CN114932925A - Hexagonal high-performance composite material anti-creeper and manufacturing method thereof - Google Patents
Hexagonal high-performance composite material anti-creeper and manufacturing method thereof Download PDFInfo
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- CN114932925A CN114932925A CN202210571470.8A CN202210571470A CN114932925A CN 114932925 A CN114932925 A CN 114932925A CN 202210571470 A CN202210571470 A CN 202210571470A CN 114932925 A CN114932925 A CN 114932925A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 13
- 238000010521 absorption reaction Methods 0.000 claims description 38
- 239000000835 fiber Substances 0.000 claims description 30
- 239000011229 interlayer Substances 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 20
- 239000012783 reinforcing fiber Substances 0.000 claims description 20
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- 239000011159 matrix material Substances 0.000 claims description 13
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 229920002748 Basalt fiber Polymers 0.000 claims description 3
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 3
- 239000004760 aramid Substances 0.000 claims description 3
- 229920006231 aramid fiber Polymers 0.000 claims description 3
- 239000004917 carbon fiber Substances 0.000 claims description 3
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 229920001225 polyester resin Polymers 0.000 claims description 3
- 239000004645 polyester resin Substances 0.000 claims description 3
- 229920005749 polyurethane resin Polymers 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
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- 239000007769 metal material Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
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Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F19/00—Wheel guards; Bumpers; Obstruction removers or the like
- B61F19/04—Bumpers or like collision guards
-
- 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
- B29C70/34—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 and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
- B29C70/342—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 and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation using isostatic pressure
-
- 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
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/42—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles
- B29C70/44—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using isostatic pressure, e.g. pressure difference-moulding, vacuum bag-moulding, autoclave-moulding or expanding rubber-moulding
- B29C70/446—Moulding structures having an axis of symmetry or at least one channel, e.g. tubular structures, frames
Abstract
The invention provides a hexagonal high-performance composite material anti-creeper and a manufacturing method thereof, belongs to the field of composite material application, and particularly relates to a hexagonal high-performance composite material anti-creeper and a manufacturing method thereof. The problem of current anti-creep device difficult satisfy crashproof energy-absorbing demand is solved. It includes that it includes fixing base guiding device, hexagon energy-absorbing pipe and anti-creep device, the material of hexagon energy-absorbing pipe is combined material, fixing base guiding device includes flange and hexagon guiding tube, hexagon guiding tube top is equipped with the undergauge and warp, the diameter that the undergauge warp is less than the diameter of hexagon energy-absorbing pipe, hexagon guiding tube bottom and flange joint, hexagon energy-absorbing pipe one end is passed the flange and is connected with the cooperation of hexagon guiding tube inner wall, and the other end links to each other with anti-creep device. It is mainly used for the safety design of vehicle collision.
Description
Technical Field
The invention belongs to the field of composite material application, and particularly relates to a hexagonal high-performance composite material anti-creeper and a manufacturing method thereof.
Background
The rail vehicle collision safety design is that a vehicle collision avoidance system is designed to enable the collision process to be carried out according to a reasonable sequence specified artificially, and the vehicle collision energy is absorbed as much as possible, so that the personal safety of passengers and drivers and passengers is protected to the greatest extent, and the vehicle damage caused by collision is reduced. To prevent climbing between vehicles when a train collides, the ends of the vehicles are often provided with anti-creepers. The deformation energy-absorbing element is usually arranged behind the anti-creeper.
At present, the common anti-climbing device is mainly of a metal structure, and along with the development of high-speed rail transit and the requirement of structure lightweight design, the traditional metal steel and aluminum alloy energy absorption structure is difficult to meet the requirements of anti-collision and energy absorption. The fiber composite material has the mechanical characteristics of high specific strength, specific rigidity and the like, and the characteristics of designability and light weight, so the fiber composite material is more and more widely applied to the fields of rail transit, aerospace and the like.
According to EN 15227, when subway vehicles of the same type collide with each other at a speed of 25km/h, the anti-creeper should be capable of effectively preventing the occurrence of climbing, and the vertical deviation caused by wheel wear, vertical load and the like is regulated to be considered, and the vertical deviation can also be effectively prevented when the vertical deviation reaches 40 mm. This requires the anti-creeper to have sufficient vertical strength and rigidity while having stable energy absorption capability.
