CN115158596B - Assembling and welding process for horn mouth coaming pushed at head side - Google Patents
Assembling and welding process for horn mouth coaming pushed at head side Download PDFInfo
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- CN115158596B CN115158596B CN202211000290.0A CN202211000290A CN115158596B CN 115158596 B CN115158596 B CN 115158596B CN 202211000290 A CN202211000290 A CN 202211000290A CN 115158596 B CN115158596 B CN 115158596B
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- 238000003466 welding Methods 0.000 title claims abstract description 73
- 238000000034 method Methods 0.000 title claims abstract description 26
- 210000001503 joint Anatomy 0.000 claims abstract description 33
- 238000009966 trimming Methods 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 15
- 238000013461 design Methods 0.000 claims description 12
- 238000003754 machining Methods 0.000 claims description 7
- 239000010953 base metal Substances 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 238000010276 construction Methods 0.000 abstract description 3
- 239000011324 bead Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
- B63B73/40—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms characterised by joining methods
- B63B73/43—Welding, e.g. laser welding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B73/00—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms
- B63B73/20—Building or assembling prefabricated vessel modules or parts other than hull blocks, e.g. engine rooms, rudders, propellers, superstructures, berths, holds or tanks
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- Optics & Photonics (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The application relates to the technical field of ship construction, in particular to a welding process for a head-side push horn mouth coaming. The assembling and welding process of the head-side push horn mouth coaming comprises the following steps of: firstly, prefabricating a plurality of coaming segments; next, determining the position of an opening of the outer plate, and scribing an opening position line and a plurality of butt joint position lines on the outer plate; next, shifting the position line of the opening inwards by a preset distance to obtain an opening cutting line, and cutting the opening on the outer plate along the opening cutting line; next, a plurality of butt joint position lines are also drawn on the intersection line of the cylinder body; next, respectively assembling a plurality of coaming segments to preset positions to finish preassembling the coaming segments; and next, welding the coaming segments with the outer plate, the coaming segments with the cylinder body and the adjacent coaming segments, so that the assembly welding of the head-side push horn mouth coaming between the cylinder body and the outer plate is smoothly, rapidly and accurately completed.
Description
Technical Field
The application relates to the technical field of ship construction, in particular to a welding process for a head-side push horn mouth coaming.
Background
The structure of the mail wheel head side push horn mouth coaming is very complicated, the mail wheel head side push is three, the three head side pushes are positioned at different rib positions, the shape of the horn mouth is not identical, two horn mouths are arc horn mouths, the other one is conical horn mouths, the line type of the horn mouth is very complicated, the intersection line of the horn mouths and the cylinder body pushed by the head side is a curve, and the intersection line of the horn mouths and the mail wheel outer plate is also a curve, so that the coaming is processed and installed with great difficulty.
Disclosure of Invention
The invention aims to provide a welding process for a horn mouth coaming pushed at the front side, so that the construction of the horn mouth coaming can be smoothly, quickly and accurately completed.
The invention provides a welding process for a head-side push horn mouth coaming, which comprises the following steps of:
step 100, dividing a horn mouth coaming into a plurality of coaming segments along the circumferential direction of the horn mouth coaming, and prefabricating the horn mouth coaming segments to obtain a plurality of coaming segments;
step 200, determining the position of an opening of an outer plate, and scribing an opening position line and a plurality of butt joint position lines on the outer plate, wherein the plurality of butt joint position lines are in one-to-one correspondence with butt joints among a plurality of coaming segments;
step 300, inwards shifting the open hole position line by a preset distance to obtain an open hole cutting line, and marking the open hole cutting line on the outer plate; cutting an opening on the outer plate along an opening cutting line to reserve a repairable allowance for the opening;
step 400, a plurality of joint position lines which correspond to the butt joints among a plurality of coaming segments one by one are also drawn on the intersection line of the cylinder body;
step 500, respectively assembling a plurality of coaming segments to preset positions to finish preassembling the coaming segments;
and 600, welding the coaming segments with the outer plate, the coaming segments with the cylinder body and the adjacent coaming segments.
Further, in step 100, the steps of prefabricating the coaming segments further include:
determining the design size of each coaming segment;
amplifying on the basis of the design size to obtain the machining size of each coaming plate segment;
prefabricating the coaming segments according to the machining size so as to reserve trimming allowance at the peripheral sides of the coaming segments.
