WO2013117965A1 - 碳纤维管子制造方法及以此制造而成的碳纤维管子 - Google Patents

碳纤维管子制造方法及以此制造而成的碳纤维管子 Download PDF

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Publication number
WO2013117965A1
WO2013117965A1 PCT/IB2012/050597 IB2012050597W WO2013117965A1 WO 2013117965 A1 WO2013117965 A1 WO 2013117965A1 IB 2012050597 W IB2012050597 W IB 2012050597W WO 2013117965 A1 WO2013117965 A1 WO 2013117965A1
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Prior art keywords
carbon fiber
mandrel
epoxy resin
fiber tube
fiber pipe
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PCT/IB2012/050597
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English (en)
French (fr)
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李强华
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Li Qianghua
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Priority to PCT/IB2012/050597 priority Critical patent/WO2013117965A1/zh
Publication of WO2013117965A1 publication Critical patent/WO2013117965A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D23/00—Producing tubular articles
    • B29D23/001—Pipes; Pipe joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
    • B29C70/32—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core on a rotating mould, former or core
    • 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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/56—Winding and joining, e.g. winding spirally
    • B29C53/566—Winding and joining, e.g. winding spirally for making tubular articles followed by compression

Definitions

  • the present invention relates to a method for producing a carbon fiber tube and a carbon fiber tube manufactured thereby, and more particularly to a method for producing a tube composed of a resin and carbon fibers and an elastic fiber tube manufactured thereby.
  • the Filament Winding Process is a method of winding a continuous fiber fabric in an impregnating resin around a suitable mold or mandrel.
  • Figure 1 is a structural view of a fiber tube manufacturing apparatus using a general filament winding process.
  • the fiber 1 is coated with a resin and wound around a mold or a mandrel 2 while being passed through the resin-impregnated tank 3 in a liquid state.
  • the mandrel 2 is rotated.
  • mandrel 2 or mold is heated and partially cured.
  • the cast portion is cured in a drying oven.
  • a reinforcing tape which is impregnated with a resin and partially cured is used for filament winding. These are generally used in the production of asymmetric products that cannot be easily automated.
  • filament winding provides excellent strength relative to weight.
  • the high strength properties relative to weight are due to the continuous use of fibers, providing a high level of strengthening-resin for most filament wound products.
  • the above prior art process involves winding and impregnating resin-impregnated glass fibers or carbon fibers on the surface of a metal pipe, and therefore, although strength and durability are good, weight cannot be reduced.
  • An object of the present invention is to provide a carbon fiber tube manufacturing method in which a carbon fiber impregnated with an epoxy resin is laminated on a mandrel and cured, and a carbon fiber tube manufactured thereby.
  • a method for manufacturing a carbon fiber tube includes the steps of: first, immersing a carbon fiber sheet woven from carbon fibers in an epoxy resin to form a prepreg; and second, the prepreg The blank is cut into a certain size and laminated to form a lamination; in the third step, the lamination is wound on a mandrel of a round bar shape; in the fourth step, the mandrel wound with the disc is placed on the mold and punched from the die a state in which the upper side is pressurized, the mold is reciprocated left and right, so that the laminated piece is pressed against the mandrel with a certain thickness; and in the fifth step, the pressed laminated piece is dried to cure the epoxy resin; In the sixth step, the mandrel is removed from the dried laminate.
  • the step of heating the prepreg to a temperature to maintain the viscosity of the epoxy resin is further included.
  • the laminate is wound.
  • a curing agent was added to the epoxy resin, and the ratio of the epoxy resin to the curing agent was 6:4.
  • a carbon fiber tube manufactured by the above-described carbon fiber tube manufacturing method can also be provided.
  • the present invention achieves the object of improving rigidity and durability while reducing weight by removing the metal pipe of the prior art.
  • Figure 1 is a structural view of a fiber tube manufacturing apparatus using a general filament winding process
  • FIG. 2 is a sequence diagram of a method for manufacturing a carbon fiber tube according to a preferred embodiment of the present invention
  • Figure 3 is an illustration of an apparatus for performing the first step of the present invention
  • Figure 4 is a diagram showing an example of the second step of the present invention.
