CN104607773A - Tubulation welding method of stainless steel outer composite tube - Google Patents
Tubulation welding method of stainless steel outer composite tube Download PDFInfo
- Publication number
- CN104607773A CN104607773A CN201410758154.7A CN201410758154A CN104607773A CN 104607773 A CN104607773 A CN 104607773A CN 201410758154 A CN201410758154 A CN 201410758154A CN 104607773 A CN104607773 A CN 104607773A
- Authority
- CN
- China
- Prior art keywords
- welding
- stainless steel
- tubulation
- arc welding
- seam
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/38—Selection of media, e.g. special atmospheres for surrounding the working area
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Arc Welding In General (AREA)
Abstract
The invention discloses a tubulation welding method of a stainless steel outer composite tube. The lower portion of the gap of tube blanks formed by bending a stainless steel composite plate is directly welded in an argon tungsten-arc welding mode, basic layer carbon steel of the stainless steel composite plate is welded and then automatically forms a downwards concave welding joint, after the welding joint is forcedly cooled with water, capping welding is directly carried out on the welding joint in a gas metal arc welding mode until the surplus height of the welding joint is 1-1.50 mm, then water is sprayed for cooling, and tubulation welding of the stainless steel outer composite tube is finished. The tubulation welding method is simpler than an existing method, the stainless steel outer composite tube does not need to be grooved, forming is realized one time, and as the protective atmosphere is gas, good corrosion resistance is realized, and the cost is lower compared with other welding methods. The tubulation welding method of the stainless steel outer composite tube guarantees that the strength of the welding joint of the stainless steel outer composite tube is higher than that of parent metal, and also guarantees that the welding joint of the stainless steel composites has good anti-corrosion performance.
Description
Technical field
The present invention relates to the tubulation welding method of the outer multiple tube of a kind of stainless steel, belong to tubulation welding technology field.
Background technology
The outer multiple tube of stainless steel is a steel pipe kind of recent development.Pipe material and stainless steel composite material adopt common straightcarbon steel as base material, by metallurgical binding mode, stainless steel, as plied timber, becomes that basic unit's (carbon steel) has enough structural strengths, cladding (stainless steel) has enough decay resistances and the novel stainless steel composite material of decorate properties preferably.The outer multiple tube of stainless steel is the outer surface layer using stainless steel layer as pipe, has ornamental and corrosion resistance, using carbon steel as the interior surface layers of pipe, has enough mechanical strengths.In related compound material tube-making technology, be stainless steel composite material is rolled and carry out seam between the two ends rolled, thus form hollow tubular body.Existing welding is usually in groove welding mode, and concrete technology is;---------machining makes weld seam form groove---carries out stainless steel cosmetic welding more in a groove to carry out intermediate layer welding again to do backing welding with carbon steel (silk) first to establish groove at two interfaces to be welded.There is following shortcoming: welding sequence is numerous and diverse: need to establish groove in advance, after being soldered Carbon steel welds, needing machining in welded joints to go out groove, then carry out stainless steel weldering; Wlding consumption is large: also want machined grooves after being soldered Carbon steel welds; Welding efficiency is low: repeatedly reprocessabilty.Therefore, be necessary to be improved prior art.
Summary of the invention
For solving the problems such as the outer multiple tube of stainless steel welding sequence when tubulation is numerous and diverse, wlding consumption is large, welding efficiency is low, the invention provides the tubulation welding method of the outer multiple tube of a kind of stainless steel, to reduce welding sequence, avoiding wlding waste, improving welding efficiency.
