CN101733526A - Process of manual submerged-arc welding in welding position of doorframe and tower section - Google Patents
Process of manual submerged-arc welding in welding position of doorframe and tower section Download PDFInfo
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- CN101733526A CN101733526A CN201010101508A CN201010101508A CN101733526A CN 101733526 A CN101733526 A CN 101733526A CN 201010101508 A CN201010101508 A CN 201010101508A CN 201010101508 A CN201010101508 A CN 201010101508A CN 101733526 A CN101733526 A CN 101733526A
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Abstract
The invention discloses a process of manual submerged-arc welding in the welding position of a doorframe and a tower section. The process comprises the following specific operation steps of: embedding a doorframe of a wind tower in a tower cylinder; removing contaminants on the weld surface of the wind tower and a surrounding gas-cut oxidized surface; welding the front doorframe of the wind tower and the outer side of the tower body corner by adopting the automatic submerged-arc welding; and welding the doorframe of the wind tower and the inner side of the tower body corner by adopting the automatic submerged-arc welding again. By adopting a more reasonable welding sequence, the process of the manual submerged-arc welding in the welding position of a doorframe and a tower section does not need the backstep welding or the backstep welding in a small area, thereby achieving the higher qualification rate of the welding; and simultaneously, the invention improves the work environment of welders, enhances the production and work efficiency, shortens the production cycle and lowers the manufacturing cost.
Description
Technical field
The present invention relates to a kind of welding procedure, specifically relate to a kind of manual submerged-arc welding process that welds wind pyller frame and tower body angle welding.
Background technology
In the manufacturing process of wind tower; the welded corner joint of wind pyller frame and tower body plate; because the particularity of welding position can not adopt traditional Lincoln weld mode, can only adopt conventional welding method: manual arc welding or carbon dioxide gas arc welding welding.Conventional welding method welder welding surroundings is poor, and weld interval is long, and the craftsmanship has relatively high expectations to welding, and the little welding of the deposited amount of the welding method single track road number of the special routine of doorframe present position is more, increases the generation of weld defect easily; Therefore adopt conventional welding method welding production cost higher in this position, production efficiency is lower.And almost completely be tied around the wind pyller frame after the assembling point welds, doorframe is different with the tower body heat-sinking capability, extremely is easy to generate welding stress, and the conventional deposited cross section of welding method single-pass welding is less, is easy to soldered stress drawing crack line; Once the weld crack generation of defects will spend a large amount of non-cutting times and reprocess, even reach doorframe of welding and reprocess time loss more than 3 times.
Summary of the invention
Goal of the invention:, the invention provides a kind of simple to operate, welding sequence and reasonably weld the manual submerged-arc welding process of wind pyller frame and tower body angle welding in order to solve the deficiencies in the prior art.
Technical scheme: in order to realize above purpose, doorframe of the present invention and tower save the manual submerged-arc welding process in welding position, and this technology concrete operations step that is used for wind pyller frame and tower body welded corner joint is as follows:
(a) wind pyller frame is embedded in the tower tube; Be about in the form embedding end section tower tube of tower body with T connector;
(b) pollutant around removal wind tower face of weld reaches on the gas cutting oxide side;
(c) weld preheating is heated to 65 ℃-80 ℃ with around the weld seam;
(d) the inboard CO2 of the employing weldering in wind pyller frame and tower body angle feels secure;
(e) Lincoln weld is adopted in wind pyller frame and the tower body angle outside;
(f) wind pyller frame and inboard, tower body angle are adopted Lincoln weld once more.
Wherein, in the step (c), welding wire adopts: TM-58.
The manual submerged-arc welding process of doorframe of the present invention and tower joint welding position adopts mechanical type submerged arc welding gun, this mechanical type submerged arc welding gun is provided with the directional wheel of guiding welding, do not need the face shield of taking along during welding, as long as two hands are held welding gun, vertically advance along groove and to get final product, need not be according to the such arc manipulation gesture of conventional welding method, and adopt less welding wire just can reach the effect of submerged-arc welding.
During welding, welding process parameter is as follows:
Beneficial effect: the manual submerged-arc welding process of a kind of doorframe provided by the invention and tower joint welding position, compared with prior art, have the following advantages: owing to adopted more rational welding sequence of the present invention, need to carry out backstep welding during welding hardly, or backstep welding among a small circle, the removability of slag of welding is protected the many of weldering fashion than gas, has reduced welding non-cutting time greatly, and solder yield is higher; Adopt the manual submerged-arc welding process in doorframe of the present invention and tower joint welding position, operating personnel need not to wear face shield and welding special gloves in the welding process, situation occurs also not have weld fumes and splash etc., improved welder's working environment, enhance productivity, reduction has reduced the probability that weld defect produces to the requirement of craftsmanship's level; Thereby operating efficiency is provided, has shortened the production cycle, reduced production cost.