  • Figure 5 is a diagram showing an example of a device for carrying out the fourth step of the present invention.
  • Figure 2 is a sequence diagram showing a method of manufacturing a carbon fiber tube in accordance with a preferred embodiment of the present invention.
  • the present invention can generally comprise six steps, and the first step will be described in detail first with reference to FIG. Figure 3 is an illustration of an apparatus for performing the first step of the present invention.
  • the first step of the present invention is a step of immersing the carbon fiber sheet 10 in an epoxy resin to form a prepreg 20 (Prepreg).
  • the carbon fiber sheet 10 may be a fabric woven from carbon fibers in various manners, and may be woven by the most common plain weave.
  • the carbon fiber sheet 10 is immersed in an epoxy resin to form a prepreg 20.
  • the curing agent may be mixed in the epoxy resin, and the ratio of the epoxy resin to the curing agent may be adjusted, and is preferably about 6:4.
  • Figure 4 is an illustration of a second step of the present invention.
  • the second step is a step of forming a lamination 30 using the prepreg 20 formed in the first step described above.
  • the carbon fiber sheet 10 is woven into a long shape, and as shown in Fig. 4, the prepreg 20 made of such a material is cut into a predetermined length and laminated.
  • the laminate 30 is formed by laminating a plurality of prepregs 20.
  • the prepreg 20 may be heated to a temperature to extend the curing of the epoxy resin adhered to the carbon fiber sheet 10 before the first step is completed and the second step is performed. This is to form a better pasted state when the prepreg 20 is laminated in the second step described above.
  • the heating performed while maintaining the temperature can be accomplished by various methods.
  • the third step is a step of winding the above-described laminations 30 on the mandrel 40.
  • the mandrel 40 described above is a mold (Mold) having a round bar shape to shape a tube shape.
  • the laminations 30 are wound around the mandrel 40 described above. At this time, it can be more than once.
  • a release agent may be applied to the outer circumferential surface of the mandrel 40 before the laminate 30 is wound around the mandrel 40.
  • the above-mentioned release agent functions to facilitate the operation when the mandrel 40 is removed in the sixth step, and a general silicon-based lubricating oil can be used.
  • Figure 5 is a diagram showing an example of a device for carrying out the fourth step of the present invention.
  • the fourth step is to place the mandrel 40 wound around the lamination 30 in the third step on the mold 60, and to press the mandrel to the left and right sides while being pressed from the upper side so as to be wound around The steps of the laminations 30 of the mandrel 40 being pressed against each other.
  • the mold 50 is provided on the upper portion and the mold 60 is reciprocally movable in the lower portion.
  • the mandrel 40 is horizontally provided and the punch 50 is pressurized from the upper side to reciprocate the mold 60.
  • the movement causes the laminated sheet 30 to be pressed against the outer peripheral surface of the mandrel 40, and the plurality of carbon fiber sheets 10 laminated on the inside of the laminated sheet 30 are pressed against each other to increase the density thereof.
  • a tube layer is formed on the outer peripheral surface of the mandrel 40.
  • the fifth step is a step of drying the above-mentioned laminate 30 formed on the above-mentioned mandrel 40 to cure the epoxy resin, which can be completed by heating at a certain temperature for a certain period of time.
  • the drying can be carried out in a drying oven or the like which can control temperature and time.
  • the sixth step is a step of removing the mandrel 40 from the lamination 30 which is dried in the fifth step.
  • the laminate 30 and the mandrel 40 are easier to separate due to the application of the release agent described above. Removal of the mandrel 40 described above can be done manually by a worker or removed using other means.
  • the carbon fiber tube manufactured by the above method has a hollow circular tube shape, and the material thereof is formed by laminating one or more laminations of a prepreg in which an epoxy resin is impregnated on a carbon fiber sheet. of.
  • the cross section thereof is in the form of laminating a plurality of layers of carbon fibers in a cured epoxy resin.
  • Carbon fiber sheet 20 Carbon fiber sheet
  • the present invention can be applied to a carbon fiber tube manufacturing method and a carbon fiber tube manufactured thereby, and particularly to a method for producing a tube composed of a resin and carbon fibers, and an elastic fiber tube manufactured thereby.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Moulding By Coating Moulds (AREA)