Compared with the traditional metal material, the composite material can improve the specific energy absorption of the structure and has the weight reduction effect. The fiber composite material has better stiffness and strength than the metal material in the fiber direction, but the interlayer performance of the composite material is much lower than that of the metal material. When the energy absorption device is impacted by the outside, the interlaminar stress exceeds the material tolerance value to generate layering in the bearing process of the composite material structure, and the energy absorption efficiency is reduced.
Disclosure of Invention
In view of this, the invention aims to provide a hexagonal high-performance composite material anti-creeper and a manufacturing method thereof, so as to solve the problem that the existing anti-creeper device is difficult to meet the requirements of collision prevention and energy absorption.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a hexagonal high performance combined material anticreeper, it includes fixing base guiding device, hexagon energy-absorbing pipe and anti-creep device, the material of hexagon energy-absorbing pipe is combined material, fixing base guiding device includes flange and hexagon guiding tube, hexagon guiding tube top is equipped with the undergauge and warp, the diameter that the undergauge warp is less than the diameter of hexagon energy-absorbing pipe, hexagon guiding tube bottom and flange joint, hexagon energy-absorbing pipe one end is passed the flange and is connected with hexagon guiding tube inner wall cooperation, and the other end links to each other with anti-creep device.
Furthermore, the anti-climbing device is provided with anti-climbing sawteeth at one end and a hexagonal groove at the other end, and one end of the hexagonal energy-absorbing pipe is connected with the hexagonal groove in a matched mode.
Furthermore, the anti-climbing device is made of metal.
Furthermore, the material of the fixing seat guiding device is a metal material.
The invention also provides a manufacturing method of the hexagonal high-performance composite material anti-creeper, which comprises the following steps:
the method comprises the following steps: carrying out interlayer reinforcing process forming on the appearance-finished hexagonal energy absorption pipe, and perforating the base pipe wall of the hexagonal energy absorption pipe according to the designed position;
step two: impregnating continuous fibers with resin, twisting to form interlaminar reinforced fiber bundles, and sequentially passing through the holes from the inside to the outside of the matrix of the hexagonal energy absorption tube and from the outside to the inside of the matrix in sequence, wherein the interlaminar reinforced fiber bundles are ensured to be continuous;
step three: after interlayer reinforcing fiber bundles continuously penetrate through a matrix of the hexagonal energy absorption pipe, forming and paving the wetted fiber fabric on the outer surface of the matrix of the hexagonal energy absorption pipe by a hand pasting process, and then carrying out secondary curing on the surface hand pasted fiber fabric and the interlayer reinforcing fiber bundles together by a vacuum bag pressing method to complete the forming of the hexagonal energy absorption pipe and ensure the rigidity and the strength of the interlayer reinforcing fiber bundles and the surface quality of the hexagonal energy absorption pipe;
step four: after the hexagonal energy-absorbing pipe is formed, one end of the formed hexagonal energy-absorbing pipe is fixedly connected with the anti-climbing device, and the other end of the hexagonal energy-absorbing pipe is pushed under the axial and vertical load action to enter the fixing seat guiding device to be connected with the shrinkage deformation part at the top of the hexagonal guide pipe in a matched mode.
Further, the diameter of the interlaminar reinforcing fiber bundle is phi 1-phi 3.
Furthermore, the aperture of the open hole drilling is phi 1-phi 3.
Further, the thickness of the fiber fabric is 0.2 mm.
Furthermore, the interlaminar reinforcing fiber bundles and the fiber fabrics are carbon fibers, glass fibers, aramid fibers or basalt fibers.
Furthermore, the matrix material of the hexagonal energy absorption tube is epoxy resin, polyurethane resin or polyester resin.
