CN112848366B - 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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- CN112848366B CN112848366B CN201911175957.9A CN201911175957A CN112848366B CN 112848366 B CN112848366 B CN 112848366B CN 201911175957 A CN201911175957 A CN 201911175957A CN 112848366 B CN112848366 B CN 112848366B
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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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- Engineering & Computer Science (AREA)
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Abstract
The invention provides a composite material cylinder body for a marine detector, a shell, a preparation method and application, wherein the composite material cylinder body for the marine detector comprises a structural layer, the structural layer comprises a plurality of winding layers which are overlapped 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 degrees to 88 degrees, and filling materials are further arranged between the winding layers. The composite material cylinder is used for the ocean detector shell, is light in weight, does not cause signal shielding, greatly enhances the energy absorption effect when being impacted, changes the failure mode from integral damage to gradual failure when the shell is impacted, and greatly improves the reliability.
Description
Technical Field
The invention belongs to the technical field of marine equipment, and particularly relates to a composite material cylinder body and shell for a marine detector, a preparation method and application.
Background
With the continuous development of ocean science, the world increasingly pays attention to the detection, development and utilization of ocean resources. As a modern ocean observation technology, the ocean detector 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.
Currently, ocean detectors are mostly deployed in predetermined areas by using airplanes, ships or unmanned autopilots. Due to the complexity of the working environment, the ocean detector can bear the impact from the outside in the transportation, arrangement and service processes, so that equipment and devices are damaged and data are lost. 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 detecting instrument. At present, the detector shell is mostly made of metal materials such as high-strength steel, aluminum alloy and titanium alloy, but the problems of large weight, poor impact resistance, signal shielding and the like generally exist, and a composite material formed by a resin matrix material and a glass fiber reinforced material is used as a material of the marine detector shell in some disclosed technologies, and Chinese patent document CN109571995A discloses a pressure-bearing cylinder manufacturing method, a pressure-bearing cylinder and a pressure-bearing shell of an emergency floating system.
Disclosure of Invention
The invention solves the technical problems of providing a composite material cylinder body for a marine detector, a shell, a preparation method and application, wherein the composite material cylinder body is used for the shell of the marine detector, has light weight, does not cause signal shielding, greatly enhances the energy absorption effect when bearing impact, changes the failure mode of the shell when bearing impact into gradual failure from integral failure, and greatly improves the reliability.
In order to solve the problems, the invention provides a composite material cylinder for a marine detector, which comprises a structural layer, wherein the structural layer comprises a plurality of winding layers which are overlapped from inside to outside, each winding layer is 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 degrees to 88 degrees, and filling materials are further arranged between the winding layers.
The composite material cylinder is formed by spiral winding by taking the resin material as a matrix material and taking the fiber material as a reinforcing material, has the characteristics of light weight and high strength, and solves the problems of heavy weight and signal shielding of the metal material cylinder when being used as a marine detector; the structural layer of the composite material cylinder is formed into a multi-layer structural shell by stacking a plurality of winding layers with different winding angles, when impact load is met, compared with a composite material cylinder formed by a single spiral angle, the composite material cylinder can be damaged layer by layer, and the failure mode is changed from integral damage to gradual failure, so that impact energy is absorbed, instruments and equipment in the cylinder and a ship body are prevented from being damaged, the winding layers with different winding angles are wound in a staggered manner, and the strength of the composite material cylinder in different stress directions is enhanced layer by layer, and the integral impact strength of the cylinder is obviously 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.
The winding angle refers to an angle between the winding direction of the fiber material and the axial direction of the cylinder.
Preferably, each wrapped ply has a thickness of 0.3-6mm and a total of 5-15 layers.
Further preferably, each wrapped ply has a thickness of 0.4-4.3mm and a total of 8-10 layers.
Preferably, the thickness of the single layer of the fibrous material impregnated with the resin glue is 0.15-0.5mm, and each wound ply is formed by winding 2-12 layers of the fibrous material impregnated with the resin glue.