Abstract

一种碳纤维管子的制造方法及由此制造而成的弹性纤维管子。碳纤维管子的制造方法包括如下步骤：第一步，将由碳素纤维编织而成的碳纤维薄片（10）浸渍于环氧树脂形成预浸料坯（20）；第二步，将上述预浸料坯（20）切割成一定大小并层叠而形成叠片（30）；第三步，在圆棒形状的心轴（40）上缠绕上述叠片（30）；第四步，将缠绕有上述叠片（30）的上述心轴（40）置于模具（60）上并用冲床（50）从上侧加压的状态下，使上述模具（60）左右往复运动，从而使上述叠片（30）以一定厚度压紧于上述心轴（40）上；第五步，干燥上述压紧的叠片（30）以使环氧树脂固化；及第六步，从上述干燥的叠片（30）去除上述心轴（40）。

Description

碳纤维管子制造方法及以此制造而成的碳纤维管子 Technical Field
本发明涉及碳纤维管子制造方法及以此制造而成的碳纤维管子，尤其涉及一种由树脂和碳纤维构成的管子的制造方法及以此制造而成的弹性纤维管子。
Background Art
在现有技术中，在利用碳纤维制造管子时，在金属管周围通过长丝缠绕工艺缠绕碳纤维制作而成。
长丝缠绕工艺（Filament Winding Process）是将浸渍树脂中的连续的纤维织物缠绕于适当的模具或心轴周围的方法。
最普通的长丝缠绕技术如图1所示。图1为利用一般的长丝缠绕工艺的纤维管子制造装置结构图。
在此工艺中，纤维1在通过液体状态的树脂浸渍槽3的过程中被树脂涂布并缠绕于模具或心轴2。
长丝缠绕管子的情况下，例如在通过沿心轴2的长度方向进行往复运动的机械装置供应纤维的过程中，心轴2进行旋转。
在除管子的其他产品中，利用各种方法确保在纤维的移送系统稳定时使模具进行往复运动。
另外，心轴2或模具被加热并部分固化。
一般而言，在对管子心轴2的内部进行加热的过程中，铸造的部分需在干燥炉进行固化。
另外，为长丝缠绕使用浸渍树脂并部分固化的强化胶带。这些一般用于不能简便进行自动化生产的非对称产品的生产。
一般而言，长丝缠绕提供相对于重量的优秀的强度。相对于重量的高强度特性是因为连续使用纤维，提供大部分长丝缠绕产品所具有的高强化-树脂水平。
上述现有技术的工艺是在金属管子表面缠绕浸渍树脂的玻璃纤维或碳纤维并进行固化，因此，虽然强度和耐久性好，但不能减轻重量。
另外，需用另外的装置缠绕于心轴制造而成，因此，费用高，耗时长。
因此，需要在确保一定的强度和耐久性的同时，重量轻，生产费用及时间效率高的产品。
 Technical Problem
本发明的目的在于提供一种将浸渍环氧树脂的碳纤维层叠于心轴并进行固化的碳纤维管子制造方法及以此制造而成的碳纤维管子。
Technical Solution
根据本发明的一个方面，碳纤维管子的制造方法包括如下步骤：第一步，将由碳素纤维编织而成的碳纤维薄片浸渍于环氧树脂形成预浸料坯；第二步，将上述预浸料坯切割成一定大小并层叠而形成叠片；第三步，在圆棒形状的心轴上缠绕上述叠片；第四步，将缠绕有上述碟片的上述心轴置于模具上并用冲床从上侧加压的状态下，使上述模具左右往复运动，从而使上述叠片以一定厚度压紧于上述心轴上；第五步，干燥上述压紧的叠片以使环氧树脂固化；及第六步，从上述干燥的叠片去除上述心轴。
此时，在上述第一步和第二步之间，还包括将上述预浸料坯加热至一定温度仪维持环氧树脂的粘性的步骤。
另外，在上述第三步，在上述心轴的外周面涂布离型剂之后，缠绕上述叠片。
另外，在上述第一步，在环氧树脂中添加固化剂，而环氧树脂和固化剂的比率为6:4。
另外，还可提供通过上述碳纤维管子制造方法制造而成的碳纤维管子。
 Advantageous Effects
本发明通过去除现有技术的金属管，达到在减轻重量的同时，提高刚性和耐久性的目的。
另外，因制造工艺简单，可进行大量生产，而且，因不需要长丝缠绕装置等复杂的设备，其效率非常高。
 Description of Drawings
图1为利用一般的长丝缠绕工艺的纤维管子制造装置结构图；
