CN106626433A - Automobile battery box made of multi-axial hybrid fiber composite material and manufacturing method of automobile battery box - Google Patents
Automobile battery box made of multi-axial hybrid fiber composite material and manufacturing method of automobile battery box Download PDFInfo
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- CN106626433A CN106626433A CN201611128954.6A CN201611128954A CN106626433A CN 106626433 A CN106626433 A CN 106626433A CN 201611128954 A CN201611128954 A CN 201611128954A CN 106626433 A CN106626433 A CN 106626433A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/34—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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—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
- B29C70/46—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs
- B29C70/48—Shaping or impregnating by compression not applied for producing articles of definite length, i.e. discrete articles using matched moulds, e.g. for deforming sheet moulding compounds [SMC] or prepregs and impregnating the reinforcements in the closed mould, e.g. resin transfer moulding [RTM], e.g. by vacuum
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2263/00—Use of EP, i.e. epoxy resins or derivatives thereof as reinforcement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2307/00—Use of elements other than metals as reinforcement
- B29K2307/04—Carbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2309/00—Use of inorganic materials not provided for in groups B29K2303/00 - B29K2307/00, as reinforcement
- B29K2309/08—Glass
-
- 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
- B29L2031/712—Containers; Packaging elements or accessories, Packages
- B29L2031/7146—Battery-cases
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention belongs to the technical field of automobile parts and provides an automobile battery box made of a multi-axial hybrid fiber composite material. The automobile battery box is made of a composite material which is prepared by treating carbon fibers and glass fibers through a multi-axial warp knitting process, takes a multi-axial hybrid warp knitted fabric as an enhanced material and takes epoxy resin as a base material; the multi-axial hybrid warp knitted fabric comprises eight parallel yarn laying layers which are arrayed in sequence; laying layer angles of the laying layers are 0 degree, 45 degrees, 90 degrees and -45 degrees; each laying layer angle is formed by the two laying layers; the laying layers with the angles of 0 degree and 90 degrees are made of carbon fiber materials; the laying layers with the angles of 45 degrees and -45 degrees are made of glass fiber materials. The laying layers with the angles of 0 degree and 90 degrees are of a main stressing direction; the laying layers with the angles of 45 degrees and -45 degrees are of a non-stressing direction. The automobile battery box provided by the invention has the beneficial effects that compared with a battery box made of traditional steel or high-density plastic, the weight of the prepared battery box is reduced by 30 percent; compared with a pure carbon fiber battery box, the cost can be reduced by 40 percent. Compared with a laminated structure, the production efficiency is higher.
Description
Technical field
The invention belongs to auto parts technical field, more particularly to a kind of polyaxial fiber hybrid composite automobile batteries
Box and its manufacture method.
Background technology
Automotive light weight technology as automobile now and future development an important directions, increasingly by designers'
Concern, wherein automotive light weight technology a important channel is then to adopt light material.Carbon fibre composite has excellent power
The features such as learning performance, low-density, gradually replaces steel to be widely used in automobile industry.In car battery box application aspect,
CN105014988 discloses the manufacture method of a kind of carbon fiber car battery box and carbon fiber car battery box, using carbon fiber
Laminate structures composite replaces steel material, while rigidity, intensity requirement is met, reduces the quality of battery case.But
Due to carbon fiber costly, if battery case is all prepared with carbon fibre composite, cost will be greatly improved, while laminated knot
Structure fiber laying process is cumbersome, and preparation time is longer, and production efficiency is relatively low.
The content of the invention
There is the loaded down with trivial details defect of laminate structures fiber laying process to solve prior art, the present invention provides a kind of polyaxial
Fiber hybrid composite car battery box and its manufacture method.
To solve above-mentioned technical problem, the technical solution adopted in the present invention is:A kind of polyaxial assorted fibre composite wood
Material car battery box, its material is, polyaxial Jing is mixed with what carbon fiber and glass fibre Jing multi-shaft warp knitting techniques were prepared into
Braid is reinforcing material, the composite with epoxy resin as base material;
The polyaxial knitted fabric that mixes is including eight layers of parallel yarn laying being arranged in order, the laying of the laying
Angle is 0 °, 45 °, 90 ° and -45 °, and each laying angle has two layings, wherein 0 ° and 90 ° of layings are carbon fibre material,
Wherein 45 ° and -45 ° is glass fiber material.Wherein 0 ° and 90 ° of layings are main Impact direction, and 45 ° and -45 ° of layings are received for non-
Force direction.
Preferably, described carbon fiber is T300-3k, stretch modulus is 230Gpa, and tensile strength 3.53Gpa is described
Glass fibre is E glass fibres, stretch modulus 74GPa, and tensile strength 3.5Gpa, described epoxy resin is NPEL-128 epoxies
Resin.
Further, described reinforcing material and base material volume ratio are 1:1.
The manufacture method of above-mentioned polyaxial fiber hybrid composite car battery box, comprises the steps:
(1) mould pretreatment:Wiped with releasing agent in die surface, be easy to the demoulding;
(2) fabric lays:The polyaxial knitted fabric that mixes is laid in die cavity according to laying angle is smooth, it is not allowed
Fold, and pare off unnecessary leftover pieces;
(3) matched moulds:Upper mould is closed up with lower mould, peripheral sealing fastening;
(4) resin injection:Epoxy resin and curing agent are well mixed, are then injected from mould glue-feeder, fully infiltration
It is polyaxial to mix knitted fabric;
(5) solidify:Mould is placed in into heating furnace carries out temperature control solidification;
(6) demoulding:Upper and lower mould is separated, battery case is spun off from mould and is checked that product has zero defect;
(7) post-process:Mould and glue injection equipment are cleared up with clean mould agent.
Specifically, step (1) is wiped more than 3 times in die surface with releasing agent, per minor tick 15-20min, and according to one
Individual direction wipes.
Preferably, the epoxy resin and curing agent mass ratio described in step (4) is 1:0.005~0.1, by epoxy resin
After being well mixed with curing agent, 20-30min is stood.
Further, the injection pressure for injecting epoxy resin and curing agent from mould glue-feeder in step (4) is 0.1~
0.2MPa, injecting glue to gum outlet does not have bubble to occur, and stops injecting glue.
Preferably, the temperature control condition of cure described in step (5) is, 40~50 DEG C of temperature, hardening time is 1.5~2h.
Preferably, the clean mould agent described in step (7) is acetone.
Beneficial effect:1st, the present invention provide polyaxial fiber hybrid composite car battery box, using 8 layers of carbon fibre/
The multi-axial tricot that glass mixes as fibre reinforced materials, epoxy resin as matrix, prepared battery case compared with
Conventional steel or high-density plastic's battery case, quality mitigates 30%.
2nd, the polyaxial fiber hybrid composite car battery box that the present invention is provided, reinforcing material is using carbon fiber and glass
Glass fiber bi-material, compared with pure carbon fiber battery case, cost can reduce by 40%.
3rd, the polyaxial fiber hybrid composite car battery box that the present invention is provided, using multi-shaft warp knitting weaving process,
The achievable mechanization global formation of braiding process, the successively placement process cumbersome compared with common laminate structures, production efficiency is more
It is high;Multi-axial tricot possesses more stable structural behaviour than laminate, compared with common laminate structures battery case, is ensureing edge
While the excellent mechanical performance of fiber reinforcement direction, it is not easy to lamination occur, interlayer performance is more preferable.
4th, the polyaxial fiber hybrid composite car battery box that the present invention is provided, can be according to different automobile types battery case
Structural requirement, paving location, the laying order, ply stacking angle and laying depth to two kinds of reinforcing fibers is arbitrarily adjusted, can
Design is strong.
Description of the drawings
Fig. 1 is battery case dimensional structure diagram;
Fig. 2 is battery case reverse structure schematic;1.1 is base plate in Fig. 1 and Fig. 2, and 2.1 is waling, and 2.2 are horizontal stroke
To reinforcement.
Fig. 3 mixes knitted fabric structural representation for polyaxial;3.1 is 90 ° of stuffer wefts in Fig. 3, and 3.2 is 45 ° of stuffer wefts,
3.3 is -45 ° of stuffer wefts, and 3.4 is bundled yarn, and 3.5 is laying-in yarn.
Fig. 4 is the polyaxial ply angles schematic diagram for mixing knitted fabric of embodiment 1;4.1 is 0 ° of direction of carbon fiber in Fig. 4
Laying, 4.2 is 45 ° of direction layings of glass fibre, and 4.3 is -45 ° of direction layings of glass fibre, and 4.4 is 90 ° of direction pavings of carbon fiber
Layer, 4.5 is 90 ° of direction layings of carbon fiber, and 4.6 is -45 ° of direction layings of glass fibre, and 4.7 is 45 ° of direction layings of glass fibre,
4.8 is 0 ° of direction laying of carbon fiber, and 4.9 is bundled yarn.
Fig. 5 is the polyaxial ply angles schematic diagram for mixing knitted fabric of embodiment 2;5.1 carbon fiber, 0 ° of laying in Fig. 5,
5.2 90 ° of carbon fiber direction layings, 5.3-45 ° of glass fibre direction layings, 5.4 45 ° of glass fibre direction layings, 5.5 glass fibers
45 ° of direction layings of dimension, 5.6-45 ° of glass fibre direction layings, 5.7 90 ° of carbon fiber direction layings, 5.8 0 ° of carbon fiber directions paving
Layer, 5.9 are binding yarn.
Fig. 6 is the laminate structures fabric construction schematic diagram of embodiment 3;6.1 carbon fiber, 0 ° of direction laying, 6.2 carbon fibers in Fig. 6
90 ° of direction layings, 6.3-45 ° of carbon fiber direction layings, 6.4 45 ° of carbon fiber direction layings, 6.5 45 ° of carbon fiber direction layings,
6.6-45 ° of carbon fiber direction layings, 6.7 90 ° of carbon fiber direction layings, 6.8 0 ° of carbon fiber direction layings.
Fig. 7 is RTM system structure diagrams;7.1 is air compressor machine in Fig. 7, and 7.2 is injection machine, and 7.31 is fixing bolt,
7.32 is gum-injecting port, and 7.33 is upper mould, and 7.34 is gum outlet, and 7.35 is lower mould, and 7.4 is polyaxial assorted fibre knitted fabric,
7.5 is that resin receives bucket.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, make further detailed below in conjunction with example
Description.
Embodiment 1
In a first aspect, this example provide a kind of polyaxial fiber hybrid composite car battery box, structure such as Fig. 1,
Include base plate 1.1 shown in Fig. 2, be arranged on the waling 2.1 and cross reinforcing 2.2 of the bottom of base plate 1.1.Using polyaxial
Warp knit technique, using carbon fiber and glass fibre as reinforcing material, be prepared into it is polyaxial mix knitted fabric, by RTM be molded
Epoxy resin is injected mould by technique, and infiltration fabric and curing molding are composite material automobile battery case.
The composite material automobile battery case that present example is provided, hybrid buildup material adopts multi-shaft warp knitting structure, knot
Configuration formula is as shown in Figure 3.It is polyaxial to mix in warp knit structure comprising 3.1,90 ° of stuffer wefts, 3.2,45 ° of stuffer wefts, 3.3, -45 °
Stuffer weft, 3.4, bundled yarn, 3.5,0 ° of laying-in yarns.
Strengthen for laminate compared to common Single Fiber, it is polyaxial to mix knitted fabric structure more stable, power
Performance is more excellent, designability is higher.Specific performance is as follows:
(1) the polyaxial fiber mixed in knitted fabric is in straight distribution, obtains the performance in fabric fibre principal direction
Give full play to;
(2) the polyaxial knitted fabric that mixes introduces binding yarn, and compared to laminate structures, its interlayer performance is more excellent, knot
Structure overall performance is more preferable;
(3) the polyaxial knitted fabric that mixes has mixed in the carbon fibers glass fibre, compared to Single Fiber fabric, produces
Confounding effect greatly improve its fracture toughness, shock resistance, fatigue property etc..
Specifically, the laying selection standard laying angle, laminated material and order are [0C,45G,-45G,90C]SWherein C
Carbon fiber is represented, G represents glass fibre (similarly hereinafter), and concrete structure is as shown in Figure 4:Respectively it is from top to bottom ground floor carbon fiber
0 ° of direction laying 4.1,45 ° of direction layings 4.2 of second layer glass fibre, -45 ° of direction layings 4.3 of third layer glass fibre, the 4th
Layer 90 ° of direction laying 4.4 of carbon fiber, 90 ° of direction layings 4.5 of layer 5 carbon fiber, -45 ° of direction layings of layer 6 glass fibre
4.6,45 ° of direction layings 4.7 of layer 7 glass fibre, 0 ° of direction laying of the 8th layer of carbon fiber 4.8,4.9 is binding yarn.
A kind of second aspect of this example, there is provided polyaxial fiber hybrid composite automobile batteries cartridge manufacturing method,
Principle of Process is as shown in fig. 7, comprises following step:
Step (1) preparation
1.1) it is polyaxial to mix knitted fabric;Using multi-shaft warp knitting technique, by the two kinds of enhancings of carbon fiber and glass fibre
Material be made into according to design angle, ply stacking-sequence required for polyaxial mix knitted fabric.
1.2) preparation of mould;Go through mould whether there is breakage, whether inside contains debris
1.3) RTM formers;RTM glue injection equipments 7.2 are checked, prepares the correlations such as curing agent, releasing agent, air compressor machine 7.1
Accessory.
Step (2) mould pre-treatment
Wiped 4 times with releasing agent in the inner surface of mould, according to a direction mould gently moistened, can not be wiped back and forth,
Wipe interval 15 minutes each time.
Step (3) fabric lays
By weave by design requirement it is polyaxial mix knitted fabric 7.4, smooth is laid in die cavity, does not allow its pleat
Wrinkle, and pare off unnecessary leftover pieces.
Step (4) matched moulds
Upper mould 7.33 is closed up with lower mould 7.35, periphery carries out sealing fastening using fixing bolt 7.31.
Step (5) resin is injected
5.1) by epoxy resin and curing agent according to 1:0.05 ratio allotment, 25 DEG C of experimental situation temperature, it is ensured that resin
There is good mobility and wellability during injecting glue.
5.2) epoxy resin and curing agent are stirred, stands 25 minutes, exclude the air in hybrid resin glue.
5.3) air compressor machine 7.1 is set and ensures that injection pressure is 0.15MPa, resin is injected into mould from gum-injecting port 7.32, note
In gum outlet 7.34 it is observed that resin and bubble are emerged during glue;Injecting glue does not have bubble to occur up to gum outlet, glue
Fully infiltration fabric, stops injecting glue, receives bucket receipts 7.5 with resin by the resin out of gum outlet 7.34 and collects.
Step (6) solidifies
Mould is placed in heating furnace carries out temperature control solidification, and at 40 DEG C, hardening time is 2 hours for solidification temperature control.
Step (7) demoulding
Upper and lower mould is separated after mould cooling, battery case is spun off from mould, and check that product has zero defect.
Step (8) is post-processed
Mould and RTM glue injection equipments are cleaned with acetone.
Embodiment 2
The shape of car battery box, material and the preparation method that this example is provided is substantially same as Example 1, and difference exists
In the polyaxial laying for mixing knitted fabric, laying angle is [0 with materialC,90C,-45G,45G]S, it is concrete as shown in Figure 5:The
One layer of carbon fiber, 0 ° of laying 5.1,90 ° of direction layings 5.2 of second layer carbon fiber, -45 ° of direction layings 5.3 of third layer glass fibre,
45 ° of direction layings 5.4 of four-layer glass fiber, 45 ° of direction layings 5.5 of layer 5 glass fibre, -45 ° of layer 6 glass fibre
Direction laying 5.6,90 ° of direction layings 5.7 of layer 7 carbon fiber, 0 ° of direction laying of the 8th layer of carbon fiber 5.8,5.9 is bundled yarn
Line.
Embodiment 3
This example is with comparing, there is provided the shape of car battery box, preparation method it is substantially same as Example 1, difference
It is that from pure carbon fiber laminate structures fabric, the carbon fiber number of plies is 8 layers, by specified angle spreading in layer manually,
Laying angle is [0C,90C,-45C,45C]S, it is concrete as shown in Figure 6:0 ° of direction laying 6.1 of ground floor carbon fiber, second layer carbon is fine
90 ° of direction layings 6.2 of dimension, -45 ° of direction layings 6.3 of third layer carbon fiber, 45 ° of direction layings 6.4 of the 4th layer of carbon fiber, the 5th
Layer 45 ° of direction laying 6.5 of carbon fiber, -45 ° of direction layings 6.6 of layer 6 carbon fiber, 90 ° of direction layings of layer 7 carbon fiber
6.7,0 ° of direction laying 6.8 of the 8th layer of carbon fiber.
The weight and rigidity of the battery case for providing embodiment 1, embodiment 2 and embodiment 3 and simple metal respectively is carried out
Test.The center of gravity of the battery case provided in each example applies battery quality 128kg, and battery case z is to displacement for measurement.
Test result is as shown in table 1:
The each example test result of table 1
Found by the contrast of table 1, the polyaxial fiber hybrid composite car battery box that the embodiment of the present invention is provided
Two embodiments have higher rigidity, can guarantee that the security of automobile battery in normally travel.With metal battery box phase
Than because the low-density of fibrous composite, gross mass have dropped 30% to polyaxial fiber hybrid composite car battery box.
Compared with pure carbon fiber laminated composite battery case, the glass of lower price is mixed with, cost have dropped 40%;And adopt
Multi-shaft warp knitting technique, laying is simple, facilitates implementation mechanization, and production efficiency is higher.It is to sum up proposed by the present invention polyaxial
The features such as fiber hybrid composite car battery box has high-strength light, low cost, high efficiency concurrently.
Claims (9)
1. a kind of polyaxial fiber hybrid composite car battery box, it is characterised in that:Its material is, with carbon fiber and glass
The polyaxial knitted fabric that mixes that fiber Jing multi-shaft warp knitting techniques are prepared into for reinforcing material, answering with epoxy resin as base material
Condensation material;
The polyaxial knitted fabric that mixes is including eight layers of parallel yarn laying being arranged in order, the laying angle of the laying
For 0 °, 45 °, 90 ° and -45 °, each laying angle has two layings, wherein 0 ° and 90 ° of layings are carbon fibre material, wherein
45 ° and -45 ° is glass fiber material.
2. polyaxial fiber hybrid composite car battery box according to claim 1, it is characterised in that:Described carbon
Fiber is T300-3k, and stretch modulus is 230Gpa, tensile strength 3.53Gpa, and the glass fibre is E glass fibres, stretching die
Amount 74GPa, tensile strength 3.5Gpa, described epoxy resin is NPEL-128 epoxy resin.
3. polyaxial fiber hybrid composite car battery box according to claim 1 and 2, it is characterised in that:It is described
Reinforcing material and base material volume ratio be 1:1.
4. the manufacture method of the polyaxial fiber hybrid composite car battery box according to any one of claims 1 to 3,
It is characterized in that:Comprise the steps:
(1) mould pretreatment:Wiped with releasing agent in die surface, be easy to the demoulding;
(2) fabric lays:The polyaxial knitted fabric that mixes is laid in die cavity according to laying angle is smooth, its pleat is not allowed
Wrinkle, and pare off unnecessary leftover pieces;
(3) matched moulds:Upper mould is closed up with lower mould, peripheral sealing fastening;
(4) resin injection:Epoxy resin and curing agent are well mixed, are then injected from mould glue-feeder, fully infiltrate multiaxis
To mixing knitted fabric;
(5) solidify:Mould is placed in into heating furnace carries out temperature control solidification;
(6) demoulding:Upper and lower mould is separated, battery case is spun off from mould and is checked that product has zero defect;
(7) post-process:Mould and glue injection equipment are cleared up with clean mould agent.
5. the manufacture method of polyaxial fiber hybrid composite car battery box according to claim 4, its feature exists
In:Step (1) is wiped more than 3 times in die surface with releasing agent, per minor tick 15-20min, and is wiped according to a direction.
6. the manufacture method of polyaxial fiber hybrid composite car battery box according to claim 4, its feature exists
In:Epoxy resin and curing agent mass ratio described in step (4) is 1:0.005~0.1, epoxy resin and curing agent mixing is equal
After even, 20-30min is stood.
7. the manufacture method of the polyaxial fiber hybrid composite car battery box according to claim 4 or 6, its feature
It is:Injection pressure in step (4) from mould glue-feeder injection epoxy resin and curing agent is 0.1~0.2MPa, and injecting glue is extremely
Gum outlet does not have bubble to occur, and stops injecting glue.
8. the manufacture method of polyaxial fiber hybrid composite car battery box according to claim 4, its feature exists
In:Temperature control condition of cure described in step (5) is that 40~50 DEG C of temperature, hardening time is 1.5~2h.
9. the manufacture method of polyaxial fiber hybrid composite car battery box according to claim 4, its feature exists
In:Clean mould agent described in step (7) is acetone.
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CN108717961A (en) * | 2018-07-27 | 2018-10-30 | 广东亚太轻量化技术研究有限公司 | A kind of battery case lower box body of New-energy electric vehicle |
CN111619504A (en) * | 2020-05-28 | 2020-09-04 | 江苏理工学院 | Automobile composite pedestrian protection beam |
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CN112977497A (en) * | 2019-12-17 | 2021-06-18 | 中车唐山机车车辆有限公司 | Rail vehicle hood, locomotive and rail vehicle |
CN113895055A (en) * | 2021-09-02 | 2022-01-07 | 佛山智汇君彰新材料科技有限公司 | Method for preparing battery box of marine equipment |
CN114194009A (en) * | 2021-12-03 | 2022-03-18 | 芜湖莱特思创汽车零部件有限公司 | Lightweight door |
CN115122675A (en) * | 2022-05-24 | 2022-09-30 | 哈尔滨玻璃钢研究院有限公司 | Composite material section bar, preparation method thereof and pultrusion method |
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CN113895055A (en) * | 2021-09-02 | 2022-01-07 | 佛山智汇君彰新材料科技有限公司 | Method for preparing battery box of marine equipment |
CN113895055B (en) * | 2021-09-02 | 2023-10-24 | 佛山智汇君彰新材料科技有限公司 | Method for preparing battery box of marine equipment |
CN114194009A (en) * | 2021-12-03 | 2022-03-18 | 芜湖莱特思创汽车零部件有限公司 | Lightweight door |
CN115122675A (en) * | 2022-05-24 | 2022-09-30 | 哈尔滨玻璃钢研究院有限公司 | Composite material section bar, preparation method thereof and pultrusion method |
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