CN114274523A - Automobile anti-collision beam and preparation method thereof - Google Patents
Automobile anti-collision beam and preparation method thereof Download PDFInfo
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- CN114274523A CN114274523A CN202111584986.8A CN202111584986A CN114274523A CN 114274523 A CN114274523 A CN 114274523A CN 202111584986 A CN202111584986 A CN 202111584986A CN 114274523 A CN114274523 A CN 114274523A
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- thermoplastic
- carbon fiber
- honeycomb core
- collision beam
- fiber composite
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- 238000002360 preparation method Methods 0.000 title claims abstract description 8
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 52
- 239000004917 carbon fiber Substances 0.000 claims abstract description 52
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 50
- 229920001169 thermoplastic Polymers 0.000 claims abstract description 44
- 239000004416 thermosoftening plastic Substances 0.000 claims abstract description 44
- 239000002131 composite material Substances 0.000 claims abstract description 35
- 239000000853 adhesive Substances 0.000 claims abstract description 11
- 230000001070 adhesive effect Effects 0.000 claims abstract description 11
- 238000004519 manufacturing process Methods 0.000 claims abstract description 11
- 239000004744 fabric Substances 0.000 claims description 29
- 239000000463 material Substances 0.000 claims description 21
- 229920005992 thermoplastic resin Polymers 0.000 claims description 13
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 10
- 229910052799 carbon Inorganic materials 0.000 claims description 10
- 239000000835 fiber Substances 0.000 claims description 7
- 239000004743 Polypropylene Substances 0.000 claims description 4
- 238000001746 injection moulding Methods 0.000 claims description 4
- -1 polypropylene Polymers 0.000 claims description 4
- 229920005989 resin Polymers 0.000 claims description 4
- 239000011347 resin Substances 0.000 claims description 4
- 239000004696 Poly ether ether ketone Substances 0.000 claims description 3
- 150000001408 amides Chemical class 0.000 claims description 3
- 229920002530 polyetherether ketone Polymers 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 238000004026 adhesive bonding Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 238000010521 absorption reaction Methods 0.000 abstract description 5
- 239000007769 metal material Substances 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 239000011162 core material Substances 0.000 description 16
- 239000002243 precursor Substances 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
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- 239000000243 solution Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
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- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
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- 238000005452 bending Methods 0.000 description 1
- 239000010960 cold rolled steel Substances 0.000 description 1
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- 239000011664 nicotinic acid Substances 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
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Abstract
The invention provides an automobile anti-collision beam and a preparation method thereof, wherein the automobile anti-collision beam comprises two thermoplastic carbon fiber composite panels and a thermoplastic honeycomb core panel, the two thermoplastic carbon fiber composite panels are respectively arranged on the upper side surface and the lower side surface of the thermoplastic honeycomb core panel, and the upper side surface and the lower side surface are respectively connected with the thermoplastic carbon fiber composite panels in an adhesive manner through adhesives. Compared with the anti-collision beam made of metal materials in the prior art, the anti-collision beam provided by the invention has the advantages that the weight can be effectively reduced, the light weight of the anti-collision beam is better realized, the energy absorption efficiency is improved, the production beat and the production efficiency can be effectively improved, the production cost is reduced, and the anti-collision beam can meet the comprehensive requirements on performance, cost and structure.
Description
Technical Field
The invention belongs to the technical field of vehicle parts, and particularly relates to an anti-collision beam for a vehicle and a preparation method thereof.
Background
The front anti-collision beam of the automobile is an important safety performance component which is connected to a vehicle body longitudinal beam and used for protecting rear components such as a water tank and the like, can resist impact and absorb a part of impact energy when the automobile collides, and transmits the impact force to an energy absorption box and the front longitudinal beam on the rear side.
The traditional front anti-collision beam is made of metal, such as steel or aluminum alloy, and mainly has the function of reducing the injury to pedestrians to the maximum extent when the vehicle and the pedestrians have collision accidents; when the vehicle collides at a low speed, parts such as an automobile cooling system and the like are protected, the front longitudinal beam of the vehicle is ensured not to deform, and the repair cost of the vehicle is reduced; during collision, energy generated in the collision is transmitted to energy-absorbing parts of a vehicle body structure as uniformly as possible, and the fact that the inward invasion amount of the front side frame after being crushed is not too large is guaranteed.