图2为本发明一个较佳实施例的碳纤维管子制造方法顺序图；
图3为用于完成本发明的第一步的装置的示例图；
图4为本发明的第二步的示例图；
图5为用于完成本发明的第四步的装置的示例图。
 Mode for Invention
下面，结合附图对本发明一个较佳实施例进行详细说明。下面的说明及附图的目的是帮助理解本发明，而非限制本发明的技术范围。另外，对有可能给本发明的重点带来混淆的已公开结构及功能，在此不再赘述。
图2为本发明一个较佳实施例的碳纤维管子制造方法顺序图。
本发明大致可包括六个步骤，而首先将结合图3对第一步进行详细说明。图3为用于完成本发明的第一步的装置的示例图。
本发明的第一步为将碳纤维薄片10浸渍于环氧树脂形成预浸料坯20（Prepreg）的步骤。
碳纤维薄片10可为以各种方式由碳纤维编织（Weaving）而成的织物，可由最普通的平织方式编织而成。
另外，将上述碳纤维薄片10浸渍于环氧树脂形成预浸料坯20。在环氧树脂中可混合固化剂，环氧树脂和固化剂的比率可调，而较佳为6:4左右。
下面，一并结合图4对第二步进行详细说明。图4为本发明的第二步的示例图。
第二步为利用上述第一步形成的预浸料坯20形成叠片（Lamination）30的步骤。
一般而言，上述碳纤维薄片10编织成较长的形状，而如图4所示，由这样的材料制作而成的预浸料坯20，将切割成一定长度并层叠多张。将层叠多张预浸料坯20而成的便是叠片30。
可供参考的是，在结束上述第一步，而进行第二步之前，可将上述预浸料坯20加热至一定温度以延长粘贴于碳纤维薄片10的环氧树脂的固化。这是为了在上述第二步层叠预浸料坯20时，形成更好的粘贴状态。维持温度而进行的加热可通过各种方法完成。
接着，第三步为在心轴40上缠绕上述叠片30的步骤。
上述心轴40为具有圆棒形状以便成型管子形状的模具（Mold）。
因此，缠绕叠片30以围绕上述心轴40。此时，可围绕一次以上。
可供参考的是，在将上述叠片30缠绕于上述心轴40之前，可在上述心轴40的外周面涂布离型剂。上述离型剂的作用是在第六步去除上述心轴40时便于操作，可使用普通硅类的润滑油。
下面，一并结合图5对第四步进行详细说明。图5为用于完成本发明的第四步的装置的示例图。
上述第四步为将在第三步缠绕上述叠片30的上述心轴40置于模具60上，并在从上侧加压的同时，在下侧左右卷绕上述心轴，以使缠绕于上述心轴40的叠片30相互压紧的步骤。
如图5所示，在上部具备冲床50且在下部具备可左右往复移动的模具60的装置上，水平设置上述心轴40并用冲床50从上侧加压的状态下，使上述模具60左右往复运动，则可使上述叠片30压紧于上述心轴40的外周面的同时，使层叠于上述叠片30内部的多个碳纤维薄片10相互压紧，以此提高其密度。
另外，上述叠片被压紧以维持一定厚度的同时，在上述心轴40外周面形成管子层。
接着，第五步为干燥成型于上述心轴40的上述叠片30以固化环氧树脂的步骤，可通过在一定温度下加热一定时间来完成。较佳地，可置于可控制温度和时间的干燥炉等装置中进行干燥。
接着，第六步为从上述第五步干燥而成的上述叠片30去除上述心轴40的步骤。因涂布了上述离型剂，上述叠片30和心轴40较容易分离。去除上述心轴40可工人手动完成，或利用其它的装置去除。
通过上述方法制造而成的碳纤维管子呈中空的圆形管子形状，而其材料是由在碳纤维薄片上浸渍环氧树脂的预浸料坯层叠而成的叠片层叠一层或一层以上而成的。
即，其横截面是在固化的环氧树脂中层叠多层的碳纤维薄片的形式。
上述实施例仅用以说明本发明而非限制，本领域的普通技术人员应当理解，可以对本发明进行修改、变形或者等同替换，而不脱离本发明的精神和范围，其均应涵盖在本发明的权利要求范围当中。
*附图标记*
10：碳纤维薄片 20：预浸料坯
30：叠片 40：心轴
50：冲床 60：模具
 Industrial Applicability
本发明可用于碳纤维管子制造方法及以此制造而成的碳纤维管子，尤其用于由树脂和碳纤维构成的管子的制造方法及以此制造而成的弹性纤维管子。

