CN113579421A - Single-groove welding installation method for ship outfitting piece - Google Patents
Single-groove welding installation method for ship outfitting piece Download PDFInfo
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- CN113579421A CN113579421A CN202110717519.1A CN202110717519A CN113579421A CN 113579421 A CN113579421 A CN 113579421A CN 202110717519 A CN202110717519 A CN 202110717519A CN 113579421 A CN113579421 A CN 113579421A
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- outfitting
- welding
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- piece
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- 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
- B23K9/00—Arc welding or cutting
- B23K9/16—Arc welding or cutting making use of shielding gas
-
- 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
- B23K33/00—Specially-profiled edge portions of workpieces for making soldering or welding connections; Filling the seams formed thereby
- B23K33/004—Filling of continuous seams
-
- 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
- B23K9/00—Arc welding or cutting
- B23K9/235—Preliminary treatment
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- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention discloses a ship outfitting piece single-groove welding installation method, which comprises the following steps: step one, forming a groove on the front surface of the outfitting piece along the circumference of the outfitting piece, and forming a mounting hole on the ship body structural plate, wherein the diameter of the mounting hole is slightly larger than the outer diameter of the outfitting piece; secondly, enabling the outfitting to penetrate through the mounting hole, and connecting a groove between the front surface of the outfitting and the ship body structural plate in a welding mode; the back surface of the outfitting is connected with the hull structure plate in a fillet welding seam filling mode; and step three, welding the hull structure reinforcing and outfitting parts. The ship outfitting piece is designed by adopting a connection mode that a welding groove is formed in one side of the outfitting piece and strict welding process control, so that the ship outfitting piece has the advantages of convenience in installation, energy conservation, high efficiency and good product quality. The design method is simple, can meet the ship specification requirements and the using function requirements of outfitting parts, and is suitable for the installation and connection design of outfitting parts on ships, such as pull rings, box legs, mooring holes and the like.
Description
Technical Field
The invention belongs to the technical field of ship construction, and particularly relates to a ship outfitting single-groove welding installation method.
Background
The fitting-out piece is generally adopted to realize certain use function during ship design, such as container box feet, mooring holes for fixing a helicopter or a vehicle, a hatch cover stacking seat, a binding pull ring and the like, the fitting-out piece and a ship body are subjected to conventional design to be beveled, the beveled edge of the fitting-out piece is machined by an equipment factory, and the beveled edge on the side of the ship body cannot be cut in a numerical control manner and is manually cut by a worker during fitting of the fitting-out piece. The existing fitting-out piece installation and connection design method depends on manual operation, is low in automation efficiency and product construction quality, and is not in accordance with the current automatic and intelligent lean shipbuilding concept.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a ship outfitting single-groove welding installation method, which can meet the standard requirements of ship construction and has the advantages of convenience in installation, energy conservation, high efficiency and good product quality.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a ship outfitting single-groove welding installation method, which comprises the following steps:
step one, forming a groove on the front surface of the outfitting piece along the circumference of the outfitting piece, and forming a mounting hole on the ship body structural plate, wherein the diameter of the mounting hole is slightly larger than the outer diameter of the outfitting piece;
secondly, enabling the outfitting to penetrate through the mounting hole, and connecting a groove between the front surface of the outfitting and the ship body structural plate in a welding mode; the back surface of the outfitting is connected with the hull structure plate in a fillet welding seam filling mode;
and step three, welding the hull structure reinforcing and outfitting parts.
In the first step, the angle of the groove is 35-45 degrees, and the depth of the groove is 8-10 mm.
Preferably, in the first step, the diameter of the installation hole is 1-2 mm larger than the outer diameter of the outfitting.
In the second step, flux-cored carbon dioxide gas shielded welding is adopted for welding between the front surface of the outfitting and the ship structure plate and between the back surface of the outfitting and the ship structure plate, and the diameter of the welding wire is 1.2 mm.
According to the preferable technical scheme, the welding between the outfitting and the ship body structural plate comprises backing welding, filling welding and cover surface welding, and the current polarity is DCEP; the current of backing welding is 198-242 amperes, the voltage is 23-27 volts, the welding speed is 15-25.1 cm/min, and the heat input is 12.3-20.5 kilojoules/cm; the current of the filling welding is 216-264 amperes, the voltage is 25-29 volts, the welding speed is 20.2-33.7 cm/min, and the heat input is 10.7-17.9 kilojoules/cm; the current of the cover welding is 216-264 amperes, the voltage is 25-29 volts, the welding speed is 20.2-33.7 cm/min, and the heat input is 10.7-17.9 kilojoules/cm.
