CN112848362A - Production process of coating-free carbon fiber plate - Google Patents
Production process of coating-free carbon fiber plate Download PDFInfo
- Publication number
- CN112848362A CN112848362A CN202011641228.0A CN202011641228A CN112848362A CN 112848362 A CN112848362 A CN 112848362A CN 202011641228 A CN202011641228 A CN 202011641228A CN 112848362 A CN112848362 A CN 112848362A
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- product
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- coating
- carbon fiber
- core material
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- Pending
Links
- 229920000049 Carbon (fiber) Polymers 0.000 title claims abstract description 43
- 239000004917 carbon fiber Substances 0.000 title claims abstract description 43
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 43
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 25
- 239000011162 core material Substances 0.000 claims abstract description 34
- 238000005498 polishing Methods 0.000 claims abstract description 34
- 239000004744 fabric Substances 0.000 claims abstract description 33
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 28
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 28
- 238000000576 coating method Methods 0.000 claims abstract description 21
- 239000011347 resin Substances 0.000 claims abstract description 20
- 229920005989 resin Polymers 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims abstract description 19
- 239000011248 coating agent Substances 0.000 claims abstract description 17
- 238000005507 spraying Methods 0.000 claims abstract description 11
- 238000000465 moulding Methods 0.000 claims abstract description 8
- 238000000227 grinding Methods 0.000 claims abstract description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 15
- 238000005187 foaming Methods 0.000 claims description 15
- 239000003292 glue Substances 0.000 claims description 12
- 238000009966 trimming Methods 0.000 claims description 11
- 238000009837 dry grinding Methods 0.000 claims description 7
- 239000000428 dust Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 244000137852 Petrea volubilis Species 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 3
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 3
- 229920000742 Cotton Polymers 0.000 claims description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 244000269722 Thea sinensis Species 0.000 claims description 3
- 239000011425 bamboo Substances 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 238000007788 roughening Methods 0.000 claims description 3
- 238000002791 soaking Methods 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 210000002268 wool Anatomy 0.000 claims description 3
- 244000082204 Phyllostachys viridis Species 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 claims 1
- 239000003973 paint Substances 0.000 abstract description 12
- 238000011282 treatment Methods 0.000 abstract description 7
- 239000000126 substance Substances 0.000 abstract description 6
- 208000028571 Occupational disease Diseases 0.000 abstract description 5
- 239000002131 composite material Substances 0.000 abstract description 5
- 238000005488 sandblasting Methods 0.000 abstract description 5
- 239000002904 solvent Substances 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 241001330002 Bambuseae Species 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000007630 basic procedure Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000037228 dieting effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002759 woven fabric Substances 0.000 description 1
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
- B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
The invention provides a production process of a coating-free carbon fiber plate, and relates to the technical field of composite material processing. The production process sequentially comprises the following steps: s1, molding a core material; s2, coating carbon cloth; s3, resin molding; and S4, grinding and polishing. In the embodiment of the invention, the production process of the coating-free carbon fiber plate is adopted, so that the processes of polishing, sand blasting, paint spraying and gloss oil/matte treatment are saved, the company cost can be greatly reduced in time, product cost and labor cost, the management and control of paint and various chemical solvents are omitted in management, the company management cost can be slightly optimized, and the risk of environmental harm and staff occupational diseases and dangers is greatly reduced.
Description
Technical Field
The invention relates to the technical field of composite material processing, in particular to a production process of a coating-free carbon fiber plate.
Background
Painting is an important step in modern product manufacturing processes. The quality of antirust and anticorrosive coatings is one of the important aspects of the overall quality of products. The appearance quality of the product not only reflects the protection and decoration performance of the product, but also is an important factor forming the value of the product.
The coating is a system engineering, which comprises three basic procedures of treatment, coating process and drying of the surface of a coated object before coating, a reasonably designed coating system, selection of a proper coating, determination of good operating environment conditions, important links of quality, process management, technical economy and the like.