The present invention is achieved through the following technical solutions: the tubulation welding method of the outer multiple tube of a kind of stainless steel, is characterized in that through following each step:
(1) argon tungsten-arc welding is adopted, directly weld in the pipe gap location bottom that stainless steel clad plate is bent into, controlling the tungsten electrode argon-arc welding seam recessed degree of depth is 0.20 ~ 1.00mm, ensures the weld strength of basic unit's carbon steel material, and reserves recessed welding space for gas metal-arc welding;
(2) after the Tig Welding of step (1) completes, after natural slow cooling, by normal-temperature water with 0.3 ~ 1.0m
3the current butt welded seam of/min carries out Forced water cooling;
(3) the weld seam welding slag after step (2) Forced water cooling is removed;
(4) on the weld seam of step (3), stainless steel cover face welding is carried out with gas metal-arc welding, until final weld reinforcement is 1 ~ 1.50mm, to reduce the polishing amount of weld grinding in following process;
(5) after the gas metal-arc welding of step (4) has welded, through natural slow cooling, with the water of normal temperature with 0.3 ~ 1.0m
3the current butt welded seam of/min carries out Forced water cooling, obtains the outer multiple tube of stainless steel.
The welding of described step (1) carries out in the moving process of the pipe be bent at stainless steel clad plate, and translational speed is 0.3 ~ 2.0m/min.
The pipe gap of described step (1) is 0.2 ~ 2mm.
The weldingvoltage of the argon tungsten-arc welding of described step (1) is 6 ~ 18V, and welding current is 100 ~ 350A, speed of welding and translational speed.
The removing of described step (3) is cleared up by cleaning roller butt welded seam.It is the welding quality of the gas metal-arc welding for ensureing step (4).This is because when carrying out Tig Welding; the welding slags such as the oxide around weld seam, impurity can float over face of weld; and in the scattered distribution of point-like, electric arc during gas metal-arc welding can be caused so unstable, the stability of impact welding and welding quality.
The welding condition of the gas metal-arc welding of described step (4) is as follows: weldingvoltage is 20 ~ 36V, and welding current is 100 ~ 250A, and send wire speed to be 4 ~ 20m/min, speed of welding and translational speed, electrode extension is 8 ~ 18mm; Protective gas is: pressure is 3 ~ 15MPa, argon gas (Ar) or helium (He) proportion > 80%, carbon dioxide (CO
2) or oxygen (O
2) mist of proportion < 20%.
The gas metal-arc welding of described step (4) adopts stainless steel welding stick; and nickel in stainless steel welding stick, chromium content are higher than the nickel in cladding stainless steel material, chromium content; the weld seam nickel that carbon steel composition and stainless steel welding stick composition in order to make up weld seam molten bath be miscible to be caused, chromium content decline, to ensure weld seam antiseptic property.
The weld width of the gas metal-arc welding of described step (4) is greater than the width of the tungsten electrode argon-arc welding seam of step (1).
Natural slow cooling in described step (2) and step (5) is: the pipe that stainless steel clad plate is bent into the translational speed of 0.3 ~ 2.0m/min, mobile 500 ± 300mm and naturally cooling of completing.
The Forced water cooling of described step (2) makes weld seam be cooled to 60 ± 40 DEG C, and Interlaminar Crack appears in the weld seam after welding to prevent gas metal-arc welding.
The Forced water cooling of described step (5) makes weld seam be cooled to room temperature, so that the subsequent processing operations of tubulation can carry out smoothly.
Argon tungsten-arc welding of the present invention, natural slow cooling, Forced water cooling, welding slag removing, gas metal-arc welding, more natural slow cooling, again Forced water cooling; be all carry out successively in the moving process of the pipe be bent at stainless steel clad plate, the translational speed of the pipe that stainless steel clad plate is bent into controls at 0.3 ~ 2.0m/min.
The advantage that the present invention possesses and effect: welding method provided by the invention is simpler than existing methods; groove need not be beaten during composite tubulation outside stainless steel; groove is gone out without the need to machining on basic unit's Carbon steel welds; effective saving wlding; by the continuous welding of argon tungsten-arc welding, gas metal-arc welding; once just can make the outer compound pipe molding of stainless steel, and because of protective atmosphere be gas, reach corrosion resistance good while lower compared to the cost of other welding methods.The present invention both ensure that the outer multiple tube weld strength of stainless steel composite material was higher than mother metal, in turn ensure that stainless steel composite material weld seam has good antiseptic property, the outer multiple tube of the stainless steel composite material produced is after surface treatment, with GB GB/T 10125-1997 " artificial atmosphere corrosion test salt spray test " for standard, butt welded seam carries out neutral salt spray test test, weld seam through the neutral salt spray test of 1500 hours, non-corroding; Test by GB GB/T 246-1997 " flattening test on tube of metal method ", weld seam flawless.
