CN101733508A - Wind tower carbon-free plane welding technology - Google Patents
Wind tower carbon-free plane welding technology Download PDFInfo
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- CN101733508A CN101733508A CN201010101510A CN201010101510A CN101733508A CN 101733508 A CN101733508 A CN 101733508A CN 201010101510 A CN201010101510 A CN 201010101510A CN 201010101510 A CN201010101510 A CN 201010101510A CN 101733508 A CN101733508 A CN 101733508A
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Abstract
The invention discloses a wind tower carbon-free plane welding technology, comprising the following steps: removing the gas cutting oxide side and other pollutants on the surface and periphery of the welding line; adopting positioned welding to position at the wind tower joint; preheating before welding; bottoming with CO2 welding at the inner side of the wind tower joint; adopting submerged-arc welding at the outer side of the wind tower joint; polishing the bottoming surface to polish the bulged part of the position welding to be transited smoothly with the bottoming surface; adopting submerged-arc welding at the bottoming layer; aligning the center of the welding wire with the seam; adopting submerged-arc welding from the inner side of the wind tower to the cover surface; and adopting submerged-arc welding at the cover surface of the outer side of the wind tower. The invention adopts carbon-free plane welding technology, carbon plane is not needed at the inner side and only a certain amount of polishing is required, thus reducing the harm of smoke and arc light on human body, reducing repair rate, shortening welding time, reducing assistant polishing amount, and ensuring manufacturing schedule and ensuring product quality.
Description
Technical field
The present invention relates to a kind of welding procedure, specifically relate to a kind of wind tower carbon-free plane welding technology.
Background technology
In the conventional submerged welding process, in order to guarantee the soldering tip of joint, generally all be after one side is welded a part, back root cleaning is carried out follow-up welding, again for circular weld, adopt the mode of back chipping to weld, can bring a series of problem: how first-selection selects the back chipping direction, if select outside back chipping, will have potential safety hazard; If adopt inboard back chipping can cause volume of smoke, noise and arc light severe overweight, reprocess the environment very severe, and carbon digs process has very high requirement to the operative skill of welding operating personnel, general welding operation personnel are difficult to get hold of, winding the turning round of weld seam that causes back chipping, come influence for follow-up rewelding tape splicing, carbon plane process is being mingled with a large amount of carbon and is invading mother metal, the whole circle education of the butt welded seam that often requires a great deal of time after carbon digs polishing brings a large amount of extra auxiliary consumption to whole welding process; Production efficiency is lower, and supplementary costs is higher, and exploring a kind of technology efficiently is a primary task.
Summary of the invention
Goal of the invention:, the invention provides a kind of simple to operate, rational wind tower carbon-free plane welding technology of welding sequence in order to solve the deficiencies in the prior art.
Technical scheme: in order to realize above purpose, wind tower carbon-free plane welding technology of the present invention, concrete steps are as follows:
(a) remove face of weld and reach gas cutting oxide side and other pollutants on every side;
(b) the tack welding location is adopted in the Feng Ta joint, and the length of every section tack welding is more than or equal to 50mm, and the tack welding spacing is less than 300mm;
(c) weld preheating goes out motherboard with weld seam and is heated to 110 ℃-200 ℃;
(d) wind tower joint inboard feels secure with the CO2 weldering;
(e) wind tower joint outside submerged-arc welding;
(f) polishing bottoming face will locate and be welded the raised area and be ground to bottoming face and seamlessly transit;
(g) prime coat adopts submerged-arc welding; Welding wire centrally aligned splicing seams;
(h) wind tower inboard to capping adopts submerged-arc welding;
(i) wind tower outside capping adopts submerged-arc welding.
In the step (d), welding wire adopts TM-58; Welding wire specification: 1.2mm; Welding current 240-390A; Weldingvoltage 32-35V; Speed of welding: 3.5-7mm/s; Welding road number is 1.
