CN102626974A - Carbon fiber shell processing technique - Google Patents
Carbon fiber shell processing technique Download PDFInfo
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- CN102626974A CN102626974A CN2012100891238A CN201210089123A CN102626974A CN 102626974 A CN102626974 A CN 102626974A CN 2012100891238 A CN2012100891238 A CN 2012100891238A CN 201210089123 A CN201210089123 A CN 201210089123A CN 102626974 A CN102626974 A CN 102626974A
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Abstract
The invention discloses a carbon fiber shell processing technique which comprises the following steps: 1), processing a carbon fiber sheet, that is, cutting a carbon fiber prepreg material into certain dimensions and paving 2-4 layers of materials; 2), processing a stimulated carbon fiber sheet, that is, printing oil ink on the back surface of the texture of the sheet and cutting the sheet; 3), adhering the carbon fiber sheet and the stimulated carbon fiber sheet together, that is, adhering the well prepared carbon fiber sheet and the stimulated carbon fiber sheet in a hot pressing way a according to the product requirements; 4), performing injection moulding, that is, adhering the two materials into a whole body by means of hot pressing, and putting the adhered materials into an injection moulding cavity for injection moulding. The product is blocked and molded in an injection way with the help of an IML technique, the surface treatment technique of the product is simplified, the problems of difficulty in processing and complexity in procedures, which are generated when the carbon fiber product is subjected to surface treatment, are overcome, and the characteristics of light weight and high strength of carbon fibers are skillfully used; due to the adoption of the technique, the weight of the product is reduced, a fine blockage structure is generated, the production efficiency and the yield are improved, so that the carbon fiber shell processing technique has excellent practical applicability and economic benefits.
Description
Technical field
The present invention relates to a kind of carbon fiber housing processing technology, relate in particular to a kind of carbon fiber and imitative carbon fiber plate hot pressing and fit after the processing consumption electronic product housing technology of injection mo(u)lding.
Background technology:
Common mobile phone; Consumption electronic product housings such as panel computer are plastic cement or metal structure, and the housing total quality is heavier, and the product that has is for the deficiency on balance mass and the intensity; Can be used in combination metal and plastic material; On some supporting structures, use metal, use plastic cement in the zone that force request is lower, but these improvement can not farthest embody the mechanical property of product design requirement.For this reason, it is better that people have invested structural strength to eye, the fiber composite reinforcing material that quality is lighter; Wherein the carbon fiber composite reinforcing material becomes the focus that people pay close attention to; To showing very high intensity, carbon fiber proportion is little, has very high specific strength along fiber axis for carbon fibre material.The proportion of carbon fiber is not as good as 1/4 of steel, and tensile strength more than 3500MPa, is 7～9 times of steel generally, and tensile modulus of elasticity also is higher than steel, is 23000～43000MPa, and its strength of materials density ratio can reach 2000MPa/ (g/cm
3), and the specific strength of A3 steel is merely 59MPa/ (g/cm
3) about.Have the excellent comprehensive performance just because of the carbon fiber composite reinforcing material, it is widely used in space flight, fields such as sports apparatus and chemical industry, the focus that becomes field of new research and use.
In consumer electronics case material field, the application of carbon fibre material starting is later relatively, and carbon current fiber consumption electronic product housing is in the research and development starting stage, and Related product technology is also in the research and development stage of fumbling.Carbon fiber consumption electronic product housing is the whole carbon fibre material that adopts mostly, and the product shell that also has adopts the hot-forming back of carbon fiber that back side snapped-in position is carried out injection moulding processing, reduces difficulty and cycle that carbon fiber is directly processed.
But above-mentioned various forming method all need carry out a series of turning processing and polishing repeatedly, the processing of spraying paint, and operation is loaded down with trivial details; Yield is lower, and the product processing link carries out repeatedly, and is consuming time longer; These have all increased the cost of product virtually; For this reason, be necessary carbon fibre material processing and post processing are improved and perfect, make it to better meet the consumer electronics field material requirements.
Summary of the invention:
The object of the invention is exactly to the deficiency that exists in the existing processing technology a kind of carbon fiber housing processing technology to be provided.
To achieve these goals, the technical scheme of the present invention's employing: comprise the steps:
1), carbon fiber plate processing: after carbon fiber prepreg cut into the certain size size, the stone layer 2-4;
2), imitative carbon fiber plate processing: sheet material texture back up printing ink cuts;
3), carbon fiber plate and imitative carbon fiber plate are fitted: according to product requirement, ready carbon fiber plate and imitative carbon fiber plate hot pressing are fitted;
4), injection mo(u)lding: above-mentioned two kinds of materials become one after fitting through hot pressing, put injection moulding in the molding mold cavity into.
Further, carbon fiber prepreg can be used with for a kind of prepreg or two or more type prepregs in the said step 1), and the number of plies is a layer 2-4.
Further, said step 2) imitative carbon fiber plate can be thin-film materials such as PC, PET in, and the one side of thin-film material is printed on imitative carbon fiber lines, and another side is printed on black ink.
