Forming method of composite cabin section

Abstract

The invention discloses a forming method of a composite cabin section, which comprises the following steps: 1, preparing raw materials; 2, preparing a mold; 3, forming a deck; 4, forming the outer plate; 5, forming a first transverse bulkhead; 6, forming a second transverse bulkhead; 7, two ballast tank platforms, a plurality of ship bottom flat plates and two half bulkheads are prepared; 8, the first transverse bulkhead and the second transverse bulkhead are installed in the outer plate, large ballast tanks are formed at the ends, opposite to the front bulkhead and the rear bulkhead of the outer plate, of the first transverse bulkhead and the second transverse bulkhead respectively, ship bottom flat plates are installed on the upper sides of the ship bottoms in the large ballast tanks respectively, ballast tank platforms are installed on the upper sides of the ship bottom flat plates, and after fixing, the ballast tanks are installed on the upper sides of the ship bottom flat plates. The half bulkheads are installed on the upper side of the ballast tank platform, the large ballast tank is divided into two small ballast tanks, and finally the deck is installed at the upper end of the outer plate; the cabin outer plate prepared through the method is lighter in weight, and preparation of the whole cabin section can be completed without large equipment.

Description

Technical Field

[0001] The invention relates to the technical field of hull molding, in particular to a molding method of a composite material cabin section. Background Art

[0002] Composite hulls are widely used in military boats. Most of the existing military boat forming methods are autoclave forming, hand lay-up forming and vacuum introduction forming. It is well known that the cost of autoclave forming materials is high. In addition, the composite cabin section is a large structural part with a length of about 11m, a width of about 10m and a height of about 5m. Large autoclave equipment is required for autoclave forming. Large autoclave equipment has high cost and long construction period. As thick-walled parts, they need to be cured in sections, and large parts are difficult to move in and out of the autoclave. Hand lay-up forming has low production efficiency, long cycle, poor working environment, difficult to control product quality during the forming process, and low strength and dimensional accuracy. In the previous hull vacuum introduction forming, wooden molds were used to hand lay up the glass fiber reinforced plastic molds and then the products were vacuum introduced. The glass fiber reinforced plastic molds are complicated to form, have low sealing, uncontrollable deformation and low surface accuracy. It is understood that large glass fiber reinforced plastic molds do not have much price advantage compared to steel molds. The use of steel molds in composite cabin section forming can well ensure the surface accuracy and outer surface quality of the hull. Therefore, according to the above description, when facing a large-scale composite hull, it is very meaningful to study a vacuum induction molding method with simple molding process, high efficiency and high surface quality. Summary of the invention

[0003] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0004] In view of the above and / or existing problems in the existing hull preparation, the present invention is proposed.

[0005] Therefore, the purpose of the present invention is to provide a molding method for a composite material cabin section. The molding process of the present invention is simple, the preparation cost is reduced, and the hull can be processed without the aid of large-scale equipment for hot pressing molding. This solves the problems of high cost of large composite material hulls in the prior art, complicated and difficult operation methods, poor surface quality, and difficulty in accurately determining the external dimensions.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a molding method of a composite material cabin section, comprising the following steps: 1. Raw material preparation; 2. Mould preparation; 3. Deck moulding; 4. Shell moulding; 5. First transverse bulkhead moulding; 6. Forming of the second transverse bulkhead; 7. Prepare two ballast tank platforms, several bottom flat plates and two half bulkheads; 8. Install the first transverse bulkhead and the second transverse bulkhead into the outer plate respectively, and form large ballast tanks at one end of the first transverse bulkhead and the second transverse bulkhead respectively opposite to the front and rear bulkheads of the outer plate, install bottom flat plates on the upper side of the bottom in the large ballast tank, install the ballast tank platform on the upper side of the bottom flat plate, and after fixing, install the half bulkhead on the upper side of the ballast tank platform to divide the large ballast tank into two small ballast tanks, and finally install the deck on the upper side of the outer plate.

[0007] As a preferred scheme of the forming method of the composite material cabin section in the present invention, wherein: step 3 specifically includes the following steps, 301, laying the bottom plate on the deck forming positive mold according to the laying design, after the laying is completed, arrange the vacuum introduction system, vacuum inject glue after the completion, and cure at room temperature after the injection of glue; 302, install a number of deck positioning longitudinal bone foams on the cured bottom plate, after the deck positioning longitudinal bone foams are fixed, the entire surface of the bottom plate and the deck positioning longitudinal bone foam are laid according to the laying design, after the laying is completed, arrange the vacuum introduction system, vacuum inject glue after the completion, and cure at room temperature after the injection of glue; 303, install the longitudinal girders foams according to the designed positions, install a number of middle strong cross beam foams spaced in the front and rear directions in the center position of the bottom plate, and a number of middle strong cross beam foams are installed on the left and right sides Install the middle longitudinal girder foam on the upper side of the bottom plate on the side, install the side longitudinal girder foam on the bottom plate to the left of the middle longitudinal girder foam on the left side and on the right of the middle longitudinal girder foam on the right side, and install the transverse foam on the left side of the middle longitudinal girder foam, on the right side of the middle longitudinal girder foam on the right side and on the bottom plates on the left and right sides of the side longitudinal girder foam; 304. Complete the paving on the middle longitudinal girder foam, the middle strong cross beam foam and the side longitudinal girder foam according to the ply design, arrange the vacuum introduction system, and perform vacuum glue injection after completion, and cure at room temperature after the glue injection is completed; 305. Install the deck longitudinal foam on the bottom plate between two adjacent transverse foams, pave on the deck longitudinal foam according to the ply design, arrange the vacuum introduction system, and perform vacuum glue injection after completion, and cure at room temperature after the glue injection is completed; 306. Demoulding.

[0008] As a preferred embodiment of the forming method of the composite material cabin section in the present invention, step 4 specifically includes the following steps: 401, laying the outer plate skin in the female mold according to the laying design, arranging the vacuum introduction system after the laying is completed, vacuum injection after the completion, and curing at room temperature after the injection; 402, installing a number of bottom positioning longitudinal foams on the bottom and side of the cured outer plate skin respectively, laying the side and bottom of the ship on the bottom positioning longitudinal foam according to the laying design, the fabric interface needs to be overlapped during the laying process and the overlap position needs to be staggered, laying is completed, arranging the vacuum introduction system, vacuum injection after the completion, and curing at room temperature after the injection; 403, installing vertically arranged longitudinal foams on the bulkhead of the outer plate skin according to the designed position The first longitudinal foam is placed, and according to the laying design, each first longitudinal foam is separately laid out, and a vacuum introduction system is arranged. After completion, vacuum glue injection is performed, and the glue is cured at room temperature; 404. The second longitudinal foam, the third longitudinal foam, and the horizontal transverse foam, which are vertically arranged and thicker than the first longitudinal foam, are installed on the bulkhead between the longitudinal foams at the set position. The thickness of the second longitudinal foam, the third longitudinal foam, and the transverse foam are the same, and the width of the second longitudinal foam is greater than that of the third longitudinal foam. The transverse foam and various longitudinal foams are crossed. According to the laying design, the second longitudinal foam, the third longitudinal foam, and the transverse foam are laid as a whole. When laying, the transverse and longitudinal fibers need to be laid alternately and continuously with dry cloth. When laying, 405. Install a number of bottom longitudinal girder foams at set positions on the bottom of the ship, and complete separate paving on each bottom longitudinal girder foam according to the laying design. After the paving is completed, arrange the vacuum introduction system, and perform vacuum glue injection. After the paving is completed, cure at room temperature; 406. Install an intermediate hardwood embedded part on the bottom between two bottom longitudinal girder foams, and install a number of intermediate crossbeam foams spaced apart in the front and rear directions on the front and rear sides of the intermediate hardwood embedded part. Two first side keel foams stacked together in the height direction and spaced apart in the left and right directions are installed on the bottom on the front and rear sides of the intermediate hardwood embedded part. The intermediate crossbeam foam The foam is arranged between two first side keel foams spaced apart in the left-right direction, and side hardwood embedded parts are respectively installed on the bottom of the ship at one end away from each other in the left-right direction of two bottom longitudinal girder foams, and the front and rear sides of the side hardwood embedded parts are respectively connected to two second side keel foams connected to the bottom and stacked together in the height direction, and metal embedded parts are connected at the set positions of the first side keel foam and the second side keel foam; 407. According to the ply design, complete separate whole-surface paving on the connected middle crossbeam foam, the first side keel foam and the middle hardwood embedded parts, and the connected side hardwood embedded parts and the second side keel foam, arrange the vacuum introduction system after the plying is completed, and perform vacuum glue injection after the completion, and cure at room temperature after the glue injection is completed;408. Install several side strong transverse beam foams spaced in the front-to-back direction on the bottom of the ship on the side away from the two side ribs. The side strong transverse beam foam is installed on the side at one end away from the corresponding side rib in the left-right direction. Lay on each side strong transverse beam foam according to the laying design. After the laying is completed, arrange the vacuum introduction system. After the completion, vacuum glue injection is performed. After the glue injection is completed, it is cured at room temperature; 409. Install the side longitudinal girder foam on the side between two adjacent side strong transverse beams according to the designed position. According to the laying design, hand paste molding is performed on each side longitudinal girder foam; 410. Demolding; Among them, when installing each longitudinal foam, use structural glue to bond and fix it in sections from bottom to top. When installing the transverse foam, first use the preset lifting wooden block to support the transverse foam and then use structural glue to bond and fix it. ;

[0009] As a preferred embodiment of the molding method of the composite material cabin section in the present invention, the molding methods of step 5 and step 6 are the same, wherein step 5 specifically includes the following steps: 501, laying the transverse bulkhead skin on the first transverse bulkhead forming positive mold (whose upper surface is a plane) according to the laying design, overlapping the dry cloth interface by 30mm during the laying process and the overlapping interface position needs to be staggered, after the laying is completed, the vacuum introduction system is arranged, vacuum glue is injected after the completion, and room temperature curing is performed after the glue injection is completed; 502, a plurality of parallel transverse bulkhead longitudinal bone foams are installed on the upper side of the transverse bulkhead skin according to the set position, and each transverse bulkhead longitudinal bone foam is separately laid according to the laying design, after the laying is completed, the vacuum introduction system is arranged, vacuum glue is injected after the completion, and room temperature curing is performed after the glue injection is completed; 503, on the transverse bulkhead skin High buttress foam is installed on the upper side of the skin, the high buttress foam includes several longitudinal buttress foams, transverse buttress foams are fixed on several longitudinal buttress foams, the transverse buttress foams are perpendicular to the longitudinal buttress foams, the longitudinal buttress foams are arranged between the corresponding two adjacent transverse bulkhead longitudinal foams, the transverse buttress foams and the transverse bulkhead longitudinal foams intersect, and the high buttress foam is separately laid on the transverse bulkhead skin according to the laying design. During the laying process, the dry cloth interface is overlapped by 30mm and the overlap position needs to be staggered. After laying, the vacuum introduction system is arranged, and vacuum glue is injected after completion. After the glue injection is completed, it is cured at room temperature; 504, demoulding; 505, firstly, the outer contour is cut and polished according to the skin cutting line. According to the structural characteristics of the first transverse bulkhead, in order to be able to assemble with the hull, the interference on the left and right sides are divided respectively.