In the step (e), at first employing is bought arc-welding and is welded 1 road: welding wire specification: 4mm; Welding current 500-600A; Weldingvoltage 28-31V; Speed of welding: 5.5-6.6mm/s; And then use submerged-arc welding to weld the 2-4 road: welding wire specification: 4mm; Welding current 600-700A; Weldingvoltage 30-35V; Speed of welding: 6.4-9.7mm/s.
In the step (g), welding wire specification: 4mm is adopted in welding; Welding current 750-780A; Weldingvoltage 29-34V; Speed of welding: 5.8-7mm/s; Welding road number is 2.
In the step (h), welding wire specification: 4mm is adopted in welding; Welding current 600-700A; Weldingvoltage 29-34V; Speed of welding: 6.4-9.7mm/s; Welding road number is more than or equal to 3 roads.
In the step (i), welding wire specification: 4mm is adopted in welding; Welding current 600-700A; Weldingvoltage 29-34V; Speed of welding: 6.4-9.7mm/s; Welding road number is more than or equal to 5 roads.
Beneficial effect: wind tower carbon-free plane welding technology provided by the invention compared with prior art, has the following advantages: adopted carbon-free plane welding technology, the inboard does not need carbon to dig, and only need carry out a certain amount of polishing, has reduced the injury to human body of flue dust and arc light; Reduced repair rate; Shortened weld interval; Reduced auxiliary polishing amount; After adopting wind tower carbon-free plane welding technology of the present invention, can directly weld the inboard after the completion, adopt rational welding parameter, the penetration prime coat makes the inner and mutual penetration of the outside first road weld seam of weld seam; Not only guaranteed manufacturing schedule but also guaranteed product quality; Carbon digs and the operation of polishing in the welding process owing to saved, and the weld seam reverse side still is original groove depth, has saved welding material.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, further illustrate the present invention, should understand these embodiment only is used to the present invention is described and is not used in and limit the scope of the invention, after having read the present invention, those skilled in the art all fall within the application's claims institute restricted portion to the modification of the various equivalent form of values of the present invention.
Embodiment 1
Adopt wind tower carbon-free plane welding technology welding V90 section of foundation flange, operate according to following steps:
(a) remove face of weld and reach gas cutting oxide side and other pollutants on every side;
(b) the tack welding location is adopted in the Feng Ta joint, every section tack welding be 100mm, the tack welding spacing is 100mm;
(c) weld preheating goes out motherboard with weld seam and is heated to 110 ℃;
(d) wind tower joint inboard feels secure with the CO2 weldering; CO2 gas purity 99%;
(e) wind tower joint outside submerged-arc welding;
(f) polishing bottoming face will locate and be welded the raised area and be ground to bottoming face and seamlessly transit;
(g) prime coat adopts submerged-arc welding; Welding wire centrally aligned splicing seams;
(h) wind tower inboard to capping adopts submerged-arc welding;
(i) wind tower outside capping adopts submerged-arc welding.
