CN112849066A - Novel composite anti-collision beam and preparation method thereof - Google Patents
Novel composite anti-collision beam and preparation method thereof Download PDFInfo
- Publication number
- CN112849066A CN112849066A CN202011584018.2A CN202011584018A CN112849066A CN 112849066 A CN112849066 A CN 112849066A CN 202011584018 A CN202011584018 A CN 202011584018A CN 112849066 A CN112849066 A CN 112849066A
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- layer
- collision
- vinyl sheet
- novel composite
- glass fiber
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- 239000002131 composite material Substances 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- 239000004593 Epoxy Substances 0.000 claims description 37
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 20
- 229920002554 vinyl polymer Polymers 0.000 claims description 20
- 239000003365 glass fiber Substances 0.000 claims description 17
- 239000000835 fiber Substances 0.000 claims description 16
- 239000004033 plastic Substances 0.000 claims description 11
- 229920003023 plastic Polymers 0.000 claims description 11
- 230000003014 reinforcing effect Effects 0.000 claims description 11
- 239000003677 Sheet moulding compound Substances 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
-
- 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
- B29C70/345—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 matched moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
- B60R2019/1806—Structural beams therefor, e.g. shock-absorbing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/18—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects characterised by the cross-section; Means within the bumper to absorb impact
- B60R2019/1806—Structural beams therefor, e.g. shock-absorbing
- B60R2019/1833—Structural beams therefor, e.g. shock-absorbing made of plastic material
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Laminated Bodies (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The invention belongs to the technical field of automobile beams, and particularly relates to a novel composite anti-collision beam and a preparation method thereof.
Description
Technical Field
The invention belongs to the technical field of automobile beams, and particularly relates to a novel composite anti-collision beam and a manufacturing method thereof.
Technical Field
Along with the use of electric motor cars and other new energy automobile more and more in various countries in the world, the car lightweight has become the main key point of car continuation of journey, because electric motor car electric power storage capacity is limited, battery package self weight is very big, consequently need subtract heavy to car overall structure, and traditional car adopts high-strength steel, aluminum alloy to replace low-strength steel to subtract heavy and has been close to the limit, how to reduce car weight and need consider by each car producer, the crashproof roof beam of car generally is the steel roof beam at present, the quality is heavier, how to subtract heavy for crashproof roof beam of car is the one direction of subtracting heavy work.
Disclosure of Invention
The invention provides a novel composite anti-collision beam and a preparation method thereof, which can solve the problems pointed out in the background technology.
The utility model provides a novel composite anti-collision beam, includes the crossbeam, the crossbeam includes at least two-layer anticollision layer, first anticollision layer and second anticollision layer promptly, first anticollision layer is the continuous fibers composite bed, the second anticollision layer is the chopped strand composite bed.
Preferably, the continuous fiber composite layer is a fast-curing continuous glass fiber epoxy prepreg layer, and the chopped fiber composite layer is a low-shrinkage epoxy vinyl sheet-like mold plastic layer.
Preferably, the beam comprises two anti-collision layers, the outer layer is a rapid curing continuous glass fiber epoxy prepreg layer, and the inner layer is a low-shrinkage epoxy vinyl sheet-shaped mould plastic layer.
Preferably, the cross section of the cross beam is in a shape like a Chinese character ji or a Chinese character bow and is symmetrically arranged.
Preferably, the inner side surface of the cross beam is provided with a reinforcing rib.
Preferably, the reinforcing ribs are reinforcing ribs shaped like Chinese character 'jing'.
