use electroslag welding method to complete alloy-layer weld joint close soldering and sealing and connect, it is achieved inner surface alloy-layer is connected, and with carbon steel pipe inside weld metallurgical binding.
Also include the 7th step, through full body machinery expanding, internal layer Passivation Treatment, and the nondestructive testing of corresponding product code requirement and appearance test operation, be generated as the bimetal metallurgy multiple tube that four road Weldings manufacture.
In second step, before rolling into drum joint close, first pass through JCO technique, or UO technique, or three-roll formation tube-making process reel forming.
JCO technique, UO technique, for the molding pipe rolling technique of a kind of pictograph, all understand in industry.
Metallurgy type ply-metal, i.e. carbon steel is that matrix steel plate (realizing bearing function) same to alloy-layer (realizing corrosion-resistant function) is by certain technique (the machinery technique such as hot rolling or Explosion composite), formation metallurgy type combination between bi-metal interface.Using carbon steel wlding and alloy coupling wlding, by four road welding procedures, it is achieved carbon steel connects carbon steel, alloy connects alloy, it is not necessary to transition between carbon steel and alloy, thus improves efficiency, saves material, it is ensured that weldquality, and welding forms bimetal metallurgy multiple tube.
This patent product, stable and reliable product quality, there is certain market and technical advantage.Welding procedure is easy, easy, efficient, save material, carry out carbon steel welding respectively and alloy welds, i.e. 4 road welding sequences can complete metallurgical composite pipe weld seam, without increasing transition weldering between carbon steel and alloy-layer, thus avoid the unfavorable factor of excessive welding, as increased degradation under operation, transition welding heat zone of influence coarse grains, welding seam toughness；And mainly wlding only needs 2 kinds, i.e. carbon steel wlding and alloy ribbon welding material, it is not necessary to transition wlding, wlding and weld time can be saved, improve and produce and tubulation efficiency.
This patent discloses a kind of bimetal metallurgy composite pipe production method using four road welding sequences to complete.By metallurgical composite bimetal plate, through alloy-layer groove milling, substrate carbon steel groove milling, after molding (JCOE or UO or three roller methods) operation, then weldering in base tube carbon steel pipe prewelding, base tube carbon steel pipe, base tube carbon steel pipe outside weld, the four road welding sequences such as internal layer soldering and sealing, last full body machinery expanding, internal layer Passivation Treatment, inspection, it is fabricated by metallurgical composite bimetal pipe.
Beneficial effects of the present invention can be summarized as follows:
This patent product, stable and reliable product quality, there is certain market and technical advantage.Welding procedure is easy, easy, efficient, save material, carry out carbon steel welding respectively and alloy welds, i.e. 4 road welding sequences can complete metallurgical composite pipe weld seam, without increasing transition weldering between carbon steel and alloy-layer, thus avoid the unfavorable factor of excessive welding, as increased degradation under operation, transition welding heat zone of influence coarse grains, welding seam toughness；And mainly wlding only needs 2 kinds, i.e. carbon steel wlding and alloy ribbon welding material, it is not necessary to transition wlding, wlding and weld time can be saved, improve and produce and tubulation efficiency.
Accompanying drawing explanation
Fig. 1 is metallurgy type ply-metal (longitudinal seam) bevel schematic diagram；
Fig. 2 is bimetal metallurgy multiple tube (longitudinal seam) groove schematic diagram；
Fig. 3 is that bimetal metallurgy multiple tube (longitudinal seam) first welds (prewelding) postwelding schematic diagram；
Fig. 4 is that bimetal metallurgy multiple tube (longitudinal seam) second welds (interior weldering) postwelding schematic diagram；
Fig. 5 is that bimetal metallurgy multiple tube (longitudinal seam) the 3rd road welds (outside weld) postwelding schematic diagram；
Fig. 6 is that bimetal metallurgy multiple tube (longitudinal seam) the 4th road welds (alloy-layer soldering and sealing) postwelding schematic diagram.
Detailed description of the invention
In order to make technical problem solved by the invention, technical scheme and beneficial effect clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
The bimetal metallurgy multiple tube that a kind of four roads as shown in Figures 1 to 6 have welded, including alloy-layer 2, carbon steel layer 1 and weld seam 3, between described alloy-layer 2 and the described carbon steel layer 1 of described weld seam 3 both sides, milling has double V-groove, the milling of described carbon steel layer 1 has X-type groove, the center weld of described X-type groove has internal pre-layer 4, the inner side of described X-type groove is welded with interior layer 5, and the outside of described X-type groove is welded with outer layer 6；Described interior layer 5 is on the side within described bimetal metallurgy multiple tube, and is welded with alloy-layer soldering and sealing layer 7 between the described alloy-layer 2 of described weld seam 3 both sides；Described alloy-layer soldering and sealing layer 7 seals described double V-groove, and and the described carbon steel layer 1 of described interior layer 5 and described weld seam 3 both sides between metallurgical binding.
