CN109625098A - Floor and its manufacturing method after a kind of integrated form vehicle body - Google Patents
Floor and its manufacturing method after a kind of integrated form vehicle body Download PDFInfo
- Publication number
- CN109625098A CN109625098A CN201811312397.2A CN201811312397A CN109625098A CN 109625098 A CN109625098 A CN 109625098A CN 201811312397 A CN201811312397 A CN 201811312397A CN 109625098 A CN109625098 A CN 109625098A
- Authority
- CN
- China
- Prior art keywords
- fiber reinforced
- reinforced thermoplastic
- composite material
- floor
- spare tyre
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/20—Floors or bottom sub-units
-
- 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
- B29C70/68—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts by incorporating or moulding on preformed parts, e.g. inserts or layers, e.g. foam blocks
- B29C70/74—Moulding material on a relatively small portion of the preformed part, e.g. outsert moulding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D29/00—Superstructures, understructures, or sub-units thereof, characterised by the material thereof
- B62D29/04—Superstructures, understructures, or sub-units thereof, characterised by the material thereof predominantly of synthetic material
- B62D29/043—Superstructures
-
- 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
- B29L2031/30—Vehicles, e.g. ships or aircraft, or body parts thereof
- B29L2031/3005—Body finishings
- B29L2031/3017—Floor coverings
Abstract
The invention discloses floor and its manufacturing methods after a kind of integrated form vehicle body, floor body including compression molding, the spare tyre pond of recess is formed among floor body using long fiber reinforced thermoplastic composites, spare tyre installation point is provided in the middle part of the spare tyre pond, there is the buffering step collectively formed using continuous fiber reinforced thermoplastic composite material and long fiber reinforced thermoplastic composites around the front side in spare tyre pond and left and right sides molding, buffering step top surface surrounding has the preceding reinforcing beam constituted using continuous fiber reinforced thermoplastic composite material, right vertical beam, reinforcing beam afterwards, left stringer.The present invention passes through the combination using long fiber composites and continuous fiber composite material, the former good fluidity and the latter's intensity is high, modulus is high feature are organically combined, take into account labyrinth and high-intensitive requirement, the integrated manufacture for realizing preceding reinforcing beam, buffering step, spare tyre pond, right vertical beam, rear reinforcing beam, spare tyre installation point, left stringer, reduce process, reduce number of molds, reduces costs.
Description
Technical field
The present invention relates to floor and its manufacturers after the manufacturing field of auto parts and components more particularly to a kind of integrated form vehicle body
Method.
Background technique
In recent years, energy conservation, emission reduction, consumption reduction pressure under, the manufacture of automobile component is gradually to lightweight, integrated direction
Development.Fiber-reinforced resin matrix compound material has the characteristics that excellent specific strength, specific modulus, corrosion-resistant, energy-absorbing, light in automobile
Quantization field plays increasingly important role.Fiber reinforced thermolplastic composite material is flowable molten at processing temperatures
Melt state, can flow in a mold full of type chamber, the complicated integrated component of figuration manufacture.
Floor component after body of a motor car contains the connected multiple components of spare tyre pond and body frame.It is running at high speed
Under operating condition, be easy to happen vibration in the automobile rear floor all parts for being mounted with spare tyre, to the NVH performance of vehicle, comfort and
Safety adversely affects.On the other hand, existing vehicle body rear floor structure is complicated, and manufacturing process is more, such as Chinese patent
CN201110449238.9, the method for disclosing part production in spare tyre pond in a kind of automobile rear floor, the automobile spare tire pond part are raw
Production method needs to undergo 4 drawing, shaping punching, trimming and piercing die, flanging and restriking processes.
In the manufacturing method of current automobile rear floor component, each process requires special mold or tooling, manufacture
It is at high cost.Since all parts are formed separately, with that after vehicle body in floor other component connection procedure, there are positioning difficulties is high,
A series of problems, such as connection reliability is poor, NVH performance is poor.
