TWI732619B - Composite material structure and a forming method thereof - Google Patents
Composite material structure and a forming method thereof Download PDFInfo
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本創作係有關一種複合材料結構及其成型方法,尤指一種能讓複合材料結構之內、外兩面皆具有高品質表面,以做為具有特殊需求之產品外殼使用者。 This creation is about a composite material structure and its forming method, especially a kind of composite material structure that can have high-quality surfaces on both the inner and outer sides of the composite material structure, so that it can be used as a product shell user with special needs.
目前在市面上已有利用加溫、加壓方式,將複數個相互重疊之含樹脂碳纖維布硬化,以成型為產品外殼之技術,使具有足夠之強度,並減輕產品之重量與厚度。其中,真空輔助樹脂轉注成型法(Vacuum Assistant Resin Transfer Molding簡稱VARTM)是一種閉模成形技術,主要是在模具之表面上鋪好多層碳纖維或是玻璃纖維乾布,乾布之上方加上一層離型紙,離型紙之上方加上一層導流網布及導流管,再以真空塑膠薄膜沿著模具之四週覆蓋密封,藉以在將真空塑膠薄膜與模具之間的空間抽真空之後,利用真空壓力讓樹脂經由導流網布向下灌注以浸泡乾布,並待樹脂完全含浸玻璃纖維布或是碳纖維布之後關閉流道,最後等待樹脂固化成形。 At present, there are technologies on the market to harden a plurality of overlapping resin-containing carbon fiber cloths by heating and pressing to form a product shell, so that it has sufficient strength and reduces the weight and thickness of the product. Among them, Vacuum Assistant Resin Transfer Molding (Vacuum Assistant Resin Transfer Molding for short VARTM) is a closed-mold forming technology, which is mainly to spread multiple layers of carbon fiber or glass fiber dry cloth on the surface of the mold, and add a layer of release paper on top of the dry cloth. A layer of diversion mesh and diversion tube is added on the top of the release paper, and then covered and sealed with a vacuum plastic film along the periphery of the mold, so that after the space between the vacuum plastic film and the mold is evacuated, the vacuum pressure is used to make the resin Pour down the guide mesh to soak the dry cloth, and close the flow channel after the resin is completely impregnated with glass fiber cloth or carbon fiber cloth, and finally wait for the resin to solidify and form.
惟,上述成形技術雖然可以有效製造含纖維布之複合材料,以做為產品外殼使用,但其製品與模具接觸之表面會是精緻或是光滑的, 而與離型紙接觸之表面則會相對的粗糙,如此一來,對於需要內、外兩面都是具有高品質表面的外殼而言,單純使用習用的VARTM技術顯然無法達到預期之效果。有鑑於此,為了改善上述之缺點,創作人積多年的經驗及不斷的研發改進,遂有本創作之產生。 However, although the above-mentioned forming technology can effectively manufacture composite materials containing fiber cloth for use as a product shell, the surface of the product in contact with the mold will be delicate or smooth. The surface in contact with the release paper will be relatively rough. As a result, for shells that require high-quality surfaces on both the inner and outer sides, the conventional VARTM technology obviously cannot achieve the desired effect. In view of this, in order to improve the above shortcomings, the creators have accumulated years of experience and continuous research and development improvements, so this creation came into being.
本創作之一目的在提供一種複合材料結構及其成型方法,俾能解決習用VARTM成形技術無法讓複合材料產品之內、外兩面皆能具有高品質表面的問題,而能經由將液態樹脂經由至少一導流中間層之一端灌注進去,再經由分別讓液態樹脂向上及向下流動,以分別浸泡不同纖維層之方法,俾能成型內、外兩面皆具有高品質表面之複合材料結構,以做為具有特殊需求之產品外殼使用。 One purpose of this creation is to provide a composite material structure and its molding method, so as to solve the problem that the conventional VARTM molding technology cannot make the inner and outer surfaces of the composite material product have high-quality surfaces. One end of a diversion middle layer is poured into, and then the liquid resin flows up and down respectively to soak different fiber layers separately, so as to form a composite material structure with high-quality surfaces on both the inner and outer sides. It is used for products with special needs.
