CN112848366A - Composite material cylinder body and shell for ocean detector, preparation method and application - Google Patents
Composite material cylinder body and shell for ocean detector, preparation method and application Download PDFInfo
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- CN112848366A CN112848366A CN201911175957.9A CN201911175957A CN112848366A CN 112848366 A CN112848366 A CN 112848366A CN 201911175957 A CN201911175957 A CN 201911175957A CN 112848366 A CN112848366 A CN 112848366A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/02—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising combinations of reinforcements, e.g. non-specified reinforcements, fibrous reinforcing inserts and fillers, e.g. particulate fillers, incorporated in matrix material, forming one or more layers and with or without non-reinforced or non-filled layers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/02—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising combinations of reinforcements, e.g. non-specified reinforcements, fibrous reinforcing inserts and fillers, e.g. particulate fillers, incorporated in matrix material, forming one or more layers and with or without non-reinforced or non-filled layers
- B29C70/026—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising combinations of reinforcements, e.g. non-specified reinforcements, fibrous reinforcing inserts and fillers, e.g. particulate fillers, incorporated in matrix material, forming one or more layers and with or without non-reinforced or non-filled layers and with one or more layers of pure plastics material, e.g. foam layers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/32—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core on a rotating mould, former or core
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/772—Articles characterised by their shape and not otherwise provided for
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Abstract
The invention provides a composite material barrel for an ocean detector, a shell, a preparation method and application, wherein the composite material barrel for the ocean detector comprises a structural layer, the structural layer comprises a plurality of winding layers which are arranged in a stacking mode from inside to outside, the winding layers are formed by spirally winding fiber materials impregnated with resin glue solution, the winding angles of adjacent winding layers are different, the winding angle of the fiber materials impregnated with the resin glue solution is 10-88 degrees, and filling materials are arranged between the winding layers. The composite material cylinder is used for the ocean detector shell, is light in weight, cannot cause signal shielding, and greatly enhances the energy absorption effect when bearing impact, so that the failure mode of the shell is changed from integral damage to progressive failure when the shell is impacted, and the reliability is greatly improved.
Description
Technical Field
The invention belongs to the technical field of marine equipment, and particularly relates to a composite material cylinder body and a composite material shell for a marine detector, a preparation method and application.
Background
With the continuous development of marine science, countries in the world pay more and more attention to the detection, development and utilization of marine resources. The ocean detector as a modern ocean observation technology has the characteristics of quick and convenient arrangement, convenient signal transmission and the like, and is used for ocean environment monitoring, ocean resource development, ocean scientific research and the like.
At present, most ocean detectors are distributed in a preset area by adopting airplanes, ships or unmanned self-aircrafts. Due to the complexity of the working environment, the ocean detector may bear impact from the outside during transportation, distribution and service, which may cause damage to equipment and loss of data. The buoyancy shell of the ocean detector consists of a cylinder body, an end cover, a connecting bolt, a sealing mechanism and the like, and plays roles of providing positive buoyancy and protecting a detection instrument. At present, the shell of the detector is mostly made of metal materials such as high-strength steel, aluminum alloy, titanium alloy and the like, but the problems of heavy weight, poor impact resistance, signal shielding and the like generally exist, some disclosed technologies adopt a composite material formed by a resin matrix material and a glass fiber reinforced material as a material of the shell of the ocean detector, Chinese patent document CN109571995A discloses a method for manufacturing a pressure-bearing cylinder, a pressure-bearing cylinder and a pressure-bearing shell of an emergency floating system, in the technology, a carbon fiber composite material impregnated with epoxy resin is used for manufacturing the shell for the ocean emergency floating system by a winding method, the shell solves the problems of heavy weight and signal shielding of the metal material shell, but the shell can bear the impact of the detector when being distributed in water, bear the impact of ships, the impact of waves and reefs when being used, and has low impact resistance for the composite material shell with a single structure, impact energy cannot be effectively absorbed when collision occurs, and instrument equipment and information data in the shell are effectively protected.
Disclosure of Invention
The composite material cylinder body is used for the ocean detector shell, is light in weight, does not cause signal shielding, greatly enhances the energy absorption effect when bearing impact, enables the failure mode of the shell body when being impacted to be changed from integral damage to progressive failure, and greatly improves the reliability.