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, and the thickness of the filling material is 0.12-0.2mm.
Preferably, the composite material cylinder further comprises a functional layer, wherein the functional layer is arranged on the outer surface of the structural layer, is made of a high polymer material, and can be polyurethane or polyurea specifically, and plays a role in protecting the structural layer of the composite material cylinder.
Further, the thickness of the functional layer is preferably 0.5 to 3mm.
Another object of the present invention is to provide a composite shell for a marine detector, comprising the composite cylinder for a marine detector, as described above, and further comprising an upper end cap and a lower end cap connected to both ends of the composite cylinder.
Preferably, the upper end cover and the lower end cover are made of composite materials which take resin materials as matrix materials and 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, in particular to an O-shaped sealing ring, the sealing ring can be made of silicon rubber, fluororubber or ethylene propylene rubber, and the sealing ring plays a role in sealing through the compression deformation of an interface of the extrusion blanking cover and the pressure-bearing cylinder body.
It is a further object of the present invention to provide a method of preparing a composite cylinder as described above for a marine probe, comprising the steps of: sequentially winding fiber materials impregnated with resin glue solution on the surface of a die according to a selected winding angle to form a winding layer; filling a 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 8-24 hours to obtain the composite material cylinder for the ocean detector.
Preferably, when winding the fiber material impregnated with the resin dope, a prestress of 150 to 500MPa is applied to the fiber material impregnated with the resin dope.
Preferably, the curing process of the composite material cylinder structure adopts gradient heating curing, and the steps of gradient heating curing are as follows: solidifying at 60-80 deg.c for 1-3 hr; solidifying at 120-140 deg.c for 3-5 hr; curing at 170-190 deg.c for 5-7 hr.
Preferably, the method for preparing the composite material cylinder for the ocean detector comprises the following steps:
s1, manufacturing a die;
s2, winding the fiber material impregnated with the resin glue solution onto the surface of a die in sequence according to the selected winding angle and the selected winding layer number to form a plurality of winding layers;
s3, paving a filling material on the upper winding layer of the filling material according to the selected filling material setting position before winding to form the next winding layer of the filling material, forming a filling layer, and then winding on the filling layer to form the next winding layer;
s4, repeating the steps S2 and S3 until the number of the winding layering layers reaches the selected number, and obtaining the composite material barrel structure layer material;
s5, curing the composite material barrel structural layer material for 1-3 hours at 60-80 ℃; solidifying at 120-140 deg.c for 3-5 hr; curing for 5-7h at 170-190 ℃, and demolding after curing is finished to obtain a composite material barrel structural layer;
s6, processing the appearance surface, the front end surface, the rear end surface and the connecting matching surface of the composite material barrel structural layer;
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 a composite cylinder as described above for a marine detector in a marine detector.
Compared with the prior art, the invention has the following beneficial effects:
1. the composite material cylinder for the ocean detector is formed by spiral winding by taking the resin material as a matrix material and taking the fiber material as a reinforcing material, has the characteristics of light weight and high strength, and solves the problems of high weight, signal shielding and easy corrosion of the metal material cylinder under the condition of ensuring that the material has high impact strength;
2. according to the composite material cylinder for the ocean detector, the structural layer is formed by stacking the winding layers with different winding angles, so that when impact load is met, compared with a composite material cylinder formed by a single spiral angle, the composite material cylinder can be damaged layer by layer, the failure mode is changed from integral damage to gradual failure, so that impact energy is absorbed, instruments and equipment in the cylinder and a ship body are prevented from being damaged, the winding layers with different winding angles are wound in a staggered manner, the strength of the composite material cylinder in different stress directions is enhanced, and the integral impact strength of the cylinder is remarkably improved; the filling material is further 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 and the upper end cover and the lower end cover, both of which are made of light composite materials, and is used for the shell of the ocean detector, has stronger impact strength, small weight, difficult corrosion and no signal shielding problem, and can play a good role in protecting instruments of the ocean detector.