In embodiment more preferably; the center weld of described X-type groove has the pre-layer in described inside 4 using gas metal-arc welding automatic prewelding continuously and being formed through natural cooling; the inner side of described X-type groove is welded with the described interior layer 5 using the multi-wire submerged-arc automatic welding method of 2-5 to be formed, and the outside of described X-type groove is also welded with the outer layer 6 using the multi-wire submerged-arc automatic welding method of 2-5 to be formed；Described interior layer 5 is on the side within described bimetal metallurgy multiple tube, and is welded with the described alloy-layer soldering and sealing layer 7 using electroslag welding method to be formed between the described alloy-layer 2 of described weld seam 3 line both sides.
In embodiment more preferably, two angle of heel scopes of described alloy-layer 2V type groove are 15 °-35 °；Opening width range is 25mm-40mm；Two angle of heel scopes of described X-type groove are 20 °-35 °；The opened gap width range of both sides is 0mm-1mm；Root face width range 0.5mm-2.5mm；The weld seam 3 width range 1mm-5mm of the pre-layer in described inside 4；Weld seam 3 width range of described interior layer 5 is 15mm-25mm；Weld seam 3 width range of described outer layer 6 is 15mm-25mm；Described carbon steel layer 1 thickness range is 5mm-30mm；Described alloy-layer 2 thickness range is 0.5mm-5mm.
The process of the bimetal metallurgy multiple tube that a kind of four roads have welded, comprises the following steps that
The first step, for manufacturing the metallurgical composite plate of described bimetal metallurgy multiple tube, along steel plate length direction at edges of boards every side milling X-type-double V-groove, every side milling one side double V-groove on alloy-layer 2 length direction, and it is clean to guarantee that alloying metal is removed；Every side milling one side milling X-type groove on carbon steel layer 1 length direction；
Second step, rolls into drum joint close；
3rd step, prewelding, use gas metal-arc welding center commissural to X-type to carry out prewelding the most automatically, and natural cooling；
4th step, interior weldering, from the inner surface of described bimetal metallurgy multiple tube, use the multi-wire submerged-arc automatic welding method of 2 to 5 to complete inside weld 3 and weld；
5th step, outside weld, from the outer surface of described bimetal metallurgy multiple tube, use the multi-wire submerged-arc automatic welding method of 2 to 5 to complete outside weld 3 and weld；
6th step, soldering and sealing, from the inner surface of described bimetal metallurgy multiple tube, stretch into welding gun, use electroslag welding method to complete alloy-layer 2 weld seam 3 and seal welding, it is achieved inner surface alloy-layer 2 is connected, and with carbon steel pipe inside weld 3 metallurgical binding.
In embodiment more preferably, the process of the bimetal metallurgy multiple tube that described four roads have welded also includes the 7th step, through full body machinery expanding, internal layer Passivation Treatment, and the nondestructive testing of corresponding product code requirement and appearance test operation, it is generated as the bimetal metallurgy multiple tube that four road Weldings manufacture.
In embodiment more preferably, in second step, before rolling into drum joint close, first pass through JCO technique, or UO technique, or three-roll formation tube-making process reel forming.
Bimetal metallurgy multiple tube manufacturing process flow is: alloy-layer 2 groove milling, substrate carbon steel groove milling, molding (JCOE or UO or three roller methods), base tube carbon steel pipe prewelding, weldering in base tube carbon steel pipe, base tube carbon steel pipe outside weld, internal layer soldering and sealing, full body machinery expanding, internal layer Passivation Treatment, inspection, mark.
Metallurgical composite plate first along steel plate length direction (steel pipe is longitudinally) at edges of boards milling X-type-double V-groove, milling double V-groove between alloy-layer 2 and carbon steel layer 1, it is ensured that alloying metal is removed clean, carbon steel layer 1 milling X-type groove, as shown in Figure 1.After the tube-making process molding such as JCO technique, UO technique, or three-roll formation, roll into drum joint close, as shown in Figure 2；First welds, prewelding, i.e. uses gas metal-arc welding automatic prewelding continuously, and natural cooling, pre-postwelding is as shown in Figure 3；Second welds, interior weldering, i.e. from bimetal metallurgy multiple tube inner surface, uses multifibres (2-5 silk) automatic submerged-arc welding method to complete inside weld 3 and welds, and interior postwelding is as shown in Figure 4；3rd road welding, outside weld, i.e. from bimetal metallurgy multiple tube outer surface, use multifibres (2-5 silk) automatic submerged-arc welding method to complete outside weld 3 and weld, outer postwelding is as shown in Figure 5；4th road welding, soldering and sealing, i.e. from bimetal metallurgy multiple tube inner surface, stretch into welding gun, use electroslag welding (Electro Slag Welding, ESW) method to complete alloy-layer 2 weld seam 3 and seal welding, it is achieved inner surface alloy-layer 2 is connected, and be connected, as shown in Figure 6 with carbon steel pipe inside weld 3 metallurgy.Then pass through full body machinery expanding, internal layer Passivation Treatment, and the operation such as the nondestructive testing of corresponding product code requirement and appearance test, be the bimetal metallurgy multiple tube that four road Weldings manufacture.
