CN102489889A - High-efficiency welding method for shipbuilding - Google Patents
High-efficiency welding method for shipbuilding Download PDFInfo
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- CN102489889A CN102489889A CN2011104166341A CN201110416634A CN102489889A CN 102489889 A CN102489889 A CN 102489889A CN 2011104166341 A CN2011104166341 A CN 2011104166341A CN 201110416634 A CN201110416634 A CN 201110416634A CN 102489889 A CN102489889 A CN 102489889A
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Abstract
The invention discloses a high-efficiency welding method for shipbuilding, which includes the steps: firstly, performing welding in a plate splicing area by means of a twin-wire submerged automatic arc double-side welding technique and an FCB (flux copper backing) submerged automatic arc single-side welding and double-side forming technique; secondly, automatically welding and correcting an integrally welded T bar in a small assembly area by the aid of semiautomatic horizontal fillet welding small components and T profiles; thirdly, welding 4-8 longitudinals and 8-16 welding lines once at a hull longitudinal manufacturing position by means of a longitudinal installation welding technique integrating installation and welding; and fourthly, realizing vertical butt joint automation in ship erection process by means of perpendicular gas electric welding. Compared with a traditional welding technique, the high-efficiency welding method for shipbuilding not only has the advantage of high efficiency, but also executes the advanced conception of energy conservation and environmental protection, improves ship welding quality during production practice, saves cost, improves efficiency, has excellent practicability, and can generate excellent economic and social benefits.
Description
Technical field
The present invention relates to welding method, be specifically related to the welded and high efficient method in a kind of shipbuilding.
Background technology
Since nineteen seventies, rapid development of science and technology has promoted comprehensive progress of shipbuilding technology.World advanced person's shipbuilding countries is in intense market competition; The status that remains ahead; Incline and research and develop new technology, new technology, new equipment with all strength; Reform, the building practices and the management of transforming outmoded backwardness have proposed new ideas, new approaches such as " shell, Xi, be coated with " incorporate Modern Shipbuilding Mode, and have obtained economic benefit significantly.The hull construction engineering is the basis and the preceding road engineering of shipbuilding, also is the important step of tool shipbuilding characteristic and reflection shipbuilding technology quality level, ability, and its workload accounts for the over half of whole marine engineering.And in hull construction, welding is again key and a technical support wherein, respectively accounts for the 30%-50% of hull construction man-hour and cost with cost during the Welder, and the quality of welding is the important indicator that reflects the hull construction quality good or not.Therefore; The welded and high efficient technology of research and development mechanization, automation is not only enterprise and is improved the shipbuilding quality, enhances productivity, reduces construction cost, shortens the effective way of shipbuilding period, and is the technological progress growth point of realizing the Modern Shipbuilding Mode conversion of boats and ships parent company proposition.High speed and high efficiency welding are the developing direction of modern welding, are the only ways of realizing modernized welding.
Summary of the invention
Goal of the invention: to not high in the prior art to existing welding method efficient; Can't satisfy the modern production needs; The purpose of this invention is to provide the welded and high efficient method in a kind of shipbuilding, to realize setting up modern ships welded and high efficient technology efficient, energy-saving and environmental protection.
Technical scheme: in order to realize the foregoing invention purpose, the technical scheme that the present invention adopts is:
Welded and high efficient method in a kind of shipbuilding at first in the jigsaw district, adopts mariages Lincoln weld welding by both sides connection technology and FCB Lincoln weld single face welding and double face shaping technology to weld; In group dress district, adopt semi-automatic straight angle welding primary structural component and T section bar to adorn weldering automatically and rectify one welding T row then; Then in hull longitudinal manufacturing place, adopt dress, welding integrated vertical bone Welding Technology for Installation, once accomplish the vertical bone of 4-8 root, the welding of 8-16 road weld seam; Close up technology greatly at boats and ships at last, adopt the vertical gas electric welding to realize upright butt joint automation.