[0010] As a preferred embodiment of the forming method of the composite material cabin section in the present invention, the paving step of step 301 is to first lay the first layer of felt on the upper side of the deck forming positive mold, and first perform three cycles of full-surface paving on the first layer of felt. The order of the full-surface paving in each cycle is to use a layer of [45°, -45°] biaxial cloth, a layer of [0°, 90°] biaxial cloth, a layer of 0° unidirectional cloth, a layer of [90°, 0°] biaxial cloth, a layer of [-45°, 45°] biaxial cloth and a layer of [0°, 90°] biaxial cloth, and then lay the second layer of felt, and perform two cycles of full-surface paving on the second layer of felt. The order of the paving in each cycle is one layer. [45°, -45°] biaxial cloth, a layer of [0°, 90°] biaxial cloth, a layer of 0° unidirectional cloth, a layer of [90°, 0°] biaxial cloth and a layer of [-45°, 45°] biaxial cloth, the thickness of the above paving is 12mm; the paving step of step 302 is to perform 3 cycles of full-surface paving on the basis of step 301, and the paving order of each cycle is one layer of [45°, -45°] biaxial cloth, a layer of [0°, 90°] biaxial cloth, a layer of 0° unidirectional cloth, a layer of [90°, 0°] biaxial cloth and a layer of [-45°, 45°] biaxial cloth, and the paving thickness is 7mm; step 30 4, the layers are laid on the connected middle strong transverse beam foam, middle longitudinal girder foam and side longitudinal girder foam respectively, and the laying method is the same, according to the mutual interlacing and overlapping laying, and the overlapping interface position needs to be staggered overlap; the laying step of step 305 is to lay the entire surface on the longitudinal foam of the deck, first lay a layer of [45°, -45°] biaxial cloth, and then perform 2 cycles of full-surface laying on this basis, and the laying order of each cycle is one layer of 0° unidirectional cloth, one layer of [90°, 0°] biaxial cloth, one layer of [-45°, 45°] biaxial cloth, one layer of [45°, -45°] biaxial cloth and one layer of [0°, 90°] biaxial cloth, Then, a layer of biaxial cloth [90°, 0°], a layer of biaxial cloth [-45°, 45°] and a layer of felt are laid in sequence, and the entire surface is laid on the basis of the felt. The laying order is: a layer of biaxial cloth [45°, -45°], a layer of biaxial cloth [0°, 90°], a layer of unidirectional cloth [0°], a layer of biaxial cloth [90°, 0°], a layer of biaxial cloth [-45°, 45°], a layer of biaxial cloth [45°, -45°], a layer of biaxial cloth [0°, 90°], a layer of unidirectional cloth [0°] and a layer of biaxial cloth [-45°, 45°], and finally a layer of felt is laid. The total laying thickness is 11 mm.

[0011] As a preferred embodiment of the forming method of the composite material cabin section in the present invention, the paving step of step 401 is as follows: the area where the upper parts of the inner walls at the left and right ends of the female mold are located is zone I, the central concave area at the bottom of the female mold is zone III, the area where the inner walls of the female mold between zones I and III are located is zone II, and the area where the inner walls at the front and rear ends of the female mold are located corresponds to the cabin wall of the outer plate. First, two cycles of paving are performed in the female mold. The paving process of each cycle of paving is to first lay the first layer of felt as a whole, and then perform the first full-surface paving on the first layer of felt. The order of the first full-surface paving is to use a layer of [45°, -45°] biaxial cloth, a layer of [0°, 90°] biaxial cloth, a layer of 0° unidirectional cloth, a layer of [90°, 0°] biaxial cloth and a layer of [-45°, 45°] biaxial cloth. The first single paving is performed at the position of zone III. The order of the first single paving is to use a layer of [45°, -45°] biaxial cloth, a layer of [0°, 90°] biaxial cloth, a layer of 0° unidirectional cloth, a layer of [90°, 0°] biaxial cloth, a layer of [-45°, 45°] biaxial cloth and a layer of felt; on the basis of 2 cycles of laying, the first single laying is carried out at the bulkhead, zone II and zone III. The laying order of the first single laying is one layer of [45°, -45°] biaxial cloth, one layer of [0°, 90°] biaxial cloth, a layer of 0° unidirectional cloth, a layer of [90°, 0°] biaxial cloth and one layer of [-45°, 45°] biaxial cloth. Continue to lay the layers at the bulkhead and zone III. The laying order is to use one layer of biaxial fabric [45°, -45°], one layer of biaxial fabric [0°, 90°], one layer of unidirectional fabric 0°, one layer of biaxial fabric [90°, 0°] and one layer of biaxial fabric [-45°, 45°], and then carry out the second whole-surface laying. On the basis of the second whole-surface laying, lay a layer of felt. Carry out the second single laying at the position of the bulkhead, zone II and zone III. The laying order of the second single laying is the same as that of the first single laying. Carry out the third whole-surface laying. The order of each whole-surface laying is the same. On the basis of the third whole-surface laying, carry out the fourth The fourth full-surface laying includes two cycles of laying, and the laying order of each cycle of laying is one layer of biaxial cloth [45°, -45°], one layer of biaxial cloth [0°, 90°], one layer of unidirectional cloth [0°], one layer of biaxial cloth [90°, 0°], one layer of biaxial cloth [-45°, 45°], one layer of biaxial cloth [45°, -45°], one layer of biaxial cloth [0°, 90°], one layer of unidirectional cloth [0°], one layer of biaxial cloth [90°, 0°] and one layer of biaxial cloth [-45°, 45°], and a layer of felt is laid between the two cycles of laying; laying is interspersed at four positions and the laying is completed at the same time;After the layers are laid, the skin thickness of zone III is 28mm, the skin thickness of zone II is 18mm, the skin thickness of zone I is 13mm, and the thickness of the bottom plate at the bulkhead is 22mm. ;

[0012] As a preferred embodiment of the forming method of the composite material cabin section in the present invention, the paving step of step 402 is to perform full-surface paving on the basis of step 401, first perform 2 cycles of full-surface paving, and the order of full-surface paving in each cycle is one layer of biaxial cloth [45°, -45°], one layer of biaxial cloth [90°, 0°], one layer of unidirectional cloth 0°, one layer of biaxial cloth [90°, 0°] and one layer of biaxial cloth [-45°, 45°]; after 2 cycles of full-surface paving, a layer of felt is paved, and 2 cycles of full-surface paving are performed on the felt, and finally another layer of felt is paved; the skin thickness after paving is 9 mm.

[0013] As a preferred embodiment of the forming method of the composite cabin section in the present invention, the laying step of step 403 is to separately lay layers on each first longitudinal foam of the bulkhead bottom plate, and the laying sequence is to lay layers on the entire surface for 2 cycles, and the laying sequence of the entire surface in each cycle is to lay layers of biaxial fabric of [45°, -45°], biaxial fabric of [90°, 0°], unidirectional fabric of 0°, biaxial fabric of [90°, 0°] and unidirectional fabric of [- 45°, 45°] biaxial cloth; after 2 cycles of full-surface laying, a layer of felt is laid, and 2 cycles of full-surface laying are performed on the felt, and finally another layer of felt is laid; the skin thickness after the laying is 9mm, and the flange is 100mm; the laying steps of step 404 are as follows: in step 6, laying is performed on various types of foams, and the horizontal and vertical fibers are alternately and continuously laid cross-wise on the dry cloth during the laying, specifically, first laying a layer of [45°, -45°] biaxial cloth, and then 2 cycles of full-surface laying are performed on this basis. The whole surface is laid in a cycle. The laying order of each cycle is a layer of 0° unidirectional cloth, a layer of [90°, 0°] biaxial cloth, a layer of [-45°, 45°] biaxial cloth, a layer of [45°, -45°] biaxial cloth and a layer of [0°, 90°] biaxial cloth, and then a layer of [90°, 0°] biaxial cloth, a layer of [-45°, 45°] biaxial cloth and a layer of felt. On the basis of the felt, the whole surface is laid. The laying order is The layers are, in order, a layer of biaxial cloth at [45°, -45°], a layer of biaxial cloth at [0°, 90°], a layer of unidirectional cloth at 0°, a layer of biaxial cloth at [90°, 0°], a layer of biaxial cloth at [-45°, 45°], a layer of biaxial cloth at [45°, -45°], a layer of biaxial cloth at [0°, 90°], a layer of unidirectional cloth at 0° and a layer of biaxial cloth at [-45°, 45°], and finally a layer of felt is laid; the layer thickness is 11mm.

[0014] As a preferred embodiment of the forming method of the composite material cabin section in the present invention, the paving step of step 404 is to perform separate whole-surface paving on each of the longitudinal girder foams of the bottom of the ship, specifically, first perform two cycles of separate whole-surface paving, and the order of the separate whole-surface paving in each cycle is one layer of biaxial cloth [45°, -45°], one layer of biaxial cloth [0°, 90°], one layer of unidirectional cloth 0°, one layer of biaxial cloth [90°, 0°] and one layer of biaxial cloth [-45°, 45°]; after the two cycles of separate whole-surface paving are completed, the first layer of felt is paved, and two cycles of whole-surface paving are performed on the first layer of felt, and the second layer of felt is paved, and two cycles of whole-surface paving are performed on the second layer of felt, and finally another layer of felt is paved, and the total paving thickness is 15 mm, and the flange is 200 mm.

[0015] As a preferred embodiment of the forming method of the composite material cabin section in the present invention, the step 405 of the lamination step is to perform separate whole-surface lamination on each of the longitudinal girder foams of the bottom of the ship, and first perform two cycles of separate whole-surface lamination, and the order of the separate whole-surface lamination in each cycle is one layer of biaxial cloth [45°, -45°], one layer of biaxial cloth [0°, 90°], one layer of unidirectional cloth 0°, one layer of biaxial cloth [90°, 0°] and one layer of biaxial cloth [-45°, 45°]; after the two cycles of separate whole-surface lamination are completed, the first layer of felt is laid, and two cycles of whole-surface lamination are performed on the first layer of felt, and the second layer of felt is laid, and two cycles of whole-surface lamination are performed on the second layer of felt, and finally another layer of felt is laid, and the total thickness of the laying is 15 mm, and the flange is 200 mm.

[0016] Compared with the prior art, the present invention has the following technical effects: the present invention uses glass fiber cloth to prepare the deck, outer plate, transverse bulkhead and other components respectively. When processing the deck and transverse bulkhead, they are respectively laid on a flat mold, and then combined with vacuum introduction and room temperature curing process, the required deck and transverse bulkhead are processed and formed; when processing the outer plate, vacuum introduction molding is directly carried out in the female mold. For the bottom and the side of the cabin, skins of different thicknesses are prepared first by dividing the area. After the preparation is completed, the positioning longitudinal bones are respectively installed on the skins of the bottom and the side of the cabin, and the whole surface is laid, so as to achieve For the remaining 9mm of skin preparation, the corresponding longitudinal and transverse foams are fixedly installed on the skin of the bulkhead, bottom and cabin side respectively, and on this basis, the laying, vacuum introduction bags are arranged, vacuuming and curing are carried out in sequence; the preparation of the outer plate skin is completed by marking the area for positioning the laying and forming, and then the installation and laying of various types of foams are completed on the outer plate skin in sequence according to the steps. There is no need to rely on large equipment for forming, the operation is simple, and the forming cost is reduced. While meeting the strength requirements, the dimensional accuracy and appearance requirements are also guaranteed, and the forming operation of the cabin outer plate is completed with high quality and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them: Figure 1 The figure is a three-dimensional structural diagram of a cabin section prepared using the present invention.