In order to solve the problems, the invention provides a composite material barrel for an ocean detector, which comprises a structural layer, wherein the structural layer comprises a plurality of winding layers which are arranged in a stacking mode from inside to outside, the winding layers are formed by spirally winding fiber materials impregnated with resin glue solution, the winding angles of the adjacent winding layers are different, the winding angle of the fiber materials impregnated with the resin glue solution is 10-88 degrees, and filling materials are arranged between the winding layers.
The composite material cylinder is formed by spirally winding the composite material which takes the resin material as the matrix material and takes the fiber material as the reinforcing material, the composite material has the characteristics of light weight and high strength, and the composite material cylinder is taken as the ocean detector, so that the problems of heavy weight and signal shielding of the metal material cylinder are solved; the structural layer of the composite material barrel is formed by stacking a plurality of winding layers with different winding angles to form a multi-layer structure shell, when impact load is met, compared with the composite material barrel formed by a single spiral angle, the composite material barrel can be damaged layer by layer, the failure mode is changed from integral damage to progressive failure, so that impact energy is absorbed, instrument equipment and a ship body in the barrel are prevented from being damaged, the winding layers with different winding angles are wound in a staggered mode and stacked layer by layer, the strength of the composite material barrel in different stress directions is enhanced, and the integral impact strength of the barrel is remarkably improved; the filling material is arranged between the winding layers, so that the impact force between the winding layers can be further buffered, the energy absorption effect is improved, and the impact resistance is enhanced.
It should be noted that the winding angle refers to an included angle between the winding direction of the fiber material and the axial direction of the cylinder.
Preferably, each wound ply has a thickness of 0.3 to 6mm, and the wound ply has a total of 5 to 15 layers.
Further preferably, the thickness of each wound ply is 0.4-4.3mm, and the wound plies total 8-10 layers.
Preferably, the single-layer thickness of the fiber material impregnated with the resin glue solution is 0.15-0.5mm, and each winding and laying layer is formed by winding 2-12 layers of the fiber material impregnated with the resin glue solution.
Preferably, the fiber material is glass fiber or carbon fiber, and the resin glue solution is epoxy resin, vinyl resin or polyester resin.
Preferably, the filling material is foam or rubber, the thickness of the filling material being 0.12-0.2 mm.
Preferably, still include the functional layer, the surface of structural layer is located to the functional layer, and the functional layer is macromolecular material, specifically can be polyurethane or polyurea, plays the guard action to the structural layer of combined material barrel.
Further, the thickness of the functional layer is preferably 0.5 to 3 mm.
The composite material shell comprises the composite material cylinder body for the ocean detector, and further comprises an upper end cover and a lower end cover which are connected with two ends of the composite material cylinder body.
Preferably, the upper end cover and the lower end cover are made of composite materials which take resin materials as matrix materials and take fiber materials as reinforcing materials. The composite material has the characteristics of light weight and high strength, and the weight of the composite material can be reduced on the basis of ensuring the strength of the composite material shell. Specifically, the fiber material may be glass fiber or aramid fiber, and the resin material may be epoxy resin, vinyl resin, or polyester resin.
Preferably, the upper end cover and the lower end cover are connected with the composite material cylinder body through connecting bolts.
Preferably, sealing rings are arranged at the joints of the upper end cover, the lower end cover and the composite material cylinder. The sealing ring mainly plays a role in hydraulic sealing, specifically is an O-shaped sealing ring, can be made of silicon rubber, fluororubber or ethylene propylene rubber, and plays a role in sealing by compressing and deforming an interface between the extrusion blanking cover and the pressure-bearing cylinder body.
Still another object of the present invention is to provide a method for preparing the above composite material cylinder for a sea detector, comprising the steps of: sequentially winding fiber materials impregnated with resin glue solution on the surface of the mold according to a selected winding angle to form a winding layer; filling materials between the selected winding layers to obtain a composite material cylinder structure; and curing the composite material cylinder structure at 60-190 ℃ for 8-24h to obtain the composite material cylinder for the ocean detector.
Preferably, when the fiber material impregnated with the resin glue solution is wound, a prestress of 150-500MPa is applied to the fiber material impregnated with the resin glue solution.
Preferably, the curing process of the composite material cylinder structure adopts gradient heating curing, and the steps of the gradient heating curing are as follows in sequence: curing for 1-3h at 60-80 ℃; curing at the temperature of 120-140 ℃ for 3-5 h; curing at 170-190 ℃ for 5-7 h.
