CN109693396A - A kind of mould pressing process of carbon fiber sole - Google Patents
A kind of mould pressing process of carbon fiber sole Download PDFInfo
- Publication number
- CN109693396A CN109693396A CN201910026053.3A CN201910026053A CN109693396A CN 109693396 A CN109693396 A CN 109693396A CN 201910026053 A CN201910026053 A CN 201910026053A CN 109693396 A CN109693396 A CN 109693396A
- Authority
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- China
- Prior art keywords
- pressing process
- mold
- release film
- mould pressing
- compound release
- 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.)
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Classifications
-
- 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
-
- 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
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/56—Coatings, e.g. enameled or galvanised; Releasing, lubricating or separating agents
- B29C33/68—Release sheets
-
- 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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
The invention discloses a kind of mould pressing process of carbon fiber sole, including the following steps: that production has coefficient of friction is the compound release film of the smooth surface of 0.04-0.2；Adhesive layer is coated on a surface of the compound release film；The surface for being coated with the compound release film of the adhesive layer is pasted onto the cavity surface of mold securely；The preform of sole is put into the mold, heats up, makes the preform forming and hardening；After the preform is solidified into molded product, the mold containing the molded product is cooled down, the molded product of carbon fiber sole can be obtained.The mould pressing process of the application is simple, and manufacturing cost is low, and the surfacing of obtained carbon fiber sole product, non-starved, pin-free.
Description
Technical field
This application involves molding field, in particular to a kind of mould pressing process of carbon fiber sole.
Background technique
For carbon fiber due to light-weight, specific gravity is small, and intensity is high, the superior performance such as endurance, has been widely used (false in artifucial limb
Limb) on.It is, for example, possible to use the prosthetic foots of carbon fiber production sole.This prosthetic foot is due to light and elasticity is good characteristic, again
Referred to as energy storage carbon fiber foot can bring glad tidings for numerous individuals with disabilities, have very good social value.
General carbon fiber sole has certain thickness carbon fiber prepreg lamination by multilayer, by heat-pressure curing
At.Forming and hardening is generally carried out through the mode frequently with autoclave, but its curing time is up to 6 hours or more, production efficiency
It is low, it is with high costs, so that carbon fiber sole is expensive, increase the burden of patient.
In the related technology, it is the manufacturing cost for reducing the product, is solidified using hot-platen mould pressing process, program curing
Using following steps: in prepreg cutting-laying-preform-merging mold-upper hot-platen-heating pressurization-solidification finishes-
Cooling-taking-up sole mold base.
But in order to realize the high resiliency of carbon fiber sole, the carbon fiber sole use non-uniform wall thickness design, i.e., its
Front end is relatively thin, and rear end is thicker, is easy to cause pressure not uniform enough at the time of molding in this way, surface of the molded article occur a large amount of true holes or
The non-uniform phenomenon of the resin distributions such as starved, product appearance are much not achieved the acceptable level of consumer, need through later
Processing can be only achieved the effect of the smooth beauty of appearance surfaces.General postprocessing working procedures use following steps: sandblasting-palm fibre mill-spray is saturating
Thin benefit-inspection-the wiping of the thick benefit-spray transparent priming 2- standing-baking-fine grinding-of bright priming paint 1- standing-baking-corase grinding-- spray midway
The above 20 multiple tracks surface treatment procedures such as polishes-standing-baking-labeling-topcoating-standing-baking-final inspection-packaging, this
Process needs to expend a large amount of manpower, material resources and time cost, leads to the with high costs of the carbon fiber sole, is unfavorable for largely pushing away
It is wide to use.
Summary of the invention
In view of the above-mentioned problems, a kind of mould pressing process for being designed to provide carbon fiber sole of the application, the simple process,
Manufacturing cost is low, and the surfacing of obtained carbon fiber sole product, non-starved, pin-free.
In order to achieve the above objectives, the technical solution that the application is proposed are as follows: a kind of mould pressing process of carbon fiber sole, including
Following steps:
It is the compound release film of the smooth surface of 0.04-0.2 that making, which has coefficient of friction,；On a surface of the compound release film
Coat adhesive layer；The surface for being coated with the compound release film of the adhesive layer is pasted onto the cavity surface of mold securely；
The preform of sole is put into the mold, heats up, makes the preform forming and hardening；The preform is solidified into molding
After product, the mold containing the molded product is cooled down, the molded product of carbon fiber sole can be obtained.
In some embodiments of the present application, it is the compound of the smooth surface of 0.04-0.2 that the production, which has coefficient of friction,
The step of release film includes:
Choose screen cloth；At least one surface impregnation of the screen cloth had into hydrophobic and oleophobic surface characteristic resin material；It will
Impregnation has the screen cloth of the resin material after solidification, obtains the compound release film.
In some embodiments of the present application, the screen cloth with a thickness of 0.03mm-0.2mm, the screen cloth is glass fibers
Tie up screen cloth.
In some embodiments of the present application, the fusing point of the resin material is more than or equal to 200 DEG C.
In some embodiments of the present application, the resin material is Teflon resin.
In some embodiments of the present application, the resin material on the screen cloth with a thickness of 0.02mm-0.05mm.
In some embodiments of the present application, the coefficient of friction is 0.04-0.1.
In some embodiments of the present application, the thickness of the adhesive layer is greater than 0.02mm, and is less than or equal to 0.05mm.
In some embodiments of the present application, the surface of the compound release film that will be coated with the adhesive layer is secured
Ground is pasted onto the step of cavity surface of mold and includes:
The surface for being coated with the compound release film of the adhesive layer is affixed on to the cavity surface of mold；On the cavity surface
It is put into soft material, is molded；After the mold is suppressed the predetermined time at normal temperature, soft material is taken out, can be made described multiple
Release film is closed to be pasted onto securely on the cavity surface of the mold.
In some embodiments of the present application, the solidification temperature of the preform is 100 DEG C -200 DEG C.
In some embodiments of the present application, the curing time of the preform is 20min-60min.
By adopting the above technical scheme, the application has the advantages that
The mould pressing process of the application is simple, and manufacturing cost is low, and the characteristic smooth and release using compound release film surface, can make
The preform of carbon fiber sole at the time of molding, can sufficiently infiltrate, and then can make carbon obtained along the surface of compound release film
It is the surfacing of fiber sole product, non-starved, pin-free.
Specific embodiment
Below by the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described implementation
Example is merely a part but not all of the embodiments of the present application.Based on the embodiment in the application, this field is common
Technical staff's every other embodiment obtained without making creative work belongs to the model of the application protection
It encloses.
The embodiment of the present application provides a kind of mould pressing process of carbon fiber sole comprising following steps:
Firstly, it is the compound release film of the smooth surface of 0.04-0.2 that production, which has coefficient of friction,.In some implementations of the application
In example, which is 0.04-0.1.During making compound release film, following steps can be used: 1., choose have
Certain thickness screen cloth；2., by screen cloth impregnation have hydrophobic and oleophobic surface characteristic resin material；3. and then will contain and be soaked with
The screen cloth of resin material after higher temperature-curable, obtain having coefficient of friction be the smooth surface of 0.04-0.2 it is compound from
Type film.
Above-mentioned steps 1. in, when the thickness to screen cloth selects, since manufactured compound release film needs have
Certain intensity, thus screen cloth can not ether it is thin, otherwise molding when, pressure pad can not be played the role of, cannot make to press
Power is uniform；But screen cloth also can not be too thick, otherwise in some areas, may be such that the in uneven thickness of finished product, therefore the application
By that can be preferably 0.05mm- in depth the study found that the thickness of the screen cloth can choose as 0.03mm-0.20mm
0.10mm.It is also critically important for the selection of the material of screen cloth.Under biggish pressure condition, if the intensity of screen cloth itself is no
It is enough, it will to be torn out, from without preferable surface effect, in some instances it may even be possible to negative effect can be generated, the application's
In some embodiments, screen cloth is preferably the glass fiber mesh with larger intensity.
In some embodiments, it can contain on a surface of screen cloth or two surface and be soaked with the resin material layer, when
When on a surface of the screen cloth containing the resin material layer is soaked with, the thickness of the resin material layer can be 0.02mm-0.05mm.
When on two surfaces of screen cloth all containing the resin material layer is soaked with when, the thickness of the resin material layer on each surface of the screen cloth
It can be 0.02mm-0.05mm, the thickness summation for being also possible to the resin material layer on two surfaces of the screen cloth is 0.02mm-
0.05mm。
Above-mentioned steps 2. in, resin material is with hydrophobic and oleophobic surface characteristic resin material.Due to selected
Resin material there is the surface characteristic of hydrophobic and oleophobic, the surface of obtained compound release film can be made smooth, surface tension
Very little will not attach foreign matter.The preform of carbon fiber sole is formed by prepreg cloth lamination.Epoxy resin in the prepreg cloth has
Oil-wet behavior, and the surface tension of compound release film is minimum, other substances will not be attached on surface, therefore works as epoxy resin edge
The surface flow of compound release film when, the foreign matter that will not may be attached because of release film surface, and then make the surface of preform
Form defect, therefore it can be formed by curing a thin layer of resin film, so as to make the carbon fiber sole after forming and hardening at
It is the surfacings of type product, non-starved, pin-free.In addition, the selected resin material needs for being used to do compound release film have
Resistance to 200 DEG C or more of high temperature (i.e. the glass transition point Tg of resin material be more than or equal to 200 DEG C), and repeatedly (at least 30-50 times
Under the conditions of reuse) in 200 DEG C of -250 DEG C of solidifications, its surface property will not be decreased obviously.In addition, the resin material also needs
There is good acid-proof alkaline, good oxidation resistance has chemical inertness, will not be to epoxy monomer and its related modification
Agent chemically reactive.In some embodiments, which includes, but are not limited to Teflon resin.Teflon resin is formed
The coefficient of friction on surface be only 0.04, surface tension is minimum in all known solid materials and has extraordinary release effect
Fruit, will not pyrolytic, and will not react, can repeatedly use with epoxy resin.
Then, adhesive layer is coated on a surface of above-mentioned compound release film.Wherein, which can be made using glue
Make.In some embodiments, the thickness of adhesive layer is greater than 0.02mm, and is less than or equal to 0.05mm.In some embodiments, the glue
Adhesion coating can be coated on another surface not containing the screen cloth for being soaked with resin material layer, can also be coated and be contained on both surfaces
It is soaked on one of surface of the screen cloth of resin material layer.
Then, the surface for being coated with the above-mentioned compound release film of adhesive layer is pasted onto the cavity surface of mold securely.?
In this step, to be more convenient the surface of compound release film and being pasted on the cavity surface of mold securely, it can adopt
With following step: 1., mold is opened, the surface for being coated with the compound release film of adhesive layer is affixed on to the cavity surface of mold, it should
Mold can be used metal forming mode and make；2., soft material, closed die are put on cavity surface；3., by mold normal
After lower compacting predetermined time (such as 1min-3min) of temperature, soft material is taken out, compound release film can be made to be pasted onto mould securely
On the cavity surface of tool.Wherein, step 3. in, mold can will be suppressed using room temperature oil pressure platform.Such method passes through
Mold suppresses soft material, and then can make smooth compound release film, corrugationless and the mould for being pasted onto mold securely
On the surface of cave, the surface of obtained carbon fiber sole molded product can be made more smooth.
Again, the preform of carbon fiber sole is put into the mold, heats up, makes preform forming and hardening.In this Shen
In some embodiments please, solidification temperature when solidifying to preform is 100 DEG C -200 DEG C.In further embodiments,
Solidification temperature when solidifying to preform is 140 DEG C -180 DEG C.In some embodiments, preform is carried out cured solid
The change time is 20min-60min.In this step, mold can be put into hot oil to present a theatrical performance as the last item on a programme, then thickness and heating song according to mold
Line sets cured temperature and time, and then completes the forming and hardening of the preform of carbon fiber sole.
Finally, the mold containing molded product is carried out cold after the preform of above-mentioned carbon fiber sole is solidified into molded product
But, the molded product of carbon fiber sole can be obtained.In this step, the mold containing molded product of cured completion can be put into
The oil pressure platform for having cooling water to recycle, makes mold and its interior molded product be cooled to 50 DEG C -60 DEG C.The mold cooled down is moved again
To mould-opening equipment, mold is opened, that is, can be taken off the molded product of carbon fiber sole.Then, the mold cleaning is clean, so that it may quasi-
The preparation of standby next round molded product.
It, can also be by above-mentioned obtained molded product by the related dress of numerically-controlled machine tool processing in some embodiments of the present application
With hole location, the good carbon fiber sole of appearance can be obtained.
Embodiments herein is attached to the mold for preparing carbon fiber sole by making and using compound release film
Cavity surface on, and using the smooth and release characteristic in its surface, which can be such that the preform of carbon fiber sole is forming
When, it can sufficiently be infiltrated along the surface of compound release film, obtained carbon fiber sole product can be made flat with appearance
It is whole, not starved, it is pin-free the advantages that, no longer need to carry out coating to its surface, and the simple process of the application, manufacturing cost are low.
Then, by taking glass fiber mesh and Teflon resin as an example, the preparation step of the application carbon fiber sole is illustrated
It is rapid:
Step 1: making compound release film, take one with a thickness of the glass fiber mesh of 0.05mm, contain on a surface of screen cloth
Teflon resin is soaked and sprays, through 380 DEG C or more hot settings, it is the compound of 0.04 smooth surface that obtaining, which has coefficient of friction,
Release film.
Step 2: on another surface of above-mentioned compound release film, painting is covered with spare with a thickness of the glue of 0.02mm.
Step 3: coated on one side is had into the surfacing of the above-mentioned compound release film (Teflon film) of glue, the patch of corrugationless
In die surface, it is then placed in soft material, is molded.
Step 4: by room temperature oil pressure platform precompressed 1min on mold, Teflon film being made to adhere completely on the mold surface.
Step 5: the preform of carbon fiber sole is put into the molding die for posting Teflon film, hot oil is put into and presents a theatrical performance as the last item on a programme,
In 150 DEG C of solidification 30min, make preform forming and hardening.
Step 6: after preform is solidified into molded product, mold being put into the cooling bench containing cooling water circulation and is cooled to 50
℃。
Step 7: taking out molded product, processing at related assembly hole location using numerically-controlled machine tool can be obtained the good carbon foot of appearance
Plate.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.
Although specifically showing and describing the application in conjunction with preferred embodiment, those skilled in the art should be bright
It is white, it is not departing from spirit and scope defined by the appended claims, in the form and details to this Shen
It please make a variety of changes, be the protection scope of the application.
Claims (10)
1. a kind of mould pressing process of carbon fiber sole, which comprises the steps of:
It is the compound release film of the smooth surface of 0.04-0.2 that making, which has coefficient of friction,；
Adhesive layer is coated on a surface of the compound release film；
The surface for being coated with the compound release film of the adhesive layer is pasted onto the cavity surface of mold securely；
The preform of sole is put into the mold, heats up, makes the preform forming and hardening；
After the preform is solidified into molded product, the mold containing the molded product is cooled down, carbon can be obtained
The molded product of fiber sole.
2. mould pressing process as described in claim 1, which is characterized in that it is the light of 0.04-0.2 that the production, which has coefficient of friction,
The step of compound release film on sliding surface includes:
Choose screen cloth；
At least one surface impregnation of the screen cloth had into hydrophobic and oleophobic surface characteristic resin material；
There is the screen cloth of the resin material after solidification impregnation, obtains the compound release film.
3. mould pressing process as claimed in claim 2, which is characterized in that the screen cloth with a thickness of 0.03mm-0.2mm, it is described
Screen cloth is glass fiber mesh.
4. mould pressing process as claimed in claim 2, which is characterized in that the glass transition point of the resin material is more than or equal to
200℃。
5. mould pressing process as claimed in claim 2, which is characterized in that the resin material is Teflon resin.
6. mould pressing process as described in claim 1, which is characterized in that the coefficient of friction is 0.04-0.1.
7. mould pressing process as described in claim 1, which is characterized in that the thickness of the adhesive layer is greater than 0.02mm, and is less than
Equal to 0.05mm.
8. mould pressing process as described in claim 1, which is characterized in that described to be coated with the described compound release of the adhesive layer
The surface of film is pasted onto the step of cavity surface of mold securely and includes:
The surface for being coated with the compound release film of the adhesive layer is affixed on to the cavity surface of mold；
It is put into soft material on the cavity surface, molds；
After the mold is suppressed the predetermined time at normal temperature, soft material is taken out, the compound release film can be made securely
It is pasted on the cavity surface of the mold.
9. mould pressing process as described in claim 1, which is characterized in that the solidification temperature of the preform is 100 DEG C -200 DEG C.
10. mould pressing process as described in claim 1, which is characterized in that the curing time of the preform is 20min-
60min。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910026053.3A CN109693396A (en) | 2019-01-11 | 2019-01-11 | A kind of mould pressing process of carbon fiber sole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910026053.3A CN109693396A (en) | 2019-01-11 | 2019-01-11 | A kind of mould pressing process of carbon fiber sole |
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| Publication Number | Publication Date |
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| CN109693396A true CN109693396A (en) | 2019-04-30 |
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ID=66233222
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910026053.3A Pending CN109693396A (en) | 2019-01-11 | 2019-01-11 | A kind of mould pressing process of carbon fiber sole |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112721243A (en) * | 2020-12-17 | 2021-04-30 | 江苏集萃复合材料装备研究所有限公司 | Rapid molding process for high-gloss product on surface of resin-based fiber composite material part |
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| CN105667017A (en) * | 2016-01-14 | 2016-06-15 | 中国科学院长春应用化学研究所 | Adhesive high temperature-resistant demoulding cloth and preparation method thereof |
| CN106945305A (en) * | 2017-04-06 | 2017-07-14 | 湖南大学 | Fibre reinforced composites preparation method and fibre reinforced composites |
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|---|---|---|---|---|
| CN103935051A (en) * | 2014-04-22 | 2014-07-23 | 黄建 | Cold and hot compression molding technology of carbon fiber 3D (three dimensional) product |
| CN105153961A (en) * | 2015-07-14 | 2015-12-16 | 江苏泰氟隆科技有限公司 | Production technology of polytetrafluoroethylene varnished cloth micro-porous adhesive tape |
| CN105667017A (en) * | 2016-01-14 | 2016-06-15 | 中国科学院长春应用化学研究所 | Adhesive high temperature-resistant demoulding cloth and preparation method thereof |
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| CN112721243A (en) * | 2020-12-17 | 2021-04-30 | 江苏集萃复合材料装备研究所有限公司 | Rapid molding process for high-gloss product on surface of resin-based fiber composite material part |
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