Compared with the prior art, the invention has the beneficial effects that:
1. the hexagonal energy-absorbing pipe is made of the composite material, so that the specific energy absorption of the structure is improved, and the hexagonal energy-absorbing pipe is better in energy-absorbing effect and lighter in weight compared with the traditional metal material;
2. according to the invention, interlayer reinforcing technology forming is carried out on the hexagonal energy-absorbing pipe, and continuous reinforcing fiber bundles are added among the layers of the hexagonal energy-absorbing pipe, so that the interlayer bearing capacity is improved;
3. according to the invention, by arranging the interlayer reinforced fiber bundles, after the hexagonal energy-absorbing pipe is cracked under the combined action of radial extrusion, axial compression and vertical bending load at the diameter-reduced deformation part of the hexagonal guide pipe, the interlayer reinforced fiber bundles can not be broken and deform under the load, so that the energy-absorbing effect can be achieved, and the energy-absorbing efficiency is improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a three-dimensional schematic diagram of the overall structure of a hexagonal high-performance composite material anti-creeper according to the present invention;
FIG. 2 is a schematic front view of a guiding device structure of a fixing seat of a hexagonal high-performance composite material anti-creeper according to the present invention;
FIG. 3 is a right-side view schematically illustrating the structure of the fixing seat guiding device of the hexagonal high-performance composite material anti-creeper according to the present invention;
FIG. 4 is a schematic front view of a hexagonal energy-absorbing tube of a hexagonal high-performance composite material anti-creeper according to the present invention;
FIG. 5 is a right schematic view of a hexagonal energy-absorbing tube of a hexagonal high-performance composite material anti-creeper according to the present invention;
FIG. 6 is a schematic bottom view of the structure of the anti-creeper in the hexagonal high performance composite material of the present invention;
FIG. 7 is a schematic top view of the structure of the anti-creep device of the hexagonal high-performance composite anti-creep device according to the present invention;
FIG. 8 is a schematic front view of the structure of the anti-creep device of the hexagonal high-performance composite anti-creep device according to the present invention;
FIG. 9 is a three-dimensional schematic view of the structure of the anti-creep device of the hexagonal high-performance composite anti-creep device according to the present invention;
FIG. 10 is a schematic diagram of hole sites on the base tube wall of a hexagonal energy-absorbing tube of the hexagonal high-performance composite anti-creeper according to the present invention;
FIG. 11 is a schematic view of the hole site of the hexagonal energy-absorbing tube matrix tube wall and the continuous perforation sequence of the reinforcing fiber bundle of the hexagonal high-performance composite material anti-creeper according to the present invention;
FIG. 12 is a partial cross-sectional view of the hexagonal energy-absorbing tube and the anti-creep device of the hexagonal high-performance composite anti-creep device according to the present invention;
FIG. 13 is a partial cross-sectional view of a hexagonal energy absorbing tube of a hexagonal high performance composite material anti-creeper of the present invention mated with a mount guide;
FIG. 14 is a partial sectional view of the hexagonal energy absorbing tube of the hexagonal high performance composite material anti-creeper of the present invention connected to the anchor mount guide;
wherein the lines and arrow directions of fig. 11 indicate the sequential orientation of the continuous perforation of the interlaminar reinforcing fiber bundles.
1-a fixed seat guiding device, 2-a hexagonal energy absorption pipe, 3-an anti-creep device, 4-a flange and 5-a hexagonal guide pipe.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely explained below with reference to the drawings in the embodiments of the present invention. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict, and the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments.
The embodiment is described with reference to fig. 1-14, a hexagonal high-performance composite material anti-creeper, which comprises a fixing seat guide device 1, a hexagonal energy-absorbing pipe 2 and an anti-creeper 3, wherein the hexagonal energy-absorbing pipe 2 is made of a composite material, the fixing seat guide device 1 comprises a flange 4 and a hexagonal guide pipe 5, the top of the hexagonal guide pipe 5 is provided with a reducing deformation, the diameter of the reducing deformation is smaller than that of the hexagonal energy-absorbing pipe 2, the bottom of the hexagonal guide pipe 5 is connected with the flange 4, one end of the hexagonal energy-absorbing pipe 2 passes through the flange 4 and is connected with the inner wall of the hexagonal guide pipe 5 in a matching manner, the other end of the hexagonal energy-absorbing pipe is connected with the anti-creeper 3, one end of the anti-creeper 3 is provided with an anti-creeper sawtooth, the other end of the hexagonal energy-absorbing pipe 2 is connected with the hexagonal groove in a matching manner.