Further, the coaming segments are respectively provided with first trimming allowance at two sides facing the outer plate and the cylinder body, and the first trimming allowance is 65-75 mm;
the coaming segments are used for respectively having second trimming allowance towards two sides of two adjacent coaming segments, and the second trimming allowance is 190mm-210mm.
Further, in the step 200, when the hole position line and the butt seam position line are scribed on the outer panel, the method includes the following steps:
marking a water plane and a rib position plane cross line passing through the center point on the outer plate according to the center point data of the cylinder;
marking by a marking template, wherein a positioning cross line and a butt joint line marking line are formed on the marking template; and overlapping the positioning cross line of the scribing sample plate with the cross line on the outer plate, attaching the scribing sample plate to the outer plate, scribing on the outer plate along the outer contour of the outer plate to obtain an opening position line, and scribing on the outer plate along the butt joint mark line on the outer plate to obtain a butt joint position line.
Further, the scoring template is split into two halves along one of the locating cross lines.
Further, in the step 300, the hole cutting line is offset inward from the hole position line by a distance of 45mm to 55mm.
Further, in the step 600, when the coaming segments, the outer plate and the cylinder are welded, the steps are as follows:
before welding, the welding groove and the base metal at the two sides within 20mm are required to be cleaned of dirt;
before formal welding, performing positioning welding between the base materials, and preheating the base materials;
and (5) completing the formal welding of the base material according to the welding requirement.
Further, in step 600, the welding sequence of the base material is:
firstly, welding the coaming segments with the outer plates, then welding the coaming segments with the cylinder body, and finally welding the adjacent coaming segments.
Further, the wheel head side pushes include a first head side push, a second head side push, and a third head side push at different rib positions;
the bell mouth coaming of the first head side push and the second head side push are surrounded to form a conical bell mouth; and the bell mouth surrounding plate at the third head side pushing part is surrounded to form an arc bell mouth.
Further, the thickness of the cylinder body is 30mm, the thickness of the outer plate is 20mm, the thickness of the horn mouth coaming is 25mm, and the material of the horn mouth coaming is DH36.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides a welding process for a head-side push horn mouth coaming, which comprises the following steps of: firstly, dividing a horn mouth coaming into a plurality of coaming segments along the circumferential direction of the horn mouth coaming, and prefabricating the horn mouth coaming into a plurality of coaming segments; next, determining the position of an opening of the outer plate, and scribing an opening position line and a plurality of butt joint position lines on the outer plate, wherein the butt joint position lines are in one-to-one correspondence with the butt joints among the plurality of coaming segments; next, shifting the position line of the opening inwards by a preset distance to obtain an opening cutting line, and scribing the opening cutting line on the outer plate; cutting an opening on the outer plate along an opening cutting line to reserve a repairable allowance for the opening; next, a plurality of joint position lines which are in one-to-one correspondence with the butt joints among a plurality of coaming segments are also drawn on the intersection line of the cylinder body; next, respectively assembling a plurality of coaming segments to preset positions to finish preassembling the coaming segments; and next, welding the coaming segments with the outer plate, the coaming segments with the cylinder body and the adjacent coaming segments, so that the assembly welding of the head-side push horn mouth coaming between the cylinder body and the outer plate is smoothly, rapidly and accurately completed.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of a front-side push horn mouth coaming according to an embodiment of the present invention;
FIG. 2 is a schematic view of a cylinder and an outer plate according to an embodiment of the present invention;
FIG. 3 is a schematic illustration of design dimensions and process dimensions of a shroud segment provided by an embodiment of the present invention;
FIG. 4 is a schematic diagram of a scribing template according to an embodiment of the present invention;
FIG. 5 is a schematic view of an arc horn mouth according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a conical flare according to an embodiment of the present invention.
Reference numerals:
1 horn mouth coaming, 11-coaming segments, 12-butt seams, 2-scribing templates, 3-cylinder and 4-outer plate.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown.
The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.
All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The following describes a head-side push horn mouth coaming assembly welding process according to some embodiments of the present application with reference to fig. 1-6.