Further; The mode that carbon fiber and imitative carbon fiber plate hot pressing are fitted in the said step 3) is: imitative carbon fiber plate lines back up printing ink; Carbon fiber prepreg and imitative carbon fiber plate are through cutting to appropriate size; Direct heat is molded, and hot pressing temperature is 80-120 ℃, and the time is 8-25min.
Further; The mode that carbon fiber and imitative carbon fiber plate hot pressing are fitted in the said step 3) is: carbon fiber prepreg is earlier hot-forming; Hot pressing temperature is 80-120 ℃, and the time is 8-25min, imitative carbon fiber plate lines back up printing ink and adhesive; Forming temperature is 80-100 ℃, time 20-50s; With above-mentioned two kinds of material hot pressing after hot-forming, make it to fit tightly, hot pressing temperature is 80-110 ℃, the time is 20-100s.
Further, after carbon fiber and imitative carbon fiber plate hot pressing are fitted in the said step 3), printing on the carbon fiber plate that needs the injection moulding zone, spraying or brushing one deck adhesive.
Further, the injection moulding mode was after carbon fiber plate and imitative carbon fiber plate were fitted through hot pressing in the said step 4): injection moulding periphery one circle of the sheet material after hot pressing is fitted forms product bound edge and buckle structure.
Further, the injection moulding mode was after carbon fiber plate and imitative carbon fiber plate were fitted through hot pressing in the said step 4): the sheet material integral molded plastic after hot pressing is fitted forms product bound edge and buckle structure.
The invention has the beneficial effects as follows: the present invention through carbon fiber prepreg and plastic sheet are cut with preliminary treatment after; Fit together through different modes hot pressing, form shape of product, put into mold cavity then; Carry out injection mo(u)lding, form product bound edge and buckle structure.Final product structure is outer, and the intermediate layer is a carbon fiber layer in order to imitate carbon fiber plate, and the back side is buckle structure; Product after injection moulding is accomplished is final products, has save back processed operation, can reduce the product surface treatment process to a great extent; Reduce labour intensity, shorten life cycle of the product, and this technological operation is simple; Can obviously improve the production yield, reduce production costs, have good production and economic benefit.
The specific embodiment:
For more detailed explanation summary of the invention of the present invention, further specify below in conjunction with specific embodiment.
The carbon fiber hot press forming technology may further comprise the steps successively in the present embodiment:
1, carbon fiber prepreg processing: after carbon fiber prepreg cuts into the certain size size, the stone layer 2-4.
2, imitative carbon fiber plate processing: sheet material texture back up printing ink cuts.
3, carbon fiber and imitative carbon fiber plate are fitted: according to product requirement, ready carbon fiber and imitative carbon fiber plate hot pressing are fitted.
4, injection mo(u)lding: above-mentioned two kinds of materials become one after fitting through hot pressing, put in the mold cavity injection moulding into.
Carbon fiber prepreg described in the step 1 can be used with for a kind of prepreg or two or more type prepregs, and the number of plies is a layer 2-4.
Imitative carbon fiber plate can be thin-film materials such as PC, PET in the step 2, and the one side of thin-film material is printed on imitative carbon fiber lines, and another side is printed on black ink.
Carbon fiber and imitative carbon fiber plate are fitted and are comprised two kinds of implementations in the step 3:
1), imitative carbon fiber plate lines back up printing ink, carbon fiber prepreg and imitative carbon fiber plate are through cutting to appropriate size, direct heat is molded, hot pressing temperature is 100 ℃, time 10min.
2), carbon fiber prepreg is earlier hot-forming, hot pressing temperature is 100 ℃, time 10min; Imitative carbon fiber plate lines back up printing ink and adhesive, 90 ℃ of temperature, time 30s condition compacted under; With two kinds of material hot pressing after the above-mentioned moulding; Make it to fit tightly, hot pressing temperature is 90 ℃, time 60s.
After carbon fiber and imitative carbon fiber plate hot pressing are fitted in the step 3, on the carbon fibre material that needs the injection moulding zone, print spraying or brushing one deck adhesive.
Shooting Technique comprised two kinds of implementations after carbon fiber and imitative carbon fiber plate hot pressing were fitted in the step 4:
One of Shooting Technique forms product bound edge and buckle structure for material injection moulding periphery one circle of hot pressing after fitting;
Two of Shooting Technique is the material monolithic injection moulding after the hot pressing applying, formation product bound edge and buckle structure.Certainly, the above only is preferred embodiment of the present invention, so all equivalences of doing according to the described structure of patent claim of the present invention, characteristic and principle change or modify, includes in patent claim of the present invention.
Claims (8)
1. carbon fiber housing processing technology is characterized in that: may further comprise the steps:
1), carbon fiber plate processing: after carbon fiber prepreg cut into the certain size size, the stone layer 2-4;
2), imitative carbon fiber plate processing: sheet material texture back up printing ink cuts;
3), carbon fiber plate and imitative carbon fiber plate are fitted: according to product requirement, ready carbon fiber plate and imitative carbon fiber plate hot pressing are fitted;
4), injection mo(u)lding: above-mentioned two kinds of materials become one after fitting through hot pressing, put injection moulding in the molding mold cavity into.
