CN112550607B - Manufacturing method of duplex stainless steel trough bulkhead - Google Patents
Manufacturing method of duplex stainless steel trough bulkhead Download PDFInfo
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- CN112550607B CN112550607B CN202011387321.3A CN202011387321A CN112550607B CN 112550607 B CN112550607 B CN 112550607B CN 202011387321 A CN202011387321 A CN 202011387321A CN 112550607 B CN112550607 B CN 112550607B
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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
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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
- B63B73/60—Building or assembling vessels or marine structures, e.g. hulls or offshore platforms characterised by the use of specific tools or equipment; characterised by automation, e.g. use of robots
Abstract
The invention relates to a method for manufacturing a duplex stainless steel trough type bulkhead, which comprises the following steps: s1, carrying out primary treatment on the stainless steel plate, and checking the size precision of the stainless steel plate; s2, processing a stainless steel slot plate, and manufacturing a sample plate for inspection; s3, manufacturing a stainless steel groove type bulkhead jig frame, and installing and fixing a stainless steel backing plate on the stainless steel groove type bulkhead jig frame; s4, splicing and positioning the stainless steel groove-shaped plates on the stainless steel groove-shaped bulkhead jig; s5, placing a pressing block on the stainless steel groove-shaped plate, and welding the stainless steel groove-shaped plate to form a stainless steel groove-shaped jointed plate; s6, manufacturing a hoisting tool to hoist the stainless steel groove type jointed plates, wherein the hoisting tool comprises an A-type hoisting beam and a B-type hoisting beam, and the stainless steel groove type jointed plates are divided into a middle section stainless steel jointed plate, a left side stainless steel jointed plate and a right side stainless steel jointed plate. By the method, the precision and the quality are controlled in the whole process from the stainless steel plate stage to the stainless steel groove type plate splicing stage, and the construction quality of the sections and the ship is improved.
Description
Technical Field
The invention relates to the technical field of ship construction, in particular to a manufacturing method of a duplex stainless steel trough bulkhead.
Background
In recent years, various novel ships are built successively, the structural strength is ensured, meanwhile, higher requirements are put forward for the self weight of the ship structure, and the trough type bulkhead structure is produced at the same time. The channel bulkhead is formed by pressing steel plates, and channel bending of the channel bulkhead replaces a strengthening material, so that the structural weight can be reduced and the material can be saved under the condition of ensuring the same strength.
The prior art, as an invention patent with application number 201810550831.4, discloses a sectional construction method of a groove-shaped bulkhead, which comprises the steps of bending and pressing prefabricated steel plates according to the design requirements of a ship to form Z-shaped bulkhead components, assembling and welding a plurality of Z-shaped bulkhead components on a jig frame to form the groove-shaped bulkhead, assembling and forming the groove-shaped bulkhead and the wall pier components, then installing an anti-accumulation plate between the groove-shaped bulkhead and the wall pier components, and carrying out air tightness inspection on connecting welding seams between the anti-accumulation plate and the groove-shaped bulkhead and the wall pier components.
In order to improve the quality and the installation precision of the duplex stainless steel tank type bulkhead, the application provides a method for manufacturing the duplex stainless steel tank type bulkhead, and the requirements of the flatness and the welding quality of the tank type bulkhead are met.
