CN110465760B - Welding method in narrow space of ship body - Google Patents
Welding method in narrow space of ship body Download PDFInfo
- Publication number
- CN110465760B CN110465760B CN201910810073.XA CN201910810073A CN110465760B CN 110465760 B CN110465760 B CN 110465760B CN 201910810073 A CN201910810073 A CN 201910810073A CN 110465760 B CN110465760 B CN 110465760B
- Authority
- CN
- China
- Prior art keywords
- welding
- space
- ship body
- plate
- narrow space
- 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.)
- Active
Links
Images
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
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention discloses a welding method in a narrow space of a ship body, which comprises the following steps: firstly, a sealing plate and a base plate are manufactured according to the cross section shape of a small space of a ship body, then the sealing plate is fixed on the base plate, then the sealing plate and the base plate are positioned at the welding position in the small space and welded and fixed to form a welding line, the small space is sealed, and a sealed space is obtained. The welding method in the narrow space of the ship body of the embodiment adopts the welding mode of combining the sealing plate and the base plate to directly seal the narrow space of the ship body, the anti-corrosion requirement of welding is met through single-side welding, the damage to the structure caused by the fact that the temporary working hole is formed in the ship body is avoided, the construction difficulty is greatly reduced, the structural damage of the ship body caused by the fact that holes are not formed does not need to be examined and checked by a shipowner and a ship, and the construction efficiency is improved. Because the closed space is a closed space and isolated from the outside, the closed space is not easy to corrode, paint operation in the closed space is not needed, and the construction efficiency is further improved.
Description
Technical Field
The invention relates to the technical field of ship manufacturing, in particular to a welding method in a narrow space of a ship body.
Background
The ship sails on the water surface, the environment humidity is high, and metal materials are easy to corrode, so that the welding at each position of the ship body usually needs to adopt double-sided welding to fill up the gap at the connecting position so as to meet the corrosion prevention requirement at the welding seam. The inside panel that plays structural support and connection effect that needs to weld a large amount of hull, in some narrow and small spaces of hull, because of the space restriction, in order to realize two-sided welding, need additionally set up interim work hole on near the hull, constructor can just carry out weldment work in narrow and small space inside through interim work hole, when the welding completion after, blocks up interim work hole again.
Some important supporting structures of the ship body have stricter structural strength requirements, and the strength cannot reach the standard due to the arrangement of the temporary working holes, so that the conventional double-sided welding cannot be realized in a narrow space near the important supporting structures, and the corrosion prevention requirement of a welding part cannot be met. Secondly, there are some narrow spaces near which there is no position where a temporary working hole can be opened, and double-sided welding cannot be achieved. In addition, the temporary working holes are arranged to damage the hull structure to a certain extent, and shipowners and shipyards are required to check and check, so that the communication cost is high.
Disclosure of Invention
The invention aims to provide a welding method in a narrow space of a ship body, which can carry out welding work without opening a temporary working hole and meet the requirement of corrosion resistance.
In order to achieve the purpose, the invention adopts the following technical scheme:
the welding method in the narrow space of the ship body comprises the following steps:
s1, manufacturing a sealing plate and a base plate according to the cross section shape of a narrow space;
s2, fixing the sealing plate on the base plate;
and S3, positioning the sealing plate and the base plate to the welding position in the narrow space, welding and fixing, and sealing the narrow space to form a closed space.
In a preferred embodiment of the present invention, the sizes of the sealing plate and the gasket are generated by software or measured in the field.
As a preferable scheme of the present invention, the step S1 specifically includes the following steps:
s11, scribing in the narrow space to obtain a closed line, and determining the position of a welded seam;
s12, measuring the lines to obtain the contour data of the backing plate and manufacturing the backing plate;
and S13, carrying out equal-proportion reduction on the contour data of the base plate to obtain the contour data of the sealing plate, and manufacturing the sealing plate.