The embodiment also provides a manufacturing method of the hexagonal high-performance composite material anti-creeper, which comprises the following steps:
the method comprises the following steps: carrying out interlayer reinforcing process molding on the hexagonal energy-absorbing pipe 2 after appearance trimming, and perforating the base pipe wall of the hexagonal energy-absorbing pipe 2 according to the designed position, wherein the aperture of the perforation is phi 1-phi 3;
step two: impregnating continuous fibers with resin, twisting to form interlayer reinforcing fiber bundles phi 1-phi 3, and sequentially passing through the holes from the inside to the outside of the base body of the hexagonal energy absorption tube 2 and from the outside to the inside of the base body according to the sequence of the lines and arrow directions in the figure 11, wherein the interlayer reinforcing fiber bundles are ensured to be continuous;
step three: after interlayer reinforcing fiber bundles continuously penetrate through a matrix of the hexagonal energy absorption pipe 2, using soaked 0.2mm fiber fabric on the outer surface of the matrix of the hexagonal energy absorption pipe 2, forming and paving the fiber fabric on the outer surface of the matrix of the hexagonal energy absorption pipe 2 by adopting a hand pasting process, then adopting a vacuum bag pressing method to carry out secondary curing on the surface hand pasted fiber fabric and the interlayer reinforcing fiber bundles together, completing the forming of the hexagonal energy absorption pipe 2, and ensuring the rigidity and the strength of the interlayer reinforcing fiber bundles and the surface quality of the hexagonal energy absorption pipe 2;
step four: after the hexagonal energy-absorbing pipe 2 is formed, one end of the formed hexagonal energy-absorbing pipe 2 is fixedly connected with the anti-creep device 3, and the other end of the hexagonal energy-absorbing pipe is pushed into the reducing deformation part from the fixed seat guiding device 1 to the top of the hexagonal guide pipe 5 under the action of axial and vertical loads to be connected in a matching manner.
This embodiment is connected fixing base guiding device 1 through flange 4 and base, hexagonal energy-absorbing pipe 2 promotes under axial and vertical load effect and gets into in fixing base guiding device 1's hexagonal guiding tube 5, because the diameter that the undergauge warp is less than hexagonal energy-absorbing pipe 2's diameter in hexagonal guiding tube 5, consequently hexagonal energy-absorbing pipe 2 undergauge warp department compressive deformation in hexagonal guiding tube 5, hexagonal energy-absorbing pipe 2 receives radial extrusion simultaneously, axial compression and vertical bending load combined action, hexagonal energy-absorbing pipe 2 begins to warp and absorbs the striking energy. Because the interlayer reinforced fiber bundles are added between the layers of the hexagonal energy absorption pipe 2, the interlayer bearing capacity is improved. At the reducing deformation part in the hexagonal guide pipe 5, the matrix of the hexagonal energy absorption pipe 2 can be compressed and cracked to generate matrix fragments, but the interlaminar reinforced fiber bundles cannot be broken and deform under the action of load, and the phenomenon of local buckling occurs, so that the energy absorption function is achieved, and the energy absorption efficiency is improved.
In this embodiment 3 one end of anti-creep device is equipped with the anti-creep sawtooth, and the other end is equipped with the hexagon recess, the one end and the hexagon recess cooperation of hexagon energy-absorbing pipe 2 are connected, anti-creep device 3's material is the metal material, and the emergence of the climbing condition when the vehicle bumps has effectively been avoided in anti-creep device 3's setting.
In the embodiment, the forming process of the hexagonal energy absorption tube 2 adopts a winding process, an RTM process, a laying process and a hand pasting process.
In this embodiment, the fixing seat guiding device 1 and the anti-climbing device 3 are made of metal.
In this embodiment, the diameter and distribution density of the interlaminar reinforcing fiber bundles are set according to the interlaminar reinforcement degree of the hexagonal energy absorption tube 2.
The forming process of the hexagonal energy-absorbing tube 2 in the embodiment is suitable for circular, quadrilateral or other polygonal structures, and the forming process of the hexagonal energy-absorbing tube 2 in the embodiment is suitable for various polygonal structures.
In this embodiment, the interlaminar reinforcing fiber bundles and the fiber fabrics are carbon fibers, glass fibers, aramid fibers or basalt fibers, and the specific stiffness and the strength of the interlaminar reinforcing fiber bundles and the fiber fabrics in the fiber direction are superior to those of metal materials.
In the embodiment, the base material of the hexagonal energy-absorbing tube 2 is epoxy resin, polyurethane resin or polyester resin, and the base body of the hexagonal energy-absorbing tube 2 is made of composite material, so that the specific energy absorption of the structure is improved, and compared with the traditional metal material, the hexagonal energy-absorbing tube has a better energy-absorbing effect and lighter weight.
The embodiments of the invention disclosed above are intended merely to aid in the explanation of the invention. The examples are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand the invention for and utilize the invention.