[0018] Figure 2 This is a cross-sectional view of the transverse bulkhead assembled into the shell plating.

[0019] Figure 3 A cross-section of the upper side of a ship's bottom with the slab fitted into the large ballast tanks.

[0020] Figure 4 This is a cross-sectional view of the ballast tank platform assembled to the upper side of the ship's bottom flat plate.

[0021] Figure 5 This is a cross-sectional view of the half bulkhead assembled to the upper side of the ballast tank platform.

[0022] Figure 6 A cross-sectional view showing several upper I-beams installed on the upper sides of the middle longitudinal girders and side longitudinal girders.

[0023] Figure 7 This is a cross-sectional view of a number of lower I-beams installed on the upper sides of the first side keel and the second side keel.

[0024] Figure 8 It is a cross-sectional view of several steel pipe struts fixed on the upper side of the corresponding lower I-beams.

[0025] Fig. 9 Schematic diagram of vacuum introduction.

[0026] Fig.10 It is a three-dimensional structural diagram of the flat plate mold in the present invention.

[0027] Fig.11 This is a three-dimensional structural diagram after the deck positioning longitudinal bone foam is installed on the upper side of the 2 / 3 skin.

[0028] Fig.12 This is a three-dimensional structural diagram of the deck before the longitudinal foam of the deck is installed.

[0029] Fig.13 The three-dimensional structural diagram of a deck processed by the present invention (a hatch door for installing a small hatch door and a hatch cover opening for installing a hatch cover are opened later).

[0030] Fig.14 for Fig.13 A partial enlarged view of point A in the middle.

[0031] Fig.15 for Fig.13 A partial enlarged view of point B in the middle.

[0032] Fig.16 It is a three-dimensional structural diagram of an outer plate prepared using the present invention.

[0033] Fig.17 for Fig.16 A partial enlarged view of point C in the middle.

[0034] Fig.18 This is a three-dimensional structural diagram of the ship's bottom and cabin side connected together (after the cabin outer plate hides the bulkhead).

[0035] Fig.19 for Fig.18 A partial enlarged view of point D in the middle.

[0036] Fig. 20 for Fig.18 A partial enlarged view of point E in the middle.

[0037] Fig.21 It is a three-dimensional structural diagram of the negative mold in the present invention.

[0038] Fig. 22 Schematic diagram of four thickness regions of the outer panel skin in the present invention.

[0039] Fig.23 This is a schematic diagram of the placement of the glue injection pipelines in the outer panel skin section.

[0040] Fig.24 Schematic diagram of the sewing and fixing of the vertical supporting wall material fabric.

[0041] Fig.25 It is a schematic diagram of the transverse bulkhead longitudinal foam installed on the upper side of the transverse bulkhead skin in the present invention.

[0042] Fig.26 Schematic diagram of the laying and curing of foam on transverse bulkhead longitudinals.

[0043] Fig. 27 This is a schematic diagram after the high buttress foam is installed on the transverse bulkhead skin and transverse bulkhead longitudinals.

[0044] Fig.28 It is a schematic diagram of laying and curing on high buttress foam (i.e., transverse bulkhead in this application).

[0045] In the figure: 100 cabin section, 101 deck, 102 outer plate, 200 deck forming assembly, 201 flat plate mold, 202 bottom plate, 202a2 / 3 skin, 202b 1 / 3 skin, 203 deck positioning longitudinal foam, 204 positioning transverse foam, 205 prefabricated plate, 206 middle longitudinal foam, 207 middle longitudinal, 208 side longitudinal foam, 209 side longitudinal, 210 second side transverse stiffener, 211 first side transverse stiffener, 213 first side transverse stiffener foam, 214 second side transverse stiffener foam, 215 first middle transverse stiffener, 216 second middle transverse stiffener, 217 third middle transverse stiffener, 218 deck longitudinal foam, 219 longitudinal stiffener, 220 positioning longitudinal rib, 221 positioning transverse rib, 222 middle strong transverse beam; 300 outer plate forming assembly, 3 01 second longitudinal foam, 302 first longitudinal foam, 303 third longitudinal foam, 304 outer plate transverse foam, 305 first side keel foam, 306 bottom longitudinal girder foam, 307 bottom strong transverse beam, 308 side keel precast plate 308, 309 intermediate transverse beam, 310 second side keel foam, 311 side strong transverse beam foam, 312 side longitudinal girder foam, 313 negative mold, 314 bulkhead, 400 transverse bulkhead forming component, 401 transverse bulkhead skin, 402 transverse bulkhead longitudinal foam, 403 transverse bulkhead longitudinal, 404 high buttress foam, 404a longitudinal buttress foam, 404b transverse buttress foam, 405 high buttress cap-shaped reinforcement. DETAILED DESCRIPTION

[0046] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0047] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0048] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0049] Example 1 Reference Figure 1 to Figure 21 , which is the first embodiment of the present invention, provides a molding method for a composite material cabin section, which can realize the molding of various components in the cabin section and the installation of the cabin section without the aid of large-scale equipment, and is easy to operate.

[0050] For the convenience of marking, the equipment used in deck forming and the various components in the deck are collectively referred to as deck forming assembly 200, the equipment used in outer plate forming and the various components in the outer plate are collectively referred to as outer plate forming assembly 300, and the various components in the first transverse bulkhead are collectively referred to as transverse bulkhead forming assembly 400.

[0051] A molding method for a composite cabin section includes the following steps: 1. Raw material preparation, including glass fiber unidirectional cloth, glass fiber (45 / -45) biaxial cloth, glass fiber (0 / 90) biaxial cloth, glass fiber chopped strand mat, metal embedded parts, hardwood embedded parts, curing agent, vinyl resin and flame retardant vinyl resin; 2. Mold preparation, using acetone to clean the mold surface of each mold and the flat mold 201, and clean the mold surface from oil, dust and other excess materials. After the acetone on the mold surface evaporates and dries, use wiping paper to apply 770NC release agent on the mold surface. At least 8 layers of release agent should be applied to the new mold, and the time interval between each layer of release agent application should be more than 15 minutes to ensure that the release agent is completely cured; 3. Reference Figure 10 to Figure 15 The forming of the deck 101 comprises the following steps: 301. Lay the bottom plate 202 on the male mold according to the layup design to complete the layup of 2 / 3 skin 202a. During the layup process, the dry cloth interface overlaps 30mm and the overlap interface positions need to be staggered. The layup surface must be flat and wrinkle-free. The dry cloth in the flange area needs to be fixed with 3M spray glue to facilitate the subsequent vacuum system layout. After the layup is completed, the vacuum introduction system of the bottom plate 202 skin is arranged. After the completion, vacuum glue injection is performed, and the glue is cured at room temperature; 302. Use a tape measure, laser level and ink fountain to mark the placement position of the deck positioning longitudinal foam 203. After passing the test, classify the longitudinal foam and pre-place it at the location. At the same time, place the prefabricated plate 205 at the combination position of the bulkhead 314 (the position where two adjacent longitudinal foams need to be combined in the longitudinal direction). The prefabricated plate 205 is a fiberglass plate. To prevent the foam from moving, vinyl resin should be added with 5% curing agent and stirred evenly and applied to the bonding surface. Iron plate should be used for compaction and waiting for the resin to solidify. To facilitate subsequent laying and glue injection, viscous resin should be prepared during bonding. A scraper should be used to scrape out an arc shape at the R corner. After the foam is fixed, the entire surface should be laid according to the laying design to complete the laying of the remaining 1 / 3 of the skin 202b. When laying, use wood to support the R corner and use a wooden hammer to knock to ensure the R The dry cloth at the corner is rolled out without overhead. During the laying process, the dry cloth interface is overlapped by 30mm and the overlap position needs to be staggered. The surface of the laying is guaranteed to be flat and wrinkle-free. After the laying is completed, the edge trimming and guide hole trimming work are carried out. After the laying is completed, the vacuum bag system is made according to the same glue injection principle as the bottom plate 202 skin. Before bagging, the reserved flow water needs to be filled with a silicone rod. The subsequent vacuum bag system needs to put all the hat-shaped rib R areas (the junction of the positioning longitudinal rib 220 and the bottom plate 202, which is called the positioning longitudinal rib 220 after the deck positioning longitudinal bone foam 203 is laid and solidified) in place to ensure the smooth implementation of vacuum glue injection. After the vacuum bag system is completed, vacuum glue injection can be carried out. After the glue injection is completed, it is cured at room temperature. After it is basically hardened and left to stand for 12 hours, the bagging work can be carried out; 303. Install longitudinal girders in the three designed areas respectively. A plurality of intermediate strong transverse beams 222 foams spaced in the front-to-back direction are installed at the upper end of the center of the bottom plate 202. Intermediate longitudinal girders 206 are installed on the upper sides of the bottom plate 202 on the left and right sides of the plurality of intermediate strong transverse beams 222 foams. In the height direction, two intermediate longitudinal girders 206 are stacked together at the corresponding positions. In the longitudinal direction, hardwood embedded parts are placed at the positions where two adjacent intermediate longitudinal girders 206 need to be combined together. In the height direction, prefabricated panels 205 are placed between the two stacked intermediate longitudinal girders 206. The left skin of the left intermediate longitudinal girders 206 and the right intermediate longitudinal girders 206 are placed between the two stacked intermediate longitudinal girders 206. The side longitudinal girder foam 208 is respectively installed on the upper end of the skin on the right side of the girder foam 206. In the longitudinal direction, hardwood embedded parts are placed at the position where two adjacent side longitudinal girder foams 208 need to be combined together. The first side transverse reinforcement foam 213 is respectively installed on the bottom plate 202 on the left side of the hardwood embedded parts on the left side of the left side longitudinal girder foam 208 and on the right side of the hardwood embedded parts on the right side of the right side longitudinal girder foam 208. Steel plate embedded parts are placed on the side longitudinal girder foam 208 and the middle longitudinal girder foam 206 at the positions corresponding to the hatch openings to be opened. Resin is applied to the bonding surface for installation and fixation, and then two layers of felt cloth are hand-pasted on the surface for reinforcement and fixation so that the steel plate will not tip over, ensuring the safety of the operator. 304. According to the ply design, the middle longitudinal girder foam 206, the middle strong transverse beam 222 foam, the side longitudinal girder foam 208 and the first side transverse reinforcement foam 213 are paved respectively. After the regional plying is completed, the vacuum introduction system is arranged in each region. After the completion, vacuum glue injection is performed. After the glue injection is completed, it is cured at room temperature. After it is basically hardened, a heating blanket is used to fully spread and heat it to ensure that it is completely cured. After the curing is completed, the bag is unpacked, and visual inspection, hammer tapping test, thickness measurement, longitudinal and transverse spacing measurement and hardness test (the above tests are all existing technologies and will not be repeated) are performed, and records are recorded. After all the tests are qualified, step S05 is entered; 305. The first middle transverse reinforcement foam is respectively installed on the bottom plate 202 between the middle longitudinal girder 207 and the corresponding side longitudinal girder 209 on the front and rear sides of the hatch cover. The first middle transverse reinforcement foam is placed on the side of the hatch cover opposite to the hatch cover. The steel plate embedded part is applied with resin on the bonding surface for installation and fixation. Then two layers of felt cloth are hand-pasted on the surface for reinforcement and fixation so that the steel plate will not tip over and ensure the safety of the operator; the first side transverse reinforcement rib 211 on the left (the part after the first side transverse reinforcement foam 213 is laid and cured is called the first side transverse reinforcement rib 211) is respectively installed on the bottom plate 202 on the left side of the side longitudinal girder 209 on the front and rear sides. A plurality of second side transverse reinforcing foams 214 are also installed on the bottom plate 202 on the right side of the side longitudinal girder 209 on both sides of the front and rear of the first side transverse reinforcing rib 211 on the right side, a second intermediate transverse reinforcing foam and a third intermediate transverse reinforcing foam are respectively installed on the bottom plate 202 on the right side of the side longitudinal girder 209 on the left side and on the left side of the middle longitudinal girder 207 on the left side, a second intermediate transverse reinforcing foam and a third intermediate transverse reinforcing foam are also respectively installed on the bottom plate 202 on the right side of the middle longitudinal girder 207 on the right side and on the left side of the side longitudinal girder 209 on the right side, and there is a spacing between the second intermediate transverse reinforcing foam and the corresponding third intermediate transverse reinforcing foam; 306. According to the ply design, the second side transverse reinforcing foam 214, the first middle transverse reinforcing foam, the second middle transverse reinforcing foam and the third middle transverse reinforcing foam are paved respectively. After the plying is completed in different regions, the vacuum introduction system is arranged in different regions. After the plying is completed, vacuum glue injection is performed. After the glue injection is completed, it is cured at room temperature. After it is basically hardened, a heating blanket is used to fully spread and heat it to ensure that it is completely cured. After the curing is completed, the bag is unpacked, and visual inspection, hammer tapping test, thickness measurement, vertical and horizontal spacing measurement and hardness test (the above tests are all existing technologies and will not be repeated) are performed, and records are recorded. After all the tests are qualified, the process goes to step 307; 307. According to the ply design, the second side transverse reinforcing foam 214, the first middle transverse reinforcing foam, the second middle transverse reinforcing foam and the third middle transverse reinforcing foam are paved respectively. After the plying is completed in different regions, the vacuum introduction system is arranged in different regions. After the plying is completed, vacuum glue injection is performed. After the glue injection is completed, it is cured at room temperature. After it is basically hardened, a heating blanket is used to fully spread the temperature to ensure that it is completely cured. After the curing is completed, the bag is unpacked, and visual inspection, hammer tapping test, thickness measurement, vertical and horizontal spacing measurement and hardness test (the above tests are all existing technologies and will not be repeated) are performed, and records are recorded. After all the tests are qualified, step S08 is entered; 308. Install the deck longitudinal foam 218 on the bottom plate 202 between the second middle transverse reinforcement rib 216 and the corresponding third middle transverse reinforcement rib 217. One side of the deck longitudinal foam 218 in the front-to-back direction is connected to the corresponding third transverse reinforcement foam. The other side of the deck longitudinal foam 218 in the front-to-back direction is flush with the front side of the bottom plate 202. Lay the deck longitudinal foam 218 according to the laying design, arrange the vacuum introduction system, and perform vacuum glue injection after completion. After the glue injection is completed, it is cured at room temperature. 309. Demolding.