Two-sided welding fabrication technology is adopted in the mariages Lincoln weld; Mariages Lincoln weld connection technology adopts existing automatic submerged arc welding wire (trade mark H08MnA/H08A) as welding material; Use fusing point higher relatively, pine is adorned smaller sintered flux (for example SJ101), and it is welded.The single face welding and double face shaping technology is adopted in three Lincoln welds of FCB, adopts day Benshen's steel import wlding: welding wire Y-A, surperficial solder flux NSH-50, bottom surface solder flux NSH-IR.
Advanced high-efficiency ship solder technology relates to technological design in the shipbuilding, closes up for a short time, in close up, close up greatly, the welding engineering of operation such as flat section, curved section, straight three dimensional unit, the welding of pipeline flange, the weldering of section bar parts dress and station.The present invention mainly adopts these characteristics of mild steel according to Ship Structure; Sheet metal thickness is at 12-32mm, and welding performance is good, at first in the jigsaw district; Adopt mariages Lincoln weld and FCB welded and high efficient technology progressively to replace traditional monofilament welding by both sides connection technology, realize multifibres single welding connection technology; In group dress district, T type structure is more, and fusion length is longer, adopts straight angle welding position mostly, adopts CO
2The straight angle position of semi-automatic welded corner joint minor structure, T row makes the two-sided automatic fillet welding technology that adopts; Hull longitudinal adopts advanced dress, and welding integrated vertical bone is installed, welding (the automatic fillet welding of 16 electrodes) technology, welds 4 vertical 8 seams of bone simultaneously.On big closed position, adopt the technology of vertical gas electric welding efficiently, realized the automation of upright docking location, shortened greatly and closed up the cycle, improved production efficiency, realize welded and high efficient fully.
Beneficial effect: compare with traditional solder technology, the welded and high efficient method in the shipbuilding of the present invention not only has efficient characteristics; And carried out energy-conservationly, the advanced theory of environmental protection is imitated the welding quality that improves boats and ships in the production practices process; Practice thrift cost; Raise the efficiency, have good practicability, can produce good economic benefits and social benefit.
The specific embodiment
Below in conjunction with specific embodiment the present invention is done further explanation.
Embodiment 1
The present invention mainly adopts these characteristics of mild steel according to Ship Structure; Sheet metal thickness is at 12-32mm, and welding performance is good, at first in the jigsaw district; Adopt mariages Lincoln weld and FCB welded and high efficient technology to replace traditional welding wire welding by both sides connection technology, realize multifibres single face welding double-faced forming technology; At group dress place, T type structure is more, adopts straight angle welding position mostly, and the longer characteristics of fusion length; Adopt CO
2Straight angle position in the semi-automatic welded corner joint minor structure, T row system adopts the T section bar to adorn weldering automatically and rectifys the one solder technology; The vertical bone of body adopts advanced dress, and welding integrated vertical bone is installed,, welding (the automatic fillet welding of 16 electrodes) technology, weld 4 vertical 8 seams of bone simultaneously.Close up greatly at boats and ships and to adopt vertical gas electric welding efficiently technology in the technological process, realized upright automation, shortened greatly and closed up the cycle, improved production efficiency, realize welded and high efficient fully to docking location.
Mariages Lincoln weld and FCB welded and high efficient are: two-sided welding fabrication technology is adopted in the mariages Lincoln weld, and the single face welding and double face shaping technology is adopted in three Lincoln welds of FCB.Mariages Lincoln weld connection technology adopts existing automatic submerged arc welding wire (trade mark H08MnA/H08A) as welding material, uses fusing point higher relatively, and pine is adorned smaller sintered flux (for example SJ101), and it is welded.And three Lincoln weld single face welding and double face shapings of FCB adopt day Benshen's steel import wlding: welding wire Y-A, surperficial solder flux NSH-50, bottom surface solder flux NSH-IR.
In the jigsaw district, the deck of the main welded hull of multifibres Lincoln weld connection technology, the sheet material that outside plate etc. are straight; Adopt following welding procedure: the following sheet material of the two-sided welding fabrication 22mm of mariages is finished edge not; Seam or a small amount of batch of seam, disposable then capping are not criticized in positive disposable completion, reverse side.24-32mm opens the V groove, stays the positive disposable completion of 6mm root face, and reverse side is not criticized seam or a small amount of batch of seam, disposable then capping.Below three Lincoln weld 24mm of FCB sheet metal thickness, adopt the Y joint form, 50 degree grooves stay the 3mm root, and the root more than 24 adds and reaches 5mm.