Description of drawings
Fig. 1 is the structural representation of bottom doorframe among the present invention;
Fig. 2 is welding inside cover surface state figure among the present invention.
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
The manual submerged-arc welding process of the doorframe of welding wind pyller frame and tower body welded corner joint and tower joint welding position, its concrete operations step is as follows:
(a) with splicing the pyller frame that becomes a common practice after the steel plate bending of 60MM, wind pyller frame is embedded in the tower tube; Be about to tower body with in the form embedding end section tower tube of T connector (as shown in Figure 1 and Figure 2);
(b) pollutant around removal wind tower face of weld reaches on the gas cutting oxide side;
(c) weld preheating is heated to 70 ℃ with around the weld seam;
(d) the inboard CO2 of the employing weldering in wind pyller frame and tower body angle feels secure; CO2 purity is 99%; Welding wire adopts TM-58;
(e) Lincoln weld is adopted in wind pyller frame and the tower body angle outside;
(f) wind pyller frame and inboard, tower body angle are adopted Lincoln weld once more;
During welding, adopt 600A, 4.5 rice mechanical type submerged arc welding gun increases directional wheel channeling conduct welding on the welding gun, welding gun is equipped with LN-9 wire-feed motor, 2.4M wire feed rolls, solder flux bucket and wire reel, machine-walking device and machine-walking Setup Controller in order to the transmission of control welding wire and solder flux, are regulated the wire feed rate of welding, weldingvoltage, the air pressure on weldering test tube road.
During welding, carry out according to following parameter:
Embodiment 2,
Other is identical with embodiment 1, and welding process parameter is as follows:
Embodiment 3,
Other is identical with embodiment 1, and welding process parameter is as follows:
Claims (3)
1. the manual submerged-arc welding process in doorframe and tower joint welding position, it is characterized in that: this technology concrete operations step that is used for wind pyller frame and tower body welded corner joint is as follows:
(a) wind pyller frame is embedded in the tower tube;
(b) pollutant around removal wind tower face of weld reaches on the gas cutting oxide side;
(c) weld preheating is heated to 65 ℃-80 ℃ with around the weld seam;
(d) the inboard CO2 of the employing weldering in wind pyller frame and tower body angle feels secure;
(e) Lincoln weld is adopted in wind pyller frame and the tower body angle outside;
(f) wind pyller frame and inboard, tower body angle are adopted Lincoln weld once more.
2. the manual submerged-arc welding process of doorframe according to claim 1 and tower joint welding position, it is characterized in that: welding wire adopts in the step (c): TM-58.
3. the manual submerged-arc welding process of doorframe according to claim 1 and tower joint welding position, it is characterized in that: the manual submerged-arc welding process of described doorframe and tower joint welding position adopts mechanical type submerged arc welding gun, and this mechanical type submerged arc welding gun is provided with the directional wheel of guiding welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010101508A CN101733526A (en) | 2010-01-27 | 2010-01-27 | Process of manual submerged-arc welding in welding position of doorframe and tower section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010101508A CN101733526A (en) | 2010-01-27 | 2010-01-27 | Process of manual submerged-arc welding in welding position of doorframe and tower section |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101733526A true CN101733526A (en) | 2010-06-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201010101508A Pending CN101733526A (en) | 2010-01-27 | 2010-01-27 | Process of manual submerged-arc welding in welding position of doorframe and tower section |
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Cited By (3)
| 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 |
| CN105563087A (en) * | 2015-12-08 | 2016-05-11 | 中航虹波风电设备有限公司 | Wind tower manhole door and doorframe assembly method |
| CN106002008A (en) * | 2016-06-07 | 2016-10-12 | 中国水电四局(酒泉)新能源装备有限公司 | Method for welding door frame of ultra-low-temperature high-power wind turbine tower |
-
2010
- 2010-01-27 CN CN201010101508A patent/CN101733526A/en active Pending
Cited By (4)
| 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 |
| CN105563087A (en) * | 2015-12-08 | 2016-05-11 | 中航虹波风电设备有限公司 | Wind tower manhole door and doorframe assembly method |
| CN106002008A (en) * | 2016-06-07 | 2016-10-12 | 中国水电四局(酒泉)新能源装备有限公司 | Method for welding door frame of ultra-low-temperature high-power wind turbine tower |
| CN106002008B (en) * | 2016-06-07 | 2017-11-07 | 中国水电四局(酒泉)新能源装备有限公司 | A kind of ultralow temperature high-power wind turbine tower door frame welding method |
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Open date: 20100616 |