A preparation method of a novel composite anti-collision beam comprises the following steps:
the method comprises the following steps: designing the number of layers of continuous glass fiber epoxy prepreg layers and the weight of epoxy vinyl sheet-shaped mould plastic layers according to the load size and the impact resistance requirement of each part of the anti-collision beam;
step two: accurately paving and pasting the continuous glass fiber epoxy prepreg in a preforming mold, preparing the preforming body into a beam outer layer, accurately weighing the epoxy vinyl sheet molding compound and cutting the epoxy vinyl sheet molding compound according to the design requirement;
step three: setting parameters of a press to enable the temperature of the die to meet the set requirements;
step four: sequentially placing the continuous glass fiber epoxy prepreg pre-forming body and the epoxy vinyl sheet mould plastic layer into a mould, closing the mould, maintaining the pressure and curing;
preferably, in the second step, the continuous glass fiber epoxy prepreg performing body compacts the multiple layers of prepregs by adopting a vacuum bag pressing method, performs the mold and keeps the constant temperature of 30 +/-5 ℃.
Preferably, the pressure of the medium press in the third step is adjusted to 300T, the temperature of a female die of the die is 145 +/-5 ℃, and the temperature of a male die is 150 +/-5 ℃.
Preferably, in the fourth step, the epoxy vinyl sheet molding compound is uniformly spread in the female die at a laying position and occupies more than 80% of the area of the die cavity.
The invention has the beneficial effects that:
1. the automobile anti-collision beam is compacted by adopting a continuous fiber composite material and short fiber composite material mixing die to replace the traditional aluminum alloy or high-strength steel anti-collision beam, and the weight is reduced by more than 30%;
2. due to the designability of the fiber composite material, reinforcing ribs with different thicknesses are designed at positions bearing loads with different properties such as impact and bending according to the stress characteristics of the anti-collision beam, so that the impact resistance is enhanced.
3. The invention adopts the one-step molding technology of mixing the continuous fiber prepreg and the chopped fiber sheet material to mold the whole anti-collision beam in one step, thereby avoiding the problem of glue failure of a cementing structure, improving the impact resistance of the anti-collision beam and improving the utilization rate of materials.
The invention can be used as front and back anti-collision beams of various automobiles and anti-collision facilities of other devices due to the characteristics of light weight, high strength and mass production.
Drawings
Figure 1 is a first schematic structural diagram of the present invention,
figure 2 is a side schematic view of one side of the present invention,
figure 3 is a schematic representation of the inner side of the present invention,
figure 4 is a cross-sectional schematic view of a beam of the present invention,
description of reference numerals:
reference numbers in the figures: a cross beam 1; a first impact layer 11; a second impact-resistant layer 12; and a reinforcing rib 13.
Detailed Description
An embodiment of the present invention will be described in detail below with reference to the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the embodiment.
Example (b):
as shown in fig. 1 to 4, the novel composite impact beam and the preparation method thereof provided by the embodiment of the present invention includes a beam 1, where the beam 1 includes at least two impact-proof layers, that is, a first impact-proof layer 11 and a second impact-proof layer 12, the first impact-proof layer 11 is a continuous fiber composite layer, the second impact-proof layer 12 is a chopped fiber composite layer, the continuous fiber composite layer is a fast curing continuous glass fiber epoxy prepreg layer, and the chopped fiber composite layer is a low shrinkage epoxy vinyl sheet mold plastic layer.
The cross section of the beam 1 is in a shape like a Chinese character ji or a Chinese character bow and is symmetrically arranged.
And reinforcing ribs 13 are arranged on the inner side surface of the beam 1, and the reinforcing ribs 13 are reinforcing ribs shaped like Chinese character 'jing' to improve the anti-collision performance.
A preparation method of a novel composite anti-collision beam comprises the following steps:
the method comprises the following steps: designing the number of layers of continuous glass fiber epoxy prepreg layers and the weight of epoxy vinyl sheet-shaped mould plastic layers according to the load size and the impact resistance requirement of each part of the anti-collision beam;
step two: accurately paving and pasting the continuous glass fiber epoxy prepreg in a preforming mold, preparing the preforming body into a beam outer layer, accurately weighing the epoxy vinyl sheet molding compound and cutting the epoxy vinyl sheet molding compound according to the design requirement; and compacting the multilayer prepreg by adopting a vacuum bag compaction method for the continuous glass fiber epoxy prepreg preforming body, preforming a mould and keeping the constant temperature of 30 +/-5 ℃.