The existing anti-collision beam is a U-shaped channel steel formed by stamping a cold-rolled steel plate with the thickness of 3 mm, is welded and connected with a frame longitudinal beam through an energy absorption box and a mounting plate, is an important safety device for absorbing and relieving external impact force, and bears front end load, particularly concentrated load, distributed on longitudinal energy absorption boxes on two sides. However, the weight of the anti-collision beam is heavier, the weight reduction requirement of the automobile is further deepened, particularly the weight reduction of the electric automobile is urgently needed to increase the endurance mileage, and the application range of various light materials such as aluminum, magnesium, carbon fiber composite materials and the like in the main bearing structure of the automobile is continuously expanded. Therefore, how to design the impact beam to effectively reduce the weight is a technical problem that needs to be solved urgently by those skilled in the art.
Disclosure of Invention
The invention aims to provide an anti-collision beam for a vehicle, which aims to solve the technical problems in the prior art. The invention also provides a preparation method of the vehicle anti-collision beam.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides an automobile-used anticollision roof beam, its includes two thermoplasticity carbon-fibre composite panels, thermoplasticity honeycomb core panel, two thermoplasticity carbon-fibre composite panels sets up respectively on the last side and the downside of thermoplasticity honeycomb core panel, go up the side with the downside respectively through the adhesive with thermoplasticity carbon-fibre composite panel adhesive bonding connects.
Preferably, the thermoplastic honeycomb core panel is a polypropylene honeycomb core panel.
Preferably, the thermoplastic carbon fiber composite panel is made of a carbon fiber material and a thermoplastic resin.
Preferably, the carbon cloth in the carbon fiber material is made of flat twill unidirectional cloth, and each layer of unidirectional cloth is mixed and alternately layered at layering angles of 45 degrees, 90 degrees, -45 degrees, 0 degrees, 45 degrees, 0 degrees, -45 degrees, 0 degrees, -45 degrees, 90 degrees and 45 degrees.
Preferably, the thermoplastic resin is a polyetheretherketone amide resin.
Preferably, the adhesive is TEP 60.
The invention also provides a preparation method of the vehicle anti-collision beam, which comprises the following steps:
s1, preparing two thermoplastic carbon fiber composite panels;
s2, adding a thermoplastic honeycomb core panel between the two thermoplastic carbon fiber composite material panels, and bonding the upper side and the lower side of the thermoplastic honeycomb core panel with the two thermoplastic carbon fiber composite material panels respectively by using an adhesive.
Preferably, in step S1, the thermoplastic carbon fiber composite panel is made of a carbon fiber material and a thermoplastic resin, the carbon cloth in the carbon fiber material is made of plain twill unidirectional cloth, each layer of unidirectional cloth is laid at a set laying angle, then the layers of unidirectional cloth are placed in a mold, mold closing is performed under a pressure of 1.5MPa, then the thermoplastic resin is injected, injection molding is performed under a pressure of 15MPa, and the dwell time is 3 hours at a temperature of 120 ℃.
The invention has the beneficial effects that:
compared with the anti-collision beam made of metal materials in the prior art, the anti-collision beam for the vehicle comprises two thermoplastic carbon fiber composite panels and the thermoplastic honeycomb core panel arranged between the two thermoplastic carbon fiber composite panels, and can effectively reduce the weight and better realize the light weight of the anti-collision beam.
Drawings
In order to more clearly describe the embodiments of the present application or the technical solutions in the prior art, the drawings required in the embodiments will be briefly described below, and the embodiments of the present invention will be further described in detail with reference to the drawings, wherein
Fig. 1 is a schematic view of an automotive impact beam according to an embodiment of the present invention.
In the drawings, the reference numbers:
11. thermoplastic carbon fiber composite panel, 21, thermoplastic honeycomb core panel.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the following detailed description will be provided with reference to specific embodiments.
As shown in fig. 1, an embodiment of the present invention provides an impact beam for a vehicle, which includes two thermoplastic carbon fiber composite panels 11 and a thermoplastic honeycomb core panel 21, wherein the two thermoplastic carbon fiber composite panels 11 are respectively disposed on an upper side and a lower side of the thermoplastic honeycomb core panel 21, and the upper side and the lower side are respectively bonded to the thermoplastic carbon fiber composite panels by an adhesive.
Compared with the anti-collision beam made of metal materials in the prior art, the anti-collision beam for the vehicle comprises the two thermoplastic carbon fiber composite panels 11 and the thermoplastic honeycomb core panel 21 arranged between the two thermoplastic carbon fiber composite panels, the anti-collision beam for the vehicle can effectively reduce the weight, and the light weight of the anti-collision beam is better realized.