In a preferred embodiment of the present invention, in step S2, the edges of the pad protrude from the edges of the sealing plate.
In a preferred embodiment of the present invention, the sealing plate and the backing plate are fixed by spot welding.
As a preferable scheme of the invention, the middle part of the backing plate is provided with a plurality of openings.
As a preferable aspect of the present invention, the edge of the pad abuts against the hull in the narrow space, the sealing plate is spaced apart from the hull in the narrow space, and a groove structure is formed among the sealing plate, the pad, and the hull in the narrow space.
As a preferable aspect of the present invention, the weld is filled in the groove structure.
In a preferred embodiment of the present invention, the thickness of the gasket is smaller than that of the sealing plate.
As a preferable scheme of the invention, the airtight space is internally provided with a vapor phase corrosion inhibitor.
The invention has the beneficial effects that:
the method adopts the welding mode of combining the sealing plate and the backing plate to directly seal the narrow space of the ship body, meets the anti-corrosion requirement of welding through single-side welding, avoids the damage to the ship body structure caused by the temporary working hole arranged on the ship body, greatly reduces the construction difficulty and improves the construction efficiency.
Drawings
FIG. 1 is a schematic view of an assembly of a sealing plate and a backing plate according to an embodiment of the present invention;
figure 2 is a schematic view of the welding of the closure plate of the embodiment of figure 1.
In FIGS. 1-2:
1. closing the plate; 2. a base plate; 100. a hull; 200. welding seams; 300. and (4) sealing the space.
Detailed Description
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the word "over" a first feature or feature in a second feature may include the word "over" or "over" the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature "under" a second feature may include a first feature that is directly under and obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
As shown in fig. 1 to 2, the welding method in the small space of the ship body of the present embodiment includes the following steps:
first, the sealing plate 1 and the backing plate 2 are manufactured according to the cross-sectional shape of the hull 100 in a narrow space, the sealing plate 1 is fixed to the backing plate 2, and then the sealing plate 1 and the backing plate 2 are positioned to the welding position in the narrow space and welded and fixed to form the weld 200, so that the narrow space is sealed, and the sealed space 300 is obtained.
The welding method in the narrow space of the ship body of the embodiment adopts the welding mode of combining the sealing plate 1 and the base plate 2 to directly seal the narrow space of the ship body 100, the anti-corrosion requirement of welding is achieved through single-side welding, the damage to the structure caused by the arrangement of the temporary working holes on the ship body 100 is avoided, the construction difficulty is greatly reduced, the structural damage of the ship body 100 caused by the opening is avoided, the verification of shipowners and ship inspection is not needed, and the construction efficiency is improved. Because the closed space 300 is a closed space isolated from the outside, the closed space is not easy to corrode, paint operation in the closed space 300 is not needed, and the construction efficiency is improved.
The dimensions of the sealing plate 1 and the backing plate 2 are generated by software or obtained by field measurement, in the embodiment, the dimensions of the sealing plate 1 and the backing plate 2 are obtained by field measurement, errors caused by actual construction cannot be avoided, so that the actual dimensions and theoretical values deviate, the dimensions of the sealing plate 1 and the backing plate 2 are more accurate by field measurement, the assembly is easier, and the welding quality is higher.
Specifically, the sealing plate 1 and the backing plate 2 are manufactured by the following method:
firstly, a closed line is obtained by scribing in a narrow space, the position of a welded welding seam 200 is determined, the line is measured, the outline data of the backing plate 2 is obtained, the backing plate 2 is manufactured, then the outline data of the backing plate 2 is reduced in an equal proportion to obtain the outline data of the sealing plate 1, and the sealing plate 1 is manufactured. When the line does not contain a curve, the length of each side can be directly measured by a simple measuring tape or other tools, and when the line contains a curve, the length can be measured by a laser radar or other tools.