However, the surface coating process of the composite material is complex, the coating cost and the labor cost are high, the management and transportation process of the paint, the Tianna water and other chemicals is difficult, the danger coefficient is high, and the dust and the paint are extremely easy to cause harm to human bodies and the harm to the environment is not negligible in the coating process.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a production process of a coating-free carbon fiber plate, and solves the problems of high coating cost and great harm of a composite material.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme:
a production process of a coating-free carbon fiber plate comprises the following steps in sequence:
s1, core material molding:
heating the foaming mold to 45 ℃, and uniformly coating an oily release agent on the surfaces of an upper mold and a lower mold of the foaming mold; injecting the polyurethane foaming A, B material into a container at the same time in a mass ratio of 1:1, uniformly stirring, and pouring into a foaming mold cavity; closing the upper die and the lower die of the foaming die, clamping 3KN by using a quick clamp, keeping for fifteen minutes, then loosening the clamp, opening the die and taking out the core material;
s2, coating carbon cloth:
removing burrs on the edge of the core material joint line by using sand paper and roughening the surface of the whole core material; cleaning dust on the surface of the core material by using an air gun, and uniformly spraying glue on the surface of the core material by using spray glue to form a glue film; then, flatly paving the carbon cloth on the surface of the core material, and trimming redundant yarn materials according to the edge contour of the core material; the steps of spraying glue, laying carbon cloth and trimming are repeated on the outer surface of the inner layer carbon cloth until the surface of the core material is coated with the specified number of layers of carbon cloth to form a prefabricated body;
s3, resin molding:
preheating a product mold to 45-60 ℃, and uniformly coating a release agent; uniformly pouring part of resin into a product mold cavity to ensure that the resin is uniformly stored at the bottom of the mold, then putting the prefabricated body into the product mold, uniformly pouring the rest resin on the prefabricated body, pushing the resin by using smooth bamboo chips, and uniformly soaking the carbon cloth; closing the die for 4-6 minutes, enabling the resin to tend to be solidified and not to flow, uniformly and forcibly clamping 4-5.5 KN at four corners of a product die by using a G-shaped clamp, keeping for 30-45 minutes, opening the G-shaped clamp, opening the die and taking out the product;
s4, grinding and polishing:
trimming the upper edge yarn clamping of the product mold closing line; lightly polishing burrs on the joint line and the die line by using dry-grinding abrasive paper; smearing polishing wax on a polishing part, installing a wool wheel on a polishing machine for medium-speed polishing, wiping dust and residual polishing wax on the surface of a product by using dust-free cloth dipped with water, smearing a mirror agent on the product, installing a sponge wheel on the polishing machine, and polishing the whole product once at a low speed; then checking, packaging and warehousing.
Preferably, in S2, 180# sandpaper is used as the sandpaper for grinding the core material.
Preferably, in S2, the carbon cloth is laid flat on the core material, the edge line is covered downward from the plane to the edge, the carbon cloth is overlapped by 1 cm with the inner layer, the four corners of the edge line are opened with scissors, and the edge is laid flat.
Preferably, in S2, 240g of shaped carbon fiber woven fabric is used as the outermost carbon cloth, so as to ensure an attractive appearance.
Preferably, in S3, the product mold is made of mirror steel, and the surface of the product mold is mirror-polished; the release agent is a mirror release agent and is smeared on the surface of a product mould through absorbent cotton.
Preferably, in S3, the upper mold is kept horizontally closed during mold closing.
Preferably, in S3, in the process of opening the mold, the mold opening rod takes out the movable block around the product mold by using the position of the mold-tilting angle reserved on the product mold, and takes out the product by using the movable block.
Preferably, in S4, the dry grinding sand paper is 1000# dry grinding sand paper.
The coating-free carbon fiber product is formed by assembling coating-free carbon fiber plates, and the coating-free carbon fiber plates are prepared by the production process.
Preferably, the coating-free carbon fiber product comprises: the painting-free carbon fiber desk, the painting-free carbon fiber tea table, the painting-free carbon fiber learning desk and the painting-free carbon fiber piano desk.