As a preferred technical scheme, if the diameter of the outfitting piece is less than 300mm, the outfitting piece and the ship body structural plate are welded in two sections, and the welding direction is clockwise; if the diameter of the outfitting piece is larger than 300mm, the outfitting piece and the ship body structural plate are welded in four sections, the welding direction is clockwise, and the welding sequence is diagonal staggered welding.
In a preferred technical scheme, in the first step, the outfitting is provided with a groove in a pre-machining mode.
The ship outfitting piece is designed by adopting a connection mode that a welding groove is formed in one side of the outfitting piece and strict welding process control, so that the ship outfitting piece has the advantages of convenience in installation, energy conservation, high efficiency and good product quality. The design method is simple, can meet the ship specification requirements and the using function requirements of outfitting parts, and is suitable for the installation and connection design of outfitting parts on ships, such as pull rings, box legs, mooring holes and the like.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic view of an installation structure of a ship outfitting according to the present invention.
Fig. 2 is a sectional view taken along a-a of fig. 1.
Fig. 3 is a schematic view of a welding structure of the ship outfitting according to the present invention.
Fig. 4 is a second schematic view of a welding structure of the ship outfitting of the present invention.
Wherein the reference numerals are specified as follows: outfitting 1, hull structure board 2, hull structure strengthen 3.
Detailed Description
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
The embodiment provides a ship outfitting single-groove welding installation method, an edge groove of an outfitting 1 is machined in advance according to specific design requirements in a machining mode, but the method is not limited to the machining mode, a hull structural plate 2 can be a hull structural deck or a bulkhead, holes in the hull structural plate 2 and a hull structural reinforcement 3 are all formed by a numerical control cutting machine, the outfitting 1 is installed and welded according to qualified welding parameter requirements, and the welding sequence and direction during welding are flexibly adjusted according to the overall dimension of the outfitting 1.
The method of the embodiment specifically comprises the following steps:
step one, forming a groove on the front surface of the outfitting 1 along the circumference of the outfitting 1, wherein the angle of the groove is 35-45 degrees, and the depth of the groove is 8-10 mm. And arranging a mounting hole on the ship body structure plate 2, wherein the diameter of the mounting hole is slightly larger than the outer diameter of the outfitting 1, and the diameter of the mounting hole is 1-2 mm larger than the outer diameter of the outfitting 1.
Secondly, enabling the outfitting 1 to penetrate through the mounting hole, and connecting a groove between the front surface of the outfitting 1 and the ship body structural plate 2 in a welding mode; the back surface of the outfitting 1 is connected with the ship body structural plate 2 through a fillet weld. Flux-cored wire carbon dioxide gas shielded welding is adopted for welding between the front surface of the outfitting 1 and the hull structural plate 2 and between the back surface of the outfitting 1 and the hull structural plate 2, and the diameter of the welding wire is 1.2 mm. The welding between the outfitting 1 and the hull structural plate 2 comprises backing welding, filling welding and cover surface welding, and the current polarity is DCEP; the current of backing welding is 198-242 amperes, the voltage is 23-27 volts, the welding speed is 15-25.1 cm/min, and the heat input is 12.3-20.5 kilojoules/cm; the current of the filling welding is 216-264 amperes, the voltage is 25-29 volts, the welding speed is 20.2-33.7 cm/min, and the heat input is 10.7-17.9 kilojoules/cm; the current of the cover welding is 216-264 amperes, the voltage is 25-29 volts, the welding speed is 20.2-33.7 cm/min, the heat input is 10.7-17.9 kilojoules/cm, and the specific welding parameters are shown in Table 1. The welding sequence can be divided into two types according to the external dimensions of the outfitting 1: when the diameter is less than or equal to 300mm, welding the two parts from a → b in a clockwise direction according to the requirement of the figure 3; when the diameter is more than 300mm, welding is carried out in four sections and the diagonal lines are staggered according to the requirement of figure 4 from a → b → c → d.
And step three, welding the hull structure reinforcement 3 and the outfitting 1.
Although the present invention has been described in detail with respect to the above embodiments, it will be understood by those skilled in the art that modifications or improvements based on the disclosure of the present invention may be made without departing from the spirit and scope of the invention, and these modifications and improvements are within the spirit and scope of the invention.
Claims (7)
1. The ship outfitting single-groove welding installation method is characterized by comprising the following steps:
step one, forming a groove on the front surface of the outfitting piece along the circumference of the outfitting piece, and forming a mounting hole on the ship body structural plate, wherein the diameter of the mounting hole is slightly larger than the outer diameter of the outfitting piece;
secondly, enabling the outfitting to penetrate through the mounting hole, and connecting a groove between the front surface of the outfitting and the ship body structural plate in a welding mode; the back surface of the outfitting is connected with the hull structure plate in a fillet welding seam filling mode;
and step three, welding the hull structure plate reinforcing and outfitting parts.