Drawings
FIG. 1 is a cross-sectional view of the structural layers of a composite cylinder for a marine detector according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a composite housing for a marine detector according to an embodiment of the present invention.
Wherein: 1-a structural layer; 11-winding and layering; 12-filling material; 2-a functional layer; 3-an upper end cap; 4-lower end cap.
Detailed Description
The technical solutions of the present invention will be clearly and completely described in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In each of the following examples and comparative examples, the cylindrical body of the marine probe protection housing had a diameter of 1250mm and a height of 700mm. In the examples below, epoxy E51 was purchased from Nantong Star Chemie materials Co., ltd; the curing agent is tetraethylenepentamine, purchased from Beijing Yili Fine chemical Co., ltd; the high strength glass fiber with the brand number of S-2 is purchased from Nanjing glass fiber institute; vinyl resin was purchased from Shanghai Huachang chemical polymers limited; high strength carbon fiber was purchased from the midrange eagle carbon fiber company, inc; the low density foam material is polyurethane foam, available from basf (china) limited; rubber balls were purchased from dupont (china) limited.
Example 1
The composite material cylinder for a marine detector according to this embodiment, 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, wherein 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 parts; the fiber material is high-strength glass fiber with the mark of S-2; the functional layer 2 is a polyurea coating, and the thickness of the polyurea coating is 1mm; the filler material 12 is a low density foam material.
Specifically, in the composite cylinder for a marine probe of the present embodiment, the winding angle, the winding mat thickness, the fiber thickness in each winding mat, the number of winding layers, and the prestress applied at the time of winding of each winding mat are as shown in table 1 below (the winding mats are counted in order from inside to outside):
TABLE 1
The preparation method of the composite material cylinder for the ocean detector, which is provided by the embodiment, comprises the following specific steps:
s1, manufacturing a die, namely manufacturing the die according to the structural size of a cylinder to be formed by using steel (such as No. 45 steel or 30 CrMnSi) or aluminum materials (such as 6061 or 7075), wherein the structural size of the die is consistent with the size of an inner cavity of the composite cylinder by taking the die as a support for forming the composite cylinder, and performing surface treatment on the die by using a demolding material such as silicone grease, a lubricant and the like;
s2, winding the fiber material impregnated with the resin glue solution onto the surface of a die in sequence according to the selected winding angle and the selected winding layer number to form a plurality of winding layers;
s3, paving a filling material on the upper winding layer of the filling material according to the selected filling material setting position before winding to form the next winding layer of the filling material, forming a filling layer, and then winding on the filling layer to form the next winding layer;
s4, repeating the steps S2 and S3 until the number of the winding layering layers reaches the selected number, and obtaining the composite material barrel structure layer material;
s5, placing the composite material barrel structural layer material in a high-temperature curing furnace, and heating to 70 ℃ from room temperature and curing for 2 hours; then heating to 130 ℃ and curing for 4 hours; finally, heating to 180 ℃ for curing for 6 hours, wherein the heating rate is 0.5-2 ℃/min, and after curing, applying ejection force and stretching traction force to the mold by using a mold stripper, and removing the mold from the interior of the composite material to obtain a composite material barrel structural layer;
s6, machining the profile surface, the front end surface, the rear end surface and the connecting matching surface of the composite material cylinder structural layer by adopting equipment such as a numerical control lathe, a milling machine and the like;
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 connecting positions 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, the reinforcing materials are glass fibers, the marks are s-2, and the matrix materials are epoxy resin. As shown in fig. 2, the detection and signal equipment such as an antenna, an antenna tower and the like of the marine detector is arranged on the composite material shell for the marine detector, the composite material shell can play a role in protection when the marine detector is arranged and works, the composite material shell can be damaged layer by layer when encountering impact load, the failure mode is changed from integral damage to gradual failure, impact energy is absorbed, and a detection device and a signal device arranged on the shell are prevented from being damaged.