According to maximum pool depth, confirm groove type, select appropriate welding parameter (welding current, arc voltage, the speed of travel, the distance between the multifibres) according to different plates thickness, reach desired mechanical property.Aesthetic in appearance in order to ensure weld seam, require the jigsaw assembly precision at 0-2mm.
In order to cooperate efficient submerged arc welding technology, former sheet material adopts the driving method for carrying, now the transmission of submerged arc district is improved, and adopts mechanization roller transportation techniques, makes rhythm of production accelerate, and welded and high efficient is played certain help.
The more traditional monofilament welding by both sides of multifibres single face welding double-faced forming technical efficiency connection technology production efficiency improves 2-3 doubly; In order to improve the quality of single face welding double-faced forming, preliminary treatment is adopted and is milled limit technology raising assembly precision, increases the reverse side repair technology in next flow process simultaneously.
Embodiment 2
In welding process, the welding parameter butt welded seam form direct influence, compare with the monofilament welding, it is bigger that multifibres welded and high efficient technology receives following parameter influence:
Preceding silk electrode current, voltage swing forms direct relation to the back side: electric current is excessive, and back side moulding is too high wide; Electric current is too small, the narrow indent of back side moulding even can form the root incomplete fusion, when the moulding of the too high then sealing run of arc voltage wide; Arc voltage crosses that low then the sealing run moulding is narrow and low, even moulding is bad, so in multifibres single welding technology, sealing run moulding situation is preceding electrode welding current, arc voltage is selected whether suitable important evidence for use.
The rear electrode electric current, the crystallization of the selection butt welded seam of arc voltage, fillet in normal shear well forms certain influence, and the too small metal of then filling of electric current is not enough, causes the weld edge incomplete fusion, slag inclusion, welding depression; Can excessively then can destroy the sealing run moulding to the remelting of preceding wire bond seam, obtain the favorable mechanical performance, whether suitable rear electrode welding current, arc voltage are selected for use be important evidence.
In welding process, because the output of too high heat, the weld pool solidifies time is longer, and it is thick that weld seam possibly crystal grain occur, influences the mechanical property of weld seam, in the form of single molten bath, also the pore phenomenon possibly occur simultaneously.Suitable thermal output control butt welded seam structure property has influenced into key factor.
Distance between the multifibres plays very big influence to moulding in welding process, ' drawing slag ' phenomenon appears in long electrode distance easily; Under the situation of high-temperature very, superpose the again arcing of rear electrode of too short distance, preceding electrode weld seam, this moment, the rear electrode fusion penetration increased sharply; The too much remelting of electrode weld seam is up to having influence on the sealing run moulding before causing; The mechanical performance of high-temperature stop butt joint is unfavorable for a long time, and distance between the correct electrode has certain influence to the temperature between the layer.
Comprehensive above-mentioned various factors, when mariages welded automatically, preferably the technical parameter in the use table 1 welded, and when the FCB welded and high efficient, preferably the technical parameter of use table 2 welds.
Table 1 mariages welds important technological parameters automatically
Table 2 FCB Lincoln weld technical parameter
Claims (5)
1. the welded and high efficient method in the shipbuilding is characterized in that: at first in the jigsaw district, adopt mariages Lincoln weld welding by both sides connection technology and FCB Lincoln weld single face welding and double face shaping technology to weld; In group dress district, adopt semi-automatic straight angle welding primary structural component and T section bar to adorn weldering automatically and rectify one welding T row then; Then in hull longitudinal manufacturing place, adopt dress, welding integrated vertical bone Welding Technology for Installation, once accomplish the vertical bone of 4-8 root, the welding of 8-16 road weld seam; Close up technology greatly at boats and ships at last, adopt the vertical gas electric welding to realize upright butt joint automation.