Shrouding 1 welds as support piece, needs and hull 100, need leave certain clearance between shrouding 1 and the hull 100 and provide the space for welding seam 200, through addding backing plate 2, makes to form the groove structure that can hold welding seam 200 between shrouding 1, backing plate 2 and the hull 100, and welding seam 200 makes the gap between shrouding 1 and the hull 100 filled up completely through filling this groove structure, has consequently obtained good leakproofness.
The shim plate 2 provides lateral support for the weld 200 to maintain a specific shape of the weld pool during welding and better seal the gap between the plate 1 and the hull 100, so that the shim plate 2 needs to abut against the hull 100 and the shim plate 2 is slightly larger than the plate 1. In some embodiments, the edges of the backing plate 2 protrude from the edges of the sealing plate 1, so that the edges of the sealing plate 1 are spaced from the hull 100, thereby closing the welding seam 200 and improving the tightness of the welding.
Further, shrouding 1 and backing plate 2 spot welding are fixed, because among backing plate 2 did not participate in structural strength, only need slightly fix, make shrouding 1 be connected to backing plate 2 can.
In some embodiments, the middle of the backing plate 2 is provided with a plurality of openings, and also the backing plate 2 does not play a supporting role, so the backing plate 2 can be provided with a plurality of openings to reduce the weight of the backing plate 2, and the field assembly is easier.
Preferably, the thickness of backing plate 2 is less than the thickness of shrouding 1 to alleviate the weight of backing plate 2, also saved the manufacturing cost of backing plate 2 simultaneously, reduced the manufacturing degree of difficulty of backing plate 2.
Specifically, the backing plate 2 is made of a thin steel plate, and the thickness of the backing plate 2 is 0.2 mm to 3 mm. In some cases, the edge of the pad 2 may include several curved line segments, so that the thinner pad 2 is easily deformed by an external force, the size of the pad 2 may be made slightly larger to provide some assembly margin, and when the pad 2 is actually assembled, the pad 2 may be bent and trimmed by a simple tool on site because it is easily bent, so that the assembly gap between the pad 2 and the hull 100 is smaller, and the sealing performance of the welding is further improved.
Preferably, a vapor phase corrosion inhibitor is arranged in the closed space 300, and the vapor phase corrosion inhibitor is volatilized and then is adsorbed on the surface of the metal to form a dense protection film layer so as to play a role in preventing rust. Specifically, the hook is welded in the closed space 300, and the vapor phase corrosion inhibitor is hung on the hook, so that the vapor phase corrosion inhibitor is volatilized more sufficiently, and the corrosion prevention effect is better.
Reference throughout this specification to the description of the terms "preferred," "particular," or the like, as used in connection with preferred embodiments of the invention, means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above examples are only intended to illustrate the details of the invention, which is not limited to the above details, i.e. it is not intended that the invention must be implemented in such detail. It should be understood by those skilled in the art that any modification of the present invention, equivalent substitutions of the raw materials of the product of the present invention, addition of auxiliary components, selection of specific modes, etc., are within the scope and disclosure of the present invention.
Claims (8)
1. A welding method in a small space of a ship body is characterized by comprising the following steps:
s1, marking in a narrow space to obtain a closed line, determining the position of a welded seam, measuring the line to obtain the profile data of a base plate and manufacturing the base plate, and reducing the profile data of the base plate in equal proportion to obtain the profile data of a sealing plate and manufacturing the sealing plate;
s2, fixing the sealing plate on the base plate;
and S3, positioning the sealing plate and the base plate to the welding position in the narrow space, welding and fixing, and sealing the narrow space to form a closed space.
2. The method for welding in a ship' S hull narrow space according to claim 1, wherein in step S2, the edges of the tie plate are all protruded from the edges of the closing plate.
3. The method for welding in a small space of a ship hull according to claim 2, wherein the sealing plate and the backing plate are fixed by spot welding.
4. The welding method for the ship body in the narrow space as claimed in claim 2, wherein the middle part of the backing plate is provided with a plurality of holes.