Summary of the invention
The purpose of invention be in view of the deficiencies of the prior art, provide it is a kind of have integrated level is high, manufacturing process is few, manufacture at
Floor and its manufacturing method after this low vehicle body meet the needs of high quality manufacture in floor after lightweight, integrated form vehicle body.
To achieve the goals above, present invention employs the following technical solutions.
Floor after a kind of integrated form vehicle body, the floor body including compression molding, it is characterised in that: adopted among floor body
The spare tyre pond of recess is formed with long fiber reinforced thermoplastic composites, is provided with spare tyre installation point in the middle part of the spare tyre pond,
Have around the front side in spare tyre pond and left and right sides molding and uses continuous fiber reinforced thermoplastic composite material and long fiber reinforcement
The buffering step that thermoplastic composite collectively forms, buffering step front end of the top surface have multiple using continuous fiber reinforced thermoplastic
Preceding reinforcing beam, the buffering step surface right side wall of condensation material composition have using continuous fiber reinforced thermoplastic composite material composition
Right vertical beam, buffering step top surface rear end have the rear reinforcing beam constituted using continuous fiber reinforced thermoplastic composite material, buffering
Step surface left side wall, which has, uses the molding left stringer of continuous fiber reinforced thermoplastic composite material structure, and the spare tyre installation point is
It is embedded in the metal insert at spare tyre pond center.
The manufacturing method on floor after a kind of integrated form vehicle body, which employs following steps:
(1) by 40~70 parts of thermoplastic resin, 1~30 part of additive, 30~60 parts of fiber, it is added sequentially to flexible shear
In double screw extruder, heated plasticizing, fibre resin are compound, form long fiber reinforced thermoplastic composites extruded stock；
(2) by the long fiber reinforced thermoplastic composites extruded stock and continuous fiber reinforced thermoplastic composite material piece
Material, according to the weight and length on floor after different automobile types vehicle body, be cut into corresponding long fiber reinforced thermoplastic composites and
Continuous fiber reinforced thermoplastic composite material, and the long fiber reinforced thermoplastic composites and continuous fiber reinforcement are hot
Plastic composites heating carries out hot mastication；
(3) by the metal insert be installed on after integrated form vehicle body spare tyre installation point in plate forming mold；
(4) long fiber reinforced thermoplastic composites and continuous fiber reinforced thermoplastic composite material heating are carried out
Hot mastication；
(5) by after integrated form vehicle body plate forming mold is heated to 40~80 DEG C, and the long fibre of hot mastication state is increased
Heat-flash plastic composites are placed on spare tyre pond position, continuous fiber reinforced thermoplastic composite material is placed on to preceding reinforcing beam,
Right vertical beam part, rear reinforcing beam and left stringer position；
(6) mold is closed, and the forming of composite material mold filling, pressure maintaining is 1~2 minute cooling, and die sinking is taken out, and obtaining having finally makes
With flooring product after desired integrated form vehicle body.
Further, the continuous fiber reinforced thermoplastic composite material sheet material is by glass fibre, carbon fiber, flaxen fiber
It is one or more of in equal plant fibers, basalt fibre to be used as reinforcing material, by acrylic resin, polyamide one of
Or both combination as resin matrix, the flaky composite material of formation.
Further, the thermoplastic resin is the combination of one of acrylic resin, polyamide or both；Add
Adding agent is one or more of fire retardant, antioxidant, lubricant, coupling agent；Fiber is glass fibre, carbon fiber, plant
One or more of fiber, basalt fibre.
Further, the fibre length of the long fiber reinforced thermoplastic composites extruded stock is 5~60mm.
Further, the long fiber reinforced thermoplastic composites and continuous fiber reinforced thermoplastic composite material are added
The temperature that heat carries out hot mastication is 210~300 DEG C.
Further, the fiber in the continuous fiber reinforced thermoplastic composite material is unidirectional continuous fiber, continuous fibre
Tie up one of fabric or both combination.
Further, the metal insert is the fixed required nut in floor spare tyre pond after spare tyre and vehicle body.