2. the welded and high efficient method in the shipbuilding according to claim 1 is characterized in that: the Ship Structure material mainly adopts mild steel.
3. the welded and high efficient method in the shipbuilding according to claim 1 is characterized in that: two-sided welding fabrication technology is adopted in described mariages Lincoln weld.
4. the welded and high efficient method in the shipbuilding according to claim 1 is characterized in that: described FCB welded and high efficient is three Lincoln welds of FCB, adopts the single face welding and double face shaping technology.
5. the welded and high efficient method in the shipbuilding according to claim 1 is characterized in that: in hull longitudinal manufacturing place, at CO
2Under the gas shield, adopt the automatic fillet welding of 16 electrodes to indulge bone welding is installed.
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| CN 201110416634 CN102489889B (en) | 2011-12-14 | 2011-12-14 | Welding method for shipbuilding building |
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| CN 201110416634 CN102489889B (en) | 2011-12-14 | 2011-12-14 | Welding method for shipbuilding building |
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| CN102489889B CN102489889B (en) | 2013-09-04 |
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Cited By (7)
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| CN102962593A (en) * | 2012-10-26 | 2013-03-13 | 福建省马尾造船股份有限公司 | Welding process of group establishment stage intervention interchangeable part |
| CN103056496A (en) * | 2012-12-28 | 2013-04-24 | 胜利油田龙玺石油钢管有限公司 | Combined wire automatic submerged arc welding technology |
| CN103624375A (en) * | 2013-11-25 | 2014-03-12 | 南通长青沙船舶工程有限公司 | Ship welding technology |
| CN103706917A (en) * | 2013-12-25 | 2014-04-09 | 青岛武船重工有限公司 | Finishing end heating method capable of preventing finishing end cracks from being generated in PCB welding |
| CN104057174A (en) * | 2014-05-30 | 2014-09-24 | 南通贝斯特船舶与海洋工程设计有限公司 | Ship welding process |
| CN104785908A (en) * | 2015-04-10 | 2015-07-22 | 上海中远川崎重工钢结构有限公司 | Welding methods for weathering resistant steel Q355NHD |
| CN106695080A (en) * | 2015-08-04 | 2017-05-24 | 烟台中集来福士海洋工程有限公司 | Welding method for plates for ships and marine engineering |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102962593A (en) * | 2012-10-26 | 2013-03-13 | 福建省马尾造船股份有限公司 | Welding process of group establishment stage intervention interchangeable part |
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| CN103056496A (en) * | 2012-12-28 | 2013-04-24 | 胜利油田龙玺石油钢管有限公司 | Combined wire automatic submerged arc welding technology |
| CN103624375A (en) * | 2013-11-25 | 2014-03-12 | 南通长青沙船舶工程有限公司 | Ship welding technology |
| CN103706917A (en) * | 2013-12-25 | 2014-04-09 | 青岛武船重工有限公司 | Finishing end heating method capable of preventing finishing end cracks from being generated in PCB welding |
| CN103706917B (en) * | 2013-12-25 | 2015-10-28 | 青岛武船重工有限公司 | A kind of FCB that prevents welds the terminal heating means producing terminal crackle |
| CN104057174A (en) * | 2014-05-30 | 2014-09-24 | 南通贝斯特船舶与海洋工程设计有限公司 | Ship welding process |
| CN104785908A (en) * | 2015-04-10 | 2015-07-22 | 上海中远川崎重工钢结构有限公司 | Welding methods for weathering resistant steel Q355NHD |
| CN106695080A (en) * | 2015-08-04 | 2017-05-24 | 烟台中集来福士海洋工程有限公司 | Welding method for plates for ships and marine engineering |
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| CN102489889B (en) | 2013-09-04 |
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Address after: 225000 Shenwangcun, Xinba, Lidian Town, Guangling District, Yangzhou City, Jiangsu Province Patentee after: New Ocean Shipbuilding Co., Ltd. Address before: 225000 Lidian Shipbuilding Industrial Park, Hangjiang District, Yangzhou City, Jiangsu Province Patentee before: Yangzhou Dayang Shipbuilding Co., Ltd. |
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