Disclosure of Invention
In order to realize the technical purpose, the invention provides a manufacturing method of a duplex stainless steel trough bulkhead, which controls the precision and the quality in the processes from plate splicing to welding to hoisting and improves the ship construction quality, and the technical purpose of the invention is realized by the following technical scheme:
a method of fabricating a duplex stainless steel channel bulkhead, the method comprising:
s1, carrying out primary treatment on the stainless steel plate, and checking the size precision of the stainless steel plate;
s2, processing the stainless steel trough plate, pressing the stainless steel plate into the stainless steel trough plate, and manufacturing a sample plate for inspection;
s3, manufacturing a stainless steel groove type bulkhead jig frame, and installing and fixing a stainless steel backing plate on the stainless steel groove type bulkhead jig frame;
s4, splicing and positioning the stainless steel groove-shaped plates on the stainless steel groove-shaped bulkhead jig;
s5, placing a pressing block on the stainless steel groove-shaped plate, and welding the stainless steel groove-shaped plate to form a stainless steel groove-shaped jointed plate;
s6, manufacturing a hoisting tool to hoist the stainless steel groove type jointed boards, wherein the hoisting tool comprises an A-type hoisting beam and a B-type hoisting beam, the stainless steel groove type jointed boards are divided into a middle section stainless steel jointed board, a left side stainless steel jointed board and a right side stainless steel jointed board, the left side stainless steel jointed board and the right side stainless steel jointed board are respectively installed on two sides of the middle section stainless steel jointed board, and the middle section stainless steel jointed board, the left side stainless steel jointed board and the right side stainless steel jointed board are spliced to form the duplex stainless steel groove type bulkhead.
Further, the step S1 includes stainless steel plate storage and stainless steel plate size correction, wherein the stainless steel plates are stacked and placed on a plane when stored, and cushion blocks are uniformly placed among the stainless steel plates; when the dimension of the stainless steel plate is corrected, the length, the width and the diagonal length of the stainless steel plate are measured, the measured length, the measured width and the measured diagonal length are respectively compared with the theoretical value of the stainless steel plate, the tolerance of the measured length and the measured width to the length and the width of the theoretical value is not more than 1mm, and the tolerance of the measured diagonal length to the diagonal theoretical value is not more than 3 mm.
Further, in S2, before the stainless steel channel plate is machined, a circle turning line is drawn on the stainless steel plate, a circle is pressed out on the stainless steel plate with the circle turning line as a center line, and a template is used to check whether the circle meets the requirement.
Furthermore, the circle turning line comprises a first circle turning line, a second circle turning line, a third circle turning line and a fourth circle turning line which are drawn in sequence, the first circle turning line and the fourth circle turning line are symmetrical about the center line of the stainless steel plate, the second circle turning line and the third circle turning line are symmetrical about the center line of the stainless steel plate, the first circle turning line and the fourth circle turning line are drawn on one surface of the stainless steel plate, and the second circle turning line and the third circle turning line are drawn on the other surface of the stainless steel plate.
Further, stainless steel channel type bulkhead bed-jig includes stand, base, frame, and base horizontal installation is in the upper end of a plurality of stands, and the frame mounting is on the base, and the frame is isosceles trapezoid frame, and the cell type of frame and stainless steel channel type board cooperatees.
Further, the manufacturing method of the stainless steel channel type bulkhead jig frame comprises the following steps:
s7, popping up a center line of the jig frame and a groove-shaped center line of the stainless steel groove-shaped plate on the ground according to a jig frame drawing, and vertically installing upright posts to ensure that the heights of the upright posts are the same;
s8, mounting and fixing the base on the upper end of the upright post;
s9, mounting and fixing the frame on the base, wherein the middle part of the frame is aligned with the central line of the groove;
and S10, welding a stainless steel backing plate along the outer side of the frame.
Further, in S5, compacts are placed at both ends of the stainless steel channel plate.
Furthermore, the A-type hanging beam comprises a steel beam shaped like a Chinese character 'wang', reinforcing plates and connecting plates, wherein the reinforcing plates are arranged perpendicular to the steel beam shaped like a Chinese character 'wang', the connecting plates are arranged at the lower ends of the steel beam shaped like a Chinese character 'wang' and correspond to the reinforcing plates, sealing plates are respectively arranged at two ends of the steel beam shaped like a Chinese character 'wang', and the steel beam shaped like a Chinese character 'wang' is perpendicular to the sealing plates; the B-type hanging beam comprises an I-shaped steel beam, reinforcing plates and connecting plates, wherein the plurality of reinforcing plates are perpendicular to the I-shaped steel beam, and the connecting plates are arranged at the positions, corresponding to the reinforcing plates, of the lower end of the I-shaped steel beam.