Accompanying drawing explanation
Fig. 1 is that the tubulation welding procedure of the outer multiple tube of stainless steel controls schematic diagram;
Fig. 2 is the schematic diagram after step (1) Tig Welding;
Fig. 3 is the schematic diagram after the welding of step (2) gas metal-arc welding.
The outer multiple tube of 1-stainless steel to be welded; 2-edger roll pair, for fixing, the outer multiple tube of guiding stainless steel; 3-tungsten electrode argon arc welding gun; 4-natural slow cooling; 5-Forced water cooling hydraulic giant; 6-cleaning roller; 7-edger roll pair; 8-gas metal-arc welding welding gun; 9-natural slow cooling; 10-Forced water cooling hydraulic giant; 11-stainless steel cladding; 12-basic unit carbon steel; 13-tungsten electrode argon-arc welding seam; 14-gas metal-arc welding weld seam.
Detailed description of the invention
Below by embodiment, the invention will be further described.
Embodiment adopts the trade mark to be the stainless steel composite plate of SUS304+Q235, and chemical composition refers to table 1.
Table 1 stainless steel composite material cladding chemical composition (%)
Table 2 CHM-308 stainless steel welding stick chemical composition (%)
Table 3 CHM-308L stainless steel welding stick chemical composition (%)
Embodiment 1
As Fig. 1,2,3.
By stainless steel clad plate thick for 2.0mm to be welded, (wherein basic unit's carbon steel 12 thickness is 1.6mm, stainless steel cladding 11 thickness is 0.4mm) make the outer multiple tube 1 of stainless steel to be welded by the pipe moulding process before welding procedure, be fixed on edger roll in 2 and 7, to support the outer multiple tube 1 of stainless steel to be welded to be welded, the welded gaps simultaneously controlling argon tungsten-arc welding is 0.2 ~ 0.8mm.Argon tungsten-arc welding, natural slow cooling, Forced water cooling, welding slag removing, gas metal-arc welding, more natural slow cooling, again Forced water cooling; be all carry out successively in the moving process of the pipe be bent at stainless steel clad plate, the translational speed of the pipe that stainless steel clad plate is bent into is 1.2m/min.
(1) tungsten electrode argon arc welding gun 3 is adopted to carry out argon tungsten-arc welding, directly weld at the pipe gap location bottom that stainless steel clad plate is bent into (i.e. basic unit's carbon steel 12 place), welding condition is as follows: weldingvoltage is 6 ~ 8V, and welding current is 100 ~ 140A, speed of welding and translational speed; Controlling the tungsten electrode argon-arc welding seam recessed degree of depth is 0.20 ~ 0.5mm, ensures the weld strength of basic unit's carbon steel 12, and reserves recessed welding space for gas metal-arc welding;
(2), after the Tig Welding of step (1) completes, move after 500mm completes nature slow cooling 4 with translational speed, by Forced water cooling hydraulic giant 5 by normal-temperature water with 0.8m
3the current of/min carry out Forced water cooling to tungsten electrode argon-arc welding seam 13, make weld seam be cooled to 60 DEG C, and Interlaminar Crack appears in the weld seam after welding to prevent gas metal-arc welding;
(3) welding slag of the tungsten electrode argon-arc welding seam 13 after step (2) Forced water cooling is removed by cleaning roller 6; On cleaning roller 6 with wire brush for removing oxide, be the welding quality of gas metal-arc welding ensureing step (4).This is because when carrying out Tig Welding, the welding slags such as the oxide around weld seam, impurity can float over face of weld, and in the scattered distribution of point-like, electric arc during gas metal-arc welding can be caused so unstable, the stability of impact welding and welding quality;
(4) on the tungsten electrode argon-arc welding seam 13 of step (3), the welding of stainless steel cover face is carried out with gas metal-arc welding welding gun 8, until final weld reinforcement is 1mm, to reduce the polishing amount of weld grinding in following process; Wherein welding condition is as follows: weldingvoltage is 20 ~ 26V, and welding current is 100 ~ 160A, and send wire speed to be 4 ~ 7m/min, speed of welding and translational speed, electrode extension is 18mm; Protective gas is: pressure is 3 ~ 7MPa, argon gas (Ar) proportion > 80%, carbon dioxide (CO