Compared with prior art, the present invention have it is following a little:
The present invention by utilize long fiber composites and continuous fiber composite material combination, by fibre length be 5~
The good feature of the composite fluidity of 60mm and the organic knot of feature that continuous fiber reinforced composite materials intensity is high, modulus is high
Close, take into account labyrinth and it is high-intensitive require, realize preceding reinforcing beam, buffering step, spare tyre pond, right vertical beam, rear reinforcing beam, standby
The integrated manufacture of tire installation point, left stringer, reduces process, reduces number of molds, reduce costs, and each portion
Secondary type of attachment is not present between point, to be that entire rear floor provides preferable NVH performance, and the present invention proposes one kind
Method for making floor after integrated form vehicle body completes the manufacture on an integrated rear floor, manufacture efficiency height, product in 2 minute period
Consistency is good, can satisfy auto industry high-volume manufacture and requires.
Detailed description of the invention:
After a kind of integrated form vehicle body of Fig. 1 present invention after the vehicle body of floor and its manufacturing method floor structural schematic diagram
Specific embodiment:
Hereinafter, the specific embodiment that present invention will be described in detail with reference to the accompanying.Those skilled in the art are according to this specification
Record can be easily realized by the present invention.In addition, structure depicted in definition that this specification is given and attached drawing, ratio,
Size, direction etc., for the purpose convenient for explanation, for skilled in the art realises that the present invention, is not limited to this
Enforceable qualifications are invented, therefore do not have technical essential meaning.In addition, the modification of any structure, proportionate relationship
Change or the adjustment of size etc. should all fall in this as long as not influencing the effect of the invention that can be generated and the purpose that can reach
In the range of inventing revealed technology contents and capable of covering.
Below in conjunction with attached drawing, description of specific embodiments of the present invention, as shown in Figure 1:
Floor after a kind of integrated form vehicle body, including floor main body 1, using long fiber reinforcement heat among the floor body 1
Plastic composites form the spare tyre pond 2 of recess, are provided with spare tyre installation point 3 in the middle part of the spare tyre pond 2, surround spare tyre pond 2
Front side and the left and right sides molding have use continuous fiber reinforced thermoplastic composite material and long fiber reinforcement thermoplastic composite
The buffering step 4 that material collectively forms, buffering 4 front end of the top surface of step, which has, uses continuous fiber reinforced thermoplastic composite material structure
At preceding reinforcing beam 11, buffering 3 top surface right side wall of step have using continuous fiber reinforced thermoplastic composite material constitute the right side
Stringer 13, buffering 4 top surface rear end of step have the rear reinforcing beam 12 constituted using continuous fiber reinforced thermoplastic composite material, delay
Rushing 4 left side of face wall of step has using the molding left stringer 14 of continuous fiber reinforced thermoplastic composite material structure, the spare tyre peace
Decorateeing 3 is the metal insert for being embedded in 2 center of spare tyre pond, and the metal insert is that spare tyre and the spare tyre pond 2 fixation are required
Nut.