Step three: setting parameters of a press to enable the temperature of the die to meet the set requirement, adjusting the pressure of the press to 300T, and adjusting the temperature of a female die of the die to 145 +/-5 ℃ and the temperature of a male die to 150 +/-5 ℃;
step four: sequentially placing the continuous glass fiber epoxy prepreg pre-forming body and the epoxy vinyl sheet mould plastic layer into a mould, closing the mould, maintaining the pressure and curing; the laying position of the epoxy vinyl sheet molding compound is uniformly paved in the female die and accounts for more than 80% of the area of the cavity.
The invention can be used as front and back anti-collision beams of various automobiles and anti-collision facilities of other devices due to the characteristics of light weight, high strength and mass production.
The above disclosure is only for a few specific embodiments of the present invention, however, the present invention is not limited to the above embodiments, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present invention.
Claims (10)
1. The utility model provides a novel compound anticollision roof beam, includes crossbeam (1), its characterized in that: the beam (1) comprises at least two anti-collision layers, namely a first anti-collision layer (11) and a second anti-collision layer (12), wherein the first anti-collision layer (11) is a continuous fiber composite layer, and the second anti-collision layer (12) is a chopped fiber composite layer.
2. A novel composite impact beam as claimed in claim 1, wherein: the continuous fiber composite layer is a fast-curing continuous glass fiber epoxy prepreg layer, and the chopped fiber composite layer is a low-shrinkage epoxy vinyl sheet-shaped mould plastic layer.
3. A novel composite impact beam as claimed in claim 1, wherein: the beam (1) comprises two anti-collision layers, wherein the outer layer is a rapid curing continuous glass fiber epoxy prepreg layer, and the inner layer is a low-shrinkage epoxy vinyl sheet-shaped mould plastic layer.
4. A novel composite impact beam as claimed in claim 1, wherein: the cross section of the beam (1) is in a shape like a Chinese character ji or a Chinese character bow and is symmetrically arranged.
5. A novel composite impact beam as claimed in claim 1, wherein: and reinforcing ribs (13) are arranged on the inner side surface of the cross beam (1).
6. The novel composite impact beam of claim 5, wherein: the reinforcing ribs (13) are reinforcing ribs shaped like Chinese character 'jing'.
7. A method of manufacturing a beam according to any one of claims 1 to 6, characterized in that: the method comprises the following steps:
the method comprises the following steps: designing the number of layers of continuous glass fiber epoxy prepreg layers and the weight of epoxy vinyl sheet-shaped mould plastic layers according to the load size and the impact resistance requirement of each part of the anti-collision beam;
step two: accurately paving and pasting the continuous glass fiber epoxy prepreg in a preforming mold, preparing the preforming body into a beam outer layer, accurately weighing the epoxy vinyl sheet molding compound and cutting the epoxy vinyl sheet molding compound according to the design requirement;
step three: setting parameters of a press to enable the temperature of the die to meet the set requirements;
step four: and sequentially putting the continuous glass fiber epoxy prepreg preformed body and the epoxy vinyl sheet mould plastic layer into a mould, closing the mould, maintaining the pressure and curing.
8. The preparation method of the novel composite anti-collision beam according to claim 7, characterized in that: and in the second step, the continuous glass fiber epoxy prepreg preforming body compacts multiple layers of prepregs by adopting a vacuum bag pressing method, and performs the mould and keeps the constant temperature of 30 +/-5 ℃.
9. The preparation method of the novel composite anti-collision beam according to claim 7, characterized in that: the pressure of the middle press in the third step is adjusted to 300T, the temperature of a female die of the die is 145 +/-5 ℃, and the temperature of a male die is 150 +/-5 ℃.