Preferably, the method for preparing the composite material cylinder for the ocean detector comprises the following steps:
s1, manufacturing a mold;
s2, sequentially winding the fiber material impregnated with the resin glue solution on the surface of the mold according to the selected winding angle and the selected winding layer number to form a plurality of winding layers;
s3, according to the selected setting position of the filling material, before the next layer of winding layer of the filling material is formed by winding, the filling material is paved on the previous layer of winding layer of the filling material to form a filling layer, and then the next layer of winding layer is formed by winding on the filling layer;
s4, repeating the steps S2 and S3 until the selected number of winding and layering layers is reached, and obtaining a composite material barrel structure layer material;
s5, sequentially curing the composite material cylinder structure layer material at 60-80 ℃ for 1-3 h; curing at the temperature of 120-140 ℃ for 3-5 h; curing at 170-190 ℃ for 5-7h, and demolding after curing to obtain a composite material cylinder structure layer;
s6, processing the outer surface, the front end surface, the rear end surface and the connecting matching surface of the composite material cylinder structure layer;
and S7, spraying polyurethane or polyurea on the surface of the structural layer of the composite material cylinder to form a functional layer, so as to obtain the composite material cylinder.
It is a further object of the present invention to provide the use of the composite cylinder for a sea finder as described above in a sea finder.
Compared with the prior art, the invention has the following beneficial effects:
1. the composite material barrel for the ocean detector is formed by spirally winding the composite material which takes the resin material as the base material and takes the fiber material as the reinforcing material, the composite material has the characteristics of light weight and high strength, and the composite material barrel is taken as the ocean detector, so that the problems of heavy weight, signal shielding and easy corrosion of the metal material barrel are solved under the condition of ensuring that the material has higher impact strength;
2. according to the composite material barrel for the ocean detector, the structural layer is formed by stacking the plurality of winding layers with different winding angles to form the multi-layer structure shell, when impact load is met, compared with the composite material barrel formed by a single spiral angle, the multi-layer structure barrel can be damaged layer by layer, the failure mode is changed from integral damage to progressive failure, so that impact energy is absorbed, instrument equipment and a ship body in the barrel are prevented from being damaged, the winding layers with different winding angles are wound in a staggered mode and stacked layer by layer, the strength of the composite material barrel in different stress directions is enhanced, and the integral impact strength of the barrel is remarkably improved; the filling material is arranged between the winding layers, so that the impact force between the winding layers can be further buffered, the energy absorption effect is improved, and the impact resistance is enhanced;
3. the composite material shell for the ocean detector is composed of the composite material cylinder body, the upper end cover and the lower end cover, wherein the composite material cylinder body and the upper end cover and the lower end cover are both made of light composite materials.
Drawings
FIG. 1 is a cross-sectional view of a structural layer of a composite cylinder for a marine probe according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a composite shell for a sea detector according to an embodiment of the present invention.
Wherein: 1-structural layer; 11-winding a ply; 12-a filler material; 2-a functional layer; 3-upper end cover; 4-lower end cap.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments of the present invention, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the following examples and comparative examples, the diameter of the cylinder of the ocean probe protective casing is 1250mm, and the height thereof is 700 mm. In the examples below, epoxy E51 was obtained from Nantong Xinchen composite, Inc.; the curing agent is tetraethylenepentamine which is purchased from Beijing Yili fine chemicals GmbH; high strength glass fibers, designated S-2, were purchased from Nanjing glass fiber research institute; vinyl resins were purchased from Shanghai Huachang chemical Polymer Co., Ltd; the high-strength carbon fibers are purchased from Zhongshenying hawk carbon fiber Co., Ltd; the low density foam material is a polyurethane foam available from basf (china) ltd; rubber balls were purchased from dupont (china) ltd.
Example one
The composite material cylinder for the ocean detector, as shown in fig. 1-2, includes a structural layer 1 and a functional layer 2 disposed on an outer surface of the structural layer 1. The structural layer 1 comprises a plurality of winding layers 11 with different winding angles, which are sequentially stacked from inside to outside, the winding layers 11 are formed by spirally winding fiber materials impregnated with resin glue solution, and filling materials 12 are further arranged between the winding layers. Specifically, the resin glue solution is prepared from epoxy resin E51 and a curing agent according to the weight ratio of 100: 20; the fiber material is high-strength glass fiber with the brand number of S-2; the functional layer 2 is a polyurea coating, and the thickness of the polyurea coating is 1 mm; the filler material 12 is a low density foam material.
