CN100484700C - Automatic manufacturing technique of large sized steel pipe - Google Patents
Automatic manufacturing technique of large sized steel pipe Download PDFInfo
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- CN100484700C CN100484700C CNB2005100203967A CN200510020396A CN100484700C CN 100484700 C CN100484700 C CN 100484700C CN B2005100203967 A CNB2005100203967 A CN B2005100203967A CN 200510020396 A CN200510020396 A CN 200510020396A CN 100484700 C CN100484700 C CN 100484700C
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Abstract
The technological process of producing large steel pipe includes the steps of: marking in the steel plate, cutting material, machining bevel, winding into tile-shaped plate, inspection, transportation, fixing, welding longitudinal seam, correcting deformation, installing reinforcing ring, welding, assembling pipe sections into long section, welding ring seam, inspection and anticorrosive treatment. The present invention has the advantages of capacity of producing very large size steel pipes, high efficiency, lowered comprehensive cost, etc.
Description
The present invention relates to a kind of large-scale steel pipe manufacturing process of forming by at least two arc tiles, steel tube manufacture technique in the particularly large-scale hole.
Common large-scale steel pipe manufacturing process is at present: the steel plate line, the groove cutting processing, pre-bending, curved plate rolls, tile is proofreaied and correct, tile platform group circle, the longitudinal joint vertical position welding, tube coupling is proofreaied and correct, seam inspection, transfer circle and interior bracing reinforcement, stiffening ring is installed welding, steel pipe corrosion-proof, in order to reduce steel pipe the workload of circumferential weld is installed, some manufacturing process are welded into big joint with the assembling of tube wall circumferential weld with two tube couplings after being defined in the tube coupling correction on turning rolls, steel pipe corrosion-proof again, the adaptability of traditional handicraft is strong, but must adopt a large amount of manual welding, hand labor intensity is big, efficient is low, long in time limit, the welding ratio of welderingization automatically is about 30%.Present large-scale penstock has adopted the argonaut welding technology to carry out the longitudinal joint vertical position welding, solved the big problem of the low and artificial amount of efficient that steel pipe is made partially, but the ratio of the automatic welderingization of its steel pipe welding is not high, be about 50%, welding cost is higher, simultaneously above technology all must be on the steel platform group garden, thereby the occupied ground area is big.Propose in the Chinese patent 94118021.2, steel plate welds a back roll-forming on the steel platform, can improve the mechanization degree of steel pipe's production, reducing the place takies, yet because the wall thickness dimension of large-scale steel pipe is big, steel plate can not once arrive the radius of curvature of design in curly course, need progressively to adjust, curl to repeated multiple times, could be finally to being connected into a circular tube coupling, not only the roll bending time is long, influence the institutional framework of weld seam that has been shaped when curling, and must need the tall and big hanging device of a cover to assist lifting specially, and this operation is for large-scale steel pipe, security is affected, thereby is promoted on a large scale in actual production.It may be noted that existing technology all only proposes steel pipe and organizes circle and welding in manufactory, and in fact large-scale steel pipe transportation clearance after manufactory's manufacturing is finished is big, transportation is difficulty comparatively, and efficient is low, the integrated cost height.
The manufacturing process that the purpose of this invention is to provide a kind of large-scale steel pipe, it can improve the mechanization and the Automation of Welding degree of penstock, reduces steel pipe welding capacity and transportation range are installed, and improves efficiency of construction and quality and reduces comprehensive production cost.
The present invention is achieved in that and adopts technological process shown in Figure 1, the steel plate that is about to large-scale steel pipe is rolled into two or more circular arc tiles, tile is at turning rolls or can carry out vertical group of circle on the rotating platform of facade, this moment steel pipe axis horizontal or near level, afterwards, finish the steel pipe vertical seam welding, proofread and correct, transfer circle, stiffening ring installs and welding, the big joint of assembling and girth welding.