(III) advantageous effects
The invention provides a production process of a coating-free carbon fiber plate. Compared with the prior art, the method has the following beneficial effects:
in the embodiment of the invention, the production process of the coating-free carbon fiber plate is adopted, so that the processes of polishing, sand blasting, paint spraying and gloss oil/matte treatment are saved, the company cost can be greatly reduced in time, product cost and labor cost, the management and control of paint and various chemical solvents are omitted in management, the company management cost can be slightly optimized, and the risk of environmental harm and staff occupational diseases and dangers is greatly reduced.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are a part of the embodiments of the present invention, but not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the application solves the problems of high coating cost and large harm of composite materials by providing a production process of coating-free carbon fiber plates.
In order to solve the technical problems, the general idea of the embodiment of the application is as follows:
in the embodiment of the invention, the production process of the coating-free carbon fiber plate is adopted, so that the processes of polishing, sand blasting, paint spraying and gloss oil/matte treatment are saved, the company cost can be greatly reduced in time, product cost and labor cost, the management and control of paint and various chemical solvents are omitted in management, the company management cost can be slightly optimized, and the risk of environmental harm and staff occupational diseases and dangers is greatly reduced.
In order to better understand the above technical solutions, the following detailed descriptions will be provided with reference to specific embodiments.
Example (b):
the invention provides a production process of a coating-free carbon fiber plate, which sequentially comprises the following steps:
s1, core material molding:
heating the foaming mold to 45 ℃, and uniformly coating an oily release agent on the surfaces of an upper mold and a lower mold of the foaming mold; injecting the polyurethane foaming A, B material into a container at the same time in a mass ratio of 1:1, uniformly stirring, and pouring into a foaming mold cavity; closing the upper die and the lower die of the foaming die, clamping 3KN by using a quick clamp, keeping for fifteen minutes, then loosening the clamp, opening the die and taking out the core material;
s2, coating carbon cloth:
removing burrs on the edge of the core material joint line by using sand paper and roughening the surface of the whole core material; cleaning dust on the surface of the core material by using an air gun, and uniformly spraying glue on the surface of the core material by using spray glue to form a glue film; then, flatly paving the carbon cloth on the surface of the core material, and trimming redundant yarn materials according to the edge contour of the core material; the steps of spraying glue, laying carbon cloth and trimming are repeated on the outer surface of the inner layer carbon cloth until the surface of the core material is coated with the specified number of layers of carbon cloth to form a prefabricated body;
s3, resin molding:
preheating a product mold to 45-60 ℃, and uniformly coating a release agent; uniformly pouring part of resin into a product mold cavity to ensure that the resin is uniformly stored at the bottom of the mold, then putting the prefabricated body into the product mold, uniformly pouring the rest resin on the prefabricated body, pushing the resin by using smooth bamboo chips, and uniformly soaking the carbon cloth; closing the die for 4-6 minutes, enabling the resin to tend to be solidified and not to flow, uniformly and forcibly clamping 4-5.5 KN at four corners of a product die by using a G-shaped clamp, keeping for 30-45 minutes, opening the G-shaped clamp, opening the die and taking out the product;
s4, grinding and polishing:
trimming the upper edge yarn clamping of the product mold closing line; lightly polishing burrs on the joint line and the die line by using dry-grinding abrasive paper; smearing polishing wax on a polishing part, installing a wool wheel on a polishing machine for medium-speed polishing, wiping dust and residual polishing wax on the surface of a product by using dust-free cloth dipped with water, smearing a mirror agent on the product, installing a sponge wheel on the polishing machine, and polishing the whole product once at a low speed; then checking, packaging and warehousing.
The production process of the coating-free carbon fiber plate saves polishing, sand blasting, paint spraying and gloss oil/matte treatment processes, can greatly reduce company cost in time, product cost and labor cost, saves management and control of paint and various chemical solvents in management, optimizes company management cost in a small range, and greatly reduces harm to the environment and occupational disease risk of staff.
In S2, 180# sandpaper was used as the sandpaper for grinding the core material.
In S2, the carbon cloth is flatly laid on the core material, the position from the plane to the edge ridge line of the edge is covered downwards, the carbon cloth is overlapped by 1 cm with the inner layer, the four corners of the ridge line are opened by scissors, and the edge is flatly laid.
In S2, 240g of shaped carbon fiber woven cloth is adopted as the outermost carbon cloth, so that the appearance and the lines are attractive.