In the welding process, solder flux adopts: SJ101; Welding process parameter is as follows:
| Welding sequence | Corresponding step | Welding is reciprocal | The welding wire model | Specification (mm) | Welding current (A) | Weldingvoltage (V) | Speed of welding (mm/s) |
| ??1 | ??(d) | Interior 1 (bottoming) | ??TM-58 | ??1.2 | ??240 | ??32 | ??3.5 |
| ??2 | ??(e) | Outer 1 | ??H10Mn2 | ??4 | ??500 | ??28 | ??5.5 |
| ??3 | ??(e) | Outer 2 | ??H10Mn2 | ??4 | ??600 | ??30 | ??6.4 |
| ??4 | ??(g) | Interior 2 | ??H10Mn2 | ??4 | ??750 | ??29 | ??5.8 |
| ??5 | ??(h) | Interior 3 | ??H10Mn2 | ??4 | ??600 | ??29 | ??6.4 |
| Welding sequence | Corresponding step | Welding is reciprocal | The welding wire model | Specification (mm) | Welding current (A) | Weldingvoltage (V) | Speed of welding (mm/s) |
| ??6 | ??(i) | Outer 5 | ??H10Mn2 | ??4 | ??600 | ??29 | ??6.4 |
Be 20 hours used weld interval
Embodiment 2
Other is identical with embodiment 1, and concrete parameter is as follows:
| Welding sequence | Corresponding step | Welding is reciprocal | The welding wire model | Specification (mm) | Welding current (A) | Weldingvoltage (V) | Speed of welding (mm/s) |
| ??1 | ??(d) | Interior 1 (bottoming) | ??TM-58 | ??1.2 | ??260 | ??34 | ??5.5 |
| ??2 | ??(e) | Outer 1 | ??H10Mn2 | ??4 | ??550 | ??29 | ??6 |
| ??3 | ??(e) | Outer 3 | ??H10Mn2 | ??4 | ??650 | ??32 | ??8 |
| ??4 | ??(g) | Interior 2 | ??H10Mn2 | ??4 | ??760 | ??31 | ??6.5 |
| ??5 | ??(h) | Interior 5 | ??H10Mn2 | ??4 | ??640 | ??32 | ??7.6 |
| ??6 | ??(i) | Outer 8 | ??H10Mn2 | ??4 | ??650 | ??32 | ??8.2 |
18 hours used weld intervals.
Embodiment 3
Other is identical with embodiment 1, and concrete parameter is as follows:
| Welding sequence | Corresponding step | Welding is reciprocal | The welding wire model | Specification (mm) | Welding current (A) | Weldingvoltage (V) | Speed of welding (mm/s) |
| ??1 | ??(d) | Interior 1 (bottoming) | ??TM-58 | ??1.2 | ??290 | ??35 | ??7 |
| ??2 | ??(e) | Outer 1 | ??H10Mn2 | ??4 | ??600 | ??31 | ??6.6 |
| ??3 | ??(e) | Outer 3 | ??H10Mn2 | ??4 | ??700 | ??35 | ??9.7 |
| ??4 | ??(g) | Interior 2 | ??H10Mn2 | ??4 | ??780 | ??34 | ??7 |
| ??5 | ??(h) | Interior 5 | ??H10Mn2 | ??4 | ??700 | ??34 | ??9.7 |
| Welding sequence | Corresponding step | Welding is reciprocal | The welding wire model | Specification (mm) | Welding current (A) | Weldingvoltage (V) | Speed of welding (mm/s) |
| ??6 | ??(i) | Outer 8 | ??H10Mn2 | ??4 | ??700 | ??34 | ??9.7 |
16 hours used weld intervals.
Claims (6)
1. wind tower carbon-free plane welding technology, it is characterized in that: described wind tower carbon-free plane welding technology concrete steps are as follows:
(a) remove face of weld and reach gas cutting oxide side and other pollutants on every side;
(b) the tack welding location is adopted in the Feng Ta joint, and the length of every section tack welding is more than or equal to 50mm, and the tack welding spacing is less than 300mm;
(c) weld preheating goes out motherboard with weld seam and is heated to 110 ℃-200 ℃;
(d) wind tower joint inboard feels secure with the CO2 weldering;
(e) wind tower joint outside submerged-arc welding;
(f) polishing bottoming face will locate and be welded the raised area and be ground to bottoming face and seamlessly transit;
(g) prime coat adopts submerged-arc welding; Welding wire centrally aligned splicing seams;
(h) wind tower inboard to capping adopts submerged-arc welding;
(i) wind tower outside capping adopts submerged-arc welding.
2. wind tower carbon-free plane welding technology according to claim 1 is characterized in that: in the step (d), welding wire adopts TM-58; Welding wire specification: 1.2mm; Welding current 240-390A; Weldingvoltage 32-35V; Speed of welding: 3.5-7mm/s; Welding road number is 1.