Further, the thermoplastic honeycomb core panel 21 is a polypropylene honeycomb core panel. It can be understood that the thermoplastic honeycomb core material is a novel structural material processed by materials such as polypropylene or polycarbonate or polyethylene terephthalate according to the bionic principle of the honeycomb, has the characteristics of light weight, high strength, environmental protection, water resistance, moisture resistance, corrosion resistance and the like, and can be compounded with different plane materials such as glass fiber reinforced plastics, wood grain plates, aluminum plates, stainless steel plates, marble plates, rubber plates and the like.
Specifically, the thermoplastic carbon fiber composite panel 11 is made of a carbon fiber material and a thermoplastic resin.
Preferably, the carbon cloth in the carbon fiber material is flat twill unidirectional cloth, and each layer of unidirectional cloth is mixed and alternately layered at layering angles of 45 degrees, 90 degrees, -45 degrees, 0 degrees, 45 degrees, 0 degrees, -45 degrees, 0 degrees, -45 degrees, 90 degrees and 45 degrees. The carbon cloth can adopt Dongli 3K flat twill unidirectional cloth, 3K represents the type of carbon fiber tows, a cluster of tows comprises 3000 carbon fiber precursors, twill represents the arrangement direction of the carbon fibers in the carbon cloth, unidirectional cloth represents that a large number of carbon fiber precursors exist in one direction, and only a small number of carbon fiber precursors exist in the other direction; the plain twill unidirectional carbon fiber cloth represents a weaving mode of carbon fiber precursors, and the weaving method can keep the radial full strength of the carbon fibers. According to the designed layering mode of the multilayer carbon cloth, the performance of the whole carbon fiber product can be exerted, because the plain unidirectional cloth only retains the radial full strength, the whole carbon fiber product is firmer and more durable through the design of layering, and the layering angle represents the fiber trend; the unidirectional carbon cloth is folded and laid along different angles and direction angles, so that the anisotropy of the carbon fiber material can be eliminated, and the optimal structural performance advantage can be exerted by using the least materials by utilizing the laying mode.
Further, the thermoplastic resin is polyether ether ketone amide resin.
Specifically, the adhesive is model number TEP 60. It is understood that it belongs to bosch gum.
The embodiment of the invention also provides a preparation method of the anti-collision beam for the vehicle, which comprises the following steps:
s1, preparing two thermoplastic carbon fiber composite panels;
s2, adding a thermoplastic honeycomb core panel between the two thermoplastic carbon fiber composite material panels, and bonding the upper side and the lower side of the thermoplastic honeycomb core panel with the two thermoplastic carbon fiber composite material panels respectively by using an adhesive.
Specifically, in step S1, the thermoplastic carbon fiber composite panel is made of a carbon fiber material and a thermoplastic resin, the carbon cloth in the carbon fiber material is made of plain twill unidirectional cloth, each layer of unidirectional cloth is layered at a set layering angle, and then placed in a mold, mold closing is performed under a pressure of 1.5MPa, then the thermoplastic resin is injected, and injection molding is performed under a pressure of 15MPa, the pressure maintaining time is 3 hours, and the temperature is 120 ℃. It is understood that the layering mode of each layer of unidirectional cloth can be the same as the layering mode, namely, each layer of unidirectional cloth is mixed and alternately layered at layering angles of 45 degrees, 90 degrees, 45 degrees, 0 degrees, 45 degrees, 0 degrees, 45 degrees, 90 degrees and 45 degrees; the manufacturing method of the vehicle anti-collision beam also has the technical effects.
Because the traditional thermosetting resin carbon fiber composite material is difficult to degrade under natural conditions and has low recovery rate, the automobile industry has the defects of difficult recovery and difficult reutilization if being applied in a large scale. Meanwhile, the production takt of the thermosetting composite material cannot meet the requirement of the large-scale production takt of an automobile production line, and the front anti-collision beam provided by the embodiment of the invention adopts a sandwich structure which is similar to a sandwich and is composed of thermoplastic resin and recyclable thermoplastic carbon fiber materials, so that the production takt and the production efficiency are improved on the one hand, the utilization rate of the materials is greatly improved on the other hand, the large-scale continuous development and application are facilitated, the production cost is reduced, the weight is reduced, the energy absorption efficiency is improved, and the anti-collision beam can meet the comprehensive requirements of performance, cost and structure.
Compared with the prior art of the anti-collision beam made of metal materials, the front anti-collision beam has the advantages that the weight can be reduced by 80%, the manufacturing cost is greatly reduced by adopting recyclable materials, the anti-collision beam has higher bending rigidity and shearing strength, is excellent in moisture resistance, acid resistance and alkali resistance, can be subjected to thermoforming and functionalization through injection molding, and is beneficial to realizing light weight, performance improvement and cost reduction.