Furthermore, a class A hanging beam is arranged on one side of the middle-section stainless steel jointed board, and a class B hanging beam is arranged on the other side of the middle-section stainless steel jointed board; b-type hanging beams are arranged on both sides of the left stainless steel jointed board and both sides of the right stainless steel jointed board; the A-type hanging beam and the B-type hanging beam are welded on the groove-shaped back of the stainless steel groove-shaped jointed board through connecting plates, and one end of the sealing plate is fixed in the middle of the groove shape on the outer side of the stainless steel groove-shaped jointed board.
Furthermore, after welding one surface of the stainless steel groove type jointed board, a type A hanging beam or a type B hanging beam is installed, and after the stainless steel groove type jointed board is integrally turned over for 180 degrees, a type B hanging beam is installed on the other surface of the stainless steel groove type jointed board.
Compared with the prior art, the invention has the beneficial effects that:
1. the precision and the quality are controlled in the whole process from the stainless steel plate stage to the stainless steel groove type plate splicing stage, and the construction quality of the sections and the ship is improved;
2. compared with the existing jig frame, the specially-made stainless steel groove type bulkhead jig frame is more consistent with the structural form of the stainless steel groove type plate and more stable in placement, and meanwhile, the stainless steel groove type bulkhead jig frame can be used for checking whether the groove type processing of the stainless steel groove type plate meets the requirements or not;
3. the A-type hanging beam and the B-type hanging beam can respectively realize the hoisting of different stainless steel groove-type jointed boards, and the B-type hanging beam can avoid the problem that the stainless steel groove-type jointed boards deform during hoisting.
Drawings
FIG. 1 is a flow chart of the process for making the duplex stainless steel channel bulkhead of the present invention.
Fig. 2 is a schematic structural view of a stainless steel channel type bulkhead jig frame in the invention.
Fig. 3 is a schematic cross-sectional view of a class a suspension beam according to the present invention.
Fig. 4 is a schematic cross-sectional view of a class B suspension beam of the present invention.
Fig. 5 is a top view of the installation of the class a suspension beam of the present invention.
Fig. 6 is a view a-a of fig. 5.
FIG. 7 is a schematic diagram of the structure of the template of the present invention.
FIG. 8 is a schematic view of a panel of stainless steel channel plates according to the present invention.
In the figure, 1, a column; 2. a base; 3. a frame; 4. a stainless steel backing plate; 5. a slot-shaped center line; 6. h-shaped steel; 7. h-shaped steel with a broken web plate; 8. a reinforcing plate; 9. a connecting plate; 10. a load-bearing suspension ring; 11. steering a lifting ring; 12. closing the plate; 13. a steel beam shaped like Chinese character 'wang'; 14. bracing; 15. an I-shaped steel beam; 16. a hand-held hole; 17. turning a circle; 18. briquetting; 19. an upper opening; 20. and a lower opening.
Detailed Description
The technical solution of the present invention is further described below with reference to specific embodiments:
a method of fabricating a duplex stainless steel channel bulkhead, as shown in fig. 1, comprising:
specifically, before the stainless steel trough plate is processed, 4 circle turning lines are marked on a stainless steel plate, a circle turning line is taken as a central line to press a circle turning on the stainless steel plate, and a sample plate is used for checking whether the circle turning meets the requirement; the circle turning line comprises a first circle turning line, a second circle turning line, a third circle turning line and a fourth circle turning line which are drawn in sequence, the first circle turning line and the fourth circle turning line are symmetrical about the center line of the stainless steel plate, the second circle turning line and the third circle turning line are symmetrical about the center line of the stainless steel plate, the first circle turning line and the fourth circle turning line are drawn on one surface of the stainless steel plate, and the second circle turning line and the third circle turning line are drawn on the other surface of the stainless steel plate; the radius of the circle at the position of the first circle-turning line is the same as that of the circle at the position of the fourth circle-turning line; the radius of the circle at the position of the second circle-turning line is the same as that of the circle at the position of the third circle-turning line; manufacturing a sample plate according to the radius of the turning circle, wherein the two ends of the sample plate are respectively provided with the turning circle, and the sample plate is provided with a handheld hole, as shown in figure 7; when the rotary testing device is used, the rotary circle of the sample plate is placed at the rotary circle position of the stainless steel trough plate, whether the rotary circle edge of the sample plate can be completely attached to the rotary circle position of the stainless steel trough plate or not is observed, and the complete attachment indicates that the rotary circle is free from errors during machining.