S3, the product mold is made of mirror steel, and the surface of the product mold is subjected to mirror polishing treatment; the release agent is a mirror release agent and is smeared on the surface of a product mould through absorbent cotton.
And S3, keeping the upper die to be horizontally closed when closing the die, and preventing the upper die from inclining, so as to avoid uneven resin flow caused by uneven stress on the product die.
And S3, in the process of opening the mold, the mold opening rod takes out the movable blocks around the product mold by using the reserved mold tilting angle positions on the product mold, and takes out the product by using the movable blocks.
And S4, in the process of trimming the upper edge yarn clamping of the product mold closing line, fixing the product on a CNC engraving machine, and calling a programmed program to realize trimming.
In S4, the dry grinding abrasive paper is No. 1000 dry grinding abrasive paper.
The coating-free carbon fiber product is formed by assembling coating-free carbon fiber plates, and the coating-free carbon fiber plates are prepared by the production process.
The coating-free carbon fiber product comprises: the painting-free carbon fiber desk, the painting-free carbon fiber tea table, the painting-free carbon fiber learning desk and the painting-free carbon fiber piano desk.
In summary, compared with the prior art, the invention has the following beneficial effects:
in the embodiment of the invention, the production process of the coating-free carbon fiber plate is adopted, so that the processes of polishing, sand blasting, paint spraying and gloss oil/matte treatment are saved, the company cost can be greatly reduced in time, product cost and labor cost, the management and control of paint and various chemical solvents are omitted in management, the company management cost can be slightly optimized, and the risk of environmental harm and staff occupational diseases and dangers is greatly reduced.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. The production process of the coating-free carbon fiber plate is characterized by sequentially comprising the following steps of:
s1, core material molding:
heating the foaming mold to 45 ℃, and uniformly coating an oily release agent on the surfaces of an upper mold and a lower mold of the foaming mold; injecting the polyurethane foaming A, B material into a container at the same time in a mass ratio of 1:1, uniformly stirring, and pouring into a foaming mold cavity; closing the upper die and the lower die of the foaming die, clamping 3KN by using a quick clamp, keeping for fifteen minutes, then loosening the clamp, opening the die and taking out the core material;
s2, coating carbon cloth:
removing burrs on the edge of the core material joint line by using sand paper and roughening the surface of the whole core material; cleaning dust on the surface of the core material by using an air gun, and uniformly spraying glue on the surface of the core material by using spray glue to form a glue film; then, flatly paving the carbon cloth on the surface of the core material, and trimming redundant yarn materials according to the edge contour of the core material; the steps of spraying glue, laying carbon cloth and trimming are repeated on the outer surface of the inner layer carbon cloth until the surface of the core material is coated with the specified number of layers of carbon cloth to form a prefabricated body;
s3, resin molding:
preheating a product mold to 45-60 ℃, and uniformly coating a release agent; uniformly pouring part of resin into a product mold cavity to ensure that the resin is uniformly stored at the bottom of the mold, then putting the prefabricated body into the product mold, uniformly pouring the rest resin on the prefabricated body, pushing the resin by using smooth bamboo chips, and uniformly soaking the carbon cloth; closing the die for 4-6 minutes, enabling the resin to tend to be solidified and not to flow, uniformly and forcibly clamping 4-5.5 KN at four corners of a product die by using a G-shaped clamp, keeping for 30-45 minutes, opening the G-shaped clamp, opening the die and taking out the product;
s4, grinding and polishing:
trimming the upper edge yarn clamping of the product mold closing line; lightly polishing burrs on the joint line and the die line by using dry-grinding abrasive paper; smearing polishing wax on a polishing part, installing a wool wheel on a polishing machine for medium-speed polishing, wiping dust and residual polishing wax on the surface of a product by using dust-free cloth dipped with water, smearing a mirror agent on the product, installing a sponge wheel on the polishing machine, and polishing the whole product once at a low speed; then checking, packaging and warehousing.
2. The process according to claim 1, wherein in S2, the core material is ground with 180# sandpaper.
3. The production process according to claim 1, wherein in S2, the carbon cloth is laid flat on the core material, the ridge line is coated downward from the plane to the edge, the ridge line is overlapped with the carbon cloth of the inner layer by 1 cm, the four corners of the ridge line are opened by scissors, and the edge is laid flat.