Specifically, in the composite material cylinder for the ocean detector of the present embodiment, the winding angle, the winding layer thickness, the fiber thickness in each winding layer, the number of winding layers, and the prestress applied during winding of each winding layer are as follows in table 1 (the winding layers are calculated in the order from inside to outside):
TABLE 1
The preparation method of the composite material cylinder for the ocean detector, which is described in the embodiment, specifically comprises the following steps:
s1, manufacturing a mold, namely manufacturing the mold by using steel (such as 45 steel or 30CrMnSi) or aluminum material (such as 6061 or 7075), according to the structural size of a cylinder to be molded, wherein the mold is used as a support for molding the composite cylinder, the structural size of the mold is consistent with the size of an inner cavity of the composite cylinder, and then performing surface treatment on the mold by using demolding materials such as silicone grease, lubricant and the like;
s2, sequentially winding the fiber material impregnated with the resin glue solution on the surface of the mold according to the selected winding angle and the selected winding layer number to form a plurality of winding layers;
s3, according to the selected setting position of the filling material, before the next layer of winding layer of the filling material is formed by winding, the filling material is paved on the previous layer of winding layer of the filling material to form a filling layer, and then the next layer of winding layer is formed by winding on the filling layer;
s4, repeating the steps S2 and S3 until the selected number of winding and layering layers is reached, and obtaining a composite material barrel structure layer material;
s5, placing the composite material cylinder structure layer material in a high-temperature curing furnace, heating the composite material cylinder structure layer material to 70 ℃ from room temperature, and curing for 2 hours; then heating to 130 ℃, and curing for 4 h; finally heating to 180 ℃ for curing for 6h, wherein the heating rate is 0.5-2 ℃/min, applying ejection force and stretching traction force to the mold by using a demolding machine after curing is finished, and demolding the mold from the interior of the composite material to obtain a composite material cylinder structure layer;
s6, processing the outer surface, the front end surface, the rear end surface and the connecting matching surface of the composite material cylinder structure layer by adopting equipment such as a numerical control lathe, a milling machine and the like;
and S7, spraying polyurethane or polyurea on the surface of the structural layer of the composite material cylinder to form a functional layer, so as to obtain the composite material cylinder.
Example two
The composite material shell for the ocean detector comprises a composite material barrel in the first embodiment, and further comprises an upper end cover 3 and a lower end cover 4 which are connected with two ends of the composite material barrel, wherein the upper end cover 3 and the lower end cover 4 are connected with the composite material barrel through connecting bolts, sealing rings are arranged at the joints of the upper end cover 3 and the lower end cover 4 and the composite material barrel, the upper end cover and the lower end cover are made of glass fiber composite materials, reinforcing materials are glass fibers, the brand is s-2, and base materials are epoxy resins. As shown in figure 2, detection and signal equipment such as an antenna and an antenna tower of the ocean detector are installed on the composite material shell for the ocean detector, the composite material shell can play a protective role when the ocean detector is arranged and works, when impact load is met, the composite material barrel can be damaged layer by layer, the failure mode is changed from integral damage to progressive failure, impact energy is absorbed, and a detection device and a signal device which are installed on the shell are prevented from being damaged.
