CN110481055A - A kind of low cost manufacturing composite material mould process - Google Patents
A kind of low cost manufacturing composite material mould process Download PDFInfo
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- CN110481055A CN110481055A CN201910767074.0A CN201910767074A CN110481055A CN 110481055 A CN110481055 A CN 110481055A CN 201910767074 A CN201910767074 A CN 201910767074A CN 110481055 A CN110481055 A CN 110481055A
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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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
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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
- B29C70/342—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation using isostatic pressure
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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
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
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- 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
- B29L2031/757—Moulds, cores, dies
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Thermal Sciences (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
Abstract
The present invention relates to composite material mould manufacturing technology fields, more particularly to a kind of low cost manufacturing composite material mould process, it chooses epoxy substitute materials for wood and manufactures master mold, and the model of master mold is established in three-dimensional software, composite material Stack Model is established on the model of master mold, fibrous material laying in composite material mould Stack Model is unfolded in three-dimensional software, fibrous material layer is prepared according to the model after expansion, resin adhesive liquid is scratched on master mold and is laid with fibrous material layer, then it is heating, precuring is carried out to die blank in pressurized equipment, master mold is sloughed after precuring, die blank is put into after being carried out in heating equipment and is solidified, this method is heating, precuring only has been carried out to composite material mould in pressurized equipment, rear curing process is placed in simple warming-up device and is carried out, reduce the use cost of equipment, it is female Mould, which does not need to enter with mold, carries out hot setting in warming-up device, to reduce the manufacturing cost of mold in the selection of master mold.
Description
Technical field
The present invention relates to design composite material mould manufacturing technology field, especially a kind of low cost manufacturing composite material moulds
Has process.
Background technique
Composite product usually uses thermoforming process to manufacture, and mold made from general material and composite material it
Between hot coefficient difference it is too big, cause element precision after molding by strong influence, therefore people consider to use composite wood
Material manufactures composite material parts as mold.
In composite material shaping process, general operating method is to weigh a certain amount of epoxy resin according to the proportion and consolidate
The resin adhesive liquid that agent is formed after mixing scratches on fiber raw material, and fiber raw material is laid on mastermold and is put
Enter into autoclave and carry out temperature-pressure, until composite material mould forms.
For conventional composite materials mold form, generally use carbon fiber prepreg, the forming method of vacuum bag autoclave,
The material cost of carbon fiber is prohibitively expensive from material, and is made in its moulding process using autoclave heating, pressurization
The cost of composite material mould curing molding, equipment is too high, is unfavorable for producing in batches, so technologic improvement is to composite wood
Expect that mold batch production is most important.
In conclusion there is an urgent need for a kind of technical solutions at present, the prior art is solved during manufacturing composite material mould
The technical issues of using autoclave heating, to be press-formed its cost excessively high, is unfavorable for batch production.
Summary of the invention
Goal of the invention of the invention is: using autoclave during there is manufacture composite material mould for the prior art
Heat, to be press-formed its cost excessively high, the technical issues of being unfavorable for batch production, a kind of low cost manufacturing composite material mould is provided
Has process.
To achieve the goals above, the technical solution adopted by the present invention are as follows:
A kind of low cost manufacturing composite material mould process, its step are as follows:
Step 1 prepares master mold: establishing master mold model in three-dimensional software, selects epoxy substitute materials for wood, is made according to master mold model
Master mold；After establishing out master mold model, processing program can be compiled in three-dimensional software to master mold model, processed on numerically-controlled machine tool
Master mold out.
Step 2 establishes mold Stack Model: mold Stack Model is established out on master mold model in three-dimensional software, it is described
Mold Stack Model includes several fiber lay down layer models, at least one described fiber lay down layer model is unfolded in three-dimensional software
At plane；The fiber lay down layer model of foundation is launched into plane in three-dimensional software, is conducive in follow-up work according to expansion mould
Type manufactures fibrous material layer.
Step 3 prepares fibrous material layer: according to the profile of the fiber lay down layer model after step 2 expansion in fiber raw material
On prepare fibrous material layer.