[0052] For the convenience of description, in the left and right directions, the longitudinal foam on the left is named the left longitudinal foam, and the longitudinal foam on the right is named the right longitudinal foam. A plurality of positioning transverse bone foams 204 spaced apart in the front-to-back direction are provided on the right side of the deck positioning longitudinal bone foam 203 on the left side of the left longitudinal foam (the positioning transverse bone foam 204 is installed in step S4). When placing the longitudinal foams, the left side of the left longitudinal foam is attached to the right side of the positioning transverse bone foam 204 on the left, and the right side of the right longitudinal foam is attached to the left side of the positioning transverse bone foam 204 on the right.

[0053] The deck positioning longitudinal foam 203, the positioning transverse foam 204 and the longitudinal foam parts at the position after laying and curing are respectively called positioning longitudinal ribs 220, positioning transverse ribs 221 and longitudinal reinforcing ribs 219. The joint setting of the positioning longitudinal ribs 220, the positioning transverse ribs 221 and the corresponding longitudinal reinforcing ribs 219 forms a space for accommodating the small cabin door, which facilitates the connection and positioning of the small cabin door.

[0054] 4. Reference Figure 16 to Figure 21 The forming of the outer panel 102 includes the following steps: 401. Lay the outer panel 102 skin in the female mold 313 according to the layer laying design. After the laying is completed, arrange the vacuum introduction system, vacuum glue injection after completion, and cure at room temperature after the glue injection is completed; 402. A plurality of bottom positioning longitudinal foams are respectively installed on the bottom and the side of the outer plate 102 skin after solidification, and the side and the bottom are entirely layered on the bottom positioning longitudinal foams according to the layering design. During the layering process, the fabric interfaces need to be overlapped and the overlap positions need to be staggered. After the layering is completed, a vacuum introduction system is arranged, and vacuum glue injection is performed after the completion. After the glue injection is completed, the system is cured at room temperature. 403. Install the vertically arranged first longitudinal foams 302 on the bulkhead 314 of the outer panel 102 skin according to the designed position, complete individual paving on each first longitudinal foam 302 according to the ply design, arrange the vacuum introduction system, perform vacuum glue injection after completion, and cure at room temperature after glue injection; 404. A second longitudinal foam 301, a third longitudinal foam 303, and a horizontally arranged outer plate transverse foam 304, which are arranged vertically and have a thickness greater than that of the first longitudinal foam 302, are installed on the bulkhead 314 between the longitudinal foams at the set position. The thicknesses of the second longitudinal foam 301, the third longitudinal foam 303, and the outer plate transverse foam 304 are the same. The width of the second longitudinal foam 301 is greater than that of the third longitudinal foam 303. The outer plate transverse foam 304 and various longitudinal foams are crossed. The second longitudinal foam 301, the third longitudinal foam 303, and the outer plate transverse foam 304 are integrally paved according to the ply design. When paving, the horizontal and vertical fibers need to be alternately and continuously crossed to lay dry cloth. After the plying is completed, a vacuum introduction system is arranged. After the completion, vacuum glue injection is performed. After the glue injection is completed, it is cured at room temperature. 405. Install a plurality of ship bottom longitudinal girder foams 306 at set positions on the ship bottom, complete individual paving on each ship bottom longitudinal girder foam 306 according to the ply design, arrange a vacuum introduction system after plying, perform vacuum glue injection after completion, and cure at room temperature after glue injection; 406. An intermediate hardwood embedded part is installed on the bottom between two bottom longitudinal girder foams 306. A plurality of intermediate crossbeams 309 foams are installed on the bottom outside the front and rear sides of the intermediate hardwood embedded part at intervals in the front and rear directions. Two first side keel foams 305 which are spaced apart in the left and right directions and stacked together in the height direction are installed on the bottom on the front and rear sides of the intermediate hardwood embedded part. The intermediate crossbeams 309 foams are installed between the two first side keel foams 305 which are spaced apart in the left and right directions. Side hardwood embedded parts are installed on the bottom of two bottom longitudinal girder foams 306 which are away from each other in the left and right directions. Two second side keel foams 310 which are stacked together in the height direction and connected to the bottom are connected to the front and rear sides of the side hardwood embedded parts. Metal embedded parts are connected to the set positions of the first side keel foams 305 and the second side keel foams 310. 407. According to the ply design, complete the whole surface paving on the connected middle cross beam 309 foam, the first side keel foam 305 and the middle hardwood embedded parts, the connected side hardwood embedded parts and the second side keel foam respectively. After the plying is completed, arrange the vacuum introduction system, and after the completion, vacuum glue injection is carried out. After the glue injection is completed, it is cured at room temperature. After curing, the part where the second side keel foam 310 is located is called the second side keel, and the part where the first side keel foam 305 is located is called the first side keel. In the left and right direction, at the first side keel foam 305, the second side keel foam 310 is located. A number of ship bottom strong transverse beams 307 foams are installed on the ship bottom between the side keel and the corresponding longitudinal girder, the second side keel and the adjacent longitudinal girder, and the foam is laid on the ship bottom strong transverse beam 307 foam according to the laying design. The laying sequence is the same as the laying sequence of the ship bottom longitudinal girder foam 306. The total laying thickness is 15mm, and the flange is 200mm. After the laying is completed, a vacuum introduction system is arranged, and vacuum glue is injected. After the glue injection is completed, it is cured at room temperature. The component at the position of the ship bottom strong transverse beam 307 foam that has been cured is called the ship bottom strong transverse beam 307; 408. A plurality of side strong transverse beam foams 311 are respectively installed on the bottom of the ship at a side away from the two side ribs, and are spaced apart in the front-rear direction. One end of the side strong transverse beam foam 311 away from the corresponding side rib in the left-right direction is installed on the side. Laying is performed on each side strong transverse beam foam 311 according to the laying design. After the laying is completed, a vacuum introduction system is arranged, and vacuum glue injection is performed. After the glue injection is completed, the glue is cured at room temperature. 409. Install the side longitudinal girder foam 312208 on the side between two adjacent side strong transverse beams according to the designed position, and perform hand lay-up molding on each side longitudinal girder foam 312208 according to the lay-up design; 410, demoulding; When installing each longitudinal foam, the structural adhesive is used to bond and fix them in sections from bottom to top. When installing the outer panel transverse foam 304, the outer panel transverse foam 304 is first supported by a preset supporting wooden block and then bonded and fixed by the structural adhesive.