EXAMPLE III
The basic structure, the material, and the preparation method of the composite material cylinder for the ocean probe in this embodiment are the same as those in the first embodiment, except that, in the composite material cylinder for the ocean probe in this embodiment, the winding angle of each winding layer, the thickness of the fiber in each winding layer, the number of winding layers, and the prestress applied during winding are as follows in table 2 (the winding layers are calculated in the order from inside to outside):
TABLE 2
Example four
The basic structure, the material, and the preparation method of the composite material cylinder for the ocean probe in this embodiment are the same as those in the first embodiment, except that, in the composite material cylinder for the ocean probe in this embodiment, the winding angle of each winding layer, the thickness of the fiber in each winding layer, the number of winding layers, and the prestress applied during winding are as follows in table 3 (the winding layers are calculated in the order from inside to outside):
TABLE 3
EXAMPLE five
The basic structure, material and preparation method of the composite material cylinder for the ocean detector in this embodiment are the same as those in the first embodiment, except that, in the composite material cylinder for the ocean detector in this embodiment, the winding angle of each winding layer, the thickness of the winding layer, the thickness of fibers in each winding layer, the number of winding layers and the prestress applied during winding are as follows in table 4 (the winding layers are calculated from inside to outside):
TABLE 4
EXAMPLE six
The basic structure, material and preparation method of the composite material cylinder for the ocean detector in this embodiment are the same as those in the first embodiment, except that, in the composite material cylinder for the ocean detector in this embodiment, the winding angle of each winding layer, the thickness of the winding layer, the thickness of fibers in each winding layer, the number of winding layers and the prestress applied during winding are as follows in table 5 (the winding layers are calculated from inside to outside):
TABLE 5
| Winding and laying layer | Winding angle | Single layer thickness | Number of winding layers | Thickness of the mat | Fibre prestressing |
| First layer | 85° | 0.15 |
2 layers of | 0.3mm | 230MPa |
| Second layer | 25° | 0.3 |
4 layers of | 1.2mm | 250MPa |
| Third layer | 75° | 0.15 |
2 layers of | 0.3mm | 330MPa |
| The fourth layer | 15° | 0.3 |
4 layers of | 1.2mm | 350MPa |
| The fifth layer | 77° | 0.5 |
2 layers of | 1.0mm | 330MPa |
| Filling layer | 0.12mm | ||||
| The sixth layer | 22° | 0.35 |
2 layers of | 0.7mm | 350MPa |
| The seventh layer | 88° | 0.15 |
2 layers of | 0.3mm | 280MPa |
| The eighth layer | 35° | 0.3 |
4 layers of | 1.2mm | 320MPa |
| The ninth layer | 85° | 0.35 |
2 layers of | 0.7mm | 330MPa |
| The tenth layer | 25° | 0.35 |
2 layers of | 0.7mm | 330MPa |
| Filling layer | 0.15mm | ||||
| The eleventh layer | 85° | 0.15 |
2 layers of | 0.3mm | 300MPa |
| The twelfth layer | 45° | 0.25 |
4 layers of | 1.0mm | 350MPa |
| The thirteenth layer | 83° | 0.15 |
2 layers of | 0.3mm | 330MPa |
| Fourteenth layer | 22° | 0.25 |
4 layers of | 1.0mm | 420MPa |
| The fifteenth layer | 88° | 0.25 |
4 layers of | 1.0mm | 330MPa |
EXAMPLE seven
The composite material cylinder for the ocean detector in the embodiment has the same structure as that in the first embodiment, except that the resin glue solution wound and laid is prepared from vinyl resin and a curing agent according to the weight ratio of 100:20 parts; the fiber material is high-strength carbon fiber; the functional layer is a polyurea coating, and the thickness of the polyurea coating is 0.5 mm; the filling material is rubber balls.
Example eight
The composite material cylinder for the ocean detector in the embodiment has the same structure as that in the first embodiment, except that the resin glue solution wound and laid is prepared from vinyl resin and a curing agent according to the weight ratio of 100:40 parts; the fiber material is high-strength carbon fiber; the functional layer is a polyurethane coating, and the thickness of the polyurethane coating is 3 mm; the filling material is rubber balls.
Example nine
The composite material cylinder for the ocean detector in the embodiment has the same structure, material and preparation method as those in the first embodiment, except that the composite material cylinder structure is cured at a constant temperature, the curing temperature is 120 ℃, and the curing time is 12 hours.
Comparative example 1
The cylinder of the ocean detector protection shell of the comparison example is made of aluminum alloy with the wall thickness of 20 mm.
Comparative example No. two
The cylinder of the ocean probe protection shell of the comparison example is a cylinder made of stainless steel with the wall thickness of 12 mm.
Comparative example No. three
The cylinder of the ocean detector protection shell of the comparison example is a cylinder made of high-strength steel with the wall thickness of 8 mm.
Comparative example No. four
The composite material cylinder of the comparative example uses the same materials and preparation method as those in the first example, except that the preparation method of the structural layer of the cylinder in the first example is that a single-layer fiber material with thickness of 0.2mm and impregnated with resin glue solution is wound around a die by 56 layers at a winding angle of 85 degrees, and the total thickness of the prepared composite material layer is 11.2 mm.
Composite material cylinder structure and performance test
The weight, corrosion resistance, impact strength and failure mode of the composite barrels of the examples and comparative examples were measured, and the results are shown in table 6 below. The corrosion resistance test method comprises the following steps: soaking the substrate for 72 hours by using artificial seawater and observing the surface corrosion condition; the impact performance test method comprises the following steps: the test was carried out by a weight tapping method, and the impact strength of the material at the time of breakage was measured.