Step 4 prepares die blank: scratching resin adhesive liquid in master tool surface, fibrous material layer is then laid with, then in fibre
Dimension material layer outer surface continues to scratch resin adhesive liquid, is laid with an other fibrous material layer, and so on operates, until on master mold
Die blank reach the design thickness of composite material mould.
Step 5, precuring: precuring is carried out to die blank using heating, pressurized equipment, merges resin adhesive liquid uniformly
In fibrous material layer, so that the hardness of die blank is reached demoulding and require；Precuring is to make to set by the means for heating, pressurizeing
Rouge glue uniformly, it is fine and close be distributed in fibrous material layer, and composite material mould is made to reach demoulding state.
Step 6, demoulding: composite material mould being detached from from master mold, obtains composite material mould, solid after entering high temperature
Composite material mould and master mold are separated before change, master mold is avoided to receive damage under high temperature environment, the repetition for influencing master mold makes
With save the cost.
Step 7, rear solidification: solidify after being carried out in warming-up device to composite material mould, keep composite material mould complete
Solidification, heating, the power of pressurized equipment its equipment are larger, due to higher with the presence of intensity requirement of the high pressure to each accessory of equipment,
The rear solidification that composite material is carried out in simple warming-up device, can reduce the use cost of equipment, be conducive to composite material
The low cost of mold is at production.
A kind of low cost manufacturing composite material mould process of the present invention chooses epoxy substitute materials for wood and manufactures master mold, and
The model that master mold is established in three-dimensional software, processes master mold on numerically-controlled machine tool, establishes composite material on the model of master mold
Stack Model the fibrous material laying in composite material mould Stack Model is unfolded in three-dimensional software, after expansion
Model prepares fibrous material layer, and resin adhesive liquid is scratched on master mold and is laid with fibrous material layer, resin adhesive liquid and fibrous material layer
Alternate arrangement until on master mold blank reach composite theory thickness, then heating, in pressurized equipment to die blank into
Row precuring sloughs master mold after precuring, by die blank be put into heating equipment carry out after solidify, heating, pressurized equipment its
The power of equipment is larger, and due to higher with the presence of intensity requirement of the high pressure to each accessory of equipment, heating, pressurized equipment are opposite
In its higher operating costs of simple warming-up device, this method only carries out composite material mould in heating, pressurized equipment
Precuring, pressure process therein can make resin be sufficiently impregnated guaranteeing densifie state in fibrous material layer, reduce mold
Rear curing process is placed in simple warming-up device and carries out, reduce and set so as to protect formed in mould intensity by voidage
Standby use cost, and just deviate from master mold after precuring, master mold does not need to enter warming-up device with composite material mould
Middle carry out hot setting to not have to that epoxy substitute wood resistant to high temperature is selected to make master mold in the selection of master mold, and then reduces female
The material cost of mould.
As a preferred solution of the present invention, step 4.1 is additionally provided between the step 4 and the step 5, resin of weighing
Glue: resin adhesive liquid compatible with fibrous material is weighed by way of weighing.Composite material mould according to design weight
Suitable fibrous material layer and resin adhesive liquid are matched, the composite material of final molding is made to reach an ideal intensity, is increased multiple
The service performance of condensation material and service life.
As a preferred solution of the present invention, several fibrous material layers obtained, several fibers in the step 3
The machine direction of material layer is not exactly the same.The multiple fibrous material layers for cutting different machine directions, in subsequent laying undulation degree
It when the bed of material, can make to keep different machine directions between adjacent fibrous material layer, avoid the consistent fiber of excessive machine direction
Material layer overlaps and leads to composite material mould easy fracture, and intensity is insufficient.