為達上述創作之目的,本創作所設之複合材料結構主要包括由上而下依序重疊之第一纖維層、至少一導流中間層及第二纖維層,其中之第一纖維層具有上下連通之第一間隙,第二纖維層具有上下連通之第二間隙,第一間隙與第二間隙分別填滿硬化後之樹脂,並使硬化後之樹脂分別包覆第一纖維層與第二纖維層;至少一導流中間層包括橫向之第一端及反向於第一端之第二端,且至少一導流中間層具有連通第一端與第二端之複數個通道,複數個通道分別連通第一間隙與第二間隙,複數個通道內填滿硬化後之樹脂,硬化後之樹脂包覆至少一導流中間層。 In order to achieve the purpose of the above creation, the composite material structure set up in this creation mainly includes a first fiber layer, at least one flow guiding middle layer, and a second fiber layer that overlap from top to bottom. The first fiber layer has upper and lower layers. Connected first gap, the second fiber layer has a second gap connected up and down, the first gap and the second gap are respectively filled with cured resin, and the cured resin covers the first fiber layer and the second fiber respectively Layer; at least one flow guiding middle layer includes a first end transversely and a second end opposite to the first end, and at least one flow guiding middle layer has a plurality of channels connecting the first end and the second end, and a plurality of channels The first gap and the second gap are respectively connected, the multiple channels are filled with hardened resin, and the hardened resin covers at least one flow guiding middle layer.
實施時,第一纖維層與第二纖維層分別包括複數層纖維乾布,而導流中間層係為亂纖之纖維布。 In implementation, the first fiber layer and the second fiber layer respectively include multiple layers of dry fiber cloth, and the flow-guiding middle layer is a fiber cloth of chaotic fibers.
本創作所設之複合材料結構之成型方法,主要包括下列步驟:a.將第一纖維層、至少一導流中間層及第二纖維層由上而下依序重疊鋪 在第一模具之表面上,第一纖維層之上方加上第二模具,再以真空塑膠薄膜沿著第一模具之四週覆蓋密封於第二模具之上方,同時讓至少一導流中間層之第一端連通進料端以灌注樹脂,至少一導流中間層之第二端連通吸氣端以抽取空氣;以及b.在真空塑膠薄膜與第一模具之間的空間抽真空之後,利用真空壓力讓液態樹脂經由至少一導流中間層分別向上及向下流動以浸泡第一纖維層及第二纖維層,同時讓液態樹脂由第一端朝向第二端之方向流動,並待液態樹脂完全含浸第一纖維層、至少一導流中間層及第二纖維層之後關閉進料端,最後等待液態樹脂固化成形。 The molding method of the composite material structure set up in this creation mainly includes the following steps: a. Laying the first fiber layer, at least one intermediate layer and the second fiber layer from top to bottom in order On the surface of the first mold, add a second mold on top of the first fiber layer, and then cover and seal on the second mold with a vacuum plastic film along the circumference of the first mold, and at the same time allow at least one of the guide middle layer The first end is connected to the feed end to infuse resin, and the second end of the at least one guide middle layer is connected to the suction end to extract air; and b. After the space between the vacuum plastic film and the first mold is evacuated, a vacuum is used The pressure allows the liquid resin to flow upwards and downwards through at least one intermediate layer to soak the first fiber layer and the second fiber layer, while allowing the liquid resin to flow from the first end to the second end, and wait until the liquid resin is completely After impregnating the first fiber layer, at least one guide middle layer, and the second fiber layer, the feeding end is closed, and finally the liquid resin is waited for to be solidified and formed.