According to the test result, compared with the metal material cylinder in the prior art, the composite material cylinder for the ocean detector has the advantages that the quality is greatly reduced and the corrosion resistance is greatly improved on the premise of ensuring certain impact strength; compared with the cylinder integrally formed by winding the composite material fibers at the same spiral winding angle in the fourth comparative example, the composite material cylinder has the advantages that the impact strength is obviously enhanced, the failure mode is changed from integral damage to layer-by-layer failure, and only the surface layer or a plurality of layers of fibers are broken during the impact strength test, so that the composite material cylinder has higher impact strength, the energy absorption effect is greatly improved, and the composite material cylinder can play a role in buffering and protecting instruments in the cylinder and on the cylinder when being impacted; compared with the first, third and fourth examples, the impact strength of the fifth and sixth examples is slightly poor, so that the thickness of each winding layer of the composite material cylinder is preferably 0.4-4.3mm, and the winding layers are preferably 8-10 layers.
TABLE 6
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (10)
1. A composite cylinder for a marine probe, comprising: the fiber material winding and laying structure comprises a structure layer, wherein the structure layer comprises a plurality of winding and laying layers which are stacked from inside to outside, the winding and laying layers are formed by spirally winding fiber materials impregnated with resin glue solution, the winding angles of the adjacent winding and laying layers are different, the winding angle of the fiber materials impregnated with the resin glue solution is 10-88 degrees, and filling materials are further arranged between the winding and laying layers.
2. The composite cylinder for a marine probe of claim 1, wherein: the thickness of each winding layer is 0.3-6mm, and the winding layers are 5-15 layers.
3. The composite cylinder for a marine probe of claim 1, wherein: the single-layer thickness of the fiber material impregnated with the resin glue solution is 0.15-0.5mm, and each winding and paving layer is formed by winding 2-12 layers of the fiber material impregnated with the resin glue solution.
4. The composite cylinder for a marine probe of claim 1, wherein: the filling material is foam or rubber, and the thickness of the filling material is 0.12-0.2 mm.
5. The composite cylinder for ocean finder according to claim 1, further comprising a functional layer disposed on an outer surface of the structural layer, wherein the functional layer is polyurethane or polyurea.
6. A composite shell for a marine probe, comprising: a composite cylinder for a sea probe comprising a cylinder according to any one of claims 1 to 5, further comprising an upper end cap and a lower end cap connected to both ends of the composite cylinder.
7. A method of making a composite cylinder for a marine probe according to any one of claims 1 to 5, comprising the steps of: sequentially winding the fiber material impregnated with the resin glue solution on the surface of the mould according to a selected winding angle to form a winding layer; filling the filling material between the selected winding layers to obtain a composite material cylinder structure; and curing the composite material cylinder structure at 60-190 ℃ for 8-24h to obtain the composite material cylinder for the ocean detector.
8. The method of making a composite cylinder for a marine probe according to claim 7, wherein: and when the fiber material impregnated with the resin glue solution is wound, applying prestress of 150-500MPa to the fiber material impregnated with the resin glue solution.
9. The method of making a composite cylinder for a marine probe according to claim 7, wherein: the curing process of the composite material cylinder structure adopts gradient heating curing, and the steps of the gradient heating curing are as follows in sequence: curing for 1-3h at 60-80 ℃; curing at the temperature of 120-140 ℃ for 3-5 h; curing at 170-190 ℃ for 5-7 h.
10. Use of a composite cylinder for a sea probe according to any one of claims 1-5 in a sea probe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911175957.9A CN112848366B (en) | 2019-11-26 | 2019-11-26 | Composite material cylinder body and shell for ocean detector, preparation method and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911175957.9A CN112848366B (en) | 2019-11-26 | 2019-11-26 | Composite material cylinder body and shell for ocean detector, preparation method and application |
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| CN113650374A (en) * | 2021-09-06 | 2021-11-16 | 北京理工大学 | Ship side flexible anti-fragment penetration layer and manufacturing method thereof |
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| 耿沛: "《变缠绕角螺旋缠绕厚壁筒的结构分析》", 《变缠绕角纤维螺旋缠绕结构的承载能力分析及最优化设计》 * |
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| CN113650374A (en) * | 2021-09-06 | 2021-11-16 | 北京理工大学 | Ship side flexible anti-fragment penetration layer and manufacturing method thereof |
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