Claims (5)

  1. 一种碳纤维管子的制造方法包括如下步骤：
    第一步，将由碳素纤维编织而成的碳纤维薄片10浸渍于环氧树脂形成预浸料坯20；
    第二步，将上述预浸料坯20切割成一定大小并层叠而形成叠片30；
    第三步，在圆棒形状的心轴40上缠绕上述叠片30；
    第四步，将缠绕有上述碟片30的上述心轴40置于模具60上并用冲床50从上侧加压的状态下，使上述模具60左右往复运动，从而使上述叠片30以一定厚度压紧于上述心轴40上；
    第五步，干燥上述压紧的叠片30以使环氧树脂固化；及
    第六步，从上述干燥的叠片30去除上述心轴40。
  2. 根据权利要求1所述的碳纤维管子的制造方法，其特征在于：在上述第一步和第二步之间，还包括将上述预浸料坯20加热至一定温度仪维持环氧树脂的粘性的步骤。
  3. 根据权利要求1所述的碳纤维管子的制造方法，其特征在于：在上述第三步，在上述心轴40的外周面涂布离型剂之后，缠绕上述叠片30。
  4. 根据权利要求1至3的任一项所述的碳纤维管子的制造方法，其特征在于：在上述第一步，在环氧树脂中添加固化剂，而环氧树脂和固化剂的比率为6:4。
  5. 一种通过根据权利要求1至3的任一项所述的碳纤维管子的制造方法制造而成的碳纤维管子。
PCT/IB2012/050597 2012-02-10 2012-02-10 碳纤维管子制造方法及以此制造而成的碳纤维管子 WO2013117965A1 (zh)

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CN103770337A (zh) * 2013-09-10 2014-05-07 淄博朗达复合材料有限公司 高强碳纤维管材结构性螺纹的制法
CN106938425A (zh) * 2017-04-27 2017-07-11 东莞市锦明运动器材有限公司 一种碳纤维管的自动化加工设备及其加工方法
CN111688233A (zh) * 2020-06-19 2020-09-22 陈小风 一种连续缠绕玻璃钢管道制造工艺
US10787012B2 (en) * 2017-04-27 2020-09-29 Dongguan Jinming Carbon Fiber Technology Co., Ltd. Automatic processing device including printing device for printing on carbon fiber tube

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Publication number Priority date Publication date Assignee Title
CN103770337A (zh) * 2013-09-10 2014-05-07 淄博朗达复合材料有限公司 高强碳纤维管材结构性螺纹的制法
CN103770337B (zh) * 2013-09-10 2016-03-02 淄博朗达复合材料有限公司 高强碳纤维管材结构性螺纹的制法
CN106938425A (zh) * 2017-04-27 2017-07-11 东莞市锦明运动器材有限公司 一种碳纤维管的自动化加工设备及其加工方法
WO2018196267A1 (zh) * 2017-04-27 2018-11-01 东莞市锦明运动器材有限公司 一种碳纤维管的自动化加工设备及其加工方法
US10787012B2 (en) * 2017-04-27 2020-09-29 Dongguan Jinming Carbon Fiber Technology Co., Ltd. Automatic processing device including printing device for printing on carbon fiber tube
CN106938425B (zh) * 2017-04-27 2023-08-04 东莞市锦明复合材料有限公司 一种碳纤维管的自动化加工设备及其加工方法
CN111688233A (zh) * 2020-06-19 2020-09-22 陈小风 一种连续缠绕玻璃钢管道制造工艺
CN111688233B (zh) * 2020-06-19 2021-12-07 南通市强正复合材料科技有限公司 一种连续缠绕玻璃钢管道制造工艺

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