The application provides a welding process for a head-side push horn mouth coaming, which comprises the following steps of:
step 100, dividing a horn mouth coaming into a plurality of coaming segments along the circumferential direction of the horn mouth coaming, and prefabricating the horn mouth coaming segments to obtain a plurality of coaming segments;
step 200, determining the position of an opening of an outer plate, and scribing an opening position line and a plurality of butt joint position lines on the outer plate, wherein the plurality of butt joint position lines are in one-to-one correspondence with butt joints among a plurality of coaming segments;
step 300, inwards shifting the open hole position line by a preset distance to obtain an open hole cutting line, and marking the open hole cutting line on the outer plate; cutting an opening on the outer plate along an opening cutting line to reserve a repairable allowance for the opening;
step 400, a plurality of joint position lines which correspond to the butt joints among a plurality of coaming segments one by one are also drawn on the intersection line of the cylinder body;
step 500, respectively assembling a plurality of coaming segments to preset positions to finish preassembling the coaming segments;
and 600, welding the coaming segments with the outer plate, the coaming segments with the cylinder body and the adjacent coaming segments.
The head-side push horn mouth coaming welding process provided by the application comprises the following steps of:
firstly, according to the drawing of the horn mouth coaming 1, dividing the horn mouth coaming 1 into a plurality of coaming segments 11 along the circumferential direction of the horn mouth coaming, for example, as shown in fig. 1, dividing the horn mouth coaming 1 into eight coaming segments 11 with equal arc lengths along the circumferential direction of the horn mouth coaming, and then processing a plurality of coaming segments 11 according to the size data of each coaming segment 11; the multiple panel segments 11 may be joined end-to-end in a predetermined sequence to splice to a complete flare panel 1.
Next, as shown in fig. 2, an opening position is determined on the outer plate 4, that is, a position where the outer plate 4 is used to connect with the cylinder 3 pushed to the head side; the outer panel 4 is marked with a hole position line and a plurality of butt seam position lines, the plurality of butt seam position lines are in one-to-one correspondence with the butt seams 12 between the plurality of coaming segments 11, that is, when the plurality of coaming segments 11 are spliced in the hole position in a predetermined order, the butt seams 12 between the plurality of coaming segments 11 are opposite to one butt seam position line, that is, when the coaming segments 11 are spliced, the positions of the coaming segments 11 can be determined by the butt seam position lines.
Next, shifting the opening position line inward by a predetermined distance to obtain an opening cutting line in the opening position line, and scribing the opening cutting line on the outer plate 4; the outer plate 4 is cut with holes along the cutting lines of the holes, so that a hole with a smaller size is formed in the outer plate 4, modifiable allowance is reserved for the hole, and when the coaming section 11 is assembled subsequently, the hole can be trimmed according to actual conditions so as to be matched with the coaming for installation.
Next, a plurality of butt seam position lines are also drawn on an intersection line formed by intersecting the cylinder 3 and the bell mouth coaming 1, and the butt seam position lines on the cylinder 3 are also in one-to-one correspondence with the butt seams 12 between the coaming segments 11; that is, the butt seam 12 for any adjacent two of the panel segments 11 corresponds to two butt seam position lines, one on the outer panel 4 and one on the cylinder 3, so that the panel segments 11 can be accurately fitted to predetermined positions.
Next, the plurality of coaming segments 11 are assembled to the preset positions between the openings of the outer plate 4 and the cylinder 3, so that the butt joint 12 between any two adjacent coaming segments 11 is opposite to the corresponding butt joint position lines on the outer plate 4 and the cylinder 3, the preassembly of the plurality of coaming segments 11 is completed, the coaming segments 11 are assembled in place, and the assembly precision is guaranteed.
Next, the adjacent coaming segments 11, the coaming segments 11 and the outer plate 4, and the coaming segments 11 and the cylinder 3 are welded, so that the assembly welding of the head-side push horn mouth coaming 1 between the cylinder 3 and the outer plate 4 is smoothly, rapidly and accurately completed.
In this embodiment, preferably, in step 100, when prefabricating the shroud segments, as shown in fig. 3, the steps of:
firstly, according to the drawing of the horn mouth coaming 1, after the horn mouth coaming 1 is divided into a plurality of coaming sections 11 along the axial direction thereof, the design size of each coaming section 11 can be obtained according to the drawing, namely if the plurality of coaming sections 11 are processed according to the design size, the obtained coaming sections 11 can be spliced end to end in sequence to form the complete horn mouth coaming 1 meeting the design requirement.