10. The preparation method of the novel composite anti-collision beam according to claim 7, characterized in that: in the fourth step, the laying position of the epoxy vinyl sheet molding compound is uniformly paved in the female die and occupies more than 80% of the area of the cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011584018.2A CN112849066A (en) | 2020-12-28 | 2020-12-28 | Novel composite anti-collision beam and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011584018.2A CN112849066A (en) | 2020-12-28 | 2020-12-28 | Novel composite anti-collision beam and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112849066A true CN112849066A (en) | 2021-05-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011584018.2A Pending CN112849066A (en) | 2020-12-28 | 2020-12-28 | Novel composite anti-collision beam and preparation method thereof |
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| Country | Link |
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| CN (1) | CN112849066A (en) |
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| JPH04208417A (en) * | 1990-11-30 | 1992-07-30 | Nippon Steel Corp | Fiber reinforced thermoplastic resin formed article and forming method thereof |
| CN101050283A (en) * | 2007-04-30 | 2007-10-10 | 武汉理工大学 | Composite material of fiber enganced latex of polymer, and preparation method |
| CN102555958A (en) * | 2010-12-06 | 2012-07-11 | 现代自动车株式会社 | High intensity plastic back beam formed by combining various glass fibers |
| US20160167609A1 (en) * | 2014-12-11 | 2016-06-16 | Shape Corp. | Pultruded beam, and apparatus and methods for manufacturing |
| CN106114429A (en) * | 2016-07-22 | 2016-11-16 | 吉林大学 | Composite construction bumper collision prevention girders and manufacture method |
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| CN110386094A (en) * | 2019-06-28 | 2019-10-29 | 凌云工业股份有限公司上海凌云汽车研发分公司 | A kind of the automobile buffer beam energy-absorption box and preparation method of composite molding |
| CN209852247U (en) * | 2019-04-28 | 2019-12-27 | 上海卡豹汽车科技有限公司 | Front and rear anti-collision beam made of thermoplastic continuous fibers for automobile |
| CN111284056A (en) * | 2020-05-08 | 2020-06-16 | 苏州银禧新能源复合材料有限公司 | Forming process method for upper cover of battery box |
| CN111605503A (en) * | 2020-04-14 | 2020-09-01 | 上海凌云工业科技有限公司凌云汽车技术分公司 | Automobile anti-collision protection component assembly and preparation method thereof |
| CN111730876A (en) * | 2020-07-10 | 2020-10-02 | 苏州银禧新能源复合材料有限公司 | Forming process of upper cover of composite battery box |
| CN112009217A (en) * | 2020-07-23 | 2020-12-01 | 中国第一汽车股份有限公司 | Composite material vehicle door anti-collision beam and preparation method thereof |
-
2020
- 2020-12-28 CN CN202011584018.2A patent/CN112849066A/en active Pending
Patent Citations (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04208417A (en) * | 1990-11-30 | 1992-07-30 | Nippon Steel Corp | Fiber reinforced thermoplastic resin formed article and forming method thereof |
| CN101050283A (en) * | 2007-04-30 | 2007-10-10 | 武汉理工大学 | Composite material of fiber enganced latex of polymer, and preparation method |
| CN102555958A (en) * | 2010-12-06 | 2012-07-11 | 现代自动车株式会社 | High intensity plastic back beam formed by combining various glass fibers |
| CN107264457A (en) * | 2013-12-10 | 2017-10-20 | 赛史品威奥（唐山）结构复合材料有限公司 | With the I-beam for strengthening crust |
| US20160167609A1 (en) * | 2014-12-11 | 2016-06-16 | Shape Corp. | Pultruded beam, and apparatus and methods for manufacturing |
| CN106114429A (en) * | 2016-07-22 | 2016-11-16 | 吉林大学 | Composite construction bumper collision prevention girders and manufacture method |
| CN107097742A (en) * | 2017-04-28 | 2017-08-29 | 深圳市科聚新材料有限公司 | Automobile anti-collision energy-absorbing structure and manufacturing process thereof |
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| CN111284056A (en) * | 2020-05-08 | 2020-06-16 | 苏州银禧新能源复合材料有限公司 | Forming process method for upper cover of battery box |
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Application publication date: 20210528 |
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