3. wind tower carbon-free plane welding technology according to claim 1 is characterized in that: in the step (e), at first employing is bought arc-welding and is welded 1 road: welding wire specification: 4mm; Welding current 500-600A; Weldingvoltage 28-31V; Speed of welding: 5.5-6.6mm/s; And then use submerged-arc welding to weld the 2-4 road: welding wire specification: 4mm; Welding current 600-700A; Weldingvoltage 30-35V; Speed of welding: 6.4-9.7mm/s.
4. wind tower carbon-free plane welding technology according to claim 1 is characterized in that: in the step (g), welding wire specification: 4mm is adopted in welding; Welding current 750-780A; Weldingvoltage 29-34V; Speed of welding: 5.8-7mm/s; Welding road number is 2.
5. wind tower carbon-free plane welding technology according to claim 1 is characterized in that: in the step (h), welding wire specification: 4mm is adopted in welding; Welding current 600-700A; Weldingvoltage 29-34V; Speed of welding: 6.4-9.7mm/s; Welding road number is more than or equal to 3 roads.
6. wind tower carbon-free plane welding technology according to claim 1 is characterized in that: in the step (i), welding wire specification: 4mm is adopted in welding; Welding current 600-700A; Weldingvoltage 29-34V; Speed of welding: 6.4-9.7mm/s; Welding road number is more than or equal to 5 roads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010101510A CN101733508A (en) | 2010-01-27 | 2010-01-27 | Wind tower carbon-free plane welding technology |
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|---|---|---|---|
| CN201010101510A CN101733508A (en) | 2010-01-27 | 2010-01-27 | Wind tower carbon-free plane welding technology |
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| CN101733508A true CN101733508A (en) | 2010-06-16 |
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| CN201010101510A Pending CN101733508A (en) | 2010-01-27 | 2010-01-27 | Wind tower carbon-free plane welding technology |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101885099A (en) * | 2010-07-16 | 2010-11-17 | 潍坊五洲风电设备有限公司 | Welding process applying submerged automatic arc welding to wind power generation tower foundation seat |
| CN102699499A (en) * | 2012-06-29 | 2012-10-03 | 苏州张扬能源科技有限公司 | Welding technology of wind power generation tower |
| CN103273209A (en) * | 2013-06-05 | 2013-09-04 | 天顺风能(苏州)股份有限公司 | Welding process of outside wind tower U-shaped grooves |
| CN104801835A (en) * | 2015-02-26 | 2015-07-29 | 胜利油田龙玺石油工程服务有限责任公司 | Method for welding without back chipping for ice resisting and water resisting pipe joint |
| CN106984912A (en) * | 2017-05-11 | 2017-07-28 | 江苏苏沃尚新材料科技有限公司 | The carbon-free plane wind tower welding procedure of flux-cored wire bottoming |
| CN110091037A (en) * | 2019-04-30 | 2019-08-06 | 江苏海力风电设备科技股份有限公司 | Offshore wind farm tower elastic support reinforced welding new process |
-
2010
- 2010-01-27 CN CN201010101510A patent/CN101733508A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101885099A (en) * | 2010-07-16 | 2010-11-17 | 潍坊五洲风电设备有限公司 | Welding process applying submerged automatic arc welding to wind power generation tower foundation seat |
| CN102699499A (en) * | 2012-06-29 | 2012-10-03 | 苏州张扬能源科技有限公司 | Welding technology of wind power generation tower |
| CN103273209A (en) * | 2013-06-05 | 2013-09-04 | 天顺风能(苏州)股份有限公司 | Welding process of outside wind tower U-shaped grooves |
| CN104801835A (en) * | 2015-02-26 | 2015-07-29 | 胜利油田龙玺石油工程服务有限责任公司 | Method for welding without back chipping for ice resisting and water resisting pipe joint |
| CN106984912A (en) * | 2017-05-11 | 2017-07-28 | 江苏苏沃尚新材料科技有限公司 | The carbon-free plane wind tower welding procedure of flux-cored wire bottoming |
| CN110091037A (en) * | 2019-04-30 | 2019-08-06 | 江苏海力风电设备科技股份有限公司 | Offshore wind farm tower elastic support reinforced welding new process |
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Open date: 20100616 |