2) mist of proportion < 20%; Gas metal-arc welding adopts stainless steel welding stick, and nickel in stainless steel welding stick, chromium content are higher than the nickel in cladding stainless steel material, chromium content, the weld seam nickel that carbon steel composition and stainless steel welding stick composition in order to make up weld seam molten bath be miscible to be caused, chromium content decline, to ensure weld seam antiseptic property; The width of gas metal-arc welding weld seam 14 is greater than the width of the tungsten electrode argon-arc welding seam 13 of step (1);
(5) after the gas metal-arc welding of step (4) has welded, move 500mm with translational speed and complete nature slow cooling 9, use the water of normal temperature with 0.8m by Forced water cooling hydraulic giant 10
3the current of/min carry out Forced water cooling to gas metal-arc welding weld seam 14 makes weld seam be cooled to room temperature, so that the subsequent processing operations of tubulation can carry out smoothly, obtains the outer multiple tube of stainless steel.
The outer multiple tube of stainless steel is after following process, and with GB GB/T 10125-1997 " artificial atmosphere corrosion test salt spray test ", for standard, butt welded seam carries out neutral salt spray test test, weld seam through the neutral salt spray test of 1500 hours, non-corroding; Test by GB GB/T 246-1997 " flattening test on tube of metal method ", weld seam flawless.
Embodiment 2
As Fig. 1,2,3.
By stainless steel clad plate thick for 3.0mm to be welded, (wherein basic unit's carbon steel 12 thickness is 2.4m, stainless steel cladding 11 thickness is 0.6mm) make the outer multiple tube 1 of stainless steel to be welded by the pipe moulding process before welding procedure, be fixed on edger roll in 2 and 7, to support the outer multiple tube 1 of stainless steel to be welded to be welded, the welded gaps simultaneously controlling argon tungsten-arc welding is 0.4 ~ 1mm.Argon tungsten-arc welding, natural slow cooling, Forced water cooling, welding slag removing, gas metal-arc welding, more natural slow cooling, again Forced water cooling; be all carry out successively in the moving process of the pipe be bent at stainless steel clad plate, the translational speed of the pipe that stainless steel clad plate is bent into is 0.8m/min.
(1) tungsten electrode argon arc welding gun 3 is adopted to carry out argon tungsten-arc welding, directly weld at the pipe gap location bottom that stainless steel clad plate is bent into (i.e. basic unit's carbon steel 12 place), welding condition is as follows: weldingvoltage is 8 ~ 11V, and welding current is 180 ~ 220A, speed of welding and translational speed; Controlling the tungsten electrode argon-arc welding seam recessed degree of depth is 0.50 ~ 0.8mm, ensures the weld strength of basic unit's carbon steel 12, and reserves recessed welding space for gas metal-arc welding;
(2), after the Tig Welding of step (1) completes, move after 800mm completes nature slow cooling 4 with translational speed, by Forced water cooling hydraulic giant 5 by normal-temperature water with 1.0m
3the current of/min carry out Forced water cooling to tungsten electrode argon-arc welding seam 13, make weld seam be cooled to 100 DEG C, and Interlaminar Crack appears in the weld seam after welding to prevent gas metal-arc welding;
(3) welding slag of the tungsten electrode argon-arc welding seam 13 after step (2) Forced water cooling is removed by cleaning roller 6; On cleaning roller 6 with wire brush for removing oxide, be the welding quality of gas metal-arc welding ensureing step (4).This is because when carrying out Tig Welding, the welding slags such as the oxide around weld seam, impurity can float over face of weld, and in the scattered distribution of point-like, electric arc during gas metal-arc welding can be caused so unstable, the stability of impact welding and welding quality;
(4) on the tungsten electrode argon-arc welding seam 13 of step (3), the welding of stainless steel cover face is carried out with gas metal-arc welding welding gun 8, until final weld reinforcement is 1.2 ~ 1.50mm, to reduce the polishing amount of weld grinding in following process; Wherein welding condition is as follows: weldingvoltage is 28 ~ 33V, and welding current is 160 ~ 200A, and send wire speed to be 8 ~ 10m/min, speed of welding and translational speed, electrode extension is 10 ~ 15mm; Protective gas is: pressure is 10 ~ 15MPa, helium (He) proportion > 80%, oxygen (O