And 3, manufacturing a stainless steel groove type bulkhead jig frame, wherein the stainless steel groove type bulkhead jig frame comprises upright posts 1, a base 2 and a frame 3, as shown in figure 2, the base 2 is horizontally arranged at the upper ends of the upright posts 1, the frame 3 is arranged on the base 2, the frame 3 is an isosceles trapezoid frame, and the frame 3 is matched with the groove type of the stainless steel groove type plate.
The manufacturing method of the stainless steel groove type bulkhead jig frame comprises the following steps:
s7, popping up a jig frame central line and a groove-shaped central line 5 of a stainless steel groove-shaped plate on the ground according to a jig frame drawing, vertically installing an upright post 1, wherein the upright post 1 is an angle steel upright post, and ensuring that the heights of the upright posts 1 are the same;
s8, mounting and fixing the base 2 at the upper end of the upright post 1, wherein the base 2 is of a horizontal steel frame structure;
s9, mounting and fixing the frame 3 on the base 2, wherein the middle part of the frame 3 is aligned with the groove-shaped central line 5;
and S10, welding a stainless steel backing plate 4 along the outer side of the frame 3.
step 5, placing pressing blocks 18 at two ends of the stainless steel groove-shaped plate, wherein the pressing blocks 18 are made of pressing iron, the weight of each pressing block is 3T, when the pressing blocks 18 are placed on the stainless steel groove-shaped plate, firstly, a layer of three-proofing cloth is laid on the stainless steel groove-shaped plate, then, the pressing blocks are placed on the stainless steel groove-shaped plate, and the stainless steel groove-shaped plate is welded to form a stainless steel groove-shaped splicing plate; when the stainless steel groove type jointed boards are welded, recording current and voltage parameters, welding speed, interlayer temperature and the like when each stainless steel groove type jointed board is welded; the welding angular deformation is controlled within the range of 5mm, welding is carried out from the middle welding line to the welding lines at two sides during welding, and welding is carried out from the middle to two ends during welding of a single welding line.
S6, manufacturing a hoisting tool to hoist the stainless steel channel jointed plates, wherein the hoisting tool comprises an A-type hoisting beam and a B-type hoisting beam, the A-type hoisting beam comprises a steel beam 13 shaped like a Chinese character 'wang', reinforcing plates 8 and connecting plates 9, a plurality of reinforcing plates 8 are arranged perpendicular to the steel beam shaped like a Chinese character 'wang', the steel beam shaped like a Chinese character 'wang' is formed by welding an H-shaped steel 6 and an H-shaped steel 7 with a broken web plate, the connecting plates 9 are arranged at the lower ends of the steel beam shaped like a Chinese character 'wang', corresponding to the reinforcing plates, two ends of the steel beam shaped like a Chinese character 'wang' are respectively provided with a sealing plate 12, and the steel beam shaped like a Chinese character 'wang' is perpendicular to the sealing plates 12; the B-type hanging beam comprises an I-shaped steel beam, a reinforcing plate 8 and a connecting plate 9, the I-shaped steel beam is H-shaped steel 6, the I-shaped steel beam is reinforced in a plurality of positions, the positions are perpendicular to the I-shaped steel beam, and the connecting plate 9 is installed at the position, corresponding to the reinforcing plate, of the lower end of the I-shaped steel beam.
The stainless steel groove-shaped jointed board is divided into a middle section stainless steel jointed board, a left side stainless steel jointed board and a right side stainless steel jointed board, the left side stainless steel jointed board and the right side stainless steel jointed board are respectively installed on two sides of the middle section stainless steel jointed board, the left side stainless steel jointed board and the right side stainless steel jointed board are spliced to form the double-phase stainless steel groove-shaped bulkhead, the length of the middle section stainless steel jointed board is about 15m, and the width of the middle section stainless steel jointed board is about 11 m; the width of the left stainless steel jointed board and the width of the right stainless steel jointed board are generally 7m, the maximum length of the left stainless steel jointed board and the right stainless steel jointed board are generally about 15m, and the maximum length of the left stainless steel jointed board and the right stainless steel jointed board is equal to the length of the middle stainless steel jointed board.
Therefore, the hoisting of the middle section of the stainless steel jointed board is different from the hoisting of the left side stainless steel jointed board and the right side stainless steel jointed board; a class A hanging beam is arranged on one side of the middle section stainless steel jointed plate, and a class B hanging beam is arranged on the other side of the middle section stainless steel jointed plate; b-type hanging beams are arranged on both sides of the left stainless steel jointed board and both sides of the right stainless steel jointed board; the A-type hanging beam and the B-type hanging beam are welded on the groove-shaped back of the stainless steel groove-shaped jointed board through connecting plates, and one end of the sealing plate is fixed in the middle of the groove shape on the outer side of the stainless steel groove-shaped jointed board.
For the middle section stainless steel jointed board, installing a class A hanging beam after one side is welded, turning the whole stainless steel groove-shaped jointed board 180 degrees, and then installing a class B hanging beam; for the left stainless steel jointed board and the right stainless steel jointed board, a B-type hanging beam is installed after one surface of the left stainless steel jointed board and the right stainless steel jointed board are welded, then the left stainless steel jointed board and the right stainless steel jointed board are integrally turned for 180 degrees and then welded, and the other surface of the left stainless steel jointed board and the right stainless steel jointed board is installed with the B-type hanging beam.
Taking a middle section stainless steel jointed board as an example, as shown in fig. 3-6, firstly welding jointed boards on one surface of a stainless steel groove type bulkhead jig, then welding a connecting plate of a class A hanging beam on the groove type back surface of the stainless steel groove type jointed board, welding sealing plates at two ends of the class A hanging beam on an upper opening 19 and a lower opening 20 of the middle section stainless steel jointed board, as shown in fig. 3, two steel beams shaped like a Chinese character 'wang' are vertical to one sealing plate 12; a bearing lifting ring 10 is arranged on the A-type lifting beam; a steering hanging ring 11 is welded on a sealing plate 12 at the position of a lower opening 20, an inclined strut 14 is installed on the sealing plate 12 on which the hanging ring is installed, one end of the inclined strut 14 is welded on the sealing plate 12, and the other end of the inclined strut is welded on a steel beam shaped like Chinese character 'wang'. During hoisting, hoisting equipment is used for hoisting the middle section of the stainless steel jointed board on the bearing hoisting ring, then the steering hoisting ring is pulled to turn over the middle section of the stainless steel jointed board for 180 degrees and then place the middle section of the stainless steel jointed board on the stainless steel groove type bulkhead jig frame, then the butt weld of the other side is welded, the B-type hoisting ring is installed after welding, the connecting plate of the B-type hoisting ring is welded on the groove-shaped back of the other side of the middle section of the stainless steel jointed board, and the B-type hoisting ring can prevent the middle section of the stainless steel jointed board from deforming in the hoisting process.
And finally, hoisting the middle stainless steel jointed plate, the left stainless steel jointed plate and the right stainless steel jointed plate to form a duplex stainless steel tank type bulkhead, then coating lime water on the surface of the duplex stainless steel tank type bulkhead to prevent rusting, reserving an installation position of the outfitting piece, not coating the lime water, and installing the outfitting piece.
The present invention is further explained and not limited by the embodiments, and those skilled in the art can make various modifications as necessary after reading the present specification, but all the embodiments are protected by the patent law within the scope of the claims.
Claims (10)
1. A method of forming a duplex stainless steel channel bulkhead, comprising:
s1, carrying out primary treatment on the stainless steel plate, and checking the size precision of the stainless steel plate;
s2, processing the stainless steel trough plate, pressing the stainless steel plate into the stainless steel trough plate, and manufacturing a sample plate for inspection;
s3, manufacturing a stainless steel groove type bulkhead jig frame, and installing and fixing a stainless steel backing plate on the stainless steel groove type bulkhead jig frame;
s4, splicing and positioning the stainless steel groove-shaped plates on the stainless steel groove-shaped bulkhead jig;
s5, placing a pressing block on the stainless steel groove-shaped plate, and welding the stainless steel groove-shaped plate to form a stainless steel groove-shaped jointed plate;
s6, manufacturing a hoisting tool to hoist the stainless steel groove-shaped jointed plates, wherein the hoisting tool comprises an A-type hoisting beam and a B-type hoisting beam, the A-type hoisting beam comprises a steel beam shaped like a Chinese character 'wang', reinforcing plates and connecting plates, the reinforcing plates are perpendicular to the steel beam shaped like a Chinese character 'wang', the steel beam shaped like a Chinese character 'wang' is formed by welding an H-shaped steel (6) and an H-shaped steel with a broken web plate, the connecting plates are installed at the lower ends of the steel beam shaped like a Chinese character 'wang' corresponding to the reinforcing plates, two ends of the steel beam shaped like a Chinese character 'wang' are respectively provided with a sealing plate, and the steel beam shaped like a Chinese character 'wang' is perpendicular to the sealing plates; the B-type hanging beam comprises an I-shaped steel beam, reinforcing plates and connecting plates, wherein the I-shaped steel beam is H-shaped steel, the reinforcing plates are arranged perpendicular to the I-shaped steel beam, and the connecting plates are arranged at the lower end of the I-shaped steel beam corresponding to the reinforcing plates; the stainless steel groove-shaped jointed board is divided into a middle section stainless steel jointed board, a left side stainless steel jointed board and a right side stainless steel jointed board, the left side stainless steel jointed board and the right side stainless steel jointed board are respectively installed on two sides of the middle section stainless steel jointed board, and the middle section stainless steel jointed board, the left side stainless steel jointed board and the right side stainless steel jointed board are spliced to form the dual-phase stainless steel groove-shaped bulkhead.
2. The method as claimed in claim 1, wherein the step S1 includes stacking stainless steel plates on a flat surface when the stainless steel plates are stored, and uniformly placing spacers between the stainless steel plates; when the dimension of the stainless steel plate is corrected, the length, the width and the diagonal length of the stainless steel plate are measured, the measured length, the measured width and the measured diagonal length are respectively compared with the theoretical value of the stainless steel plate, the tolerance of the measured length and the measured width to the length and the width of the theoretical value is not more than 1mm, and the tolerance of the measured diagonal length to the diagonal theoretical value is not more than 3 mm.
3. The method as claimed in claim 1, wherein in step S2, before the stainless steel channel plate is machined, a circle-turning line is drawn on the stainless steel plate, a circle is pressed on the stainless steel plate with the circle-turning line as a center line, and the sample plate is used to check whether the circle meets the requirement.
4. The method as claimed in claim 3, wherein the circle turning lines include a first circle turning line, a second circle turning line, a third circle turning line and a fourth circle turning line which are sequentially drawn, the first circle turning line and the fourth circle turning line are symmetrical with respect to a center line of the stainless steel plate, the second circle turning line and the third circle turning line are symmetrical with respect to the center line of the stainless steel plate, the first circle turning line and the fourth circle turning line are drawn on one side of the stainless steel plate, and the second circle turning line and the third circle turning line are drawn on the other side of the stainless steel plate.
5. The method as claimed in claim 1, wherein the stainless steel channel bulkhead includes a plurality of vertical posts, a base, and a frame, the base is horizontally mounted on the upper ends of the vertical posts, the frame is mounted on the base, the frame is an isosceles trapezoid frame, and the frame and the channel of the stainless steel channel plate are matched.
6. The method as claimed in claim 5, wherein the step of fabricating the stainless steel channel bulkhead jig frame comprises the steps of:
s7, popping up a center line of the jig frame and a groove-shaped center line of the stainless steel groove-shaped plate on the ground according to a jig frame drawing, and vertically installing upright posts to ensure that the heights of the upright posts are the same;
s8, mounting and fixing the base on the upper end of the upright post;
s9, mounting and fixing the frame on the base, wherein the middle part of the frame is aligned with the central line of the groove;
and S10, welding a stainless steel backing plate along the outer side of the frame.
7. The method as claimed in claim 1, wherein the compacts are placed at both ends of the stainless channel plate in S5.
8. The method for manufacturing a duplex stainless steel channel bulkhead according to claim 1, wherein the type A hanging beam comprises a steel beam shaped like a Chinese character 'wang', reinforcing plates and connecting plates, the reinforcing plates are arranged perpendicular to the steel beam shaped like a Chinese character 'wang', the connecting plates are arranged at the lower ends of the steel beam shaped like a Chinese character 'wang' corresponding to the reinforcing plates, sealing plates are respectively arranged at two ends of the steel beam shaped like a Chinese character 'wang', and the steel beam shaped like a Chinese character 'wang' is perpendicular to the sealing plates; the B-type hanging beam comprises an I-shaped steel beam, reinforcing plates and connecting plates, wherein the plurality of reinforcing plates are perpendicular to the I-shaped steel beam, and the connecting plates are installed at the positions, corresponding to the reinforcing plates, of the lower end of the I-shaped steel beam.
9. The method as claimed in claim 8, wherein a class a hanging beam is installed on one side of the middle stainless steel panels, and a class B hanging beam is installed on the other side of the middle stainless steel panels; b-type hanging beams are arranged on both sides of the left stainless steel jointed board and both sides of the right stainless steel jointed board; the A-type hanging beam and the B-type hanging beam are welded on the groove-shaped back of the stainless steel groove-shaped jointed board through connecting plates, and one end of the sealing plate is fixed in the middle of the groove shape on the outer side of the stainless steel groove-shaped jointed board.
10. The method as claimed in claim 1, wherein the stainless steel channel type bulkhead is fabricated by welding one side of the stainless steel channel type panels and then mounting a type a hanging beam or a type B hanging beam, turning the stainless steel channel type panels 180 degrees, and then mounting a type B hanging beam on the other side of the stainless steel channel type panels.
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| CN114834610B (en) * | 2022-03-31 | 2023-03-14 | 上海中远海运仓储有限公司 | Preparation method of large chemical tanker tank-type bulkhead |
| CN114960753A (en) * | 2022-05-07 | 2022-08-30 | 中铁十八局集团有限公司 | Steel pipe column machining and perpendicularity control method |
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| CN108791702B (en) * | 2018-05-31 | 2020-04-24 | 广船国际有限公司 | Method for installing groove type bulkhead scaffold |
| CN109319045B (en) * | 2018-10-10 | 2020-09-18 | 上海江南长兴造船有限责任公司 | Construction method of duplex stainless steel chemical tanker bulkhead intermediate product |
| CN110466683B (en) * | 2019-08-22 | 2021-08-20 | 中船黄埔文冲船舶有限公司 | Positioning tool for splicing groove-shaped bulkhead and splicing method of groove-shaped bulkhead |
| CN110816778B (en) * | 2019-10-21 | 2021-11-02 | 中船澄西船舶修造有限公司 | Method for building ship lap joint type groove-shaped bulkhead |
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