實施時,本創作更包括一步驟,係在第一模具與第二模具之相對表面上分別塗佈一離型劑。 When implemented, this creation further includes a step of coating a release agent on the opposite surfaces of the first mold and the second mold respectively.
為便於對本創作能有更深入的瞭解,茲詳述於後: In order to facilitate a more in-depth understanding of this creation, I will elaborate on the following:
1:複合材料結構 1: Composite material structure
2:第一纖維層 2: The first fiber layer
21:第一間隙 21: The first gap
3:導流中間層 3: Diversion middle layer
31:第一端 31: first end
32:第二端 32: second end
33:通道 33: Channel
4:第二纖維層 4: The second fiber layer
41:第二間隙 41: second gap
5:第一模具 5: The first mold
51:模穴 51: Mould Cavity
6:第二模具 6: The second mold
7:真空塑膠薄膜 7: Vacuum plastic film
8:進料端 8: Feeding end
9:吸氣端 9: suction side
第1圖係為本創作複合材料結構之較佳實施例之立體剖面圖。 Figure 1 is a three-dimensional cross-sectional view of a preferred embodiment of creating a composite material structure.
第2圖係為本創作之各元件在結合前之立體分解圖。 Figure 2 is a three-dimensional exploded view of the components of this creation before they are combined.
第3圖係為本創作複合材料結構在成型時之使用狀態示意圖。 Figure 3 is a schematic diagram of the state of use of the creative composite material structure during molding.
第4圖係為第3圖之A部份之局部放大圖。 Figure 4 is a partial enlarged view of part A of Figure 3.
請參閱第1圖所示,其為本創作複合材料結構1之較佳實施例,係包括由上而下依序重疊之一第一纖維層2、一導流中間層3及一第二纖維層4。其中之第一纖維層2與第二纖維層4分別包括複數層上下重疊之碳纖維乾布,每一碳纖維乾布係為複數條碳纖維編織或單向纖維組合而成,
藉以讓第一纖維層2具有上下連通之第一間隙21,第二纖維層4具有上下連通之第二間隙41;實施時,纖維乾布亦可為複數條玻璃纖維、克維拉纖維(Kevlar)、芳綸纖維(Aramid fiber)或玄武岩纖維(Basalt Fibre)編織或單向纖維組合所製成。第一間隙21與第二間隙41分別填滿硬化後之樹脂,且硬化後之樹脂分別包覆第一纖維層2與第二纖維層4。而導流中間層3係為亂纖之纖維布,其橫向之一側做為第一端31,反向之另一側做為第二端32,導流中間層3之亂纖結構形成複數個通道33,複數個通道33連通第一端31與第二端32,且複數個通道33分別向上連通第一間隙21與向下連通第二間隙41,複數個通道33內填滿硬化後之樹脂,且硬化後之樹脂包覆導流中間層3。
Please refer to Figure 1, which is a preferred embodiment of the creative
請參閱第2~4圖所示,本創作複合材料結構1之成型方法主要包括下列步驟:
Please refer to Figures 2~4. The molding method of this
a.將第一纖維層2、導流中間層3及第二纖維層4由上而下依序重疊鋪在第一模具5之表面上,第一纖維層2之上方加上一第二模具6,再以一真空塑膠薄膜7沿著第一模具5之四週覆蓋密封於第二模具6之上方,同時讓導流中間層3之第一端31連通一進料端8以灌注樹脂,導流中間層3之第二端32連通一吸氣端9以抽取空氣。
a. Lay the
b.在真空塑膠薄膜7與第一模具5之間的空間抽真空之後,利用真空壓力讓液態樹脂經由導流中間層3分別向上及向下流動,並分別通過第一間隙21與第二間隙41,以浸泡第一纖維層2及第二纖維層4,同時讓液態樹脂經由複數個通道33,由導流中間層3之第一端31朝向第二端32之方向流動,並待液態樹脂完全含浸第一纖維層2、導流中間層3及第二纖維層4之後關閉進料端8,最後等待液態樹脂固化成形。
b. After the space between the vacuum
其中,本實施例之第一模具5係為母模,其具有一模穴51,模穴51位置之第一模具5表面塗佈離型劑以做為脫模使用,第二模具6係為金屬彎折板,金屬彎折板6之下表面與模穴51位置之第一模具5之表面相對應,且在金屬彎折板6之下表面上同樣塗佈離型劑。藉此,即可在液態樹脂固化成形之後,成型本創作之複合材料結構1,並能在脫膜之後,讓第一纖維層2之上表面與第二纖維層4之下表面皆能具有高品質之表面。實施時,上述第一模具5亦可為凸出之公模,第二模具6為金屬彎折板成形之母模,同樣可以成型本創作之複合材料結構1;另,上述第二模具6亦可為平板、曲面板、波浪面板或是其他形狀之彎折板,而在材料方面,則可以是以PE、PP或是鍍層為含鐵氟龍之表面金屬板,藉以成型不同之產品外殼。而導流中間層3亦可設為二層,其中間夾置一纖維板,同樣可以由數個導流中間層3之第一端31灌注樹脂以成型本創作之複合材料結構1。