2) mist of proportion < 20%; Gas metal-arc welding adopts stainless steel welding stick, and nickel in stainless steel welding stick, chromium content are higher than the nickel in cladding stainless steel material, chromium content, the weld seam nickel that carbon steel composition and stainless steel welding stick composition in order to make up weld seam molten bath be miscible to be caused, chromium content decline, to ensure weld seam antiseptic property; The width of gas metal-arc welding weld seam 14 is greater than the width of the tungsten electrode argon-arc welding seam 13 of step (1);
(5) after the gas metal-arc welding of step (4) has welded, move 800mm with translational speed and complete nature slow cooling 9, use the water of normal temperature with 1.0m by Forced water cooling hydraulic giant 10
3the current of/min carry out Forced water cooling to gas metal-arc welding weld seam 14 makes weld seam be cooled to room temperature, so that the subsequent processing operations of tubulation can carry out smoothly, obtains the outer multiple tube of stainless steel.
The outer multiple tube of stainless steel is after following process, and with GB GB/T 10125-1997 " artificial atmosphere corrosion test salt spray test ", for standard, butt welded seam carries out neutral salt spray test test, weld seam through the neutral salt spray test of 1500 hours, non-corroding; Test by GB GB/T 246-1997 " flattening test on tube of metal method ", weld seam flawless.
Embodiment 3
As Fig. 1,2,3.
By stainless steel clad plate thick for 5.0mm to be welded, (wherein basic unit's carbon steel 12 thickness is 4mm, stainless steel cladding 11 thickness is 1mm) make the outer multiple tube 1 of stainless steel to be welded by the pipe moulding process before welding procedure, be fixed on edger roll in 2 and 7, to support the outer multiple tube 1 of stainless steel to be welded to be welded, the welded gaps simultaneously controlling argon tungsten-arc welding is 1.5 ~ 2mm.Argon tungsten-arc welding, natural slow cooling, Forced water cooling, welding slag removing, gas metal-arc welding, more natural slow cooling, again Forced water cooling; be all carry out successively in the moving process of the pipe be bent at stainless steel clad plate, the translational speed of the pipe that stainless steel clad plate is bent into is 0.3m/min.
(1) tungsten electrode argon arc welding gun 3 is adopted to carry out argon tungsten-arc welding, directly weld at the pipe gap location bottom that stainless steel clad plate is bent into (i.e. basic unit's carbon steel 12 place), welding condition is as follows: weldingvoltage is 12 ~ 18V, and welding current is 260 ~ 350A, speed of welding and translational speed; Controlling the tungsten electrode argon-arc welding seam recessed degree of depth is 0.80 ~ 1.00mm, ensures the weld strength of basic unit's carbon steel 12, and reserves recessed welding space for gas metal-arc welding;
(2), after the Tig Welding of step (1) completes, move after 200mm completes nature slow cooling 4 with translational speed, by Forced water cooling hydraulic giant 5 by normal-temperature water with 0.3m
3the current of/min carry out Forced water cooling to tungsten electrode argon-arc welding seam 13, make weld seam be cooled to 20 DEG C, and Interlaminar Crack appears in the weld seam after welding to prevent gas metal-arc welding;
(3) welding slag of the tungsten electrode argon-arc welding seam 13 after step (2) Forced water cooling is removed by cleaning roller 6; On cleaning roller 6 with wire brush for removing oxide, be the welding quality of gas metal-arc welding ensureing step (4).This is because when carrying out Tig Welding, the welding slags such as the oxide around weld seam, impurity can float over face of weld, and in the scattered distribution of point-like, electric arc during gas metal-arc welding can be caused so unstable, the stability of impact welding and welding quality;