5. The welding method in the ship body narrow space according to claim 1, characterized in that the edge of the backing plate is abutted against the ship body in the narrow space, the sealing plate is arranged at an interval with the ship body in the narrow space, and a groove structure is formed among the sealing plate, the backing plate and the ship body in the narrow space.
6. The method for welding in the small space of a ship hull according to claim 5, wherein the welding seam is filled in the groove structure.
7. The method of claim 1, wherein the thickness of the backing plate is less than the thickness of the sealing plate.
8. The welding method for the small space of the ship hull according to claim 1, wherein a vapor phase corrosion inhibitor is arranged in the closed space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910810073.XA CN110465760B (en) | 2019-08-29 | 2019-08-29 | Welding method in narrow space of ship body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910810073.XA CN110465760B (en) | 2019-08-29 | 2019-08-29 | Welding method in narrow space of ship body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110465760A CN110465760A (en) | 2019-11-19 |
| CN110465760B true CN110465760B (en) | 2021-08-24 |
Family
ID=68514155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910810073.XA Active CN110465760B (en) | 2019-08-29 | 2019-08-29 | Welding method in narrow space of ship body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110465760B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112158314B (en) * | 2020-09-04 | 2022-09-02 | 中船黄埔文冲船舶有限公司 | Construction method for narrow space of ship structure |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5343047A (en) * | 1976-09-30 | 1978-04-18 | Nippon Steel Corp | Submerged arc welding within narrow groove |
| JP2001334396A (en) * | 2000-05-25 | 2001-12-04 | Kondotec Inc | Backing strip for welding column |
| CN101653874A (en) * | 2008-08-20 | 2010-02-24 | 鞍钢重型机械有限责任公司 | One-side welding and full-penetration welding method for enclosed box body |
| KR20140050417A (en) * | 2012-10-19 | 2014-04-29 | 현대중공업 주식회사 | Method of welding plate member on base plate |
| CN104722887A (en) * | 2014-12-12 | 2015-06-24 | 湖北源盛钢构有限公司 | Steel angle opposite-buckling box-type steel component and installing and welding process of full penetration of main welding joint |
| CN205311826U (en) * | 2016-01-15 | 2016-06-15 | 福建省马尾造船股份有限公司 | Structure is mended in sealing of airtight space of hull |
| CN205396435U (en) * | 2016-03-04 | 2016-07-27 | 江苏扬子鑫福造船有限公司 | Large -scale container ship container supporting box post |
| CN108581257A (en) * | 2018-04-28 | 2018-09-28 | 广船国际有限公司 | A kind of ship fore body narrow zone welding method |
| CN108639240A (en) * | 2018-06-28 | 2018-10-12 | 广船国际有限公司 | A kind of polishing of ship small space and paint staining |
| CN109208409A (en) * | 2017-06-30 | 2019-01-15 | 比亚迪股份有限公司 | Riding-type Monorail Switch beam and preparation method thereof |
| CN109514019A (en) * | 2018-10-19 | 2019-03-26 | 科能源科技（天津）有限公司 | A kind of column welding method based on interior lining panel |
| CN208897261U (en) * | 2018-07-28 | 2019-05-24 | 广东中远海运重工有限公司 | A kind of shipping stempost of thick steel plate pattern |
| CN110102929A (en) * | 2019-06-24 | 2019-08-09 | 大连中远海运川崎船舶工程有限公司 | A kind of welding method for the narrow cabin of ship |
-
2019
- 2019-08-29 CN CN201910810073.XA patent/CN110465760B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5343047A (en) * | 1976-09-30 | 1978-04-18 | Nippon Steel Corp | Submerged arc welding within narrow groove |
| JP2001334396A (en) * | 2000-05-25 | 2001-12-04 | Kondotec Inc | Backing strip for welding column |