Next, after the design size of each of the shroud segments 11 is determined, the shroud segments 11 are enlarged based on the design size, as shown in fig. 3, the machining size of each of the shroud segments 11 is obtained, and the shroud segments 11 are machined according to the machining size, so that the obtained shroud segments 11 are larger in shape by one circle than the shroud segments of the standard size, and the peripheral sides of the prefabricated shroud segments 11 are reserved with trimming margins. When the coaming segments 11 are assembled to the preset positions between the outer plate 4 and the cylinder 3 in the step 500, the holes can be trimmed as required, and the peripheries of the coaming segments 11 can be trimmed as required, so that machining errors are overcome, and each coaming segment 11 can be accurately assembled to the preset position.
In this embodiment, it is preferable that the trimming margins reserved for the outside plate 4 and the cylinder 3 toward both sides of the coaming segment 11 are first trimming margins compared to the design size, and the trimming margins reserved for the coaming segment 11 toward both sides of the adjacent two coaming segments are second trimming margins compared to the design size. Specifically, the first trimming allowance is 65mm-75mm, and the second trimming allowance is 190mm-210mm; further preferably, the first trimming margin is 70mm and the second trimming margin is 200mm. So that sufficient trimming margins are reserved around the peripheral plate segments 11 respectively to accommodate the fit errors of the components at the assembly positions.
In this embodiment, it is preferable that the process of scribing the hole position line and the butt seam position line on the outer panel in step 200 includes the steps of:
firstly, position data of a central point of a cylinder pushed at the first side is determined according to a drawing of a mail wheel, an intersection line of a water plane passing through the central point and the outer plate, namely a water line is marked on the outer plate, an intersection line of a rib position plane passing through the central line point and the outer plate, namely a rib position line is marked on the outer plate, and the water line is intersected with the rib position line, so that a cross line is formed on the outer plate.
Next, as shown in fig. 4, a positioning cross line is formed on the outer plate by scribing the outer plate with the scribing template 2, and the scribing template is placed on the outer plate so that the positioning cross line of the scribing template coincides with the cross line on the outer plate, and at this time, the scribing template can be completely attached to the position where the hole is required on the outer plate.
Next, the outer contour line of the scribing template is an opening position line, and the opening position line can be scribed on the outer plate along the outer contour scribing of the scribing outer plate; the scribing template is also provided with a plurality of butt joint mark lines, the plurality of butt joint mark lines correspond to the butt joints of the plurality of coaming segments one by one, and the outer plate can be scribed with the butt joint mark lines along the butt joint mark lines on the scribing template, so that the outer plate can be scribed with the butt joint position lines, and the butt joint position lines and the perforating position lines can be accurately scribed through the scribing template.
In this embodiment, it is preferable that the scribing template is divided into two halves along one of the positioning cross lines in order to facilitate lifting of the scribing template to the hole opening position and to accurately position the scribing template and the outer panel, due to the large size of the scribing template; and when scribing, the two half scribing templates are respectively lifted to preset positions and spliced into a complete scribing template.
In this embodiment, the position of the cut line of the hole is preferably 45mm-55mm inward from the position line of the hole, and more preferably 50mm, in step 300, so that a hole trimming allowance is reserved on the outer panel, so that the hole can be trimmed according to the actual assembly condition when the panel segment is assembled.
In this embodiment, preferably, in step 600, the welding of the coaming segments, the outer plate, and the barrel comprises the following steps;
firstly, removing dirt, such as oxide, moisture, greasy dirt, other dirt and the like, from a welding groove and parent metals within the range of 20mm on two sides before welding; the base material is the collective name of the coaming section, the outer plate and the cylinder body which need to be welded.
And secondly, performing tack welding between the base materials, preheating the base materials after the tack welding, and then completing the formal welding of the base materials according to welding requirements. When the positioning welding is carried out, the length of the positioning welding is at least 50mm; if the tack weld breaks or other unacceptable defects exist, the tack weld is shaved off and the tack weld is re-performed.
Before formal welding, the base metal needs to be preheated, and when the temperature of the base metal is lower than 0 ℃, the base metal is preheated to at least 50 ℃; if weld repair occurs, the preheating temperature needs to be increased by 25 ℃ and at least not lower than 50 ℃.
In the process of formal welding, the welding operation of the whole welding line should be completed as once as possible strictly according to the technological specification; when multi-layer multi-pass welding is adopted, a welder needs to remove welding slag and splash after welding each welding bead, and the joint positions of each welding bead should be staggered from each other by not less than 50mm so as to ensure the welding quality.