(4) on the tungsten electrode argon-arc welding seam 13 of step (3), the welding of stainless steel cover face is carried out with gas metal-arc welding welding gun 8, until final weld reinforcement is 1 ~ 1.3mm, to reduce the polishing amount of weld grinding in following process; Wherein welding condition is as follows: weldingvoltage is 34 ~ 36V, and welding current is 220 ~ 250A, and send wire speed to be 10 ~ 20m/min, speed of welding and translational speed, electrode extension is 8 ~ 10mm; Protective gas is: pressure is 8 ~ 10MPa, argon gas (Ar) proportion > 80%, carbon dioxide (CO
2) mist of proportion < 20%; Gas metal-arc welding adopts stainless steel welding stick, and nickel in stainless steel welding stick, chromium content are higher than the nickel in cladding stainless steel material, chromium content, the weld seam nickel that carbon steel composition and stainless steel welding stick composition in order to make up weld seam molten bath be miscible to be caused, chromium content decline, to ensure weld seam antiseptic property; The width of gas metal-arc welding weld seam 14 is greater than the width of the tungsten electrode argon-arc welding seam 13 of step (1);
(5) after the gas metal-arc welding of step (4) has welded, move 200mm with translational speed and complete nature slow cooling 9, use the water of normal temperature with 0.3m by Forced water cooling hydraulic giant 10
3the current of/min carry out Forced water cooling to gas metal-arc welding weld seam 14 makes weld seam be cooled to room temperature, so that the subsequent processing operations of tubulation can carry out smoothly, obtains the outer multiple tube of stainless steel.
The outer multiple tube of stainless steel is after following process, and with GB GB/T 10125-1997 " artificial atmosphere corrosion test salt spray test ", for standard, butt welded seam carries out neutral salt spray test test, weld seam through the neutral salt spray test of 1500 hours, non-corroding; Test by GB GB/T 246-1997 " flattening test on tube of metal method ", weld seam flawless.
Claims (10)
1. a tubulation welding method for the outer multiple tube of stainless steel, is characterized in that through following each step:
(1) adopt argon tungsten-arc welding, directly weld in the pipe gap location bottom that stainless steel clad plate is bent into, controlling the recessed degree of depth of tungsten electrode argon-arc welding seam is 0.20 ~ 1.00mm;
(2) after the Tig Welding of step (1) completes, after natural slow cooling, by normal-temperature water with 0.3 ~ 1.0m
3the current butt welded seam of/min carries out Forced water cooling;
(3) the weld seam welding slag after step (2) Forced water cooling is removed;
(4) on the weld seam of step (3), stainless steel cover face welding is carried out with gas metal-arc welding, until final weld reinforcement is 1 ~ 1.50mm;
(5) after the gas metal-arc welding of step (4) has welded, through natural slow cooling, with the water of normal temperature with 0.3 ~ 1.0m
3the current butt welded seam of/min carries out Forced water cooling, obtains the outer multiple tube of stainless steel.
2. tubulation welding method according to claim 1, is characterized in that: the welding of described step (1) carries out in the moving process of the pipe be bent at stainless steel clad plate, and translational speed is 0.3 ~ 2.0m/min.
3. tubulation welding method according to claim 2, is characterized in that: the pipe gap of described step (1) is 0.2 ~ 2mm.
4. tubulation welding method according to claim 2, is characterized in that: the weldingvoltage of the argon tungsten-arc welding of described step (1) is 6 ~ 18V, and welding current is 100 ~ 350A, speed of welding and translational speed.
5. tubulation welding method according to claim 2, is characterized in that: the removing of described step (3) is cleared up by cleaning roller butt welded seam.
6. tubulation welding method according to claim 2, it is characterized in that: the welding condition of the gas metal-arc welding of described step (4) is as follows: weldingvoltage is 20 ~ 36V, welding current is 100 ~ 250A, wire speed is sent to be 4 ~ 20m/min, speed of welding and translational speed, electrode extension is 8 ~ 18mm; Protective gas is: pressure is the mist of 3 ~ 15MPa, argon gas or helium proportion > 80%, carbon dioxide or oxygen proportion < 20%.