The above are only preferred embodiments of the present invention, it should be noted that these examples are only for illustrating the present invention and not for limiting the scope of the present invention, and after reading the content of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalents also fall within the scope of the claims appended to the present application.
Claims (8)
1. The utility model provides an automobile-used anticollision roof beam, its characterized in that, it includes two thermoplasticity carbon-fibre composite panels, thermoplasticity honeycomb core panel, two thermoplasticity carbon-fibre composite panels sets up respectively on the last side and the downside of thermoplasticity honeycomb core panel, go up the side with the downside respectively through the adhesive with thermoplasticity carbon-fibre composite panel adhesive bonding.
2. The impact beam of claim 1, wherein the thermoplastic honeycomb core panel is a polypropylene honeycomb core panel.
3. The impact beam for vehicles according to claim 1, wherein said thermoplastic carbon fiber composite panel is made of a carbon fiber material and a thermoplastic resin.
4. The automotive impact beam as claimed in claim 3, wherein the carbon cloth in the carbon fiber material is a plain twill unidirectional cloth, and each layer of unidirectional cloth is mixed and alternately layered at a layering angle of 45 °, 90 °, -45 °, 0 °, 45 °, 0 °, -45 °, 0 °, -45 °, 90 °, and 45 °.
5. The impact beam for vehicles according to claim 3, wherein said thermoplastic resin is a polyetheretherketone amide resin.
6. The impact beam for vehicles as claimed in any one of claims 1 to 5, wherein the adhesive is TEP 60.
7. The preparation method of the vehicle anti-collision beam is characterized by comprising the following steps of:
s1, preparing two thermoplastic carbon fiber composite panels;
s2, adding a thermoplastic honeycomb core panel between the two thermoplastic carbon fiber composite material panels, and bonding the upper side and the lower side of the thermoplastic honeycomb core panel with the two thermoplastic carbon fiber composite material panels respectively by using an adhesive.
8. The method for manufacturing an anti-collision beam for a vehicle according to claim 7, wherein in step S1, the thermoplastic carbon fiber composite panel is made of a carbon fiber material and a thermoplastic resin, the carbon cloth in the carbon fiber material is made of flat twill unidirectional cloth, each layer of unidirectional cloth is layered at a set layering angle, and then is placed in a mold, and mold clamping is performed under a pressure of 1.5MPa, and then the thermoplastic resin is injected, and injection molding is performed under a pressure of 15MPa, with a dwell time of 3 hours and a temperature of 120 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111584986.8A CN114274523A (en) | 2021-12-15 | 2021-12-15 | Automobile anti-collision beam and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111584986.8A CN114274523A (en) | 2021-12-15 | 2021-12-15 | Automobile anti-collision beam and preparation method thereof |
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| CN114274523A true CN114274523A (en) | 2022-04-05 |
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| CN202111584986.8A Pending CN114274523A (en) | 2021-12-15 | 2021-12-15 | Automobile anti-collision beam and preparation method thereof |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1330953C (en) * | 1988-01-25 | 1994-07-26 | Haptain R. Wongh | Automatic motor vehicle anticollision device |
| CN1672916A (en) * | 2005-04-21 | 2005-09-28 | 武汉理工大学 | Anti-collision decorating board inside vehicle |
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| CN206086610U (en) * | 2016-08-16 | 2017-04-12 | 北京新能源汽车股份有限公司 | Closed section door anticollision roof beam and car |
| CN108407400A (en) * | 2018-01-25 | 2018-08-17 | 大连理工大学 | Carbon fibre reinforced composite corrugated core sandwich automobile buffer beam |
| CN109318841A (en) * | 2018-10-30 | 2019-02-12 | 江苏振世达新能源汽车有限公司 | A kind of automobile-used collision prevention girders and its manufacturing method |
| CN109484346A (en) * | 2018-10-23 | 2019-03-19 | 华侨大学 | Truck tail anti-collision structure |
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| CN212267391U (en) * | 2020-10-27 | 2021-01-01 | 慈溪市宏轩电机有限公司 | High-strength FRP composite material automobile anti-collision plate |
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-
2021
- 2021-12-15 CN CN202111584986.8A patent/CN114274523A/en active Pending
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|---|---|---|---|---|
| CA1330953C (en) * | 1988-01-25 | 1994-07-26 | Haptain R. Wongh | Automatic motor vehicle anticollision device |
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