4. The production process according to claim 1, wherein in S2, 240g of shaped carbon fiber woven cloth is used as the outermost carbon cloth to ensure an attractive appearance.
5. The production process according to claim 1, wherein in S3, the product mold is made of mirror steel, and the surface of the product mold is mirror-finished; the release agent is a mirror release agent and is smeared on the surface of a product mould through absorbent cotton.
6. The process of claim 1, wherein in S3, the upper mold is kept horizontally closed during closing.
7. The manufacturing process of claim 1, wherein in the step S3, during the step of opening the mold, the mold opening rod takes out the peripheral movable block of the product mold by using the position of the pre-tilted mold angle on the product mold, and takes out the product by using the movable block.
8. The manufacturing process of claim 1, wherein in S4, the dry-abrasive paper is # 1000 dry-abrasive paper.
9. A coating-free carbon fiber product is characterized by being assembled by coating-free carbon fiber plates, wherein the coating-free carbon fiber plates are prepared by the production process according to any one of claims 1 to 8.
10. The coating-free carbon fiber article of claim 9, wherein the coating-free carbon fiber article comprises: the painting-free carbon fiber desk, the painting-free carbon fiber tea table, the painting-free carbon fiber learning desk and the painting-free carbon fiber piano desk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011641228.0A CN112848362A (en) | 2020-12-31 | 2020-12-31 | Production process of coating-free carbon fiber plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011641228.0A CN112848362A (en) | 2020-12-31 | 2020-12-31 | Production process of coating-free carbon fiber plate |
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| Publication Number | Publication Date |
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| CN112848362A true CN112848362A (en) | 2021-05-28 |
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| CN202011641228.0A Pending CN112848362A (en) | 2020-12-31 | 2020-12-31 | Production process of coating-free carbon fiber plate |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002193047A (en) * | 2000-12-28 | 2002-07-10 | Honda Motor Co Ltd | Car body component and method of manufacturing it |
| CN203795623U (en) * | 2014-02-13 | 2014-08-27 | 北京市建筑工程研究院有限责任公司 | Heat-insulated ultralow-density rigid polyurethane foam board for buildings |
| CN105729825A (en) * | 2016-03-21 | 2016-07-06 | 温州市瓯海凯士箱包厂 | Production technology for carbon fiber products |
| CN106881880A (en) * | 2017-04-10 | 2017-06-23 | 宜兴威尔敦贸易有限公司 | A kind of vehicle steering moulding and its batch cover the manufacture craft of carbon fiber |
| US20190061289A1 (en) * | 2017-08-25 | 2019-02-28 | Citic Dicastal Co., Ltd. | Method for surface treatment of composite material part and treated part |
| CN110001089A (en) * | 2019-04-15 | 2019-07-12 | 营口市飞龙碳纤维电动车有限公司 | Motorcycle integrated vehicle body and preparation method thereof |
-
2020
- 2020-12-31 CN CN202011641228.0A patent/CN112848362A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002193047A (en) * | 2000-12-28 | 2002-07-10 | Honda Motor Co Ltd | Car body component and method of manufacturing it |
| CN203795623U (en) * | 2014-02-13 | 2014-08-27 | 北京市建筑工程研究院有限责任公司 | Heat-insulated ultralow-density rigid polyurethane foam board for buildings |
| CN105729825A (en) * | 2016-03-21 | 2016-07-06 | 温州市瓯海凯士箱包厂 | Production technology for carbon fiber products |
| CN106881880A (en) * | 2017-04-10 | 2017-06-23 | 宜兴威尔敦贸易有限公司 | A kind of vehicle steering moulding and its batch cover the manufacture craft of carbon fiber |
| US20190061289A1 (en) * | 2017-08-25 | 2019-02-28 | Citic Dicastal Co., Ltd. | Method for surface treatment of composite material part and treated part |
| CN110001089A (en) * | 2019-04-15 | 2019-07-12 | 营口市飞龙碳纤维电动车有限公司 | Motorcycle integrated vehicle body and preparation method thereof |
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Application publication date: 20210528 |
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