7. tubulation welding method according to claim 2, is characterized in that: the gas metal-arc welding of described step (4) adopts stainless steel welding stick, and nickel in stainless steel welding stick, chromium content are higher than the nickel in cladding stainless steel material, chromium content.
8. tubulation welding method according to claim 2, is characterized in that: the weld width of the gas metal-arc welding of described step (4) is greater than the width of the tungsten electrode argon-arc welding seam of step (1).
9. tubulation welding method according to claim 2, it is characterized in that: the natural slow cooling in described step (2) and step (5) is: the pipe that stainless steel clad plate is bent into the translational speed of 0.3 ~ 2.0m/min, mobile 500 ± 300mm and naturally cooling of completing.
10. tubulation welding method according to claim 2, is characterized in that: the Forced water cooling of described step (2) makes weld seam be cooled to 60 ± 40 DEG C; The Forced water cooling of described step (5) makes weld seam be cooled to room temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410758154.7A CN104607773B (en) | 2014-12-11 | 2014-12-11 | Tubulation welding method of stainless steel outer composite tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410758154.7A CN104607773B (en) | 2014-12-11 | 2014-12-11 | Tubulation welding method of stainless steel outer composite tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104607773A true CN104607773A (en) | 2015-05-13 |
| CN104607773B CN104607773B (en) | 2017-01-18 |
Family
ID=53142561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410758154.7A Active CN104607773B (en) | 2014-12-11 | 2014-12-11 | Tubulation welding method of stainless steel outer composite tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104607773B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105057852A (en) * | 2015-08-21 | 2015-11-18 | 西安向阳航天材料股份有限公司 | Manufacturing method for 2205 dual-phase steel thin-wall welded pipe |
| CN106808068A (en) * | 2017-01-11 | 2017-06-09 | 上海交通大学 | A kind of method that stainless steel composite pipe or composite plate dock MIG+TIG two-sided weldings |
| CN107443016A (en) * | 2017-08-01 | 2017-12-08 | 云南昆钢新型复合材料开发有限公司 | A kind of ultra-thin interior combined helical pipe tubulation welding method |
| CN108890087A (en) * | 2018-06-28 | 2018-11-27 | 山西太钢不锈钢股份有限公司 | A kind of welding method of S32750 super-duplex stainless steel welded tube |
| CN114952069A (en) * | 2022-05-30 | 2022-08-30 | 攀钢集团西昌钢钒有限公司 | Pipeline welding joint structure and welding method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06285640A (en) * | 1993-03-31 | 1994-10-11 | Nippon Steel Corp | Inner surface welding method for clad steel tube |
| CN101927390A (en) * | 2009-06-23 | 2010-12-29 | 上海沪工电焊机制造有限公司 | Method for welding circumferential weld between metal thin-wall clad layer and base layer of clad pipe |
| CN102513665A (en) * | 2011-12-09 | 2012-06-27 | 南车眉山车辆有限公司 | Method for welding joints of composite tube |
| CN103537776A (en) * | 2013-10-18 | 2014-01-29 | 云南昆钢新型复合材料开发有限公司 | One-step forming straight welding method for stainless steel outer composite tubes |
| CN104028959A (en) * | 2014-06-05 | 2014-09-10 | 鞍山亚盛特钢有限公司 | Welding method for stainless steel composite material |
-
2014
- 2014-12-11 CN CN201410758154.7A patent/CN104607773B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06285640A (en) * | 1993-03-31 | 1994-10-11 | Nippon Steel Corp | Inner surface welding method for clad steel tube |
| CN101927390A (en) * | 2009-06-23 | 2010-12-29 | 上海沪工电焊机制造有限公司 | Method for welding circumferential weld between metal thin-wall clad layer and base layer of clad pipe |
| CN102513665A (en) * | 2011-12-09 | 2012-06-27 | 南车眉山车辆有限公司 | Method for welding joints of composite tube |