[0055] 5. Reference Figure 25 to Figure 28 The forming of the first transverse bulkhead 314 comprises the following steps: 501. Lay the transverse bulkhead skin 401 on the first transverse bulkhead 314 forming male mold according to the layup design. During the layup process, the dry cloth interface is overlapped by 30 mm and the overlap interface positions need to be staggered. After the laying is completed, the vacuum introduction system is arranged, and vacuum glue is injected after completion. After the glue injection is completed, it is cured at room temperature; 502. Install a plurality of parallel transverse bulkhead longitudinal foams 402 on the upper side of the transverse bulkhead skin 401 according to the set position, and lay each transverse bulkhead longitudinal foam 402 separately according to the layup design. After the laying is completed, arrange the vacuum introduction system, vacuum glue is injected after completion, and the glue is cured at room temperature after the injection is completed; 503. Install high buttress foam 404 on the upper side of the transverse bulkhead skin 401. The high buttress foam 404 includes a plurality of longitudinal buttress foams 404a. Transverse buttress foams 404b are fixed on the plurality of longitudinal buttress foams 404a. The transverse buttress foams 404b are perpendicular to the longitudinal buttress foams 404a. The longitudinal buttress foams 404a are arranged between two corresponding adjacent transverse bulkhead longitudinal foams 402. The transverse buttress foams 404b intersect with the transverse bulkhead longitudinal foams 402. The high buttress foams 404 are individually laid on the transverse bulkhead skin 401 according to the layup design. Laying, during the laying process, the dry cloth interface overlaps 30mm and the overlap position needs to be staggered. After the laying is completed, the vacuum introduction system is arranged, and vacuum glue is injected after completion. After the glue injection is completed, it is cured at room temperature; 504, demoulding; 505, firstly, the outer contour is cut and polished according to the skin cutting line. According to the structural characteristics of the first transverse bulkhead 314, in order to be assembled with the hull, the interference parts on the left and right sides are respectively divided to obtain two side transverse bulkheads 314 and the middle transverse bulkhead 314 (the left and right sides of the middle transverse bulkhead 314 can be spliced ​​with the side transverse bulkhead 314 respectively); 6. Forming of the second transverse bulkhead 314. The forming method of the second transverse bulkhead 314 is the same as that of the first transverse bulkhead 314, except that the size is different, which will not be described in detail in this application; 7. Prepare two pre-prepared ballast tank platforms, several bottom plates and two half bulkheads 314; 8. Reference Figures 1 to 8, install the first transverse bulkhead 314 and the second transverse bulkhead 314 into the outer plate 102 respectively (the first transverse bulkhead 314 and the second transverse bulkhead 314 are assembled in the same way. When installing, take the installation of the first transverse bulkhead 314 as an example. First, connect the two side transverse bulkheads 314 to the inner wall of the outer plate 102 respectively, and then assemble the middle transverse bulkhead 314. The specific process is to first mark the theoretical line of the transverse bulkhead 314 position on the outer plate 102, use a crane to lift the bulkhead 314 to the installation position, and repair the longitudinal bone through holes on the bulkhead 314. After all the through holes are repaired, For assembly, first assemble the two side transverse bulkheads 314 close to the side, align the theoretical line surface of the transverse bulkhead 314 with the theoretical line on the outer plate 102, check whether the upper middle position of the bulkhead 314 is vertical, if not, adjust it to be vertical, fix the upper and lower ends of the bulkhead 314 and the side supports with wooden squares, and hand-paste the process to complete the connection. After the hand-paste of the transverse bulkheads 314 on both sides is completed, assemble the middle transverse bulkhead 314, align the theoretical line surface of the lower end of the middle transverse bulkhead 314 with the theoretical line of the outer plate 102, and align the two sides with the transverse bulkheads 314 on both sides. The three transverse bulkheads 31 4 The upper openings are in a straight line, and after positioning, they are fixed with wooden support, and then handed over to the hand-paste process to complete the connection, so as to realize the connection between the first transverse bulkhead 314 and the outer plate 102). The first transverse bulkhead 314 and the second transverse bulkhead 314 are respectively arranged at one end relative to the front and rear bulkheads 314 of the outer plate 102 to form large ballast tanks, and the bottom flat plates are respectively installed on the upper side of the bottom in the large ballast tanks, and the ballast tank platform is installed on the upper side of the bottom flat plate. After fixing, the half bulkhead 314 is installed on the upper side of the ballast tank platform to divide the large ballast tank into two small ballast tanks, which are respectively installed on the first side dragon The lower I-beam is fixedly connected to the upper side of the keel and the upper side of the two adjacent second side keels (the middle strong transverse beam 307 of the bottom in the fore-and-aft direction), the steel pipe pillar is fixedly connected to the upper side of the lower I-beam, and the upper I-beam is fixedly connected to the upper side of the side longitudinal girder 209 and the two adjacent middle longitudinal girder 207 (the middle strong transverse beam 222 in the fore-and-aft direction) respectively. Finally, the deck 101 (the end where the upper I-beam is located faces downward) is installed to the upper end of the outer plate 102, so that the upper I-beam is aligned with the corresponding steel pipe pillar, and the upper I-beam and the steel pipe pillar are fixedly connected together to realize the assembly of the cabin section 100.

[0056] Among them, the resin used in the molding of the outer plate 102 is vinyl resin, the resin used in the deck 101, the first transverse bulkhead 314, the second transverse bulkhead 314 and their components is flame-retardant vinyl resin, and the foam core material is PVC foam with appropriate density; the unidirectional cloth and the biaxial cloth are both glass fiber cloth, and the material of the felt is also glass fiber; the first middle transverse reinforcement foam, the second middle transverse reinforcement foam and the third middle transverse reinforcement foam are paved and cured and are respectively called the first middle transverse reinforcement rib 215, the second middle transverse reinforcement rib 216, and the third middle transverse reinforcement rib 217, and the parts after the first side transverse reinforcement foam 213 and the second side transverse reinforcement foam 214 are paved and cured are respectively called the first side transverse reinforcement rib 211 and the second side transverse reinforcement rib 210; the parts at the deck longitudinal foam 218 position after paving and curing are called the deck 101 longitudinal reinforcement rib 219; Figure 8 As shown, the first side keel and the second side keel in this application are collectively referred to as the bottom longitudinal bone; Figure 6 As shown, the components prepared at the positions of the solidified middle longitudinal girder foam 206 and the side longitudinal girder foam 208 are collectively referred to as the strong longitudinal bones of the deck 101, and the components prepared at the positions of the solidified middle strong transverse beam 222 foam and the outer plate transverse foam 304 are collectively referred to as the deck strong transverse beam.

[0057] This embodiment can prepare the hull compartment 100 without the aid of large-scale hot pressing molding equipment, and the operation process is simple and the molding efficiency is high.

[0058] Example 2 Reference Figure 22 to Figure 24 , which is the second embodiment of the present invention, and this embodiment provides a molding method for a composite material cabin section 100, which further realizes the layup in each process of the hull molding process and the vacuum system layout and glue injection method design of the key parts to ensure the reliable molding of each component in the cabin section 100.

[0059] The specific laying steps of step 301 are as follows: firstly, a first layer of felt is laid on the upper side of the deck 101 forming male mold, and three cycles of whole-surface laying are performed on the first layer of felt. The whole-surface laying sequence of each cycle is to use a layer of biaxial cloth [45°, -45°], a layer of biaxial cloth [0°, 90°], a layer of unidirectional cloth [0°], a layer of biaxial cloth [90°, 0°], a layer of biaxial cloth [-45°, 45°] and a layer of biaxial cloth [0°, 90°], and then a second layer of felt is laid, and two cycles of whole-surface laying are performed on the second layer of felt. The laying sequence of each cycle is to use a layer of biaxial cloth [45°, -45°], a layer of biaxial cloth [ 0°, 90°] biaxial cloth, a layer of 0° unidirectional cloth, a layer of [90°, 0°] biaxial cloth and a layer of [-45°, 45°] biaxial cloth, the thickness of the above paving is 12mm; the paving step of step 302 is to perform 3 cycles of full-surface paving on the basis of step 301, and the paving sequence of each cycle is one layer of [45°, -45°] biaxial cloth, one layer of [0°, 90°] biaxial cloth, one layer of 0° unidirectional cloth, one layer of [90°, 0°] biaxial cloth and one layer of [-45°, 45°] biaxial cloth, and the paving thickness is 7mm; in step 304, respectively, on the middle strong crossbeams connected together The layers are laid on the foam 222 and the middle longitudinal girder foam 206 and the side longitudinal girder foam 208 respectively, and the laying method is the same, according to the mutual interlacing and overlapping laying, and the overlapping interface position needs to be staggered overlap; the laying step of step 305 is to lay the entire surface on the deck longitudinal foam 218, first lay a layer of [45°, -45°] biaxial cloth, and then perform 2 cycles of full-surface laying on this basis, and the laying order of each cycle is one layer of 0° unidirectional cloth, one layer of [90°, 0°] biaxial cloth, one layer of [-45°, 45°] biaxial cloth, one layer of [45°, -45°] biaxial cloth and one layer of [0°, 90°] biaxial cloth, and then according to the order of the unidirectional cloth, the biaxial cloth is laid on the deck longitudinal foam 218, and the biaxial cloth is laid on the deck longitudinal foam 218. Next, lay a layer of biaxial cloth [90°, 0°], a layer of biaxial cloth [-45°, 45°] and a layer of felt, and continue to lay the entire surface on the basis of the felt. The laying order is: a layer of biaxial cloth [45°, -45°], a layer of biaxial cloth [0°, 90°], a layer of unidirectional cloth [0°], a layer of biaxial cloth [90°, 0°], a layer of biaxial cloth [-45°, 45°], a layer of biaxial cloth [45°, -45°], a layer of biaxial cloth [0°, 90°], a layer of unidirectional cloth [0°] and a layer of biaxial cloth [-45°, 45°], and finally lay a layer of felt. The total laying thickness is 11mm.

[0060] During the above laying process, a right-hand coordinate system is specified, with the length direction of the longitudinal foam stringer as 0° and the horizontal direction perpendicular to the length direction of the longitudinal foam stringer as 90°.

[0061] The paving steps of step 401 are as follows: the area where the upper parts of the inner walls at the left and right ends of the female mold 313 are located is area I, the central concave area at the bottom of the female mold 313 is area III, the area where the inner wall of the female mold 313 between areas I and III is located is area II, and the area where the inner walls at the front and rear ends of the female mold 313 are located corresponds to the bulkhead 314 of the outer plate 102. First, two cycles of paving are performed in the female mold 313. The paving process of each cycle of paving is to first lay the first layer of felt as a whole, and then perform the first full-surface paving on the first layer of felt. The first full-surface paving sequence is to use a layer of [45°, -45°] biaxial cloth, a layer of [0°, 90°] biaxial cloth, a layer of 0° unidirectional cloth, a layer of [90°, 0°] biaxial cloth and a layer of [-45°, 45°] biaxial cloth. The first single paving is performed at the position of area III. The first single paving The order is to use a layer of biaxial cloth [45°, -45°], a layer of biaxial cloth [0°, 90°], a layer of unidirectional cloth [0°], a layer of biaxial cloth [90°, 0°], a layer of biaxial cloth [-45°, 45°] and a layer of felt; on the basis of 2 cycles of laying, the first single laying is carried out at the positions of bulkhead 314, zone II and zone III. The laying order of the first single laying is to use a layer of biaxial cloth [45°, -45°], a layer of biaxial cloth [0°, 90°], a layer of unidirectional cloth [0°], a layer of biaxial cloth [90°, 0°] and a layer of biaxial cloth [-45°, 45°] at the positions of bulkhead 314 and zone I Continue to lay paving at the position of zone II. The laying order is to use one layer of biaxial cloth [45°, -45°], one layer of biaxial cloth [0°, 90°], one layer of unidirectional cloth 0°, one layer of biaxial cloth [90°, 0°] and one layer of biaxial cloth [-45°, 45°]. Carry out the second whole-surface laying. Lay a layer of felt on the basis of the second whole-surface laying. Carry out the second single laying at the position of bulkhead 314, zone II and zone III. The laying order of the second single laying is the same as that of the first single laying. Carry out the third whole-surface laying. The order of each whole-surface laying is the same. On the basis of the third whole-surface laying, lay paving ... The fourth whole-surface laying is carried out at the position where the fourth whole-surface laying includes 2 cycles of laying, and the laying order of each cycle of laying is one layer of biaxial cloth [45°, -45°], one layer of biaxial cloth [0°, 90°], one layer of unidirectional cloth 0°, one layer of biaxial cloth [90°, 0°], one layer of biaxial cloth [-45°, 45°], one layer of biaxial cloth [45°, -45°], one layer of biaxial cloth [0°, 90°], one layer of unidirectional cloth 0°, one layer of biaxial cloth [90°, 0°] and one layer of biaxial cloth [-45°, 45°], and a layer of felt is laid between the 2 cycles of laying; laying is interspersed at the four positions and the laying is completed at the same time;After the layers are laid, the skin thickness of zone III is 28 mm, the skin thickness of zone II is 18 mm, the skin thickness of zone I is 13 mm, and the thickness of the bottom plate 202 at the bulkhead 314 is 22 mm. ;

[0062] As the height of the outer panel 102 is 5mm, the dry fiber fabric laid on a large facade is prone to falling off and slipping. When laying the entire layer, the dry cloth needs to be extended to the back of the mold, and the tension of the dry cloth itself is used to offset its gravity. When operating, the facade needs to be sprayed with more 3M setting agent. When using it, it is necessary to spray a large area at a distance of 1 meter from the product. It is not allowed to spray the same area repeatedly back and forth. In this way, the surface quality can be guaranteed.