In this embodiment, preferably, in step 600, the welding sequence between the base materials is that the coaming segment and the outer plate are welded first, then the coaming segment and the cylinder are welded, and finally the adjacent coaming is welded, so that the welding quality is ensured, and the large deformation generated during welding is avoided.
In one embodiment of the present application, preferably, the first side push of the postal wheel includes three first side pushes at different rib positions, which are a first side push, a second side push, and a third side push, respectively, where, as shown in fig. 6, a bell mouth enclosure of the first side push and the second side push encloses a bell mouth formed to be a conical bell mouth, and, as shown in fig. 5, a bell mouth enclosure of the third side push encloses a bell mouth formed to be an arc bell mouth. When the horn mouth coaming of three first side pushes away is assembled, corresponding coaming segmentation and scribing template that is used for the marking are prefabricated corresponding with three first side pushes away, then according to the dress welding technology of this application, can accomplish the dress welding of first side push horn mouth coaming smoothly, fast, accurately.
Preferably, the thickness of the cylinder body is 30mm, the thickness of the outer plate is 20mm, the horn mouth coaming is a DH36 ship plate (high-strength ship plate), and the thickness of the horn mouth coaming is 25mm, so that the strength of the horn mouth coaming is ensured, and the welding with the cylinder body and the outer plate is facilitated.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (9)
1. The assembling and welding process for the horn mouth coaming is characterized by comprising the following steps of:
step 100, dividing a horn mouth coaming into a plurality of coaming segments along the circumferential direction of the horn mouth coaming, and prefabricating the horn mouth coaming segments to obtain a plurality of coaming segments;
step 200, determining the position of an opening of an outer plate, and scribing an opening position line and a plurality of butt joint position lines on the outer plate, wherein the plurality of butt joint position lines are in one-to-one correspondence with butt joints among a plurality of coaming segments;
step 300, inwards shifting the open hole position line by a preset distance to obtain an open hole cutting line, and marking the open hole cutting line on the outer plate; cutting an opening on the outer plate along an opening cutting line to reserve a repairable allowance for the opening;
step 400, a plurality of joint position lines which correspond to the butt joints among a plurality of coaming segments one by one are also drawn on the intersection line of the cylinder body;
step 500, respectively assembling a plurality of coaming segments to preset positions to finish preassembling the coaming segments;
step 600, welding the coaming segment and the outer plate, the coaming segment and the barrel body and the adjacent coaming segments;
in the step 200, when scribing the hole position line and the butt seam position line on the outer panel, the method includes the steps of:
marking a water plane and a rib position plane cross line passing through the center point on the outer plate according to the center point data of the cylinder;
marking by a marking template, wherein a positioning cross line and a butt joint line marking line are formed on the marking template; and overlapping the positioning cross line of the scribing sample plate with the cross line on the outer plate, attaching the scribing sample plate to the outer plate, scribing on the outer plate along the outer contour of the outer plate to obtain an opening position line, and scribing on the outer plate along the butt joint mark line on the outer plate to obtain a butt joint position line.
2. The welding process of a head-to-side push horn mouth enclosure according to claim 1, wherein in step 100, the steps of prefabricating the enclosure segments further comprise:
determining the design size of each coaming segment;
amplifying on the basis of the design size to obtain the machining size of each coaming plate segment;
prefabricating the coaming segments according to the machining size so as to reserve trimming allowance at the peripheral sides of the coaming segments.
3. The welding process of the head-side push horn mouth coaming according to claim 2, wherein the coaming sections are respectively provided with first trimming allowance at two sides facing the outer plate and the cylinder body, and the first trimming allowance is 65mm-75mm;
the coaming segments are used for respectively having second trimming allowance towards two sides of two adjacent coaming segments, and the second trimming allowance is 190mm-210mm.
4. The head-to-side push horn mouth coaming assembly welding process of claim 1, wherein the scoring template is split into two halves along one of the locating cross wires.
5. The head-to-side push horn mouth coaming assembly welding process of claim 1, wherein in step 300 the hole cut line is offset inward from the hole position line by a distance of 45mm to 55mm.
6. The welding process for the front-side push horn mouth coaming according to claim 1, wherein in the step 600, when the coaming is segmented, the outer plate is welded with the cylinder, the method comprises the following steps:
before welding, the welding groove and the base metal at the two sides within 20mm are required to be cleaned of dirt;
before formal welding, performing positioning welding between the base materials, and preheating the base materials;
and (5) completing the formal welding of the base material according to the welding requirement.