2. carbon fiber housing processing technology according to claim 1 is characterized in that: carbon fiber prepreg is at least one type of prepreg in the said step 1), and the number of plies is a layer 2-4.
3. carbon fiber housing processing technology according to claim 1 is characterized in that: imitative carbon fiber plate can be thin-film materials such as PC, PET said step 2), and the one side of thin-film material is printed on imitative carbon fiber lines, and another side is printed on black ink.
4. carbon fiber housing processing technology according to claim 1; It is characterized in that: the mode that carbon fiber and imitative carbon fiber plate hot pressing are fitted in the said step 3) is: imitative carbon fiber plate lines back up printing ink; Carbon fiber prepreg and imitative carbon fiber plate are through cutting to appropriate size; Direct heat is molded, and hot pressing temperature is 80-120 ℃, and the time is 8-25min.
5. carbon fiber housing processing technology according to claim 1; It is characterized in that: the mode that carbon fiber and imitative carbon fiber plate hot pressing are fitted in the said step 3) is: carbon fiber prepreg is earlier hot-forming; Hot pressing temperature is 80-120 ℃, and the time is 8-25min, imitative carbon fiber plate lines back up printing ink and adhesive; Forming temperature is 80-100 ℃, time 20-50s; With above-mentioned two kinds of material hot pressing after hot-forming, make it to fit tightly, hot pressing temperature is 80-110 ℃, the time is 20-100s.
6. carbon fiber housing processing technology according to claim 1 is characterized in that: after carbon fiber and imitative carbon fiber plate hot pressing are fitted in the said step 3), and printing on the carbon fiber plate that needs the injection moulding zone, spraying or brushing one deck adhesive.
7. carbon fiber housing processing technology according to claim 1; It is characterized in that: the injection moulding mode was after carbon fiber plate and imitative carbon fiber plate were fitted through hot pressing in the said step 4): injection moulding periphery one circle of the sheet material after hot pressing is fitted forms product bound edge and buckle structure.
8. carbon fiber housing processing technology according to claim 1; It is characterized in that: the injection moulding mode was after carbon fiber plate and imitative carbon fiber plate were fitted through hot pressing in the said step 4): the sheet material integral molded plastic after hot pressing is fitted forms product bound edge and buckle structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100891238A CN102626974A (en) | 2012-03-29 | 2012-03-29 | Carbon fiber shell processing technique |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100891238A CN102626974A (en) | 2012-03-29 | 2012-03-29 | Carbon fiber shell processing technique |
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| CN102626974A true CN102626974A (en) | 2012-08-08 |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103802269A (en) * | 2012-11-14 | 2014-05-21 | 汉达精密电子(昆山)有限公司 | Injection molding method of carbon plate composite material and product thereof |
| CN103802323A (en) * | 2012-11-07 | 2014-05-21 | 联想(北京)有限公司 | Method used for preparing keyboard, and keyboard |
| CN106028729A (en) * | 2016-07-07 | 2016-10-12 | 东莞劲胜精密组件股份有限公司 | Electronic device's waterproof and drop-proof shell and its preparation method |
| WO2018112893A1 (en) * | 2016-12-23 | 2018-06-28 | Covestro Deutschland Ag | A process for producing a molded article and the molded article produced thereby |
| CN111196484A (en) * | 2020-02-06 | 2020-05-26 | 大连理工大学 | Method and device for machining and positioning large-caliber carbon fiber composite material paraboloid thin-walled part |
| CN113547694A (en) * | 2021-06-15 | 2021-10-26 | 江苏新泉模具有限公司 | In-mold decoration process for automobile interior trim part product reverse packaging |
| CN114290790A (en) * | 2021-11-24 | 2022-04-08 | 歌尔光学科技有限公司 | Preparation method of shell structure |
| CN114554761A (en) * | 2022-02-28 | 2022-05-27 | 维沃移动通信有限公司 | Preparation method of shell, shell and electronic equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103802323A (en) * | 2012-11-07 | 2014-05-21 | 联想(北京)有限公司 | Method used for preparing keyboard, and keyboard |
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| CN111196484A (en) * | 2020-02-06 | 2020-05-26 | 大连理工大学 | Method and device for machining and positioning large-caliber carbon fiber composite material paraboloid thin-walled part |
| CN113547694A (en) * | 2021-06-15 | 2021-10-26 | 江苏新泉模具有限公司 | In-mold decoration process for automobile interior trim part product reverse packaging |
| CN113547694B (en) * | 2021-06-15 | 2023-09-08 | 江苏新泉模具有限公司 | In-mold decoration process for inverted packaging of automobile interior trim product |
| CN114290790A (en) * | 2021-11-24 | 2022-04-08 | 歌尔光学科技有限公司 | Preparation method of shell structure |
| CN114554761A (en) * | 2022-02-28 | 2022-05-27 | 维沃移动通信有限公司 | Preparation method of shell, shell and electronic equipment |
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Application publication date: 20120808 |