CN103862663B - A kind of hot-forming method - Google Patents
A kind of hot-forming method Download PDFInfo
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- CN103862663B CN103862663B CN201210549449.4A CN201210549449A CN103862663B CN 103862663 B CN103862663 B CN 103862663B CN 201210549449 A CN201210549449 A CN 201210549449A CN 103862663 B CN103862663 B CN 103862663B
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Abstract
This application discloses a kind of hot-forming method, be applied to a heat pressing forming machines, heat pressing forming machines includes that a heating mould, heating mould include the first masterplate and the second masterplate, and the method includes: be fitted in by the first film on the first masterplate；To treat that hot pressing layer is put on the first film；Gas-permeable nets stratification is placed on the upper surface treating hot pressing layer；Second thin film is covered the upper surface at ventilative stratum reticulare；Seal the first film and the edge of the second thin film, so that treating in the sealing bag that hot pressing layer and gas-permeable nets stratification are placed on the first film and the second thin film composition；Extract the air sealed in bag out；Second masterplate is put in the upper surface of the second thin film, so that treating that hot pressing layer and ventilative stratum reticulare are positioned between the first template and described second template；Heating mould is put in heat pressing forming machines, carries out hot-forming, to obtain by the workpiece treating hot pressing layer hot briquetting.
Description
Technical field
The application relates to the manufacture field of electronic equipment, particularly to a kind of hot-forming method.
Background technology
Carbon fiber is the new material of a kind of excellent in mechanical performance, and it not only has the intrinsic intrinsic property of material with carbon element, holds concurrently again
The soft machinability of tool textile fabric, is a new generation's reinforcing fiber, is widely used in civilian, military, building, chemical industry, work
Industry, space flight and Super Car field.
At present, along with carbon fiber is increasingly widely applied in the manufacture of notebook computer shell, requirement in product design
The mode that traditional leather dope spraying covers can not be continued to use, but use the 3D hot press forming technology high light UV resin of collocation of shell
The mode that coating carries out decorating completes the forming step to carbon fiber casing.
But present inventor during inventive technique scheme, finds above-mentioned technology extremely in realizing the embodiment of the present application
There is following technical problem less:
The method that carbon fiber forming in existing 3D hot extrusion briquetting technique directly uses hot pressing, the work that this method makes
Part is rough, and therefore, in order to make the casing smooth surface of manufacture, prior art needs to carry out later stage polishing and the dress that sprays paint
Decorations, so, it is many to deposit step in a manufacturing process in prior art, and the technical problem of complexity；
It addition, existing hot extrusion briquetting technique is owing to being affected by mould and resin, there is also can not be directly by transparent tree
Membrane of lipoprotein covers the technical problem realizing exempting from spraying at carbon fiber surface.
Summary of the invention
The embodiment of the present application is by providing a kind of hot-forming method, in order to solve to exist in prior art manufacturing process
Middle step is many, and the technical problem of complexity.
A kind of hot-forming method that the embodiment of the present application provides, is applied to a heat pressing forming machines, described hot-forming
Machine includes that a heating mould, described heating mould include the first masterplate and the second masterplate, and described method includes:
The first film is fitted on described first masterplate；
To treat that hot pressing layer is put on described the first film；
The upper surface of hot pressing layer is treated described in being placed on by gas-permeable nets stratification；
Second thin film is covered the upper surface at described ventilative stratum reticulare；
Seal the edge of described the first film and described second thin film so that described in treat hot pressing layer and described ventilative stratum reticulare
It is seated in the sealing bag of described the first film and described second thin film composition；
Extract the air in described sealing bag out；
Described second masterplate is put in the upper surface of described second thin film so that described in treat hot pressing layer and described ventilative stratum reticulare
It is positioned between described first masterplate and described second masterplate；
Described heating mould is put in described heat pressing forming machines, carries out hot-forming, treated hot pressing layer to obtain by described
The workpiece of hot briquetting.
Optionally, described the first film is fitted on described first masterplate particularly as follows:
Vacuum pressure reduction suction type is utilized to be adsorbed on described first masterplate by described the first film.
Optionally, described in treat hot pressing layer the most successively particularly as follows: the first antiblocking layers, N shell treats hot pressing layer of feed stock material,
Second antiblocking layers, wherein, N is the integer more than or equal to 2.
Optionally, when N is more than 3, hot pressing layer of feed stock material is treated to N-1 layer for the 2nd layer in described N shell hot pressing layer of feed stock material
In at least one of which treat that hot pressing layer of feed stock material is specially loss of weight layer.
Optionally, treat that the 1st layer in hot pressing layer of feed stock material is treated hot pressing raw material at described first antiblocking layers and described N shell
Between Ceng, also include resin bed.
Optionally, the air in described extraction described sealing bag particularly as follows:
Described air is discharged by the bleeding point sealed on bag consisted of described the first film and described second thin film
Described sealing bag.
Optionally, described described heating mould is put in described heat pressing forming machines, carries out hot-forming, to obtain by institute
State the workpiece treating hot pressing layer hot briquetting, specifically include:
By described ventilative stratum reticulare, the air produced during hot-forming is drained into described the first film with described
In the sealing bag that second thin film is constituted；
By described bleeding point, described air is discharged described sealing bag；
Carry out hot-forming, it is thus achieved that by the described workpiece treating hot pressing layer hot briquetting.
The one or more technical schemes provided in the embodiment of the present application, at least have the following technical effect that or advantage:
(1) owing in the embodiment of the present application, using the environment utilizing double-layer films to manufacture a vacuum, will treat that hot pressing is former
Material and one layer of gas-permeable nets are placed in the environment of this vacuum the technological means carrying out hot pressing, in hot pressing, by thoroughly
The bubble that raw material in hot pressing produces is discharged in the environment that double-layer films is constituted by gas net, then by gas from thin film environment
Bubble is discharged, and maintains the vacuum state of thin film environment all the time, thus obtains the carbon fiber casing of any surface finish, i.e. implements in the application
In example, it is not necessary to later stage polishing and spray-painting and decorating, solve that to deposit step in a manufacturing process in prior art many, and complexity
Technical problem, it is achieved that only just can be produced the technique effect of standard compliant hot pressing workpiece by heat pressing process.
(2) owing in the embodiment of the present application, the carbon fiber layer that needs are hot pressed by employing is placed in being made up of thin film true
Altitude comes the technological means of hot pressing, when in order to obtain fineness higher carbon fiber casing when, can be directly at carbon
Fibrolaminar load below or above covers one layer of epoxy resin layer, and epoxy resin layer is put in together with carbon fiber layer vacuum environment
Hot pressing, i.e. can get fineness more preferable carbon fiber casing, solve prior art exist can not be the thinnest by transparent resin
Film covers the technical problem realizing exempting from spraying at carbon fiber surface, it is achieved that only just can obtain bright and clean carbon fiber by hot pressing
The technique effect of casing.
Accompanying drawing explanation
A kind of hot-forming method flow diagram that Fig. 1 provides for the embodiment of the present application；
The schematic diagram respectively treating hot pressing layer lay level that Fig. 2 provides for the embodiment of the present application.
Detailed description of the invention
The embodiment of the present application, by providing a kind of hot-forming method, solves in prior art and deposits in a manufacturing process
Step is many, and the technical problem of complexity.
Technical scheme in the embodiment of the present application is for solving the problems referred to above, and general thought is as follows:
Thering is provided a kind of hot-forming method, be applied to a heat pressing forming machines, described heat pressing forming machines includes a heated mould
Tool, described heating mould includes the first masterplate and the second masterplate, and described method includes:
The first film is fitted on described first masterplate；
To treat that hot pressing layer is put on described the first film；
The upper surface of hot pressing layer is treated described in being placed on by gas-permeable nets stratification；
Second thin film is covered the upper surface at described ventilative stratum reticulare；
Seal the edge of described the first film and described second thin film so that described in treat hot pressing layer and described ventilative stratum reticulare
It is seated in the sealing bag of described the first film and described second thin film composition；
Extract the air in described sealing bag out；
Described second masterplate is put in the upper surface of described second thin film so that described in treat hot pressing layer and described ventilative stratum reticulare
It is positioned between described first template and described second template；
Described heating mould is put in described heat pressing forming machines, carries out hot-forming, treated hot pressing layer to obtain by described
The workpiece of hot briquetting.
Visible, the embodiment of the present application, owing to using the environment utilizing double-layer films to manufacture a vacuum, will treat the former material of hot pressing
Material and one layer of gas-permeable nets are placed in the environment of this vacuum the technological means carrying out hot pressing, in hot pressing, by ventilative
The bubble that raw material in hot pressing produces is discharged in the environment that double-layer films is constituted by net, then by bubble from thin film environment
Discharge, maintain the vacuum state of thin film environment all the time, thus obtain the carbon fiber casing of any surface finish, solve in prior art
The carbon fiber casing in order to obtain any surface finish existed, needs later stage polishing and spray-painting and decorating to cause in manufacturing process and walk
Rapid many and complicated technical problems, it is achieved that only just can be produced the technology effect of standard compliant hot pressing workpiece by heat pressing process
Really.
In order to be better understood from technique scheme, below in conjunction with Figure of description and specific embodiment to upper
State technical scheme to be described in detail.
Hot-press molding method in the embodiment of the present application, be applied to a heat pressing forming machines to need be hot pressed raw-material
In hot pressing, the hot-forming raw material referring to be hot pressed needs is put in mould, and mould includes upper and lower two masterplates, then
Mould is sandwiched between the upper and lower electric hot plate of heat pressing forming machines, presses under electric hot plate intelligent constant-temperature, make raw material molding.
As it is shown in figure 1, the hot-forming method that the application provides, specifically include step:
S1: the first film is fitted on described first masterplate；
In specific implementation process, the first film in step S1 refers specifically to the second thin film in following step S4
After the two is closed together, it is possible to form the thin film of an airtight vacuum space, thin with PET in the embodiment of the present application
Film illustrates as a example by the first film and the second thin film, as in figure 2 it is shown, the first masterplate in this step refers specifically to mould
The lower bolster of tool, the specific implementation process being fitted in by the first film on described first masterplate is: utilize vacuum pressure reduction absorption side
Described the first film is adsorbed on described first masterplate by formula, to ensure not having air between the first film and lower masterplate.
Visible, the first film is adsorbed on the first masterplate by the embodiment of the present application owing to using vacuum pressure reduction suction type
Technological means, it is achieved that will fit tightly between the first film and the first masterplate, for forming the technology effect that vacuum system is prepared
Really.
S2: will treat that hot pressing layer is put on described the first film；
In specific implementation process, treat that hot pressing layer refers to need to be hot pressed the raw material of molding, such as glass fibre or carbon
Fiber, in the embodiment of the present application with by carbon fiber thermal molded as Laptop case as a example by illustrate.
Further, described in treat hot pressing layer the most successively particularly as follows: the first antiblocking layers, N shell treats hot pressing raw material
Layer, the second antiblocking layers, wherein, N is the integer more than or equal to 2.
In specific implementation process, be put in mould treat hot pressing layer from bottom to up particularly as follows: the first antiblocking layers,
1 arrives N shell carbon fiber layer, and the second antiblocking layers, the first antiblocking layers in this step is positioned at the first film and the 1st layer of carbon fiber
Between Ceng, between second antiblocking layers ventilative stratum reticulare and n-th layer carbon fiber layer in following step S3, adherent layer is concrete
Effect is to prevent carbon fiber layer and thin film or ventilative stratum reticulare adhesion, so will be below the 1st of N shell carbon fiber layer and n-th layer
Distinguish one layer of antiblocking layers of lay above, with by carbon fiber layer and other cover layers isolation below and above.
Visible, the embodiment of the present application is owing to using the technology of the most each layer overlay antiblocking layers at N shell carbon fiber layer
Means, it is achieved that effectively prevent carbon fiber layer from producing adhesion with adjacent thin layer and ventilative stratum reticulare in hot pressing.
Further, when N is more than or equal to 3, treat that hot pressing is former to N-1 layer for the 2nd layer in described N shell hot pressing layer of feed stock material
At least one of which in material layer treats that hot pressing layer of feed stock material is specially loss of weight layer.
In specific implementation process, loss of weight layer has referred to certain thickness, but the material layer that weight is the least, such as, this
PMI hard foam in application embodiment, owing to the weight ratio of carbon fiber layer is relatively big, is ensureing that the notebook computer shell made is thick
In the case of degree is the same, in order to alleviate the weight of carbon fiber casing, in the hot pressing to carbon fiber layer, can be by N shell carbon
Which floor the fibrolaminar number of plies removes, and replaces with PMI hard foam, names a concrete example, carbon to be manufactured
Fiber casing needs 8 layers of carbon fiber layer, in order to reduce the weight of casing, it is possible to by 4 layers of carbon fiber layer of middle 3 to 6th layer
Replace with PMI hard foam, as long as the thickness holding of the thickness of PMI hard foam and 4 carbon fiber layers.
Visible, the embodiment of the present application is owing to using the material band of lightweight to replace the technological means of middle carbon fiber layer, real
Showed make the carbon fiber casing of production in the case of being of uniform thickness, the technique effect that weight is less.
Further, treat, between hot pressing layer of feed stock material, also to include resin described first antiblocking layers and described 1st layer
Layer.
In specific implementation process, use the carbon fiber casing surface that the hot-press molding method of the embodiment of the present application produces very
Bright and clean, have been able to reach standard-required, if but user want further up to the brightest and the cleanest degree, or be intended to
The inside and outside two sides making the casing of production all reaches bright and clean effect, before carrying out hot pressing, and can be in the 1st of N shell carbon fiber layer
Each covering one layer of epoxy resin film below or above n-th layer, so, the casing after hot briquetting will be brighter and cleaner.
Visible, the carbon fiber layer that needs are hot pressed by the embodiment of the present application employing is placed on and is made up of in middle vacuum environment thin film
Carry out the technological means of hot pressing, when in order to obtain fineness higher carbon fiber casing when, can be directly at carbon fiber layer
Carry below or above and cover one layer of epoxy resin layer, epoxy resin layer is put in together with carbon fiber layer vacuum environment hot pressing, i.e.
Available fineness more preferable carbon fiber casing, solves can not directly being covered by transparent resin film of prior art existence and exist
Carbon fiber surface realizes exempting from the technical problem of spraying, it is achieved that only just can be obtained the skill of bright and clean carbon fiber casing by hot pressing
Art effect.
S3: treat the upper surface of hot pressing layer described in being placed on by gas-permeable nets stratification；
In specific implementation process, after the carbon fiber layer and antiblocking layers for the treatment of hot pressing are all completed, to prevent second
One layer of gas-permeable nets of the above covering of adhering layer, gas-permeable nets is specifically as follows the stratum reticulare of plastics, and the effect of gas-permeable nets is in hot pressing
During, the bubble that hot pressing produces is discharged in the vacuum space that thin film is formed from carbon fiber layer, the bubble prevented
The carbon fiber casing making production is rough.
Visible, owing to using at one layer of gas-permeable nets of the top of the carbon fiber layer treating hot pressing covering in the embodiment of the present application
Technological means, it is achieved that the technique effect bubble produced in hot pressing can discharged from carbon fiber layer.
S4: the second thin film is covered the upper surface at described ventilative stratum reticulare；
In specific implementation process, when treating that hot pressing carbon fiber layer is all sequentially coated on the first film it with ventilative stratum reticulare etc.
After, finally the second thin film is covered on ventilative stratum reticulare.
S5: seal the edge of described the first film and described second thin film so that described in treat hot pressing layer and described ventilative
Stratum reticulare is seated in the sealing bag of described the first film and described second thin film composition；
In specific implementation process, after the second thin film being covered on gas-permeable nets through previous step, just by the
One thin film and the second thin film seal along masterplate surrounding pressure-resistant material, and special vacuum pumping opening is embedded to two thin film simultaneously
In the confined space formed, the confined space formed by double-layer films is made can only outwardly to discharge gas by bleeding point, other
Local the most all sealings.
S6: extract the air in described sealing bag out；
In specific implementation process, through previous step, treat that hot pressing carbon fiber layer and gas-permeable nets wait hot pressing layer all
Being sealed in the confined space of the first film and the formation of the second thin film, this step carries out extracting the air sealed in space out: logical
Cross described the first film, with the bleeding point sealed on bag that described second thin film is constituted, air is discharged described sealing bag, make
State each layer to be closely pressed together on lower bolster, and make double-layer films form a vacuum environment.
S7: described second masterplate is put in the upper surface of described second thin film so that described in treat that hot pressing layer is ventilative with described
Stratum reticulare is positioned between described first template and described second template；
In specific implementation process, the second masterplate is placed on above the sealing bag formed, makes inside include needing heat
Sealing in the mould that bag is put in the first masterplate and the second masterplate composition of laminate layer.
S8: be put in described heat pressing forming machines by described heating mould, carry out hot-forming, is treated hot pressing to obtain by described
The workpiece of layer hot briquetting.
Further, described described heating mould is put in described heat pressing forming machines, carries out hot-forming, with obtain by
The described workpiece treating hot pressing layer hot briquetting, specifically includes:
By described ventilative stratum reticulare, the air produced during hot-forming is drained into described the first film with described
In the sealing bag that second thin film is constituted；
By described bleeding point, described air is discharged described sealing bag；
Carry out hot-forming, it is thus achieved that by the described workpiece treating hot pressing layer hot briquetting.
In specific implementation process, the mould including thermosphere to be added is put in heat pressing forming machines, carries out hot-forming,
During hot-forming, the bubble produced in carbon fiber layer is drained in vacuum seal bag by gas-permeable nets, then by sealing
Bag bleeding point above is discharged sealing the gas within bag, makes to remain in sealing bag vacuum state, will seal bag 100
Spend to hot pressing at a temperature of 120 degree, the general left and right of general carbon fiber casing can molding, molding complete after die sinking, reduce pressure, by molding
Workpiece take out, remove upper and lower double-layer films, carbon fiber casing is complete with regard to molding.
The one or more technical schemes provided in the embodiment of the present application, at least have the following technical effect that or advantage:
(1) owing in the embodiment of the present application, using the environment utilizing double-layer films to manufacture a vacuum, will treat that hot pressing is former
Material and one layer of gas-permeable nets are placed in the environment of this vacuum the technological means carrying out hot pressing, in hot pressing, by thoroughly
The bubble that raw material in hot pressing produces is discharged in the environment that double-layer films is constituted by gas net, then by gas from thin film environment
Bubble is discharged, and maintains the vacuum state of thin film environment all the time, thus obtains the carbon fiber casing of any surface finish, i.e. implements in the application
In example, it is not necessary to later stage polishing and spray-painting and decorating, solve that to deposit step in a manufacturing process in prior art many, and complexity
Technical problem, it is achieved that only just can be produced the technique effect of standard compliant hot pressing workpiece by heat pressing process.
(2) owing in the embodiment of the present application, the carbon fiber layer that needs are hot pressed by employing is placed in being made up of thin film true
Altitude comes the technological means of hot pressing, when in order to obtain fineness higher carbon fiber casing when, can be directly at carbon
Fibrolaminar load below or above covers one layer of epoxy resin layer, and epoxy resin layer is put in together with carbon fiber layer vacuum environment
Hot pressing, i.e. can get fineness more preferable carbon fiber casing, solve prior art exist can not be the thinnest by transparent resin
Film covers the technical problem realizing exempting from spraying at carbon fiber surface, it is achieved that only just can obtain bright and clean carbon fiber by hot pressing
The technique effect of casing.
Obviously, those skilled in the art can carry out various change and the modification essence without deviating from the present invention to the present invention
God and scope.So, if these amendments of the present invention and modification belong to the scope of the claims in the present invention and equivalent technologies thereof
Within, then the present invention is also intended to comprise these change and modification.
Claims (7)
1. a hot-forming method, is applied to a heat pressing forming machines, and described heat pressing forming machines includes a heating mould, described
Heating mould includes the first masterplate and the second masterplate, it is characterised in that including:
The first film is fitted on described first masterplate；
To treat that hot pressing layer is put on described the first film；
The upper surface of hot pressing layer is treated described in being placed on by gas-permeable nets stratification；
Second thin film is covered the upper surface at described ventilative stratum reticulare；
Seal the edge of described the first film and described second thin film so that described in treat that hot pressing layer and described gas-permeable nets stratification are put
In the sealing bag that described the first film and described second thin film are constituted；
Extract the air in described sealing bag out；
Described second masterplate is put in the upper surface of described second thin film so that described in treat that hot pressing layer and described ventilative stratum reticulare are placed
In between described first masterplate and described second masterplate；
Described heating mould is put in described heat pressing forming machines, carries out hot-forming, treated that hot pressing layer heats to obtain by described
The workpiece of molding.
2. the method for claim 1, it is characterised in that described the first film is fitted on described first masterplate concrete
For:
Vacuum pressure reduction suction type is utilized to be adsorbed on described first masterplate by described the first film.
3. the method for claim 1, it is characterised in that described in treat hot pressing layer the most successively particularly as follows: first prevent
Adhering layer, N shell treats hot pressing layer of feed stock material, the second antiblocking layers, and wherein, N is the integer more than or equal to 2.
4. method as claimed in claim 3, it is characterised in that when N is more than 3, the 2nd in described N shell hot pressing layer of feed stock material
To N-1 layer, layer treats that at least one of which in hot pressing layer of feed stock material treats that hot pressing layer of feed stock material is specially loss of weight layer.
5. method as claimed in claim 4, it is characterised in that treat the former material of hot pressing at described first antiblocking layers and described N shell
Treat, between hot pressing layer of feed stock material, also to include resin bed for the 1st layer in the bed of material.
6. the method for claim 1, it is characterised in that air in described extraction described sealing bag particularly as follows:
Described air is discharged described by the bleeding point sealed on bag consisted of described the first film and described second thin film
Seal bag.
7. method as claimed in claim 6, it is characterised in that described described heating mould is put in described heat pressing forming machines
In, carry out hot-forming, to obtain by the described workpiece treating hot pressing layer hot briquetting, specifically include:
By described ventilative stratum reticulare, the air produced during hot-forming is drained into described the first film and described second
In the sealing bag that thin film is constituted；
By described bleeding point, described air is discharged described sealing bag；
Carry out hot-forming, it is thus achieved that by the described workpiece treating hot pressing layer hot briquetting.
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| CN201210549449.4A CN103862663B (en) | 2012-12-17 | 2012-12-17 | A kind of hot-forming method |
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| CN201210549449.4A CN103862663B (en) | 2012-12-17 | 2012-12-17 | A kind of hot-forming method |
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| CN103862663B true CN103862663B (en) | 2016-12-28 |
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| CN114986778B (en) * | 2022-06-01 | 2024-07-02 | 德清火狐科技有限公司 | Die for producing and processing high-strength antiriot clothing |
| CN115181425B (en) * | 2022-06-02 | 2023-11-07 | 华中科技大学 | Preparation method of thermoplastic polymer film |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101676091A (en) * | 2008-09-19 | 2010-03-24 | 明安国际企业股份有限公司 | Manufacturing method of composite material work piece with matte appearance |
| CN202498676U (en) * | 2012-03-22 | 2012-10-24 | 台州市家得宝日用品有限公司 | Continuous fiber reinforced polypropylene foamed plate forming device |
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2012
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101676091A (en) * | 2008-09-19 | 2010-03-24 | 明安国际企业股份有限公司 | Manufacturing method of composite material work piece with matte appearance |
| CN202498676U (en) * | 2012-03-22 | 2012-10-24 | 台州市家得宝日用品有限公司 | Continuous fiber reinforced polypropylene foamed plate forming device |
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