| CN101653874A (en) * | 2008-08-20 | 2010-02-24 | 鞍钢重型机械有限责任公司 | One-side welding and full-penetration welding method for enclosed box body |
| KR20140050417A (en) * | 2012-10-19 | 2014-04-29 | 현대중공업 주식회사 | Method of welding plate member on base plate |
| CN104722887A (en) * | 2014-12-12 | 2015-06-24 | 湖北源盛钢构有限公司 | Steel angle opposite-buckling box-type steel component and installing and welding process of full penetration of main welding joint |
| CN205311826U (en) * | 2016-01-15 | 2016-06-15 | 福建省马尾造船股份有限公司 | Structure is mended in sealing of airtight space of hull |
| CN205396435U (en) * | 2016-03-04 | 2016-07-27 | 江苏扬子鑫福造船有限公司 | Large -scale container ship container supporting box post |
| CN109208409A (en) * | 2017-06-30 | 2019-01-15 | 比亚迪股份有限公司 | Riding-type Monorail Switch beam and preparation method thereof |
| CN108581257A (en) * | 2018-04-28 | 2018-09-28 | 广船国际有限公司 | A kind of ship fore body narrow zone welding method |
| CN108639240A (en) * | 2018-06-28 | 2018-10-12 | 广船国际有限公司 | A kind of polishing of ship small space and paint staining |
| CN208897261U (en) * | 2018-07-28 | 2019-05-24 | 广东中远海运重工有限公司 | A kind of shipping stempost of thick steel plate pattern |
| CN109514019A (en) * | 2018-10-19 | 2019-03-26 | 科能源科技（天津）有限公司 | A kind of column welding method based on interior lining panel |
| CN110102929A (en) * | 2019-06-24 | 2019-08-09 | 大连中远海运川崎船舶工程有限公司 | A kind of welding method for the narrow cabin of ship |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110465760A (en) | 2019-11-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110465760B (en) | Welding method in narrow space of ship body | |
| CN104210619B (en) | Container ship embedded type block installation method | |
| CN106741607B (en) | A kind of method of boat segmental installation container buried base frame | |
| EP1394282B1 (en) | Fuel tank or fuel pipe exhibiting excellent corrosion resistance and method for manufacturing the same | |
| JP5271785B2 (en) | Steel sheet pile anticorrosion structure and anticorrosion method | |
| CN109591956A (en) | A kind of container ship closes up the manufacturing process of mouth with corrosion-resistant hatch board | |
| KR101380659B1 (en) | Method for welding inner plate and cover plate and rudder manufacturing method having the same | |
| CN109079362B (en) | Processing method of water pump impeller | |
| JP5580846B2 (en) | Slot structure in a ship | |
| CN206796682U (en) | A kind of titanium steel composite board novel welding structure | |
| CN206248266U (en) | A kind of pressure gauge of chemical industry Shockproof anti-corrosion | |
| CN114715351A (en) | Method for mounting ship full-rotation rudder propeller equipment | |
| CN115971715A (en) | Ship deck welding method | |
| JP4823126B2 (en) | Structure of heavy anticorrosion coated steel sheet pile excellent in anticorrosion of joint part and steel sheet pile used for the structure | |
| CN204858328U (en) | Marine wall -hanging small -size distribution box | |
| JP2568886B2 (en) | Metal gasket | |
| CN112810771B (en) | Assembly method of anchor platform for ship | |
| CN215928058U (en) | Steel plate pin with oil grooves | |
| JP2543121Y2 (en) | Slot Shape and Longe Penetration Structure in Oil-Watertight Bulkhead of Ship | |
| CN214333728U (en) | Adjustable deck depth measuring head | |
| CN217255806U (en) | Hanging piece testing tool | |
| CN208565962U (en) | Polyurethane steel sleeve steel insulating tube | |
| CN217125735U (en) | Integrated metal honeycomb plate floating disc | |
| CN214701901U (en) | Composite heat exchanger tube plate | |
| CN218025106U (en) | Tower crane adheres to support suitable for installation of right angle corner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |