CN112550603B - Two-phase stainless steel longitudinal bulkhead sectional manufacturing process - Google Patents
Two-phase stainless steel longitudinal bulkhead sectional manufacturing process Download PDFInfo
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- CN112550603B CN112550603B CN202011380184.0A CN202011380184A CN112550603B CN 112550603 B CN112550603 B CN 112550603B CN 202011380184 A CN202011380184 A CN 202011380184A CN 112550603 B CN112550603 B CN 112550603B
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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
- B63B73/10—Building or assembling vessels from prefabricated hull blocks, i.e. complete hull cross-sections
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Abstract
The invention relates to a sectional manufacturing process for a duplex stainless steel longitudinal bulkhead, which comprises a first longitudinal wall section and a second longitudinal wall section, wherein the first longitudinal wall section and the second longitudinal wall section are respectively built, then the first longitudinal wall section is turned over for 180 degrees and is carried and folded on the second longitudinal wall section, and then the first longitudinal wall section and the second longitudinal wall section are integrally turned over for 180 degrees. According to the invention, the marking and detecting work of the segmented liquid cargo tank surface is separately constructed according to the first longitudinal wall segment and the second longitudinal wall segment, so that the number of times of turning over the segments is reduced, and the segmented construction efficiency is improved.
Description
Technical Field
The invention relates to the field of ship construction, in particular to a double-phase stainless steel longitudinal bulkhead sectional manufacturing process.
Background
In the process of ship section construction, two side walls of a chemical tanker longitudinal bulkhead section are both double-phase stainless steel bulkheads, and during construction, a single side is usually taken as a base surface to be made into a section, and after the section is formed by turning over and folding, the section is turned over again and the tire is removed. When the platform part is installed in the segment stage, a large amount of manpower and material resources are consumed for precision adjustment in the segment stage, the segment assembling time is long, secondary adjustment is needed for positioning after folding, the segment building period is prolonged, and the building efficiency is influenced.
The reasons for this are that the requirements are not high in the stage of component manufacturing, the manufacturing quality and precision are uneven, and the components are often required to be adjusted and even cut off for positioning for many times when being integrally mounted in the stage of segmentation.
Disclosure of Invention
In order to reduce the number of times of turning over the sections and improve the construction efficiency and the construction quality, the invention provides a manufacturing process of the double-phase stainless steel longitudinal bulkhead sections, and the technical purpose of the invention is realized by the following technical scheme:
a two-phase stainless steel longitudinal bulkhead sectional manufacturing process comprises a first longitudinal wall section and a second longitudinal wall section, wherein the first longitudinal wall section and the second longitudinal wall section are respectively built, then the first longitudinal wall section is turned over for 180 degrees and is carried and folded on the second longitudinal wall section, and then the first longitudinal wall section and the second longitudinal wall section are integrally turned over for 180 degrees.
Further, the first longitudinal wall segment and the second longitudinal wall segment are manufactured to comprise groove-shaped plates, platform plate components and segment jointed plates, the segment jointed plates are built on the jig frame in a jointed mode, and the groove-shaped plates and the platform plate components are installed on the segment jointed plates.
Further, a groove type part jig frame is manufactured before the groove type plate is installed, and the groove type plate is assembled on the groove type part jig frame according to a drawing and is reinforced and fixed.
Further, when the platform plate component is manufactured, the method comprises the following steps:
s1, manufacturing a steel platform, and paving a steel plate on the steel platform to be used as a base surface;
s2, vertically placing a platform plate on the base surface, and respectively marking rib plate mounting lines on the base surface and the platform plate;
s3, installing a ribbed plate, and installing the ribbed plate at one end perpendicular to the platform plate according to a ribbed plate installation line;
s4, installing section steel at the other end of the ribbed plate to control the distance between the ribbed plates;
and S5, welding and fixing the rib plates and the platform plates.
Further, the first vertical wall section is constructed first, and the second vertical wall section is constructed after the construction is completed, wherein the construction of the first vertical wall section and the second vertical wall section comprises the following steps:
s6, marking longitudinal bone mounting lines, groove type plate mounting lines and groove type plate mounting inspection lines on the segment jointed boards after the segment jointed boards are built on the plane jig frame;
s7, installing the longitudinal ribs firstly, and then installing the platform plate parts step by step, wherein the installation sequence of the platform plate parts is that the platform plate parts from the upper position to the lower position are installed;
and S8, testing the mounting accuracy, and welding and fixing after the mounting accuracy is qualified.
Further, after the first longitudinal wall segment is turned over for 180 degrees and is carried and folded on the second longitudinal wall segment, a plurality of weights are uniformly arranged on the first longitudinal wall segment to reduce welding deformation; then marking out an installation line and a check line of the groove-shaped transverse bulkhead on the liquid cargo compartment surface of the first longitudinal wall segment; and turning the first longitudinal wall segment and the second longitudinal wall segment by 180 degrees integrally, then downward mounting the first longitudinal wall segment on the portal, and carrying out groove type scribing and flatness inspection on the liquid cargo hold surface of the second longitudinal wall segment.
Furthermore, the longitudinal ribs are made of flat bulb steel, welding is conducted from the middle to the two sides during welding of the longitudinal ribs, and adjacent longitudinal ribs are welded at intervals.
Furthermore, when the longitudinal frame is welded, one side close to the ball back is welded, and then one side of the ball head is welded.
Further, the flatness of the flat plate is controlled within 2mm in the flat plate part manufacturing stage.
Compared with the prior art, the invention has the beneficial effects that:
1. parts such as the longitudinal frame, the groove-shaped plate, the platform plate and the like are dispersedly installed, so that the installation and the positioning during the folding are facilitated;
2. the marking and detecting work of the segmented liquid cargo hold surface is carried out according to the first longitudinal wall segment and the second longitudinal wall segment separately, so that the number of times of segmented turning is reduced;
3. the working stage is transferred, the precision control is started at the part stage, and the multi-line development work is carried out, so that the sectional construction efficiency is improved, and the tire position period is shortened;
4. the precision control runs through the whole construction process, and the control is carried out layer by layer, so that unnecessary adjustment work is avoided.
Drawings
FIG. 1 is a schematic view of a groove-type part jig structure.
Figure 2 is a schematic of the platform plate component build.
Fig. 3 is a front view of a first longitudinal wall segment in accordance with the present invention.
FIG. 4 is a three-dimensional view of a first vertical wall segment in accordance with the present invention.
In the figure, 1, a groove plate; 2. a groove-shaped part jig frame; 3. a base surface; 4. a steel platform; 5. a platform plate; 6. a rib plate; 7. channel steel; 8. segment splicing plates; 9. the longitudinal bone.
Detailed Description
The technical solution of the present invention is further described below with reference to specific embodiments:
a duplex stainless steel longitudinal bulkhead subsection manufacturing process is disclosed, as shown in figures 1-4, the duplex stainless steel longitudinal bulkhead subsection is divided into a first longitudinal wall section and a second longitudinal wall section to be built respectively, the second longitudinal wall section is built after the first longitudinal wall section is built, the building methods of the first longitudinal wall section and the second longitudinal wall section are the same, the built first longitudinal wall section is turned over for 180 degrees and is folded on the second longitudinal wall section, then the first longitudinal wall section and the second longitudinal wall section are turned over for 180 degrees integrally, and after the first longitudinal wall section is turned over for 180 degrees and is folded on the second longitudinal wall section, a plurality of pressing irons are uniformly arranged on the first longitudinal wall section to reduce welding deformation; then marking out an installation line and a check line of the groove-shaped transverse bulkhead on the liquid cargo compartment surface of the first longitudinal wall segment; and turning the first longitudinal wall segment and the second longitudinal wall segment by 180 degrees integrally, then downward mounting the first longitudinal wall segment on the portal, and scribing the mounting line of the groove-shaped diaphragm of the liquid cargo tank surface of the second longitudinal wall segment and testing the flatness.
Specifically, first vertical wall segment and second vertical wall segment include channel plate 1, landing slab part and fragment makeup 8, and channel plate 1, landing slab part and fragment makeup 8 are built respectively, include:
s6, after welding the segment jointed boards 8 built by jointed boards on the plane jig, marking a longitudinal bone mounting line, a groove-shaped board mounting line and a groove-shaped board mounting inspection line on the segment jointed boards 8, and knocking out a sample punch;
s7, firstly, installing the longitudinal ribs 9, wherein the longitudinal ribs 9 are made of flat bulb steel, the longitudinal ribs 9 are welded from the middle to two sides, the adjacent longitudinal ribs 9 are welded at intervals, and the longitudinal ribs 9 are welded at the side close to the back of the bulb and then at the side of the bulb; after the longitudinal frame 9 is installed, the platform plate parts are installed step by step, and the platform plate parts are installed from the platform plate part at the upper part to the platform plate part at the lower part in the installation sequence;
and S8, testing the mounting accuracy, and welding and fixing after the mounting accuracy is qualified.
Specifically, 4 circle turning lines are marked on a stainless steel plate before a groove type plate 1 is machined, a circle turning line is used as a central line to press a circle on the stainless steel plate, whether the circle turning line meets requirements is checked through a sample plate, a groove type part jig frame 2 is manufactured before the groove type plate 1 is installed, the machined groove type plate is assembled on the groove type part jig frame 2 according to a drawing, the groove type plate is reinforced and fixed through angle iron, the size deformation of the groove type plate 1 is controlled, the circle turning position is reinforced through the sample plate, and the sample plate is manufactured according to the same proportion of the circle turning.
Specifically, when the platform plate component is manufactured, the method comprises the following steps:
s1, manufacturing a steel platform, wherein the steel platform is formed by welding I-shaped steel 4, the levelness of the I-shaped steel 4 is controlled within 2mm, and a steel plate is laid on the steel platform 4 to serve as a base surface 3;
s2, vertically placing a platform board 5 on the base surface 3, controlling the flatness of the platform board 5 within 2mm in the platform board part manufacturing stage, and respectively scribing rib plate mounting lines on the base surface 3 and the platform board 5;
s3, installing a ribbed plate 6, and installing one end of the ribbed plate 6 to be vertical to the platform plate 5 according to a ribbed plate installation line;
s4, installing channel steel 7 at the other end of the rib plate 6 to control the distance between the rib plates 6, and dismantling the channel steel 7 before the platform plate 5 is installed on the segment splicing plate 8;
and S5, welding and fixing the rib plate 6 and the platform plate 5.
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 (5)
1. The manufacturing process of the duplex stainless steel longitudinal bulkhead in sections is characterized by comprising a first longitudinal wall section and a second longitudinal wall section, wherein the first longitudinal wall section and the second longitudinal wall section comprise a groove-shaped plate, a platform plate component and a section jointed plate, the section jointed plate is built on a jig frame in a jointed mode, and the groove-shaped plate and the platform plate component are installed on the section jointed plate; manufacturing a groove-shaped part jig frame before the groove-shaped plate is installed, assembling the groove-shaped plate on the groove-shaped part jig frame according to a drawing and reinforcing and fixing; the first longitudinal wall segment and the second longitudinal wall segment are respectively built, then the first longitudinal wall segment is turned over for 180 degrees and is carried and folded on the second longitudinal wall segment, and then the first longitudinal wall segment and the second longitudinal wall segment are integrally turned over for 180 degrees;
when the platform plate component is manufactured, the method comprises the following steps:
s1, manufacturing a steel platform, and paving a steel plate on the steel platform to be used as a base surface;
s2, vertically placing a platform plate on the base surface, and respectively marking rib plate mounting lines on the base surface and the platform plate;
s3, installing a ribbed plate, and installing the ribbed plate at one end perpendicular to the platform plate according to a ribbed plate installation line;
s4, installing section steel at the other end of the ribbed plate to control the distance between the ribbed plates;
s5, welding and fixing the rib plates and the flat plate;
the first longitudinal wall segment is built first, and the second longitudinal wall segment is built after the first longitudinal wall segment is built, wherein the first longitudinal wall segment and the second longitudinal wall segment are built by the following steps:
s6, marking longitudinal bone mounting lines, groove type plate mounting lines and groove type plate mounting inspection lines on the segment jointed boards after the segment jointed boards are built on the plane jig frame;
s7, installing the longitudinal ribs firstly, and then installing the platform plate parts step by step, wherein the installation sequence of the platform plate parts is that the platform plate parts from the upper position to the lower position are installed;
and S8, testing the mounting accuracy, and welding and fixing after the mounting accuracy is qualified.
2. The process of claim 1, wherein after the first longitudinal wall segment is turned over by 180 ° and folded on the second longitudinal wall segment, a plurality of weights are uniformly arranged on the first longitudinal wall segment to reduce welding deformation; then marking out an installation line and a check line of the groove-shaped transverse bulkhead on the liquid cargo compartment surface of the first longitudinal wall segment; and turning the first longitudinal wall segment and the second longitudinal wall segment by 180 degrees integrally, then downward mounting the first longitudinal wall segment on the portal, and scribing the mounting line of the groove-shaped diaphragm of the liquid cargo tank surface of the second longitudinal wall segment and testing the flatness.
3. The process of claim 1, wherein the stringer is formed from bulb-shaped steel, and wherein the stringer is welded from the middle to the two sides and adjacent stringers are welded at spaced intervals.
4. The process of claim 3, wherein the longitudinal frame is welded to the side near the ball back and then to the ball head.
5. The process of claim 1, wherein the flatness of the platform plate is controlled to within 2mm during the platform plate component fabrication stage.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011380184.0A CN112550603B (en) | 2020-12-01 | 2020-12-01 | Two-phase stainless steel longitudinal bulkhead sectional manufacturing process |
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| CN202011380184.0A CN112550603B (en) | 2020-12-01 | 2020-12-01 | Two-phase stainless steel longitudinal bulkhead sectional manufacturing process |
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| CN112550603A CN112550603A (en) | 2021-03-26 |
| CN112550603B true CN112550603B (en) | 2022-02-22 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1986006341A1 (en) * | 1985-04-26 | 1986-11-06 | Marine Design Rolf Carlsson Ab | A room element, particularly a cabin or a berth in a ship |
| CN101817392A (en) * | 2010-03-18 | 2010-09-01 | 上海江南长兴重工有限责任公司 | Thwartship bulkhead subsection guide rail frame preassembling process |
| CN103640667A (en) * | 2013-12-05 | 2014-03-19 | 江苏新时代造船有限公司 | Process for mounting container vessel transverse bulkhead guide rail bracket in section |
| CN108177730A (en) * | 2017-12-25 | 2018-06-19 | 沪东中华造船(集团)有限公司 | A kind of integrated method of construction of topside segmentation |
| CN109319045A (en) * | 2018-10-10 | 2019-02-12 | 上海江南长兴造船有限责任公司 | A kind of method of construction of two phase stainless steel chemical tanker compartment intermediate products |
| CN110182301A (en) * | 2019-04-22 | 2019-08-30 | 沪东中华造船(集团)有限公司 | A kind of chemical tanker two phase stainless steel sectional construction method |
-
2020
- 2020-12-01 CN CN202011380184.0A patent/CN112550603B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1986006341A1 (en) * | 1985-04-26 | 1986-11-06 | Marine Design Rolf Carlsson Ab | A room element, particularly a cabin or a berth in a ship |
| CN101817392A (en) * | 2010-03-18 | 2010-09-01 | 上海江南长兴重工有限责任公司 | Thwartship bulkhead subsection guide rail frame preassembling process |
| CN103640667A (en) * | 2013-12-05 | 2014-03-19 | 江苏新时代造船有限公司 | Process for mounting container vessel transverse bulkhead guide rail bracket in section |
| CN108177730A (en) * | 2017-12-25 | 2018-06-19 | 沪东中华造船(集团)有限公司 | A kind of integrated method of construction of topside segmentation |
| CN109319045A (en) * | 2018-10-10 | 2019-02-12 | 上海江南长兴造船有限责任公司 | A kind of method of construction of two phase stainless steel chemical tanker compartment intermediate products |
| CN110182301A (en) * | 2019-04-22 | 2019-08-30 | 沪东中华造船(集团)有限公司 | A kind of chemical tanker two phase stainless steel sectional construction method |
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