As a preferred solution of the present invention, the step 3 includes step 3.1, processes Die plate paper: according to fiber lay down layer model
Contour machining Die plate paper；Further include step 3.2, cut fiber raw material, is cut according to the profile of the Die plate paper after processing fine
Raw material are tieed up, several fibrous material layers are made.Due to fibrous material quality it is softer should not by the way of numerical control processing into
Row cut, so can choose the suitable Die plate paper of hardness be worked into after the shape of fiber laying, then according to Die plate paper shape
Shape cuts fibrous material using scissors or other crop tools, and the fibrous material layer obtained in this way its fiber will not be by
It destroys, can guarantee the intensity of the composite material mould of final molding, wherein Die plate paper can use brown paper or polyester plastics
The harder material such as plate.
As a preferred solution of the present invention, the step 3.3 puts relationship by adjusting Die plate paper and fiber raw material,
The fibrous material layer with different machine directions is made.
As a preferred solution of the present invention, step 1.1 is additionally provided between the step 1 and step 2, master mold of polishing: right
Master mold carries out sanding and polishing, makes master tool surface fairing.It needs to make composite material according to master tool surface in subsequent work
The quality of mold, master tool surface directly influences the quality of composite material mould, carries out sanding and polishing to master mold, is conducive to improve
The surface quality of composite material mould.
As a preferred solution of the present invention, it is additionally provided with step 6.1 between the step 6 and step 7, reinforcer is installed: right
After die blank carries out precuring, reinforcer is set on a side surface of the non-fitting master mold of die blank.
As a preferred solution of the present invention, heating described in the step 5, pressurized equipment use autoclave, in autoclave
In with the heating rate of≤2 DEG C/min, be warming up to 80 DEG C, and be gradually pressurized to 0.3bar, heat preservation, after pressure maintaining 6-8 hours, then with
≤ 2 DEG C/min is cooled to room temperature.
As a preferred solution of the present invention, the warming-up device described in the step 7 uses curing oven or baking oven, with≤2
DEG C/heating rate of min, 180 DEG C are warming up to, and keep the temperature at least 2 hours, then room temperature is cooled to≤2 DEG C/min.
As a preferred solution of the present invention, the fiber raw material uses basalt fibre raw material or glass fibre former material
Material.It can greatly be saved for practical carbon fiber raw material using basalt fibre raw material and glass fibre raw material
Material cost.
In conclusion by adopting the above-described technical solution, the beneficial effects of the present invention are:
This method has only carried out precuring to composite material mould in heating, pressurized equipment, and pressure process therein can
Make resin be sufficiently impregnated guaranteeing densifie state in fibrous material layer, reduce the voidage of mold, so as to protect mold molding
Intensity, rear curing process is placed in simple warming-up device and is carried out, reduce the use cost of equipment, and in precuring
Just master mold is deviate from afterwards, master mold, which does not need to enter with composite material mould, carries out hot setting in warming-up device, thus in master mold
Selection on epoxy substitute wood resistant to high temperature need not be selected to make master mold, and then reduce the material cost of master mold, used from equipment and
The manufacturing cost for reducing composite material mould in terms of material simultaneously, is conducive to the batch production of composite material mould.
Detailed description of the invention
Fig. 1 is a kind of process flow diagram of low cost manufacturing composite material mould process of the present invention；
Fig. 2 is the schematic diagram that die blank is laid on master mold；
Fig. 3 is the operation chart that fiber raw material is cut using Die plate paper；
Marked in the figure: 1- master mold, 2- fibrous material layer, 3- resin adhesive liquid, 4- Die plate paper, 5- fiber raw material.
Specific embodiment
With reference to the accompanying drawing, the present invention is described in detail.
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not
For limiting the present invention.
Embodiment 1
A kind of low cost manufacturing composite material mould process of the present invention, its step are as follows:
Step 1 prepares master mold: establishing master mold model in three-dimensional software, selects epoxy substitute materials for wood, is made according to master mold model
Master mold 1；After establishing out master mold model, processing program can be compiled in three-dimensional software to master mold model, add on numerically-controlled machine tool
Work goes out master mold 1, and wherein three-dimensional software can be selected CATIA, composite product and epoxy substitute materials for wood thermal expansion coefficient difference compared with
It is small, so can be improved the precision of composite material mould using epoxy substitute materials for wood.
Step 2 establishes mold Stack Model: mold Stack Model is established out on master mold model in three-dimensional software, it is described
Mold Stack Model includes several fiber lay down layer models, at least one described fiber lay down layer model is unfolded in three-dimensional software
At plane；The fiber lay down layer model of foundation is launched into plane in three-dimensional software, is conducive in follow-up work according to expansion mould
Type manufactures fibrous material layer 2.
Step 3 prepares fibrous material layer 2: according to the profile of the fiber lay down layer model after step 2 expansion in fiber raw material
On prepare fibrous material layer 2.
Step 4 prepares die blank: scratching resin adhesive liquid 3 on 1 surface of master mold, is then laid with fibrous material layer 2, then
Continue to scratch resin adhesive liquid 3 in 2 outer surface of fibrous material layer, is laid with an other fibrous material layer 2, and so on operates, directly
Die blank on to master mold 1 reaches the design thickness of composite material mould.
Step 5, precuring: precuring is carried out to die blank using heating, pressurized equipment, melts resin adhesive liquid 3 uniformly
It closes in fibrous material layer 2, so that the hardness of die blank is reached demoulding and require.
Step 6, demoulding: composite material mould is detached from from master mold 1, obtains composite material mould.
Step 7, rear solidification: solidify after being carried out in warming-up device to composite material mould, keep composite material mould complete
Solidification.
Specifically, heating described in the step 5, pressurized equipment use autoclave, with≤2 DEG C/min's in autoclave
Heating rate is warming up to 80 DEG C, and is gradually pressurized to 0.3bar, keeps the temperature, after pressure maintaining 6-8 hours, then be cooled to≤2 DEG C/min
Room temperature；The warming-up device described in the step 7 is warming up to 80 using curing oven or baking oven with the heating rate of≤2 DEG C/min
DEG C, 100 DEG C, 120 DEG C, 140 DEG C, 180 DEG C, and keep the temperature at least 2 hours in each temperature section, then room temperature is cooled to≤2 DEG C/min；
The fiber raw material 5 uses basalt fibre raw material or glass fibre raw material.
Further, it is additionally provided with step 4.1 between the step 4 and the step 5, resin adhesive liquid 3 of weighing: passes through title
The mode of weight weighs resin adhesive liquid 3 compatible with fibrous material, and the composite material mould proportion according to design weight is suitable
Fibrous material layer 2 and resin adhesive liquid 3 make the composite material of final molding reach an ideal intensity, increase composite material
It service performance and service life, can be according to 35% ρ of formulaResin/65%ρFiber+35%ρResinCalculate the weight that resin accounts for composite material mould
Than calculating the weight of resin adhesive liquid 3 further according to the theoretical weight of the composite material mould of design weight.
Further, several fibrous material layers 2 obtained, the fibre of several fibrous material layers 2 in the step 3
It is not exactly the same to tie up direction, multiple basalt fiber material layers 2 of different machine directions are cut, in subsequent laying fibrous material layer
When 2, it can make to keep different machine directions between adjacent fibrous material layer 2, avoid the consistent undulation degree of excessive machine direction
The bed of material 2 overlaps and leads to composite material mould easy fracture, and intensity is insufficient.
Further, the step 3 includes step 3.1, processes Die plate paper: according to the contour machining mould of fiber lay down layer model
Paperboard；Further include step 3.2, cut fiber raw material 5, cuts fiber raw material 5 according to the profile of the Die plate paper 4 after processing,
Several fibrous material layers 2 are made, should not be cut by the way of numerical control processing since fibrous material quality is softer, therefore
And the suitable Die plate paper of hardness can be chosen and be worked into after the shape of fiber laying, then scissors is used according to the shape of Die plate paper
Or other crop tools cut fibrous material, its fiber of the fibrous material layer obtained in this way will not be destroyed, can
Guarantee the intensity of the composite material mould of final molding, wherein Die plate paper can be harder using brown paper or polyester plastics plate etc.
Material.
Further, relationship is put by adjusting Die plate paper 4 and fiber raw material 5 in the step 3.2, being made has
The angle of the machine direction of the fibrous material layer 2 of different machine directions, specific setting adjustment Die plate paper 4 and fiber raw material 5,
- 45 degree of setting, 0 degree, 45 degree, 90 degree of four angles, cut out the fibrous material layer 2 of four kinds of different machine directions at this angle,
Straight line can be drawn on Die plate paper 4 when specific operation, the straight line to draw chooses straight line and fiber raw material as benchmark
Each aforementioned angle of 5 machine direction carries out cutting fiber raw material.
Further, it is additionally provided with step 1.1 between the step 1 and step 2, master mold 1 of polishing: master mold 1 is beaten
Grinding and polishing light makes 1 surface smoothing of master mold, needs to make composite material mould, master mold according to 1 surface of master mold in subsequent work
The quality on 1 surface directly influences the quality of composite material mould, is conducive to the precision for improving composite material mould.
Further, it is additionally provided with step 6.1 between the step 6 and step 7, reinforcer is installed: die blank is carried out
After precuring, reinforcer is set on a side surface of the non-fitting master mold 1 of die blank, specifically, reinforcer is by made of metal
At structure, reinforcer can make the intensity of composite material mould by way of stickup in conjunction with composite material outer surface in the form of sheets
Increase.
To sum up, it is female to choose the manufacture of epoxy substitute materials for wood for a kind of low cost manufacturing composite material mould process of the present invention
Mould, and the model of master mold is established in three-dimensional software, master mold 1 is processed on numerically-controlled machine tool, is established on the model of master mold multiple
Condensation material Stack Model the fibrous material laying in composite material mould Stack Model is unfolded in three-dimensional software, according to exhibition
Model after opening prepares fibrous material layer 2, and resin adhesive liquid 3 is scratched on master mold 1 and is laid with fibrous material layer 2,3 He of resin adhesive liquid
Fibrous material layer 2 is alternate to be arranged until blank reaches composite theory thickness on master mold 1, then in heating, pressurized equipment
Precuring is carried out to die blank, master mold 1 is sloughed after precuring, die blank is put into after being carried out in heating equipment and is solidified, added
Temperature, the power of pressurized equipment its equipment are larger, due to higher with the presence of intensity requirement of the high pressure to each accessory of equipment, add
Temperature, pressurized equipment are relative to its higher operating costs of simple warming-up device, and this method is in heating, pressurized equipment only to compound
Material molds have carried out precuring, and pressure process therein can make resin be sufficiently impregnated guaranteeing compact shape in fibrous material layer
State reduces the voidage of mold, so as to protect formed in mould intensity, rear curing process is placed in simple warming-up device
It carries out, reduces the use cost of equipment, and just deviate from master mold 1 after precuring, master mold 1 is not needed with composite material mould
Tool, which enters in warming-up device, carries out hot setting, to not have to that epoxy substitute wood resistant to high temperature is selected to make in the selection of master mold 1
Master mold, and then reduce the material cost of master mold 1.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. a kind of low cost manufacturing composite material mould process, which is characterized in that its step are as follows
Step 1 prepares master mold (1): establishing master mold model in three-dimensional software, selects epoxy substitute materials for wood, according to master mold model
It is made master mold (1)；
Step 2 establishes mold Stack Model: establishing out mold Stack Model, the mold on master mold model in three-dimensional software
Stack Model includes several fiber lay down layer models, at least one described fiber lay down layer model is launched into three-dimensional software flat
Face；
Step 3 prepares fibrous material layer (2): according to the profile of the fiber lay down layer model after step 2 expansion in fiber raw material
(5) fibrous material layer (2) are prepared on；
Step 4 prepares die blank: scratching resin adhesive liquid on master mold (1) surface, is then laid with fibrous material layer (2), then exists
Fibrous material layer (2) outer surface continues to scratch resin adhesive liquid, is laid with an other fibrous material layer (2), and so on operates, directly
Die blank on to master mold (1) reaches the design thickness of composite material mould；
Step 5, precuring: precuring is carried out to die blank using heating, pressurized equipment, merges resin adhesive liquid uniformly in fibre
It ties up in material layer (2), so that the hardness of die blank is reached demoulding and require；
Step 6, demoulding: composite material mould is detached from from master mold (1), obtains composite material mould；
Step 7, rear solidification: solidify after being carried out in warming-up device to composite material mould, composite material mould is fully cured.
2. low cost manufacturing composite material mould process according to claim 1, which is characterized in that the step 4
It is additionally provided with step 4.1 between the step 5, resin adhesive liquid of weighing: is weighed by way of weighing and is mutually fitted with fibrous material
The resin adhesive liquid matched.
3. low cost manufacturing composite material mould process according to claim 1, which is characterized in that the step 3
In several fibrous material layers (2) obtained, the machine direction of several fibrous material layers (2) is not exactly the same.
4. low cost manufacturing composite material mould process according to claim 3, which is characterized in that the step 3
Including step 3.1, Die plate paper is processed: according to the contour machining Die plate paper of fiber lay down layer model；Further include step 3.2, cuts fine
It ties up raw material (5), cuts fiber raw material (5) according to the profile of the Die plate paper (4) after processing, several fibrous materials are made
Layer (2).
5. low cost manufacturing composite material mould process according to claim 4, which is characterized in that the step
Relationship is put by adjusting Die plate paper (4) and fiber raw material (5) in 3.2, the undulation degree with different machine directions is made
The bed of material (2).
6. low cost manufacturing composite material mould process according to claim 1, which is characterized in that the step 1
It is additionally provided with step 1.1 between step 2, master mold of polishing: sanding and polishing being carried out to master mold (1), makes master mold (1) surface smoothing.
7. low cost manufacturing composite material mould process according to claim 1, which is characterized in that the step 6
It is additionally provided with step 6.1 between step 7, reinforcer is installed: after carrying out precuring to die blank, in the non-fitting of die blank
Reinforcer is set on one side surface of master mold (1).
8. low cost manufacturing composite material mould process according to claim 1, which is characterized in that the step 5
Described in heating, pressurized equipment use autoclave, with the heating rate of≤2 DEG C/min in autoclave, be warming up to 80 DEG C, and by
Step is pressurized to 0.3bar, keeps the temperature, after pressure maintaining 6-8 hours, then be cooled to room temperature with≤2 DEG C/min.
9. low cost manufacturing composite material mould process according to claim 8, which is characterized in that in the step
Warming-up device described in 7 uses curing oven or baking oven, with the heating rate of≤2 DEG C/min, is warming up to 180 DEG C, and keep the temperature at least 2
Hour, then room temperature is cooled to≤2 DEG C/min.
10. -9 any low cost manufacturing composite material mould process according to claim 1, which is characterized in that institute
Fiber raw material (5) are stated using basalt fibre raw material or glass fibre raw material.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110481057A (en) * | 2019-08-26 | 2019-11-22 | 中国航空工业集团公司沈阳飞机设计研究所 | A kind of intensive sample in composite material gap, preparation facilities and preparation method |
| CN113696510A (en) * | 2021-09-26 | 2021-11-26 | 北京海利天梦科技有限公司 | Machining process for heat shield |
| CN115091781A (en) * | 2022-05-31 | 2022-09-23 | 中国第一汽车股份有限公司 | Composite material part forming method |
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| CN110481056A (en) * | 2019-08-20 | 2019-11-22 | 四川明日宇航工业有限责任公司 | A kind of composite material mould forming method based on RFI technique |
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| CN110481057B (en) * | 2019-08-26 | 2022-08-19 | 中国航空工业集团公司沈阳飞机设计研究所 | Composite material gap-dense sample, preparation device and preparation method |
| CN113696510A (en) * | 2021-09-26 | 2021-11-26 | 北京海利天梦科技有限公司 | Machining process for heat shield |
| CN115091781A (en) * | 2022-05-31 | 2022-09-23 | 中国第一汽车股份有限公司 | Composite material part forming method |
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Application publication date: 20191122 |