The manufacturing method on floor after a kind of integrated form vehicle body, comprising the following steps:
(1) by 25.7 parts of 50 parts of acrylic resin, 0.2 part of antioxidant, 0.1 part of lubricant, fire retardant addition twin-screws
In extruder, the temperature in double screw extruder is set 210-240 DEG C, acrylic resin and additive heat through twin-screw,
Shearing, plasticizing are viscous state resin, by 50 parts of continuous glass fibre after the addition section flexible shear double screw extruder, continuously
Fiber coats viscous state resin, shearing severing, dispersion mixing in twin-screw, compound with acrylic resin, forms 40mm fiber
The long fibre enhanced polypropylene composite material extruded stock of length；
(2) by long fibre enhanced polypropylene composite material extruded stock according to the weight and length on floor after the vehicle body of different automobile types
Degree is cut into corresponding long fibre enhanced polypropylene composite material, meanwhile, by carbon fibre fabric reinforced polypropylene compound material piece
The bar material that material is cut into 1000 × 50 × 2mm wide obtains carbon fibre fabric reinforced polypropylene compound material, both heats
To 230 DEG C, heat preservation 10 minutes spare；
(3) by after the vehicle body being placed on 2000 t hydraulic press plate forming mold is heated to 60 DEG C, and metal insert is put
Be placed in after integrated form vehicle body 3 position of spare tyre installation point in plate forming mold；
(4) will heat spare roving glass fiber fiber reinforced polypropylene composite material be placed on 2 region of spare tyre pond, will heat it is standby
Carbon fibre fabric reinforced polypropylene compound material is laid in preceding reinforcing beam 11,13 part of right vertical beam, rear reinforcing beam 12, Zuo Zong
14 position of beam；
(5) in hydraulic press mold be closed, since mold body has been heated, and Long Glass Fiber Reinforced PP Composite and
Carbon fibre fabric reinforced polypropylene compound material is the flowable state of softening, so Long Glass Fiber Reinforced PP Composite
It can be shaped to spare tyre pond 2 with mold filling, carbon fibre fabric reinforced polypropylene compound material mold filling with mold filling at can form preceding reinforcing beam
11, right vertical beam 13, rear reinforcing beam 12,14 part of left stringer, Long Glass Fiber Reinforced PP Composite increase with for carbon fibre fabric
Strong PP composite material squeezes in a mold to be integrally formed 4,2000 tons of buffer table rank press pressure maintaining 1 minute, and product is in mould
It is taken out after cooling and shaping in tool, the fiber reinforced polypropylene composite material collection that the wall thickness for obtaining meeting final requirement is 3mm
Flooring product after accepted way of doing sth vehicle body.
The present invention also provides a kind of another embodiments of the manufacturing method on floor after integrated form vehicle body, including following step
It is rapid:
(1) by 20.5 parts of 40 parts of polyamide, 0.3 part of antioxidant, 0.2 part of lubricant, fire retardant addition twin-screws
In extruder, the temperature in double screw extruder is set 250-280 DEG C, polyamide and additive heat through twin-screw,
Shearing, plasticizing are viscous state resin, by 60 parts of continuous glass fibre after the addition section flexible shear double screw extruder, continuously
Fiber coats viscous state resin, shearing severing, dispersion mixing in twin-screw, compound with polyamide, forms 30mm fiber
The continuous fiber reinforcing polyamide composite material extruded stock of length；
(2) by continuous fiber reinforcing polyamide composite material extruded stock, according to floor after the vehicle body of different automobile types weight and
It is spare that length is cut into corresponding continuous fiber reinforcing polyamide composite material, meanwhile, glass fabric reinforced polyamide is answered
The bar material that condensation material sheet material is cut into 1000 × 50 × 3mm wide obtains glass fabric reinforced polyamide composite material,
The two is heated to 280 DEG C, and heat preservation 10 minutes spare；
(3) by after the vehicle body being placed on 3000 t hydraulic press plate forming mold is heated to 80 DEG C, and metal insert is put
Be placed in after integrated form vehicle body 3 position of spare tyre installation point in plate forming mold；
(4) will heat spare roving glass fiber fibre-reinforced polyamide composite material be placed on 2 region of spare tyre pond, will heat it is standby
Glass fabric reinforced polyamide composite material laying is on preceding reinforcing beam 11,13 part of right vertical beam, rear reinforcing beam 12, a left side
14 position of stringer；
(5) mold is closed in hydraulic press, since mold body has been heated, and roving glass fiber fibre-reinforced polyamide composite wood
Material and glass fabric reinforced polyamide composite material are the flowable state of softening, so roving glass fiber fiber reinforcement polyamides
Amine composite material can shape mold filling with mold filling and be shaped to spare tyre pond 2, and glass fabric reinforced polyamide composite material can fill
For contour forming at preceding reinforcing beam 11, right vertical beam 13, rear reinforcing beam 12,14 part of left stringer, roving glass fiber fibre-reinforced polyamide is compound
Material squeezes be integrally formed 4,3000 tons of buffer table rank pressures in a mold with for glass fabric reinforced polyamide composite material
Machine pressure maintaining 1 minute, product took out after cooling and shaping in a mold, the glass that the wall thickness for obtaining meeting final requirement is 3mm
Flooring product after fibre-reinforced polyamide composite material integrated form vehicle body.
Further, the continuous fiber reinforced thermoplastic composite material sheet material is by glass fibre, carbon fiber, flaxen fiber
It is one or more of in equal plant fibers, basalt fibre to be used as reinforcing material, by acrylic resin, polyamide one of
Or both combination as resin matrix, the flaky composite material of formation.
Further, the thermoplastic resin is the combination of one of acrylic resin, polyamide or both；Add
Adding agent is one or more of fire retardant, antioxidant, lubricant, coupling agent；Fiber is glass fibre, carbon fiber, plant
One or more of fiber, basalt fibre.
Further, the fibre length of the long fiber reinforced thermoplastic composites extruded stock is 5~60mm.
Further, the long fiber reinforced thermoplastic composites and continuous fiber reinforced thermoplastic composite material are added
The temperature that heat carries out hot mastication is 210~300 DEG C.
Further, the fiber in the continuous fiber reinforced thermoplastic composite material is unidirectional continuous fiber, continuous fibre
Tie up one of fabric or both combination.
Further, the metal insert is the fixed required nut in floor spare tyre pond after spare tyre and vehicle body.
The present invention by utilize long fiber composites and continuous fiber composite material combination, by fibre length be 5~
The good feature of the composite fluidity of 60mm and the organic knot of feature that continuous fiber reinforced composite materials intensity is high, modulus is high
It closes, takes into account labyrinth and required with high intensity, realize preceding reinforcing beam 11, buffering step 4, spare tyre pond 2, right vertical beam 13, add afterwards
The integrated manufacture of brutal 12, spare tyre installation point 3, left stringer 14, reduces process, reduces number of molds, reduce
Cost, and secondary type of attachment is not present between various pieces, to be that entire rear floor provides preferable NVH performance.
For those skilled in the art, revealed structure and principle various other phases can be obtained according to the present invention
The change and deformation answered, and all these change and deformation belongs to protection category of the invention.
Claims (8)
1. floor after a kind of integrated form vehicle body, the floor body including compression molding, it is characterised in that: used among floor body
Long fiber reinforced thermoplastic composites form the spare tyre pond of recess, are provided with spare tyre installation point in the middle part of the spare tyre pond, enclose
Have around the front side in spare tyre pond and left and right sides molding using continuous fiber reinforced thermoplastic composite material and long fiber reinforcement heat
The buffering step that plastic composites collectively form, buffering step front end of the top surface have compound using continuous fiber reinforced thermoplastic
Preceding reinforcing beam, the buffering step surface right side wall of material composition have the right side constituted using continuous fiber reinforced thermoplastic composite material
Stringer, buffering step top surface rear end have the rear reinforcing beam constituted using continuous fiber reinforced thermoplastic composite material, buffer table
Terrace left side wall, which has, uses the molding left stringer of continuous fiber reinforced thermoplastic composite material structure, and the spare tyre installation point is edge
Metal insert embedded in spare tyre pond center.
2. the manufacturing method on floor after a kind of integrated form vehicle body, which is characterized in that using following step:
(1) by 40~70 parts of thermoplastic resin, 1~30 part of additive, 30~60 parts of fiber, the double spiral shells of flexible shear are added sequentially to
In bar extruder, heated plasticizing, fibre resin are compound, form long fiber reinforced thermoplastic composites extruded stock；
(2) by the long fiber reinforced thermoplastic composites extruded stock and continuous fiber reinforced thermoplastic composite material sheet material,
According to the weight and length on floor after different automobile types vehicle body, it is cut into corresponding long fiber reinforced thermoplastic composites and continuous
Fiber reinforced thermolplastic composite material, and by the long fiber reinforced thermoplastic composites and continuous fiber reinforced thermoplastic
Composite material heating carries out hot mastication；
(3) by the metal insert be installed on after integrated form vehicle body spare tyre installation point in plate forming mold；
(4) by after integrated form vehicle body plate forming mold is heated to 40~80 DEG C, by the long fiber reinforcement heat of hot mastication state
Plastic composites are placed on spare tyre pond position, continuous fiber reinforced thermoplastic composite material are placed on to preceding reinforcing beam, is right vertical
The position of beam portion point, rear reinforcing beam and left stringer；
(5) mold is closed, and the forming of composite material mold filling, pressure maintaining is 1~2 minute cooling, and die sinking is taken out, and obtains that there is final use to want
Flooring product after the integrated form vehicle body asked.
3. the manufacturing method on floor after a kind of integrated form vehicle body according to claim 2, special to be:
The continuous fiber reinforced thermoplastic composite material sheet material is by plant fibers such as glass fibre, carbon fiber, flaxen fiber, profound
It is one or more of in military rock fiber to be used as reinforcing material, by acrylic resin, polyamide one of or both group
Cooperation is resin matrix, the flaky composite material of formation.
4. the manufacturing method on floor after a kind of integrated form vehicle body according to claim 2, it is characterised in that: the thermoplasticity
Resin is the combination of one of acrylic resin, polyamide or both；Additive is fire retardant, antioxidant, lubrication
One or more of agent, coupling agent；Fiber is one of glass fibre, carbon fiber, plant fiber, basalt fibre or several
Kind.
5. the manufacturing method on floor after a kind of integrated form vehicle body according to claim 2, it is characterised in that:
The fibre length of the long fiber reinforced thermoplastic composites extruded stock is 5~60mm.
6. the manufacturing method on floor after a kind of integrated form vehicle body according to claim 2, it is characterised in that:
It is soft that the long fiber reinforced thermoplastic composites and continuous fiber reinforced thermoplastic composite material heating are subjected to high temperature
The temperature of change is 210~300 DEG C.
7. the manufacturing method on floor after a kind of integrated form vehicle body according to claim 2, it is characterised in that: the continuous fibre
Fiber in dimension enhancing thermoplastic composite is one of unidirectional continuous fiber, continuous-filament woven fabric or both combination.
8. the manufacturing method on floor after a kind of integrated form vehicle body according to claim 2, it is characterised in that: the metal is embedding
Part is the fixed required nut in floor spare tyre pond after spare tyre and vehicle body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811312397.2A CN109625098A (en) | 2018-11-06 | 2018-11-06 | Floor and its manufacturing method after a kind of integrated form vehicle body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811312397.2A CN109625098A (en) | 2018-11-06 | 2018-11-06 | Floor and its manufacturing method after a kind of integrated form vehicle body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109625098A true CN109625098A (en) | 2019-04-16 |
Family
ID=66067355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811312397.2A Pending CN109625098A (en) | 2018-11-06 | 2018-11-06 | Floor and its manufacturing method after a kind of integrated form vehicle body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109625098A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110861318A (en) * | 2019-10-25 | 2020-03-06 | 中航复合材料有限责任公司 | Carbon fiber automobile front floor compression molding method |
| CN111845971A (en) * | 2019-04-30 | 2020-10-30 | 广州汽车集团股份有限公司 | Spare tire compartment, manufacturing method of spare tire compartment and automobile |
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| CN207579973U (en) * | 2017-11-24 | 2018-07-06 | 上海华普汽车有限公司 | A kind of automotive floor panel structure and its electric vehicle |
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| JP2013071712A (en) * | 2011-09-29 | 2013-04-22 | Hayashi Engineering Inc | Molded article and molding method thereof |
| KR20140020652A (en) * | 2012-08-10 | 2014-02-19 | 엘지전자 주식회사 | Automobile |
| CN104960581A (en) * | 2015-07-20 | 2015-10-07 | 奇瑞汽车股份有限公司 | Automobile rear floor made from composite materials and manufacturing method of automobile rear floor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111845971A (en) * | 2019-04-30 | 2020-10-30 | 广州汽车集团股份有限公司 | Spare tire compartment, manufacturing method of spare tire compartment and automobile |
| CN110861318A (en) * | 2019-10-25 | 2020-03-06 | 中航复合材料有限责任公司 | Carbon fiber automobile front floor compression molding method |
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Application publication date: 20190416 |