[0063] When laying the layers, when laying the layers in the transition area from zone II to zone I, place strong hook magnets at multiple points in the transition area to assist in fixation. When laying the layers subsequently, remove the magnets one by one and lay the dry cloth.

[0064] During the laying process, overlap is adopted and the overlap is staggered to ensure the strength of the product. Rolling boards are used to compact the layers to ensure that the fabric is flat and has no obvious wrinkles.

[0065] The specific process of arranging the vacuum system is as follows: On the outer panel 102 skin, the peeling cloth, flow guide net, glue injection pipeline, and breathable felt are laid in sequence. According to the experience of vacuum introduction, the peeling cloth needs to cover the entire surface of the product, and the surface should be flat and wrinkle-free. The flow guide net and flow guide spiral tube are laid according to the designed glue injection direction. A speed bump is set on the skin surface of one of the bulkheads 314 to ensure that all glue injections are completed at the same time to prevent the situation where glue has been injected on the lower surface but not on the higher surface; Lay out vacuum introduction auxiliary materials according to the above requirements and fix them with masking tape to complete the vacuum bag making. To prevent air leakage in the vacuum bag, make a double-layer sealed vacuum bag. After the first layer of vacuum bag is sealed, check the vacuum degree. The vacuum degree is required to exceed -0.09MPa during vacuuming, and the pressure drop should not exceed 0.01MPa for 10 minutes. After the vacuum degree meets the requirements, the second layer of vacuum bag packaging is carried out. When connected to the vacuum pump system, the vacuum degree must be guaranteed to reach -0.09MPa or above for 1 hour before preparing for vacuum introduction and injection. To prevent resin from flowing into the vacuum pump, a buffer tank must be connected between the glue outlet and the vacuum pump. When injecting glue, start from the middle of the bottom of the ship and guide it to both sides. When it reaches the side chord, open the injection ports of the bow and stern panels at the same time and inject glue upwards in a climbing manner (reference Fig.23 ).

[0066] After the glue is injected, it is cured at room temperature. After it is basically hardened, it is fully heated with a heating blanket to make it completely cured or left to stand for 48 hours before subsequent demoulding.

[0067] After unpacking and demolding, use a caliper or height gauge to perform multi-point thickness inspection and record it. Visually check whether there are obvious defects on the surface of the skin, and use a Barcol hardness tester to perform multi-point inspection. If the Barcol hardness is above 40, the next procedure can be carried out.

[0068] The laying procedure of step 402 is to carry out whole-surface laying on the basis of step 401, firstly carry out 2 cycles of whole-surface laying, and the whole-surface laying sequence of each cycle is one layer of biaxial cloth [45°, -45°], one layer of biaxial cloth [90°, 0°], one layer of unidirectional cloth 0°, one layer of biaxial cloth [90°, 0°] and one layer of biaxial cloth [-45°, 45°]; after 2 cycles of whole-surface laying, lay a layer of felt, and carry out 2 cycles of whole-surface laying on the felt, and finally lay another layer of felt; the skin thickness after laying is 9 mm.

[0069] The laying procedure of step 403 is to carry out separate laying on each first longitudinal foam 302 of the bottom plate 202 of the bulkhead 314, and the laying sequence is to carry out 2 cycles of full-surface laying, and the full-surface laying sequence of each cycle is to carry out a layer of [45°, -45°] biaxial cloth, a layer of [90°, 0°] biaxial cloth, a layer of 0° unidirectional cloth, a layer of [90°, 0°] biaxial cloth and a layer of [-45°, 45°] biaxial cloth; after 2 cycles of full-surface laying, lay a layer of felt, and carry out 2 cycles of full-surface laying on the felt, and finally lay another layer of felt; the skin thickness after the laying is 9 mm, and the flange is 100 mm.

[0070] The laying step of step 404 is to lay layers on various types of foams, and when laying layers, the horizontal and vertical fibers are alternately and continuously laid dry cloth. Specifically, a layer of [45°, -45°] biaxial cloth is laid first, and then two cycles of full-surface laying are performed on this basis. The laying order of each cycle is a layer of 0° unidirectional cloth, a layer of [90°, 0°] biaxial cloth, a layer of [-45°, 45°] biaxial cloth, a layer of [45°, -45°] biaxial cloth and a layer of [0°, 90°] biaxial cloth, and then a layer of [90°, 0°] biaxial cloth, a layer of [-45°, 45°] biaxial cloth, and a layer of [0°, 90°] biaxial cloth are laid in sequence. The first layer is a biaxial cloth [5°, 45°] and a layer of felt. On the basis of the felt, the whole surface is laid. The laying order is: a layer of biaxial cloth [45°, -45°], a layer of biaxial cloth [0°, 90°], a layer of unidirectional cloth [0°], a layer of biaxial cloth [90°, 0°], a layer of biaxial cloth [-45°, 45°], a layer of biaxial cloth [45°, -45°], a layer of biaxial cloth [0°, 90°], a layer of unidirectional cloth [0°] and a layer of biaxial cloth [-45°, 45°], and finally a layer of felt is laid. The layer thickness is 11mm.

[0071] In step 403 and step 404, each layer of fabric needs to be fixed during vertical laying to ensure that the fabric does not slide down. A 5mm long drill bit is used to drill holes for wiring at the top, middle, and tail of the supporting wall material. After laying one layer, a silver needle is prepared to insert a single fiber, and the fabric is sewed to the foam around the wiring hole. The flange is fixed with 3M spray glue, and this step is repeated to lay the fabric of all the supporting wall material cap-shaped ribs (each longitudinal foam is a supporting wall material).

[0072] The paving procedure of step 405 is to perform separate whole-surface paving on each of the longitudinal girder foams 306 of the bottom of the ship, specifically, first perform two cycles of separate whole-surface paving, and the order of the separate whole-surface paving in each cycle is one layer of biaxial cloth [45°, -45°], one layer of biaxial cloth [0°, 90°], one layer of unidirectional cloth 0°, one layer of biaxial cloth [90°, 0°] and one layer of biaxial cloth [-45°, 45°]; after the two cycles of separate whole-surface paving are completed, the first layer of felt is paved, and two cycles of whole-surface paving are performed on the first layer of felt, and the second layer of felt is paved, and two cycles of whole-surface paving are performed on the second layer of felt, and finally another layer of felt is paved, and the total paving thickness is 15 mm, and the flange is 200 mm.

[0073] The laying procedure of step 406 is to carry out separate whole-surface laying on each of the longitudinal girder foams 306 of the bottom of the ship, and firstly carry out two cycles of separate whole-surface laying, and the order of separate whole-surface laying in each cycle is one layer of biaxial cloth [45°, -45°], one layer of biaxial cloth [0°, 90°], one layer of unidirectional cloth 0°, one layer of biaxial cloth [90°, 0°] and one layer of biaxial cloth [-45°, 45°]; after two cycles of separate whole-surface laying, lay the first layer of felt, carry out two cycles of whole-surface laying on the first layer of felt, lay the second layer of felt, carry out two cycles of whole-surface laying on the second layer of felt, and finally lay one more layer of felt, with a total laying thickness of 15 mm and a flange of 200 mm.

[0074] The laying step in step 408 is to carry out separate whole-surface laying on each side strong transverse beam foam 311 of the ship side, specifically, first carry out 2 cycles of separate whole-surface laying, and the order of separate whole-surface laying in each cycle is one layer of biaxial cloth [45°, -45°], one layer of biaxial cloth [0°, 90°], one layer of unidirectional cloth 0°, one layer of biaxial cloth [90°, 0°] and one layer of biaxial cloth [-45°, 45°]; after 2 cycles of separate whole-surface laying, lay the first layer of felt, carry out 2 cycles of whole-surface laying on the first layer of felt, lay the second layer of felt, carry out 2 cycles of whole-surface laying on the second layer of felt, and finally lay one layer of felt, with a total laying thickness of 15 mm and a flange of 200 mm.

[0075] During the above laying process, a right-hand coordinate system is specified, with the length direction of the bottom positioning longitudinal foam as 0° and the horizontal direction perpendicular to the length direction of the bottom positioning longitudinal foam as 90°.

[0076] The laying procedure of step 501 is to lay a layer of felt on the upper surface of the flat plate, and perform 2 cycles of whole-surface laying on the felt. The whole-surface laying sequence of each cycle is a layer of biaxial cloth [45°, -45°], a layer of biaxial cloth [0°, 90°], a layer of unidirectional cloth 0°, a layer of biaxial cloth [90°, 0°] and a layer of biaxial cloth [-45°, 45°]. After 2 cycles of whole-surface laying, a layer of felt is laid, and then 4 cycles of whole-surface laying are performed on the felt. After 4 cycles of whole-surface laying are completed, a layer of felt is laid, and then 2 cycles of whole-surface laying are performed. The total laying thickness is 19 mm.

[0077] After laying out all fabric sheets, place the demoulding cloth on the surface of the top fabric layer, place the guide net on the surface of the stripping cloth (pay attention to the direction of the guide net), position the corrugated pipe on the surface of the guide net, place the glue injection port at the appropriate position, and finally place the vacuum bag, seal the vacuum bag and the mold in place, and connect the glue injection port and the glue outlet to the vacuum pump system.

[0078] Connect the vacuum system and check whether the vacuum bag system has any leakage, blockage or other problems.

[0079] Prepare the resin by placing an appropriate margin according to the theoretical weight of the part, and record the resin preparation time, weight, and status.

[0080] Make sure there are no bubbles in the resin before starting the injection process. Strictly follow the process regulations to ensure that the resin penetrates all areas of the part. Close the injection system and start the curing process. Curing is done at room temperature. After it is basically hardened, use a heating blanket to fully heat it to make it completely cured.

[0081] The laying procedure of step 502 is to cut the sheet according to the size of each transverse bulkhead longitudinal foam 402, firstly perform 2 cycles of laying on the transverse bulkhead longitudinal foam 402 on the upper side of the transverse bulkhead skin 401, and the laying sequence of each cycle is one layer of biaxial cloth [45°, -45°], one layer of biaxial cloth [90°, 0°], one layer of unidirectional cloth 0°, one layer of biaxial cloth [90°, 0°] and one layer of biaxial cloth [-45°, 45°]; after 2 cycles of whole-surface laying, lay a layer of felt, perform 2 cycles of laying on the felt again, and finally lay another layer of felt; the skin thickness after laying is 9 mm.