Among them, the
綜上所述,依上文所揭示之內容,本創作確可達到預期之目的,提供一種能成型內、外兩面皆具有高品質表面,以做為具有特殊需求之產品外殼使用之複合材料結構及其成型方法,極具產業上利用之價值,爰依法提出發明專利申請。 In summary, based on the content disclosed above, this creation can indeed achieve the expected purpose, providing a composite material structure that can be molded with high-quality surfaces on both the inner and outer sides, which can be used as a product shell with special needs. Its forming method is of great value for industrial use. Yan filed an invention patent application in accordance with the law.
本創作雖為實現上述目的而揭露了較佳的具體實施例,惟其並非用以限制本創作之構造特徵,任何該技術領域之通常知識者應知,在本創作的技術精神下,任何輕易思及之變化或修飾皆是可能的,且皆為本創作之申請專利範圍所涵蓋。 Although this creation discloses a better specific embodiment for achieving the above-mentioned purpose, it is not intended to limit the structural features of this creation. Any person with ordinary knowledge in the technical field should know that under the technical spirit of this creation, any easy thinking The changes or modifications are all possible, and they are all covered by the scope of patent application for this creation.
1:複合材料結構 1: Composite material structure
2:第一纖維層 2: The first fiber layer
21:第一間隙 21: The first gap
3:導流中間層 3: Diversion middle layer
31:第一端 31: first end
32:第二端 32: second end
33:通道 33: Channel
4:第二纖維層 4: The second fiber layer
41:第二間隙 41: second gap
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Citations (4)
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US20030211194A1 (en) * | 2002-04-23 | 2003-11-13 | Michael Louderback | High-performance infusion system for VARTM fabrication |
US20080286564A1 (en) * | 2007-05-17 | 2008-11-20 | The Boeing Company | Nanotube-enhanced interlayers for composite structures |
US20090095206A1 (en) * | 2007-10-12 | 2009-04-16 | Walter Dacus | Ultralight Unit Load Device |
CN101700705A (en) * | 2009-06-08 | 2010-05-05 | 电子科技大学 | Thermosetting resin glass fiber laminating composite material and preparation method thereof |
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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US20030211194A1 (en) * | 2002-04-23 | 2003-11-13 | Michael Louderback | High-performance infusion system for VARTM fabrication |
US20080286564A1 (en) * | 2007-05-17 | 2008-11-20 | The Boeing Company | Nanotube-enhanced interlayers for composite structures |
US20090095206A1 (en) * | 2007-10-12 | 2009-04-16 | Walter Dacus | Ultralight Unit Load Device |
CN101700705A (en) * | 2009-06-08 | 2010-05-05 | 电子科技大学 | Thermosetting resin glass fiber laminating composite material and preparation method thereof |
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