7. The welding process of the head-to-side push horn mouth coaming of claim 6, wherein in step 600, the welding sequence of the base material is:
firstly, welding the coaming segments with the outer plates, then welding the coaming segments with the cylinder body, and finally welding the adjacent coaming segments.
8. The head-push flare coaming assembly welding process of claim 1 wherein the wheel head-pushes comprise a first head-push, a second head-push and a third head-push at different rib locations;
the bell mouth coaming of the first head side push and the second head side push are surrounded to form a conical bell mouth;
and the bell mouth surrounding plate at the third head side pushing part is surrounded to form an arc bell mouth.
9. The welding process of the head-side push horn mouth coaming according to claim 1, wherein the thickness of the cylinder body is 30mm, the thickness of the outer plate is 20mm, the thickness of the horn mouth coaming is 25mm, and the material of the horn mouth coaming is DH36.
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| CN202211000290.0A CN115158596B (en) | 2022-08-19 | 2022-08-19 | Assembling and welding process for horn mouth coaming pushed at head side |
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| CN202211000290.0A CN115158596B (en) | 2022-08-19 | 2022-08-19 | Assembling and welding process for horn mouth coaming pushed at head side |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1253873A1 (en) * | 1984-02-08 | 1986-08-30 | Войсковая часть 27177 | Versions of riveted joint of sheets in ship structures |
| CN105666058A (en) * | 2016-03-07 | 2016-06-15 | 福建省马尾造船股份有限公司 | Making process for bell-mouthed round steel connecting piece of lateral thrust pipe |
| KR20160083543A (en) * | 2014-12-31 | 2016-07-12 | 에스티엑스조선해양 주식회사 | Welded structure for hatch coaming |
| CN107391798A (en) * | 2017-06-22 | 2017-11-24 | 中船黄埔文冲船舶有限公司 | A kind of three-dimensional modeling method of side selection structure |
| KR20180046706A (en) * | 2016-10-28 | 2018-05-09 | 대우조선해양 주식회사 | Welded structure apllied to upper deck support of container ship |
| CN108860451A (en) * | 2018-06-06 | 2018-11-23 | 广州中船文冲船坞有限公司 | Mounting process is built in scientific investigation shipboard push hole device setting-out |
| CN109263795A (en) * | 2018-10-25 | 2019-01-25 | 中船黄埔文冲船舶有限公司 | A kind of production method that side pushes away horn mouth coaming plate and deflector |
| CN110481703A (en) * | 2019-08-29 | 2019-11-22 | 广州黄船海洋工程有限公司 | A kind of production method of deflector peculiar to vessel |
-
2022
- 2022-08-19 CN CN202211000290.0A patent/CN115158596B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1253873A1 (en) * | 1984-02-08 | 1986-08-30 | Войсковая часть 27177 | Versions of riveted joint of sheets in ship structures |
| KR20160083543A (en) * | 2014-12-31 | 2016-07-12 | 에스티엑스조선해양 주식회사 | Welded structure for hatch coaming |
| CN105666058A (en) * | 2016-03-07 | 2016-06-15 | 福建省马尾造船股份有限公司 | Making process for bell-mouthed round steel connecting piece of lateral thrust pipe |
| KR20180046706A (en) * | 2016-10-28 | 2018-05-09 | 대우조선해양 주식회사 | Welded structure apllied to upper deck support of container ship |
| CN107391798A (en) * | 2017-06-22 | 2017-11-24 | 中船黄埔文冲船舶有限公司 | A kind of three-dimensional modeling method of side selection structure |
| CN108860451A (en) * | 2018-06-06 | 2018-11-23 | 广州中船文冲船坞有限公司 | Mounting process is built in scientific investigation shipboard push hole device setting-out |
| CN109263795A (en) * | 2018-10-25 | 2019-01-25 | 中船黄埔文冲船舶有限公司 | A kind of production method that side pushes away horn mouth coaming plate and deflector |
| CN110481703A (en) * | 2019-08-29 | 2019-11-22 | 广州黄船海洋工程有限公司 | A kind of production method of deflector peculiar to vessel |
Non-Patent Citations (2)
| Title |
|---|
| 侧推筒体定位安装工艺研究;熊飞;姚杰;;广东造船(第05期);全文 * |
| 某科考船艏侧推加封盖安装方案;钟伟怀;杨成;;中国修船(第02期);全文 * |
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| CN115158596A (en) | 2022-10-11 |
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