[0082] For vacuum introduction and curing, a vacuum system needs to be made separately and vacuum introduction is carried out separately by glue injection from top to bottom. The small edge supporting wall materials can be vacuum introduced together with the large supporting wall next to them. After the vacuum bag system is completed, vacuum glue injection work is carried out in sequence. After the glue injection is completed, room temperature curing is also adopted. After it is basically hardened, a heating blanket is used to fully spread the temperature to ensure its complete curing (the parts laid on the transverse bulkhead longitudinal frame foam 402 and cured are called transverse bulkhead longitudinal frame 403). After the curing is completed, visual inspection, thickness measurement, frame material spacing measurement and hardness test are carried out.

[0083] The laying process of step 503 is to lay layers on the high wall support foam 404, first lay a layer of [45°, -45°] biaxial cloth, and then perform 2 cycles of full-surface laying on this basis. The laying order of each cycle is a layer of 0° unidirectional cloth, a layer of [90°, 0°] biaxial cloth, a layer of [-45°, 45°] biaxial cloth, a layer of [45°, -45°] biaxial cloth and a layer of [0°, 90°] biaxial cloth, and then lay a layer of [90°, 0°] biaxial cloth, a layer of [-45°, 45°] biaxial cloth and a layer of felt in sequence, and continue to lay layers on the basis of the felt. The entire surface is paved in the following order: one layer of biaxial cloth [45°, -45°], one layer of biaxial cloth [0°, 90°], one layer of unidirectional cloth 0°, one layer of biaxial cloth [90°, 0°], one layer of biaxial cloth [-45°, 45°], one layer of biaxial cloth [45°, -45°], one layer of biaxial cloth [0°, 90°], one layer of unidirectional cloth 0° and one layer of biaxial cloth [-45°, 45°], and finally a layer of felt. The total thickness of the paving is 11mm, and the flange is 150mm. When paving, the dry cloth must be laid alternately and continuously with the horizontal and vertical fibers, and the R corners must be rolled compactly without any overhead.

[0084] In the above laying process, the right-hand coordinate system is specified, with the length direction of the transverse bulkhead longitudinal foam 402 as 0° and the horizontal direction perpendicular to the length direction of the transverse bulkhead longitudinal foam 402 as 90°. According to the characteristics of transverse and longitudinal laying, this supporting wall material now needs to be arranged as a whole to make a vacuum system with vacuum introduction auxiliary materials. The injection port is also placed in the center of the cap-shaped rib panel, and the spiral tube of the glue outlet needs to be laid in a continuous S shape around the longitudinal and transverse supporting wall materials. After the vacuum bag is made, vacuum introduction and room temperature curing are carried out (the part laid and cured on the high supporting wall foam 404 is called high supporting wall cap-shaped rib 405). After curing, visual inspection, thickness measurement, frame spacing measurement and hardness test are carried out. After the first transverse bulkhead 314 is fully cured, the auxiliary materials are peeled off, and the product is turned over to facilitate cutting and grinding according to the cutting line. First, the outer contour is cut and polished according to the skin cutting line. According to the structural characteristics of the first transverse bulkhead 314 and the second transverse bulkhead 314, in order to be assembled with the hull, the interference on both sides needs to be divided. The arrangement of the vacuum system and the injection of glue which are not mentioned in the present application can be achieved using conventional techniques and are not improvements of the present application.

[0085] Through the two embodiments in the present application, the strength requirements can be met while the dimensional accuracy and appearance requirements are guaranteed, and the overall preparation of the cabin can be completed with high quality and high efficiency. It does not require the use of large-scale equipment for molding, is simple to operate, and has low preparation costs.

Claims

1. A method for forming a composite material cabin section, characterized in that: The following steps are included:

1. Raw materials preparation; 2. Mold preparation; 3. Deck molding; 4. Forming of outer panels; 5. Forming of the first transverse bulkhead; 6. Forming of the second transverse bulkhead; 7. Prepare two ballast tank platforms, several bottom plates and two half bulkheads; 8. Install the first transverse bulkhead and the second transverse bulkhead into the outer plate respectively. The ends of the first transverse bulkhead and the second transverse bulkhead respectively arranged opposite to the front and rear bulkheads of the outer plate form large ballast tanks respectively. Install the bottom flat plate on the upper side of the bottom in the large ballast tank respectively. Install the ballast tank platform on the upper side of the bottom flat plate. After fixing, install the half bulkhead on the upper side of the ballast tank platform to divide the large ballast tank into two small ballast tanks. Finally, install the deck on the upper side of the outer plate.

2. The method for forming a composite material cabin section according to claim 1, characterized in that: Step 3 Specific The following steps are included:

301. Lay the bottom plate on the deck forming positive mold according to the laying design. After the laying is completed, arrange the vacuum introduction system, vacuum inject glue after completion, and cure at room temperature after the injection of glue; 302. Install several deck positioning longitudinal foams on the cured bottom plate. After the deck positioning longitudinal foams are fixed, perform full-surface ply laying on the bottom plate and the deck positioning longitudinal foams according to the ply design. After the ply laying is completed, arrange the vacuum introduction system. After the completion, perform vacuum glue injection. After the glue injection is completed, cure at room temperature.

303. Install longitudinal girder foams according to the designed positions. Install several middle strong transverse girder foams spaced apart in the front-rear direction at the center of the bottom plate. Install middle longitudinal girder foams on the upper sides of the bottom plates on the left and right sides of several middle strong transverse girder foams. Install side longitudinal girder foams on the bottom plate to the left of the middle longitudinal girder foam on the left and on the right of the middle longitudinal girder foam on the right. Install transverse foams on the left side of the middle longitudinal girder foam on the left, on the right side of the middle longitudinal girder foam on the right, and on the bottom plates on the left and right sides of the side longitudinal girder foams.

304. According to the ply design, the paving is completed on the middle longitudinal girders foam, the middle strong cross beam foam and the side longitudinal girders foam respectively, and the vacuum introduction system is arranged. After the completion, vacuum glue injection is performed, and the glue is cured at room temperature after the completion of the glue injection; 305. Install the longitudinal foam of the deck on the bottom plate between two adjacent transverse foams, lay the tiles on the longitudinal foam of the deck according to the ply design, arrange the vacuum introduction system, and after completion, vacuum glue injection is performed, and the glue is cured at room temperature; 306. Demolding.

3. The method for forming a composite material cabin section according to claim 1, characterized in that: Step 4 specifically includes the following steps:

401. Lay the outer panel skin in the female mold according to the layer design. After the laying is completed, arrange the vacuum introduction system, vacuum inject glue after completion, and cure at room temperature after the injection of glue; 402. Install a number of bottom positioning longitudinal foams on the bottom and side of the cured outer skin respectively, and lay the side and bottom of the bottom positioning longitudinal foam according to the laying design. During the laying process, the fabric interfaces need to be overlapped and the overlap positions need to be staggered. After the laying is completed, arrange the vacuum introduction system, and after the completion, perform vacuum glue injection. After the glue injection is completed, cure at room temperature; 403. Install the vertically arranged first longitudinal foam on the bulkhead of the outer panel skin according to the designed position, complete the individual paving on each first longitudinal foam according to the ply design, arrange the vacuum introduction system, perform vacuum glue injection after completion, and cure at room temperature after glue injection; 404. Install the second longitudinal foam, the third longitudinal foam and the horizontal transverse foam which are arranged vertically and have a thickness greater than the first longitudinal foam on the bulkhead between the longitudinal foams at the set position. The thickness of the second longitudinal foam, the third longitudinal foam and the transverse foam are the same. The width of the second longitudinal foam is greater than the width of the third longitudinal foam. The transverse foam and various longitudinal foams are crossed. The second longitudinal foam, the third longitudinal foam and the transverse foam are laid as a whole according to the laying design. When laying, the transverse and longitudinal fibers need to be laid alternately and continuously. After the laying is completed, the vacuum introduction system is arranged, and vacuum glue injection is carried out. After the glue injection is completed, it is cured at room temperature; 405. Install a number of ship bottom longitudinal girder foams at set positions on the ship bottom, complete individual paving on each ship bottom longitudinal girder foam according to the ply design, arrange a vacuum introduction system after plying, perform vacuum glue injection after completion, and cure at room temperature after glue injection; 406. Install the middle hardwood embedded part on the bottom between the two bottom longitudinal girder foams. Install several middle crossbeam foams spaced in the front and rear directions on the bottom outside the middle hardwood embedded part. Install two first side keel foams spaced in the left and right directions and stacked together in the height direction on the bottom of the middle hardwood embedded part. The stacked first side keel foams are connected with side keel prefabricated panels. Use the surface of the lower side keel foam as the mold surface for hand lay-up. First, position and install the lower side keel foam and fix it. First, cut a blanking template with the size that just covers the shape. Cut 4 layers of four-axis cloth according to the template. Hand lay-up resin and curing agent are mixed in a ratio of 1000: (3~5) each time. g. When hand lay-up is performed, use a wool roller to dip the resin into the dry cloth and apply it evenly. If bubbles or wrinkles appear between the layers, use a threaded roller to compact them. After hand lay-up is completed, check the surface quality. If there is any lack of glue, add a proper amount of glue. After the hand lay-up is cured, cut and polish the excess fabric along the edge of the foam, and polish the raised parts of the surface to facilitate the subsequent foam installation; the middle crossbeam foam is between the two first side keel foams spaced apart in the left and right directions, and the two bottom longitudinal girder foams are respectively installed with side hardwood embedded parts on the bottom of the ship far away from one end in the left and right directions. The front and rear sides of the side hardwood embedded parts are respectively connected to two second side keel foams stacked together in the height direction connected to the bottom of the ship, and metal embedded parts are connected to the set positions of the first side keel foam and the second side keel foam; 407. Complete the whole surface paving on the connected middle beam foam, the first side keel foam and the middle hardwood embedded parts, the connected side hardwood embedded parts and the second side keel foam respectively according to the ply design, arrange the vacuum introduction system after the ply is completed, perform vacuum glue injection after the completion, and cure at room temperature after the glue injection is completed; 408. A plurality of side strong transverse beam foams are respectively installed on the side of the ship bottom at the side away from each other of the two side ribs, and are spaced apart in the front-rear direction. The side strong transverse beam foam is installed on the side at one end away from the corresponding side rib in the left-right direction. The foam is laid on each side strong transverse beam foam according to the laying design. After the laying is completed, a vacuum introduction system is arranged, and vacuum glue injection is performed. After the glue injection is completed, the glue is cured at room temperature.

409. Install the side longitudinal girder foam on the side between two adjacent side transverse beams according to the designed position, and perform hand lay-up on each side longitudinal girder foam according to the lay-up design; 410, demoulding; Among them, when installing each longitudinal foam, use structural adhesive to bond and fix them in sections from bottom to top. When installing the transverse foam, first use the preset lifting wooden blocks to support the transverse foam and then use structural adhesive to bond and fix them.