2. The ship outfitting single-groove welding installation method of claim 1, wherein in the first step, the angle of the groove is 35-45 degrees, and the depth of the groove is 8-10 mm.
3. The ship outfitting single-groove welding installation method of claim 1, wherein in the first step, the diameter of the installation hole is 1-2 mm larger than the outer diameter of the outfitting.
4. The ship outfitting single-groove welding installation method of claim 1, wherein in the second step, flux-cored carbon dioxide gas shielded welding is adopted for welding between the front surface of the outfitting and the hull structure plate and between the back surface of the outfitting and the hull structure plate, and the diameter of the welding wire is 1.2 mm.
5. The ship outfitting single-groove welding installation method of claim 4, wherein the welding between the outfitting and the ship hull structural plate comprises backing welding, filling welding and cover welding, and the current polarity is DCEP; the current of backing welding is 198-242 amperes, the voltage is 23-27 volts, the welding speed is 15-25.1 cm/min, and the heat input is 12.3-20.5 kilojoules/cm; the current of the filling welding is 216-264 amperes, the voltage is 25-29 volts, the welding speed is 20.2-33.7 cm/min, and the heat input is 10.7-17.9 kilojoules/cm; the current of the cover welding is 216-264 amperes, the voltage is 25-29 volts, the welding speed is 20.2-33.7 cm/min, and the heat input is 10.7-17.9 kilojoules/cm.
6. The ship outfitting single-groove welding installation method of claim 4, wherein if the diameter of the outfitting is less than 300mm, the outfitting and the ship hull structural plate are welded in two sections, and the welding direction is clockwise; if the diameter of the outfitting piece is larger than 300mm, the outfitting piece and the ship body structural plate are welded in four sections, the welding direction is clockwise, and the welding sequence is diagonal staggered welding.
7. The method for single-groove welding and installation of the outfitting of the ship as claimed in claim 1, wherein in the first step, the outfitting is grooved by means of pre-machining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110717519.1A CN113579421A (en) | 2021-06-28 | 2021-06-28 | Single-groove welding installation method for ship outfitting piece |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110717519.1A CN113579421A (en) | 2021-06-28 | 2021-06-28 | Single-groove welding installation method for ship outfitting piece |
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| CN113579421A true CN113579421A (en) | 2021-11-02 |
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| CN202110717519.1A Pending CN113579421A (en) | 2021-06-28 | 2021-06-28 | Single-groove welding installation method for ship outfitting piece |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114622597A (en) * | 2022-03-02 | 2022-06-14 | 上海市隧道工程轨道交通设计研究院 | Connecting structure of fittings of steel shell concrete immersed tube tunnel and construction method of connecting structure |
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| JP2007216242A (en) * | 2006-02-14 | 2007-08-30 | Toyota Motor Corp | Method for correcting welding position in skip-welding |
| CN105127606A (en) * | 2015-09-24 | 2015-12-09 | 中国一冶集团有限公司 | Tuyere flange mounting method |
| CN106238860A (en) * | 2016-08-30 | 2016-12-21 | 苏州海陆重工股份有限公司 | Inner core in lower heap core shell base and base plate welding method in HTGR |
| CN108326419A (en) * | 2017-12-27 | 2018-07-27 | 大族激光科技产业集团股份有限公司 | A kind of high-speed welding method of sheet metal |
-
2021
- 2021-06-28 CN CN202110717519.1A patent/CN113579421A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007216242A (en) * | 2006-02-14 | 2007-08-30 | Toyota Motor Corp | Method for correcting welding position in skip-welding |
| CN105127606A (en) * | 2015-09-24 | 2015-12-09 | 中国一冶集团有限公司 | Tuyere flange mounting method |
| CN106238860A (en) * | 2016-08-30 | 2016-12-21 | 苏州海陆重工股份有限公司 | Inner core in lower heap core shell base and base plate welding method in HTGR |
| CN108326419A (en) * | 2017-12-27 | 2018-07-27 | 大族激光科技产业集团股份有限公司 | A kind of high-speed welding method of sheet metal |
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| 张伟祥等: "系留穴与船体连接方式的优化设计", 《造船技术》 * |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114622597A (en) * | 2022-03-02 | 2022-06-14 | 上海市隧道工程轨道交通设计研究院 | Connecting structure of fittings of steel shell concrete immersed tube tunnel and construction method of connecting structure |
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Application publication date: 20211102 |