| CN103537776A (en) * | 2013-10-18 | 2014-01-29 | 云南昆钢新型复合材料开发有限公司 | One-step forming straight welding method for stainless steel outer composite tubes |
| CN104028959A (en) * | 2014-06-05 | 2014-09-10 | 鞍山亚盛特钢有限公司 | Welding method for stainless steel composite material |
Non-Patent Citations (1)
| Title |
|---|
| 张立辉: "16MnR+00Cr17Ni14Mo2复合管的焊接", 《工程焊接》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105057852A (en) * | 2015-08-21 | 2015-11-18 | 西安向阳航天材料股份有限公司 | Manufacturing method for 2205 dual-phase steel thin-wall welded pipe |
| CN106808068A (en) * | 2017-01-11 | 2017-06-09 | 上海交通大学 | A kind of method that stainless steel composite pipe or composite plate dock MIG+TIG two-sided weldings |
| CN106808068B (en) * | 2017-01-11 | 2019-06-07 | 上海交通大学 | A kind of method of stainless steel composite pipe or composite plate docking MIG+TIG two-sided welding |
| CN107443016A (en) * | 2017-08-01 | 2017-12-08 | 云南昆钢新型复合材料开发有限公司 | A kind of ultra-thin interior combined helical pipe tubulation welding method |
| CN108890087A (en) * | 2018-06-28 | 2018-11-27 | 山西太钢不锈钢股份有限公司 | A kind of welding method of S32750 super-duplex stainless steel welded tube |
| CN114952069A (en) * | 2022-05-30 | 2022-08-30 | 攀钢集团西昌钢钒有限公司 | Pipeline welding joint structure and welding method |
| CN114952069B (en) * | 2022-05-30 | 2024-04-02 | 攀钢集团西昌钢钒有限公司 | Pipeline welding joint structure and welding method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104607773B (en) | 2017-01-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104607773A (en) | Tubulation welding method of stainless steel outer composite tube | |
| CN103801808B (en) | Narrow clearance melting electrode metal active gas arc welding technique | |
| CN105127566B (en) | The complete penetraction and fusion in welding welding method of big thickness carbon steel stainless steel clad plate | |
| CN102172814B (en) | Method for manufacturing longitudinal submerged arc welded pipe | |
| CN102528238B (en) | Manual argon-arc welding process of tungsten electrode | |
| CN102248267A (en) | Thick-wall chromium-molybdenum steel pipeline submerged arc welding technology | |
| CN105382378A (en) | Surfacing welding method for abraded large roll shaft | |
| CN110961763B (en) | Method for welding bimetal composite pipe fitting and pipeline | |
| CN103990894A (en) | One-side-welding and two-side-forming welding technology for pipe | |
| CN103357991A (en) | Horizontal fixed welding technology for aluminium process pipeline | |
| CN102615405B (en) | Welding method of stainless steel composite plates | |
| CN103495795A (en) | Gas protection bottoming automatic welding process of carbon steel pipeline consumable electrode | |
| CN103464873B (en) | Electric-arc welding process for Ti alloy and nickel-base high-temperature alloy | |
| CN104416292A (en) | Gas pressure welding procedure for reinforcing steel bar | |
| CN101590572A (en) | The vertical double-sided double-arc plasma symmetry welding method | |
| CN104028959A (en) | Welding method for stainless steel composite material | |
| CN112171029A (en) | Double-wire submerged-arc welding back-gouging-free welding method for boiler drum | |
| CN101695783B (en) | Automatic control welding process for scaffold short steel pipes for construction | |
| CN104400200A (en) | Flash butt welding process for high-pressure boiler pipeline | |
| CN107234319B (en) | Welding process for coiled pipe of thin stainless steel corrugated pipe | |
| CN104708179B (en) | The application in implementing thick plates of double TIG weld methods | |
| CN105364272A (en) | Carbon steel tube welding process | |
| CN106624614B (en) | A kind of manufacturing process of the high-strength welded tube of heavy caliber thick wall | |
| CN104439672A (en) | High frequency prewelding technology of longitudinal submerged arc welded pipe | |
| CN203778936U (en) | Device for welding high-nitrogen austenite stainless steel medium plate |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |