CN103029305A - Making method of carbon fiber housing - Google Patents
Making method of carbon fiber housing Download PDFInfo
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- CN103029305A CN103029305A CN2011103039851A CN201110303985A CN103029305A CN 103029305 A CN103029305 A CN 103029305A CN 2011103039851 A CN2011103039851 A CN 2011103039851A CN 201110303985 A CN201110303985 A CN 201110303985A CN 103029305 A CN103029305 A CN 103029305A
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Abstract
The invention relates to a making method of a carbon fiber housing, which comprises the following steps of: 1, stacking a thermoplastic resin impregnated carbon fiber base material into a laminar structure; 2, covering a thermoplastic film on the surface of the carbon fiber base material, placing the carbon fiber base material in a hot pressing mould with a vacuumizing structure; 3, assembling the hot pressing mould and heating the hot pressing mould to reach a glass conversion temperature of thermoplastic resin or film, vacuumizing the hot pressing mould by the vacuumizing structure, continuously heating the hot pressing mould to the melting temperature of the thermoplastic resin or film and forming a product; and 4, after forming, cooling the hot pressing mould and opening the mould for taking the product out. According to the making method of the carbon fiber housing, the thermoplastic film is coated on the outer layer of the carbon fiber base material, and the hot pressing mould is vacuumized, thus the defects of air holes in the surface and the inner part of the product, surface cracks and the like are effectively reduced, and the strength of the product is improved.
Description
[technical field]
The present invention relates to a kind of electronic product casing preparation method, be specifically related to the fine shell preparation method of a kind of carbon.
[background technology]
In the situation that people pursue high-quality life day by day, the consumer more and more pays close attention to moulding and the exterior decorative effect of 3C Product, and the development trend of 3C Product is to slimming, lightweight and high rigidity future development, and therefore, carbon fibre composite is taken seriously gradually.
General carbon fiber is to contain epoxy resin dipping with fiber, it is slightly had after the stickiness, then in mould, molded the shape of product through high temperature and high pressure in the Multilayer stack mode, yet the shortcoming of the method be hardening time long and surface and inside the defectives such as bubble and face crack are arranged, this defective descends intensity and need to grind through mending soil when subsequent paint, so that expends a large amount of manpowers, increases and makes difficulty, yield is low, can't scale of mass production.
[summary of the invention]
In view of above problem, the purpose of this invention is to provide the fine shell preparation method of a kind of carbon, the fine shell preparation method of this carbon can be improved product surface and the defectives such as inner pore and face crack, and improves its intensity.
In order to achieve the above object, the fine shell preparation method of carbon of the present invention, it may further comprise the steps:
(1) carbon fiber base material with the impregnation thermoplastic resin is stacked into layer structure;
(2) with above-mentioned carbon fiber base material surface coverage thermoplastic film, and put it in the hot pressing die with Vacuuming structure;
(3) after the hot pressing die matched moulds was heated to the glass transition temperature of thermoplastic resin or film, Vacuuming structure vacuumized hot pressing die, and hot pressing die continues to be heated to the melt temperature of above-mentioned thermoplastic resin or film, and shaped article;
(4) after the moulding, product is taken out in hot pressing die cooling and die sinking.
Especially, the thermoplastic resin in the above-mentioned steps (1) is PC or PMMA or PA or ABS or PC/ABS.
Especially, the material of the thermoplastic film in the above-mentioned steps (2) is PC or PMMA or PA or ABS or PC/ABS.
Especially, the thickness of the thermoplastic film in the above-mentioned steps (2) is 0.1～2mm.
Especially, Vacuuming structure is vavuum pump in the above-mentioned steps (2), and also is provided with the passage that is connected with this Vacuuming structure in the above-mentioned hot pressing die.
Especially, the temperature that hot pressing die heats in the above-mentioned steps (3) is at 70～200 ℃.
Especially, the rear temperature of hot pressing die cooling is lower than 60 ℃ in the above-mentioned steps (4).
Compared to prior art, the fine shell preparation method of carbon of the present invention, by carbon fiber impregnation thermoplastic resin, then in hot pressing die, give the Pressurized-heated shaped article in the Multilayer stack mode, the fine shell preparation method of this carbon is at the outer cover heating plastic films of carbon fiber base material, and hot pressing die vacuumized, effectively reduce the defectives such as product surface and inner pore and face crack, and improved the intensity of product.
[description of drawings]
Fig. 1 illustrates the flow chart of the fine shell preparation method of carbon of the present invention.
The cutaway view of the hot pressing die when Fig. 2 illustrates with the fine shell preparation method making of carbon of the present invention product.
Fig. 3 illustrates the cutaway view of the product of finishing with the fine shell preparation method of carbon of the present invention.
[specific embodiment]
For purpose of the present invention, method step and function are had further understanding, see also Fig. 1, Fig. 2 and Fig. 3 and be described in detail as follows:
Embodiment 1
Step 101: get the carbon fiber base material 300 of impregnation thermoplastic resin, this carbon fiber base material 300 is looked product needed and be can be single or multiple lift, and the different angles storehouse becomes layer structure together, is processed into 12 cun shapes that notebook computer casing is required;
Step 102: thermoplastic film 400 adopts the PC film, this PC film is made into 12 cun shapes that notebook computer casing is required, at first the PC film is put into the orlop of hot pressing die 100 dies with Vacuuming structure, then in hot pressing die 100, put into the carbon fiber base material 300 of above-mentioned impregnation thermoplastic resin, cover the PC film at these carbon fiber base material 300 upper surfaces, this Vacuuming structure is vavuum pump in the present embodiment, is provided with the passage 200 that is connected with this Vacuuming structure in this hot pressing die 100;
Step 103: hot pressing die 100 is heated to 100 ℃ of matched moulds shaped articles, be about to hot pressing die 100 heating, behind the glass transition temperature that is heated to thermoplastic resin or PC film, above-mentioned Vacuuming structure vacuumizes hot pressing die 100, continues to be warmed up to the melt temperature shaped article of thermoplastic resin or PC film;
Step 104: after the formed product, hot pressing die is cooled to about 50 ℃ and product is taken out in die sinking.
Via the fine shell of the carbon of above-mentioned steps generation, see also cutaway view structure shown in Figure 3, its upper strata and lower floor are thermoplastic film 400--PC film, the centre is carbon fiber base material 300, thermoplastic film 400 is covered in this carbon fiber base material 300 surfaces, and the two is combined as a whole to make it through heating mode, this thermoplastic film 400 covered carbon fiber base material 300 surfaces such as bubble 500 or defects i.e.cracks, make the outward appearance of product neat, make things convenient for the outward appearance of subsequent product to process, and by hot pressing die 100 is vacuumized, make carbon fiber base material 300 inside without bubble.
Embodiment 2
Step 201: get the carbon fiber base material 300 of impregnation thermoplastic resin, this carbon fiber base material 300 is looked product needed and be can be single or multiple lift, and the different angles storehouse becomes layer structure together, is processed into 13.3 cun shapes that notebook computer shell is required;
Step 202: thermoplastic film 400 adopts the PC/ABS film, this PC/ABS film is made into 13.3 cun shapes that notebook computer shell is required, at first the PC/ABS film is put into the orlop of hot pressing die 100 dies with Vacuuming structure, then in hot pressing die 100, put into the carbon fiber base material 300 of above-mentioned impregnation thermoplastic resin, cover the PC/ABS film at these carbon fiber base material 300 upper surfaces, this Vacuuming structure is vavuum pump in the present embodiment, is provided with the passage 200 that is connected with this Vacuuming structure in this hot pressing die 100;
Step 203: hot pressing die 100 is heated to 75 ℃ of matched moulds shaped articles, be about to hot pressing die 100 heating, behind the glass transition temperature that is heated to thermoplastic resin or PC/ABS film, above-mentioned Vacuuming structure vacuumizes hot pressing die 100, continues to be warmed up to the melt temperature shaped article of thermoplastic resin or PC/ABS film;
Step 204: after the formed product, hot pressing die 100 is cooled to about 45 ℃ and product is taken out in die sinking.
Via the fine shell of the carbon of above-mentioned steps generation, see also cutaway view structure shown in Figure 3, its upper strata and lower floor are thermoplastic film 400--PC/ABS film, the centre is carbon fiber base material 300, thermoplastic film 400 is covered in this carbon fiber base material 300 surfaces, and the two is combined as a whole to make it through heating mode, this thermoplastic film 400 covered carbon fiber base material 300 surfaces such as bubble 500 or defects i.e.cracks, make the outward appearance of product neat, strengthen the intensity of product appearance, make things convenient for the outward appearance of subsequent product to process, and by hot pressing die is vacuumized, make carbon fiber base material 300 inside without bubble.
The fine shell preparation method of carbon of the present invention not only can be used for computer casing, can also be applied in other electronic products such as handset shell.Be pointed out that, the invention is not restricted to above-mentioned embodiment, any simple modification, equivalent variations and modification that any those skilled in the art do above-described embodiment based on technical solution of the present invention all fall within the scope of protection of the present invention.
Claims (7)
1. the fine shell preparation method of carbon is characterized in that, the fine shell preparation method of this carbon may further comprise the steps:
(1) carbon fiber base material with the impregnation thermoplastic resin is stacked into layer structure;
(2) with above-mentioned carbon fiber base material surface coverage thermoplastic film, and put it in the hot pressing die with Vacuuming structure;
(3) after the hot pressing die matched moulds was heated to the glass transition temperature of thermoplastic resin or film, Vacuuming structure vacuumized hot pressing die, and hot pressing die continues to be heated to the melt temperature of above-mentioned thermoplastic resin or film, and shaped article;
(4) after the moulding, product is taken out in hot pressing die cooling and die sinking.
2. the fine shell preparation method of carbon according to claim 1 is characterized in that, the thermoplastic resin in the above-mentioned steps (1) is PC or PMMA or PA or ABS or PC/ABS.
3. the fine shell preparation method of carbon according to claim 1 is characterized in that, the material of the thermoplastic film in the above-mentioned steps (2) is PC or PMMA or PA or ABS or PC/ABS.
4. according to claim 1 or the fine shell preparation methods of 3 described carbon, it is characterized in that, the thickness of the thermoplastic film in the above-mentioned steps (2) is 0.1～2mm.
5. the fine shell preparation method of carbon according to claim 1 is characterized in that, Vacuuming structure is vavuum pump in the above-mentioned steps (2), and also is provided with the passage that is connected with this Vacuuming structure in the above-mentioned hot pressing die.
6. the fine shell preparation method of carbon according to claim 1 is characterized in that, the temperature of hot pressing die heating is at 70～200 ℃ in the above-mentioned steps (3).
7. the fine shell preparation method of carbon according to claim 1 is characterized in that, the rear temperature of hot pressing die cooling is lower than 60 ℃ in the above-mentioned steps (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103039851A CN103029305A (en) | 2011-10-10 | 2011-10-10 | Making method of carbon fiber housing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103039851A CN103029305A (en) | 2011-10-10 | 2011-10-10 | Making method of carbon fiber housing |
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| CN103029305A true CN103029305A (en) | 2013-04-10 |
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| CN2011103039851A Pending CN103029305A (en) | 2011-10-10 | 2011-10-10 | Making method of carbon fiber housing |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104175569A (en) * | 2014-07-21 | 2014-12-03 | 青岛顺益新材料科技有限公司 | Method for manufacturing fiber reinforced thermoplastic composite materials |
| CN104536553A (en) * | 2015-01-06 | 2015-04-22 | 江西科技学院 | Manufacturing method of computer power adapter shell |
| CN105291448A (en) * | 2015-10-28 | 2016-02-03 | 东华大学 | Preparation device and method for three-dimensional hollow composite material |
| CN105323340A (en) * | 2015-10-30 | 2016-02-10 | 苏州天擎电子通讯有限公司 | Novel plastic mobile phone shell |
| TWI610811B (en) * | 2013-10-04 | 2018-01-11 | Advanced International Multitech Co Ltd | Method for manufacturing carbon fiber outer casing with side wall |
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| DE3704036A1 (en) * | 1987-02-10 | 1988-08-18 | Menzolit Gmbh | Process and device for the production of a fibre-reinforced thermoplastic moulding |
| EP0389798A2 (en) * | 1989-03-31 | 1990-10-03 | General Electric Company | Process for impregnation of glass fiber reinforcement with thermoplastic resins and for producing articles from the impregnated glass fiber |
| US5236646A (en) * | 1991-02-28 | 1993-08-17 | The United States Of America As Represented By The Secretary Of The Navy | Process for preparing thermoplastic composites |
| EP0605213A1 (en) * | 1992-12-28 | 1994-07-06 | MITSUI TOATSU CHEMICALS, Inc. | Fiber-reinforced resin molded articles and production process thereof |
| CN101037022A (en) * | 2006-03-15 | 2007-09-19 | 东原材料科技股份有限公司 | Method of processing the surface of glass fiber strengthened plastic material |
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| US4590027A (en) * | 1976-06-10 | 1986-05-20 | Murphy David J | Method of producing a thermoplastics material |
| JPS6120728A (en) * | 1984-07-10 | 1986-01-29 | Matsushita Electric Works Ltd | Preparation of laminate board |
| DE3704036A1 (en) * | 1987-02-10 | 1988-08-18 | Menzolit Gmbh | Process and device for the production of a fibre-reinforced thermoplastic moulding |
| EP0389798A2 (en) * | 1989-03-31 | 1990-10-03 | General Electric Company | Process for impregnation of glass fiber reinforcement with thermoplastic resins and for producing articles from the impregnated glass fiber |
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| EP0605213A1 (en) * | 1992-12-28 | 1994-07-06 | MITSUI TOATSU CHEMICALS, Inc. | Fiber-reinforced resin molded articles and production process thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI610811B (en) * | 2013-10-04 | 2018-01-11 | Advanced International Multitech Co Ltd | Method for manufacturing carbon fiber outer casing with side wall |
| CN104175569A (en) * | 2014-07-21 | 2014-12-03 | 青岛顺益新材料科技有限公司 | Method for manufacturing fiber reinforced thermoplastic composite materials |
| CN104536553A (en) * | 2015-01-06 | 2015-04-22 | 江西科技学院 | Manufacturing method of computer power adapter shell |
| CN104536553B (en) * | 2015-01-06 | 2017-10-13 | 江西科技学院 | A kind of preparation method of computer power adapter housing |
| CN105291448A (en) * | 2015-10-28 | 2016-02-03 | 东华大学 | Preparation device and method for three-dimensional hollow composite material |
| CN105291448B (en) * | 2015-10-28 | 2017-10-24 | 东华大学 | The preparation facilities and method of a kind of three-dimensional hollow composite |
| CN105323340A (en) * | 2015-10-30 | 2016-02-10 | 苏州天擎电子通讯有限公司 | Novel plastic mobile phone shell |
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Application publication date: 20130410 |
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