The present invention is described in detail with preferred embodiment above by concrete; but those skilled in the art should be understood that; the invention is not limited in embodiment described above; all within the spirit and principles in the present invention; any amendment of being made, equivalent etc., should be included within the scope of the present invention.
Claims (2)
1. the bimetal metallurgy multiple tube that a road has welded, it is characterised in that: include alloy-layer, carbon
Steel layer and weld seam, between described alloy-layer and the described carbon steel layer of described weld seam both sides, milling has double V-groove,
Described carbon steel layer milling has X-type groove, the center weld of described X-type groove to have internal pre-layer, described X
The inner side of type groove is welded with interior layer, and the outside of described X-type groove is welded with outer layer；
Described interior layer is on the side within described bimetal metallurgy multiple tube, and at described weld seam two
Alloy-layer soldering and sealing layer it is welded with between the described alloy-layer of side；Described alloy-layer soldering and sealing layer seals described V-type slope
Mouthful, and and the described carbon steel layer of described interior layer and described weld seam both sides between metallurgical binding；Described X-type
The center weld of groove has employing gas metal-arc welding automatic prewelding continuously and through natural cooling formation
The pre-layer in described inside, the inner side of described X-type groove is welded with the multi-wire submerged-arc automatic welding using 2-5
The described interior layer that method is formed, the outside of described X-type groove is also welded with and uses the multifibres of 2-5 to bury
The outer layer that arc automatic welding method is formed；
Described interior layer is on the side within described bimetal metallurgy multiple tube, and at described weld line
The described alloy-layer soldering and sealing layer using electroslag welding method to be formed it is welded with between the described alloy-layer of both sides；
Two angle of heel scopes of described alloy-layer double V-groove are 15 °-35；Opening width range is 25mm
-40mm；
Two angle of heel scopes of described X-type groove are 20 °-35；The opened gap width range of both sides is
0mm-1mm；Root face width range 0.5mm-2.5mm；
Weld width scope 1mm-5mm of the pre-layer in described inside；
The weld width scope of described interior layer is 15mm-25mm；
The weld width scope of described outer layer is 15mm-25mm；
Described carbon steel layer thickness range is 5mm-30mm；
Described alloy layer thickness scope is 0.5mm-5mm.
2. the technique side of the bimetal metallurgy multiple tube that four roads according to claim 1 have welded
Method, it is characterised in that comprise the following steps that
The first step, for manufacturing the metallurgical composite plate of described bimetal metallurgy multiple tube, along steel plate length direction
At edges of boards every side milling X-type-double V-groove, every side milling one side double V-groove on alloy-layer length direction,
And it is clean to guarantee that alloying metal is removed；Every side milling one side milling X-type groove on carbon steel layer length direction；
Second step, rolls into drum joint close；Before rolling into drum joint close, first pass through JCO
Technique, or UO technique, or three-roll formation tube-making process reel forming；
3rd step, prewelding, use gas metal-arc welding center commissural to X-type to carry out the most automatically
Prewelding, and natural cooling；
4th step, interior weldering, from the inner surface of described bimetal metallurgy multiple tube, use 2 to more than 5
Silk automatic submerged-arc welding method completes inside weld welding；
5th step, outside weld, from the outer surface of described bimetal metallurgy multiple tube, use 2 to more than 5
Silk automatic submerged-arc welding method completes outside weld welding；
6th step, soldering and sealing, from the inner surface of described bimetal metallurgy multiple tube, stretch into welding gun, use electroslag
Soldering method completes alloy-layer weld joint close soldering and sealing and connects, it is achieved inner surface alloy-layer is connected, and welds in carbon steel pipe
Seam metallurgical binding.
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| CN105135071A (en) * | 2015-08-25 | 2015-12-09 | 江苏众信绿色管业科技有限公司 | Method for manufacturing double-metal composite pipe |
| CN105252116B (en) * | 2015-10-10 | 2017-12-15 | 西安交通大学 | A kind of bimetal metallurgy composite pipe welding method |
| CN106989216A (en) * | 2016-01-20 | 2017-07-28 | 浙江三花智能控制股份有限公司 | The processing method of pipe fitting body, pipe fitting and pipe fitting |
| CN105479187A (en) * | 2016-01-22 | 2016-04-13 | 中建钢构天津有限公司 | Welding method of medium-thickness groove |
| CN110216357A (en) * | 2019-05-28 | 2019-09-10 | 中钢不锈钢管业科技山西有限公司 | A kind of manufacturing method of bimetallic composite welded pipe |
| CN112439982A (en) * | 2020-11-16 | 2021-03-05 | 四川石油天然气建设工程有限责任公司 | X-shaped groove welding process of corrosion-resistant alloy composite pipe |
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| CN103978292A (en) | 2014-08-13 |
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