Example III
The basic structure, materials and preparation method of the composite material cylinder for a marine detector according to this embodiment are the same as those in the first embodiment, except that in the composite material cylinder for a marine detector of this embodiment, the winding angle, winding layer thickness, fiber thickness in each winding layer, winding layer number and prestress applied during winding are as shown in table 2 below (winding layers are calculated in order from inside to outside):
TABLE 2
Example IV
The basic structure, materials and preparation method of the composite material cylinder for a marine detector according to this embodiment are the same as those in the first embodiment, except that in the composite material cylinder for a marine detector of this embodiment, the winding angle, winding layer thickness, fiber thickness in each winding layer, winding layer number and prestress applied during winding are as shown in table 3 below (winding layers are calculated in order from inside to outside):
TABLE 3 Table 3
Example five
The basic structure, materials and preparation method of the composite material cylinder for a marine detector according to this embodiment are the same as those in the first embodiment, except that in the composite material cylinder for a marine detector of this embodiment, the winding angle, winding layer thickness, fiber thickness in each winding layer, winding layer number and prestress applied during winding are as shown in table 4 below (winding layers are calculated in order from inside to outside):
TABLE 4 Table 4
Example six
The basic structure, materials and preparation method of the composite material cylinder for a marine detector according to this embodiment are the same as those in the first embodiment, except that in the composite material cylinder for a marine detector of this embodiment, the winding angle, winding layer thickness, fiber thickness in each winding layer, winding layer number and prestress applied during winding are as shown in table 5 below (winding layers are calculated in order from inside to outside):
TABLE 5
| Winding layer | Winding angle | Thickness of single layer | Number of winding layers | Thickness of layer | Fiber prestress |
| First layer | 85° | 0.15 |
2 layers | 0.3mm | 230MPa |
| Second layer | 25° | 0.3 |
4 layers | 1.2mm | 250MPa |
| Third layer | 75° | 0.15 |
2 layers | 0.3mm | 330MPa |
| Fourth layer | 15° | 0.3 |
4 layers | 1.2mm | 350MPa |
| Fifth layer | 77° | 0.5 |
2 layers | 1.0mm | 330MPa |
| Filling layer | 0.12mm | ||||
| Sixth layer | 22° | 0.35 |
2 layers | 0.7mm | 350MPa |
| Seventh layer | 88° | 0.15 |
2 layers | 0.3mm | 280MPa |
| Eighth layer | 35° | 0.3 |
4 layers | 1.2mm | 320MPa |
| Ninth layer of | 85° | 0.35 |
2 layers | 0.7mm | 330MPa |
| Tenth layer | 25° | 0.35 |
2 layers | 0.7mm | 330MPa |
| Filling layer | 0.15mm | ||||
| Eleventh layer | 85° | 0.15 |
2 layers | 0.3mm | 300MPa |
| Twelfth layer | 45° | 0.25 |
4 layers | 1.0mm | 350MPa |
| Thirteenth layer | 83° | 0.15 |
2 layers | 0.3mm | 330MPa |
| Fourteenth layer | 22° | 0.25 |
4 layers | 1.0mm | 420MPa |
| Fifteenth layer | 88° | 0.25 |
4 layers | 1.0mm | 330MPa |
Example seven
The composite material cylinder for the ocean detector has the same structure as in the first embodiment, except that the resin glue solution for winding the layering is prepared from vinyl resin and 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 0.5mm; the filling material is rubber balls.
Example eight
The composite material cylinder for the ocean detector has the same structure as in the first embodiment, except that the resin glue solution for winding the layering is prepared from vinyl resin and 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 3mm; the filling material is rubber balls.
Example nine
The composite material cylinder for the ocean detector 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 one
The cylinder body of the marine detector protection shell of the comparative example is made of aluminum alloy with the wall thickness of 20 mm.