Claims (10)
1. The utility model provides a hexagonal high performance combined material anticreeper which characterized in that: it includes fixing base guiding device (1), hexagon energy-absorbing pipe (2) and anti-creep device (3), the material of hexagon energy-absorbing pipe (2) is combined material, fixing base guiding device (1) includes flange (4) and hexagon guiding tube (5), hexagon guiding tube (5) top is equipped with the undergauge and warp, the diameter that the undergauge warp is less than the diameter of hexagon energy-absorbing pipe (2), hexagon guiding tube (5) bottom is connected with flange (4), hexagon energy-absorbing pipe (2) one end is passed flange (4) and is connected with the cooperation of hexagon guiding tube (5) inner wall, and the other end links to each other with anti-creep device (3).
2. The hexagonal high-performance composite material anti-creeper according to claim 1, wherein: the anti-creep device (3) one end is equipped with the anti-creep sawtooth, and the other end is equipped with the hexagon recess, the one end and the hexagon recess cooperation of hexagon energy-absorbing pipe (2) are connected.
3. The hexagonal high-performance composite material anti-creeper according to claim 1, wherein: the anti-creeping device (3) is made of metal.
4. The hexagonal high-performance composite material anti-creeper according to claim 1, wherein: the fixing seat guide device (1) is made of metal.
5. A method for manufacturing a hexagonal high-performance composite material anticreeper as claimed in claim 1, wherein: it comprises the following steps:
the method comprises the following steps: carrying out interlayer reinforcing process forming on the appearance-finished hexagonal energy absorption pipe (2), and perforating holes on the base pipe wall of the hexagonal energy absorption pipe (2) according to the designed position;
step two: impregnating continuous fibers with resin, twisting to form interlayer reinforced fiber bundles, and sequentially passing through the holes from the inside to the outside of the base body of the hexagonal energy absorption pipe (2) to the inside of the base body in sequence, wherein the interlayer reinforced fiber bundles are ensured to be continuous;
step three: after interlayer reinforcing fiber bundles continuously penetrate through a matrix of the hexagonal energy absorption pipe (2), forming and paving a soaked fiber fabric on the outer surface of the matrix of the hexagonal energy absorption pipe (2) by adopting a hand pasting process, then curing the surface hand pasted fiber fabric and the interlayer reinforcing fiber bundles for the second time by adopting a vacuum bag pressing method, so that the forming of the hexagonal energy absorption pipe (2) is completed, and the rigidity and the strength of the interlayer reinforcing fiber bundles and the surface quality of the hexagonal energy absorption pipe (2) are ensured;
step four: after the hexagonal energy-absorbing pipe (2) is formed, one end of the formed hexagonal energy-absorbing pipe (2) is fixedly connected with the anti-creeping device (3), and the other end of the hexagonal energy-absorbing pipe is pushed under the axial and vertical load action to enter the reducing deformation part at the top of the hexagonal guide pipe (5) to be connected in a matching way.
6. The manufacturing method of the hexagonal high-performance composite material anti-creeper according to claim 5, wherein: the diameter of the interlaminar reinforcing fiber bundle is phi 1-phi 3.
7. The manufacturing method of the hexagonal high-performance composite material anti-creeper according to claim 5, wherein: the aperture of the opening punching is phi 1-phi 3.
8. The method for manufacturing the hexagonal high-performance composite material anti-creeper according to claim 5, wherein the method comprises the following steps: the thickness of the fiber fabric is 0.2 mm.
9. The manufacturing method of the hexagonal high-performance composite material anti-creeper according to claim 5, wherein: the interlaminar reinforced fiber bundles and the fiber fabrics are carbon fibers, glass fibers, aramid fibers or basalt fibers.
10. The manufacturing method of the hexagonal high-performance composite material anti-creeper according to claim 5, wherein: the base material of the hexagonal energy absorption tube (2) is epoxy resin, polyurethane resin or polyester resin.
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| CN202210571470.8A CN114932925A (en) | 2022-05-24 | 2022-05-24 | Hexagonal high-performance composite material anti-creeper and manufacturing method thereof |
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2022
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| CN108340937A (en) * | 2018-03-21 | 2018-07-31 | 深圳市乾行达科技有限公司 | Composite material anti-climbing energy-absorbing device |
| CN111845830A (en) * | 2020-08-25 | 2020-10-30 | 中车青岛四方车辆研究所有限公司 | Train passive collision energy-absorbing device and rail train |
| CN217804733U (en) * | 2022-05-24 | 2022-11-15 | 哈尔滨玻璃钢研究院有限公司 | Hexagonal high-performance composite material anti-creeper |
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