4. The method for forming a composite material cabin section according to claim 1, characterized in that: The molding methods of step 5 and step 6 are the same, wherein step 5 specifically includes the following steps:

501. Lay the transverse bulkhead skin on the first transverse bulkhead forming male mold according to the layup design. During the layup process, the dry cloth interface is overlapped by 30mm and the overlap interface positions need to be staggered. After the laying is completed, the vacuum introduction system is arranged, and vacuum glue is injected after completion. After the glue injection is completed, it is cured at room temperature; 502. Install a number of parallel transverse bulkhead longitudinal foams on the upper side of the transverse bulkhead skin according to the set position, and lay each transverse bulkhead longitudinal foam separately according to the layup design. After laying, arrange the vacuum introduction system, vacuum glue injection after completion, and cure at room temperature after glue injection; 503. Install high buttress foam on the upper side of the transverse bulkhead skin. The high buttress foam includes a number of longitudinal buttress foams. Transverse buttress foams are fixed on the longitudinal buttress foams. The transverse buttress foams are perpendicular to the longitudinal buttress foams. The longitudinal buttress foams are arranged between two corresponding adjacent transverse bulkhead longitudinal foams. The transverse buttress foams and the transverse bulkhead longitudinal foams intersect. The high buttress foams are laid separately on the transverse bulkhead skin according to the laying design. During the laying process, the dry cloth interface is overlapped by 30mm and the overlap interface positions need to be staggered. After laying, the vacuum introduction system is arranged. After completion, vacuum glue is injected. After the injection, it is cured at room temperature. 504, demoulding; 505. First, the outer contour is cut and polished according to the skin cutting line. According to the structural characteristics of the first transverse bulkhead, the interference points on the left and right sides are divided separately to enable assembly with the hull.

5. The method for forming a composite material cabin section according to claim 2, characterized in that: The laying procedure of step 301 is to first lay the first layer of felt on the upper side of the deck forming male mold, and then perform three cycles of full-surface laying on the first layer of felt. The order of the full-surface laying in each cycle is to use a layer of biaxial cloth [45°, -45°], a layer of biaxial cloth [0°, 90°], a layer of unidirectional cloth 0°, a layer of biaxial cloth [90°, 0°], a layer of biaxial cloth [-45°, 45°] and a layer of biaxial cloth [0°, 90°], and then lay the second layer of felt, and perform two cycles of full-surface laying on the second layer of felt. The order of the laying in each cycle is to use a layer of biaxial cloth [45°, -45°], a layer of biaxial cloth [0° , 90°] biaxial cloth, a layer of 0° unidirectional cloth, a layer of [90°, 0°] biaxial cloth and a layer of [-45°, 45°] biaxial cloth, the thickness of the above paving is 12mm; the paving step of step 302 is to perform 3 cycles of full-surface paving on the basis of step 301, and the paving sequence of each cycle is a layer of [45°, -45°] biaxial cloth, a layer of [0°, 90°] biaxial cloth, a layer of 0° unidirectional cloth, a layer of [90°, 0°] biaxial cloth and a layer of [-45°, 45°] biaxial cloth, and the paving thickness is 7mm; in step 304, respectively, in the middle of the connected Layers are laid on the strong transverse beam foam, the middle longitudinal girder foam and the side longitudinal girder foam respectively, and the laying method is the same, according to the mutual interlacing and overlapping laying, and the overlapping interface position needs to be staggered overlap; the laying step of step 305 is to lay the entire surface on the longitudinal foam of the deck, first lay a layer of [45°, -45°] biaxial cloth, and then perform 2 cycles of full-surface laying on this basis, and the laying order of each cycle is a layer of 0° unidirectional cloth, a layer of [90°, 0°] biaxial cloth, a layer of [-45°, 45°] biaxial cloth, a layer of [45°, -45°] biaxial cloth and a layer of [0°, 90°] biaxial cloth, and then lay a layer of [90°, 0°] biaxial cloth, a layer of [-45°, 45°] biaxial cloth and a layer of felt. On the basis of the felt, the entire surface is laid. The laying order is: a layer of [45°, -45°] biaxial cloth, a layer of [0°, 90°] biaxial cloth, a layer of 0° unidirectional cloth, a layer of [90°, 0°] biaxial cloth, a layer of [-45°, 45°] biaxial cloth, a layer of [45°, -45°] biaxial cloth, a layer of [0°, 90°] biaxial cloth, a layer of 0° unidirectional cloth and a layer of [-45°, 45°] biaxial cloth, and finally a layer of felt. The total laying thickness is 11mm.

6. The method for forming a composite material cabin section according to claim 3, characterized in that: The paving steps of step 401 are as follows: the area where the upper parts of the inner walls at the left and right ends of the female mold are located is area I, the central concave area at the bottom of the female mold is area III, the area where the inner walls of the female mold between areas I and III are located is area II, and the areas where the inner walls at the front and rear ends of the female mold are located correspond to the bulkheads of the outer plate. First, two cycles of paving are performed in the female mold. The laying process of each cycle of paving is to first lay the first layer of felt as a whole, and then perform the first full-surface laying on the first layer of felt. The order of the first full-surface laying is to use a layer of [45°, -45°] biaxial cloth, a layer of [0°, 90°] biaxial cloth, a layer of 0° unidirectional cloth, a layer of [90°, 0°] biaxial cloth and a layer of [-45°, 45°] biaxial cloth. The first single laying is performed at the position of area III, and the order of the first single laying is to use a layer of [45°, -45°] biaxial cloth , a layer of biaxial fabric at [0°, 90°], a layer of unidirectional fabric at 0°, a layer of biaxial fabric at [90°, 0°], a layer of biaxial fabric at [-45°, 45°] and a layer of felt; on the basis of 2 cycles of paving, the first separate paving is carried out at the bulkhead, zone II and zone III. The laying order of the first separate paving is a layer of biaxial fabric at [45°, -45°], a layer of biaxial fabric at [0°, 90°], a layer of unidirectional fabric at 0°, a layer of biaxial fabric at [90°, 0°] and a layer of biaxial fabric at [-45°, 45°]; the paving is continued at the bulkhead and zone III, and the laying order is as follows: a layer of biaxial fabric at [45°, -45°], A layer of biaxial fabric at [0°, 90°], a layer of unidirectional fabric at 0°, a layer of biaxial fabric at [90°, 0°] and a layer of biaxial fabric at [-45°, 45°] are laid for the second whole-surface laying. A layer of felt is laid on the basis of the second whole-surface laying. A second single laying is carried out at the positions of the bulkhead, zone II and zone III. The laying sequence of the second single laying is the same as that of the first single laying. The third whole-surface laying is carried out. The sequence of each whole-surface laying is the same. On the basis of the third whole-surface laying, a fourth whole-surface laying is carried out at the positions of zone I, zone II and zone III. The fourth whole-surface laying includes 2 cycles of laying. The laying sequence of each cycle of laying is one layer of [45°, -45°]. °] biaxial cloth, a layer of biaxial cloth at [0°, 90°], a layer of unidirectional cloth at 0°, a layer of biaxial cloth at [90°, 0°], a layer of biaxial cloth at [-45°, 45°], a layer of biaxial cloth at [45°, -45°], a layer of biaxial cloth at [0°, 90°], a layer of unidirectional cloth at 0°, a layer of biaxial cloth at [90°, 0°] and a layer of biaxial cloth at [-45°, 45°], and a layer of felt is laid between two cycles of laying; plies are interspersed at four positions and the laying is completed at the same time; after the laying is completed, the skin thickness of zone III is 28mm, the skin thickness of zone II is 18mm, the skin thickness of zone I is 13mm, and the bottom plate ply thickness at the bulkhead is 22mm.

7. The method for forming a composite material cabin section according to claim 4, characterized in that: The laying procedure of step 402 is to carry out whole-surface laying on the basis of step 401, firstly carry out 2 cycles of whole-surface laying, and the whole-surface laying sequence of each cycle is one layer of biaxial cloth [45°, -45°], one layer of biaxial cloth [90°, 0°], one layer of unidirectional cloth 0°, one layer of biaxial cloth [90°, 0°] and one layer of biaxial cloth [-45°, 45°]; after 2 cycles of whole-surface laying, lay a layer of felt, and carry out 2 cycles of whole-surface laying on the felt, and finally lay another layer of felt; the skin thickness after laying is 9 mm.

8. The method for forming a composite material cabin section according to claim 7, characterized in that: The laying step of step 403 is to carry out separate laying on each first longitudinal foam of the bulkhead bottom plate, and the laying sequence is to carry out 2 cycles of full-surface laying, and the full-surface laying sequence of each cycle .... After the layer is completed, a layer of felt is laid, and two cycles of full-surface laying are performed on the felt, and finally another layer of felt is laid; the skin thickness after the layering is completed is 9mm, and the flange is 100mm; the laying steps of step 404 are as follows: in step 6, the layers are laid on various types of foams, and the horizontal and vertical fibers are alternately and continuously laid cross-wise on the dry cloth during the layering. Specifically, a layer of [45°, -45°] biaxial cloth is first laid, and two cycles of full-surface laying are performed on this basis, and each cycle of laying The order of the layers is one layer of 0° unidirectional fabric, one layer of [90°, 0°] biaxial fabric, one layer of [-45°, 45°] biaxial fabric, one layer of [45°, -45°] biaxial fabric and one layer of [0°, 90°] biaxial fabric, then one layer of [90°, 0°] biaxial fabric, one layer of [-45°, 45°] biaxial fabric and one layer of felt, and the whole surface is laid on the basis of the felt. The order of the layers is one layer of [4 A layer of biaxial cloth at [5°, -45°], a layer of biaxial cloth at [0°, 90°], a layer of unidirectional cloth at 0°, a layer of biaxial cloth at [90°, 0°], a layer of biaxial cloth at [-45°, 45°], a layer of biaxial cloth at [45°, -45°], a layer of biaxial cloth at [0°, 90°], a layer of unidirectional cloth at 0° and a layer of biaxial cloth at [-45°, 45°], and finally a layer of felt; the layer thickness is 11mm.

9. The method for forming a composite material cabin section according to claim 8, characterized in that: The laying procedure of step 404 is to carry out separate whole-surface laying on each of the longitudinal girder foams of the bottom of the ship, specifically, first carry out 2 cycles of separate whole-surface laying, and the order of separate whole-surface laying in each cycle is one layer of biaxial cloth [45°, -45°], one layer of biaxial cloth [0°, 90°], one layer of unidirectional cloth 0°, one layer of biaxial cloth [90°, 0°] and one layer of biaxial cloth [-45°, 45°]; after 2 cycles of separate whole-surface laying, lay the first layer of felt, carry out 2 cycles of whole-surface laying on the first layer of felt, lay the second layer of felt, carry out 2 cycles of whole-surface laying on the second layer of felt, and finally lay another layer of felt, with a total laying thickness of 15 mm and a flange of 200 mm.

10. The method for forming a composite material cabin section according to claim 9, characterized in that: The laying procedure of step 405 is to carry out separate whole-surface laying on each of the longitudinal girder foams of the bottom of the ship, firstly carry out two cycles of separate whole-surface laying, and the order of separate whole-surface laying in each cycle is one layer of biaxial cloth [45°, -45°], one layer of biaxial cloth [0°, 90°], one layer of unidirectional cloth 0°, one layer of biaxial cloth [90°, 0°] and one layer of biaxial cloth [-45°, 45°]; after two cycles of separate whole-surface laying, lay the first layer of felt, carry out two cycles of whole-surface laying on the first layer of felt, lay the second layer of felt, carry out two cycles of whole-surface laying on the second layer of felt, and finally lay one more layer of felt, with a total laying thickness of 15 mm and a flange of 200 mm.

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