As shown in Figure 1, the manufacturing process flow of the large-scale steel pipe of being made up of two or more circular arc tiles is: steel plate line (1); Steel plate cutting (2); Divided edge of steel plate processing (3); The steel plate curved tile (4) that curls; Tile check (5); Stiffening ring is made (6); Tile transportation (7); Vertical group of circle is steel pipe joint and fixing (8); Steel pipe vertical seam level welding (9); Welding deformation is proofreaied and correct (10); Tube coupling is transferred circle (11); Steel pipe stiffening ring (12) is installed; Stiffening ring welding (13); Two or more tube couplings are formed pipeline section (14); Pipeline section girth welding (15); Welding Testing (16); Pipeline section anticorrosion (17).Steel pipe becomes horizontal positioned by common vertical placement, the group circle carries out on turning rolls, by the auxiliary tile of support in adjustable activity circle is fixed with preliminary, weld the longitudinal joint of steel pipe on assembly unit limit, limit, afterwards, steel pipe is finished welding deformation and is proofreaied and correct (10), tube coupling accent circle (11), stiffening ring (12), welding processing strength ring (13) are installed under the same position state, form pipeline section (14) with two or more tube couplings again, finish girth welding (15).Again stiffening ring is installed (12) and welding (13) after can certainly finishing tube coupling assembling (14) and girth welding (15) earlier, like this, it is comparatively convenient to move horizontally in the tube coupling assembling process, the welding of tube wall circumferential weld and stiffening ring circumferential weld can combine and carry out, because steel pipe can turn round on turning rolls or rotating platform quickly and easily, for the automatic welding of all longitudinal joints of steel pipe and circumferential weld provides convenience, can select steady quality efficient height, the welding manner that comprehensive economy is good, simultaneously, steel pipe only moves horizontally, do not need to have overturn, for large-scale steel pipe, save labor, do not need large-scale hanging device yet, this manufacture is fit to general large-scale steel pipe manufacturing, and advantage is more arranged in large-scale underground steel pipe engineering application, because its apparatus arrangement compactness, even in tunnel, also can finish easily from vertical group of circle of tile and become the whole process of steel pipe joint (8) to pipeline section Welding Testing (16), avoided the difficulty of large-scale steel pipe transportation, can in the hole, make, reduced the workload that steel pipe is installed than the larger sized steel pipe of traditional handicraft.
Compared with prior art, the present invention has further improved mechanization degree and Automation of Welding level that large-scale steel pipe is made, can reduce simultaneously the difficulty of lifting steel pipes and transportation, reduce production costs, the large-scale steel pipe engineering that is particularly useful in tunnel is used, and can obtain stable welding quality and high efficiency production.
Below in conjunction with embodiment the present invention is further described.
It below is the manufacturing mounting process of a power station large-scale steel pipe;
1, steel plate discharge, line; 2, steel pipe plate cutting; 3, steel pipe sheet material processing; 4, the steel pipe roll bending is 1/4 circular arc tile; 5, tile check; 6, stiffening ring manufacturing; 7, circular arc steel plate transportation comprise in the construction tunnel of transporting for long-distance, or storage back secondary is transported in the construction tunnel; 8, group circle in the steel pipe hole, the group circle adopts large-scale turning rolls to finish in conjunction with adjustable movable inner support frame; 9, steel pipe vertical seam welding: welding method is full-automatic multiplewire submerged arc welding welding; 10, steel pipe set round adopts the hydraulic pressure shape-calibration machine; 11, steel pipe is transferred the garden; 12, two or more tube couplings are formed pipeline section on large-scale turning rolls; 13, full-automatic multiplewire submerged arc welding continuous welding is adopted in pipeline section girth welding; 14, the steel pipe stiffening ring is installed; 15, full-automatic multiplewire submerged arc welding continuous welding is carried out in steel pipe stiffening ring welding on large-scale turning rolls; 16, weld inspection; 17, transportation in the steel pipe hole; 18, steel pipe is installed; 19, steel pipe installing ring seam welding; 20, weld inspection; 21, steel pipe corrosion-proof.
Adopted the method for upright group in the hole in the above steel tube manufacture technique, in conjunction with large-scale turning rolls, automatically welding manner and equipment efficiently, form one and overlap movably steel pipe manufacturing center, replace the existing makers' function of building site steel pipe, simplified existing large-scale steel pipe mounting process simultaneously, the automatization level of steel pipe manufacture mechanicalization and welding has improved widely, steel pipe fabrication stage welding automation rate can make the welding automation rate of whole manufacturings of steel pipe and installation process reach more than 80% of deposited metal amount simultaneously near 100%.On the one hand; big transporting and hoisting of the steel pipe of large amount of complex and stand up transposition work and do not had; lifting; install; the labour intensity of welding and flaw detection thereof has reduced; construction safety and reliability increase; intensity that the steel pipe manufacturing is installed and speed are easy to improve; and on the other hand; because steel pipe tile and stiffening ring can be in the machinery plant that possesses relevant device or metallic structure factory's processing; therefore can build or even not build interim steel pipe manufactory less; thereby broken through existing steel tube manufacture technique pattern; avoided whenever building in the present hydroelectric project steel tube factory's construction that big-and-middle-sized power station is necessary; the engineering input reduces; reduce the construction period land used simultaneously, helped environmental protection.