Comparative example two
The cylinder body of the marine detector protection shell of the comparative example is a cylinder body made of stainless steel with the wall thickness of 12 mm.
Comparative example three
The cylinder body of the marine detector protection shell of the comparative example is made of high-strength steel with the wall thickness of 8 mm.
Comparative example four
The composite material cylinder of the present comparative example was prepared by winding 56 layers of a single layer of a fibrous material impregnated with a resin dope of 0.2mm thickness around a die at a winding angle of 85 ° in the same manner as in the first embodiment, except that the structural layer of the cylinder was prepared in the first embodiment, and the total thickness of the prepared composite material layer was 11.2 mm.
Composite material cylinder structure and performance test
The weight, corrosion resistance, impact strength and failure mode of the composite cylinders of examples and comparative examples were measured, and the measurement results are shown in table 6 below. The corrosion resistance test method comprises the following steps: observing the surface corrosion condition after soaking for 72 hours by using artificial seawater; the impact performance test method comprises the following steps: the impact strength of the material when damaged was measured by a weight hammer method.
As can be seen from the test results, 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 body of the fourth comparative example, which is integrally formed by integrally winding composite material fibers at the same spiral winding angle, the impact strength of the composite material cylinder body of the present application is obviously enhanced, and the failure mode is changed from integral damage to layer-by-layer failure, and only the surface layer or several layers of fibers are broken during the impact strength test, which indicates that the composite material cylinder body of the present application has higher impact strength, and the energy absorption effect is greatly improved, and the present application can play a buffering protection role on instruments in the cylinder body and on the cylinder body when being impacted; the impact strength of the fifth and sixth embodiments is slightly inferior to those of the first, third and fourth embodiments, and therefore, the thickness of each wound ply of the composite cylinder is preferably 0.4-4.3mm, and the thickness of each wound ply is preferably 8-10 layers.
TABLE 6
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the invention.
Claims (3)
1. A composite cartridge for a marine probe, characterized by: the structure layer comprises a plurality of winding layers which are overlapped from inside to outside, wherein each winding layer is 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 thickness of each winding layer is 0.4-4.3mm, and the thickness of each winding layer is 8-10 layers; the filling material is foam or rubber, and the thickness of the filling material is 0.12-0.2mm; the functional layer is arranged on the outer surface of the structural layer, the functional layer is polyurethane or polyurea, and the thickness of the functional layer is 0.5-3mm; the thickness of the single layer of the fiber material impregnated with the resin glue solution is 0.15-0.5mm, and each winding layer is formed by winding 2-12 layers of the fiber material impregnated with the resin glue solution;
the preparation method of the composite material cylinder for the ocean detector comprises the following steps: sequentially winding the fiber materials impregnated with the resin glue solution on the surface of a mould according to a selected winding angle to form the winding layer; filling the filling material between the selected winding layers to obtain a composite material cylinder structure; the composite material cylinder structure is solidified by adopting gradient heating, and the steps of gradient heating and solidification are as follows: solidifying at 60-80 deg.c for 1-3 hr; solidifying at 120-140 deg.c for 3-5 hr; solidifying for 5-7h at 170-190 ℃ to obtain the composite material cylinder for the ocean detector; when winding the fiber material impregnated with the resin glue solution, applying 150-500MPa prestress to the fiber material impregnated with the resin glue solution.
2. A composite housing for a marine detector, characterized by: a composite cylinder for a marine probe as claimed in claim 1 further comprising an upper end cap and a lower end cap connected to both ends of the composite cylinder.
3. Use of a composite cylinder for a marine detector according to claim 1 in a marine detector.
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| Title |
|---|
| 《变缠绕角螺旋缠绕厚壁筒的结构分析》;耿沛;《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》;20160809;33、46-48、59-69 * |
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| CN112848366A (en) | 2021-05-28 |
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