Claims (4)
1. a steel pipe of being made up of two or more arc tiles is made mounting process, its process comprises: steel plate line (1), steel plate cutting (2), divided edge of steel plate processing (3), the steel plate curved tile (4) that curls, tile check (5), stiffening ring is made (6), tile transportation (7), vertical group of circle is steel pipe joint and fixing (8), steel pipe vertical seam level welding (9), welding deformation is proofreaied and correct (10), tube coupling is transferred circle (11), steel pipe stiffening ring (12) is installed, stiffening ring welding (13), two or more tube couplings are formed pipeline section (14), pipeline section girth welding (15), Welding Testing (16), pipeline section anticorrosion (17) is characterized in that vertical group of circle of steel pipe tile is steel pipe joint and fixing (8) in the above-described step, steel pipe vertical seam level welding (9), welding deformation is proofreaied and correct (10), tube coupling is transferred circle (11), steel pipe stiffening ring (12) is installed, stiffening ring welding (13), two or more tube couplings are formed pipeline section (14), the manufacturing process of pipeline section girth welding (15) and Welding Testing (16) adopts the state of axis horizontal to carry out in tunnel.
2. manufacturing process according to claim 1 is characterized in that vertical group of circle of tile is the steel pipe joint and finish fixing (8) on turning rolls.
3. manufacturing process according to claim 1 is characterized in that vertical group of circle of tile is the steel pipe joint and finish by supporting in adjustable activity to assist fixing (8).
4. manufacturing process according to claim 1 is characterized in that steel pipe vertical seam level welding (9), stiffening ring welding (13) and pipeline section girth welding (15) employing multifibres Lincoln weld welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100203967A CN100484700C (en) | 2005-02-23 | 2005-02-23 | Automatic manufacturing technique of large sized steel pipe |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100203967A CN100484700C (en) | 2005-02-23 | 2005-02-23 | Automatic manufacturing technique of large sized steel pipe |
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| CN1654162A CN1654162A (en) | 2005-08-17 |
| CN100484700C true CN100484700C (en) | 2009-05-06 |
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| CNB2005100203967A Active CN100484700C (en) | 2005-02-23 | 2005-02-23 | Automatic manufacturing technique of large sized steel pipe |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100462195C (en) * | 2006-11-01 | 2009-02-18 | 四川东风电机厂有限公司 | Process for making non-preframed volute |
| CN102120290B (en) * | 2010-01-08 | 2013-12-04 | 彭智祥 | Annular steel plate assembling and welding method and device |
| CN102133691A (en) * | 2010-01-22 | 2011-07-27 | 彭智祥 | Method and device for assembling and welding special-shaped steel pipe |
| CN102489947B (en) * | 2011-11-30 | 2014-12-17 | 攀钢集团工程技术有限公司 | Bottom chord tube manufacturing process of girder of steel tube concrete truss beam bridge |
| CN106271404B (en) * | 2016-08-15 | 2018-08-24 | 鞍钢重型机械有限责任公司 | A kind of production method of large size Water distribution circular pipe |
| CN106312262A (en) * | 2016-10-20 | 2017-01-11 | 西安华杰管道有限公司 | TIG welding technique for butt welding of thin-walled stainless steel tubes |
| CN107252949A (en) * | 2017-06-29 | 2017-10-17 | 中国葛洲坝集团机电建设有限公司 | A kind of power station giant pressure steel pipe all position automatic welding construction method |
| CN109483162A (en) * | 2018-10-29 | 2019-03-19 | 江苏丰禾机械制造股份有限公司 | A kind of tile manufacture craft |
| CN109590744B (en) * | 2019-01-18 | 2019-11-01 | 中交第三航务工程局有限公司 | A kind of welding procedure of offshore wind power foundation steel-pipe pile |
| CN113319525A (en) * | 2021-05-18 | 2021-08-31 | 希斯芮烟囱科技(连云港)有限公司 | Manufacturing process of D-shaped sleeve type steel chimney inner barrel |
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2005
- 2005-02-23 CN CNB2005100203967A patent/CN100484700C/en active Active
Non-Patent Citations (2)
| Title |
|---|
| 压力钢管制作中焊接变形的控制. 姚文利.焊接技术，第30卷第5期. 2001 |
| 压力钢管制作中焊接变形的控制. 姚文利.焊接技术，第30卷第5期. 2001 * |
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| CN1654162A (en) | 2005-08-17 |
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Assignee: Sichuan Haote Electric Co. Ltd. Assignor: Yang Jin Contract record no.: 2011510000081 Denomination of invention: Automatic manufacturing technique of large sized steel pipe Granted publication date: 20090506 License type: Exclusive License Open date: 20050817 Record date: 20110607 |
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