JP4539294B2 - Method for manufacturing honeycomb sandwich panel - Google Patents

Method for manufacturing honeycomb sandwich panel Download PDF

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JP4539294B2
JP4539294B2 JP2004320669A JP2004320669A JP4539294B2 JP 4539294 B2 JP4539294 B2 JP 4539294B2 JP 2004320669 A JP2004320669 A JP 2004320669A JP 2004320669 A JP2004320669 A JP 2004320669A JP 4539294 B2 JP4539294 B2 JP 4539294B2
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sandwich panel
honeycomb sandwich
fiber
manufacturing
vacuum
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JP2006130734A (en
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隆太 四ツ倉
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Yokohama Rubber Co Ltd
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Description

この発明は、周波数選択板（frequency selective surface)を積層したハニカムサンドイッチパネル及びその製造方法にかかわり、更に詳しくは艦船用レドーム（ＡＥＭ／Ｓ：エンクローズドマスト）等に使用される周波数選択板を積層した大型のハニカムサンドイッチパネル及びバキューム樹脂トランスファー成形法（ＶａＲＴＭ：Vacuum-assisted Resin Transfer Molding) により製造するハニカムサンドイッチパネルの製造方法に関するものである。   The present invention relates to a honeycomb sandwich panel in which frequency selective plates are laminated and a method of manufacturing the honeycomb sandwich panel, and more specifically, a frequency selective plate used in a ship radome (AEM / S: enclosed mast). The present invention relates to a method for manufacturing a large honeycomb sandwich panel and a honeycomb sandwich panel manufactured by a vacuum-assisted resin transfer molding (VaRTM) method.

従来、繊維強化プラスチック（ＦＲＰ）パネル等の樹脂成形物を製造する場合、樹脂トランスファー成形法（ＲＴＭ）またはバキューム樹脂トランスファー成形法（ＶａＲＴＭ）が知られているが、特に船舶等の分野では近年大型船体の繊維強化プラスチックパネル化の開発に伴って、大型樹脂成形物はオートクレーブ法に入れて成形するには限度があるため、バキューム樹脂トランスファー成形法（ＶａＲＴＭ）による繊維強化プラスチックパネルの開発が進められている（例えば、特許文献１参照）。   Conventionally, when a resin molded product such as a fiber reinforced plastic (FRP) panel is manufactured, a resin transfer molding method (RTM) or a vacuum resin transfer molding method (VaRTM) is known. With the development of fiber reinforced plastic panels in the hull, there is a limit to molding large resin moldings in the autoclave method, so the development of fiber reinforced plastic panels by the vacuum resin transfer molding method (VaRTM) has been promoted. (For example, refer to Patent Document 1).

また、近年では艦船の上構マスト部のステルス化（レーダー等に捕捉され難くする）のために、周波数選択板（FSS ：frequency selective surface)を適用した艦船用レドーム（ＡＥＭ／Ｓ：エンクローズドマスト）の開発も進んでいる。   In recent years, a ship radome (AEM / S: Enclosed Mast) to which a frequency selective surface (FSS) is applied to stealth the ship's upper mast (makes it difficult to be captured by radar). ) Is also under development.

然しながら、艦船用レドームは、スキン材にＧＦＲＰ（ガラス繊維強化プラスチック）を使用したハニカムコアサンドイッチパネル構造をしており、パネルを組み合わせた多面体構造になっている上、オートクレーブの硬化設備では成型出来ない大きなサイズであることから、製造が大変であり、更に上記のような周波数選択板を艦船用レドームに組込んだ成形方法は未だ提案されていないのが現実である。
特開２００１−９６６１１号公報 However, the ship radome has a honeycomb core sandwich panel structure that uses GFRP (glass fiber reinforced plastic) as the skin material, and has a polyhedral structure that combines the panels. Since it is a large size, it is difficult to manufacture, and it is a reality that a molding method in which the frequency selection plate as described above is incorporated in a ship radome has not yet been proposed.
JP 2001-96611 A

この発明は、かかる従来の問題点に着目して案出されたもので、特に周波数選択板を組込んだ大型の繊維強化プラスチックパネルを容易に製造することが出来るハニカムサンドイッチパネル及びその製造方法を提供することを目的とするものである。   The present invention has been devised by paying attention to such conventional problems, and in particular, a honeycomb sandwich panel capable of easily manufacturing a large fiber-reinforced plastic panel incorporating a frequency selection plate and a manufacturing method thereof. It is intended to provide.

上記目的を達成するための、本発明のハニカムサンドイッチパネルの製造方法は、金属製のベース部材上にゴム状弾性シートを敷設し、このゴム状弾性シート上に、繊維補強基材、周波数選択板を表裏面に接着した非金属材料から成るハニカムコアを設置し、更に繊維補強基材を少なくとも一層以上順次積層させた後、その全体をフィルム状のバキュームバックで覆い、該バキュームバック内の積層体をバッキュームした状態で反応樹脂材料を供給し、前記繊維補強基材に反応樹脂材料を含浸硬化させることを要旨とするものである。 In order to achieve the above object, a method for manufacturing a honeycomb sandwich panel of the present invention includes a rubber-like elastic sheet laid on a metal base member, and a fiber-reinforced base material and a frequency selection plate on the rubber-like elastic sheet. the honeycomb core made of bonded non-metallic material is placed on both surfaces, after being further sequentially laminated at least one layer of fibrous reinforcing substrate, covering the whole with a film-like vacuum back laminate in the vacuum back The reaction resin material is supplied in a vacuumed state and the fiber-reinforced base material is impregnated and cured with the reaction resin material.

ここで、前記ハニカムコアを、芳香族ポリアミド繊維、発泡材、シンタクチックフォーム及び木材から選ばれた一つにより構成するものである。 Here, the honeycomb core is constituted by one selected from aromatic polyamide fiber, foam material, syntactic foam, and wood.

このような製造方法により、周波数選択板を組込んだ大型の繊維強化プラスチックパネルを容易に製造することが出来る。 By such a manufacturing method, Ru can be easily manufactured large fiber-reinforced plastic panels incorporating a frequency selective surface.

この発明は、上記のように構成したので、周波数選択板を組込んだ大型の繊維強化プラスチックパネルをバキューム樹脂トランスファー成形法（ＶａＲＴＭ）による容易に製造することが出来、更に、バキューム樹脂トランスファー成形法で、ハニカムコア材として、樹脂や木材等に比べて安価で、軽量な芳香族ポリアミドハニカムコア（ノーメックス（登録商標）ハニカムコア）を使用することが出来る効果がある。   Since the present invention is configured as described above, a large-sized fiber reinforced plastic panel incorporating a frequency selection plate can be easily manufactured by a vacuum resin transfer molding method (VaRTM), and further a vacuum resin transfer molding method Thus, there is an effect that an aromatic polyamide honeycomb core (Nomex (registered trademark) honeycomb core) which is cheaper and lighter than resin and wood can be used as the honeycomb core material.

また、バキューム樹脂トランスファー成形法でハニカムサンドイッチパネルを製造する際、反応樹脂材料が熱容量の大きい金属製のベース部材に直接接触することがなく、この結果、反応樹脂材料の反応熱が金属製のベース部材に吸熱されることがなく樹脂成形物の硬化不良を有効に防止することが出来る効果がある。   Further, when manufacturing a honeycomb sandwich panel by the vacuum resin transfer molding method, the reaction resin material does not directly contact the metal base member having a large heat capacity. As a result, the reaction heat of the reaction resin material is reduced to the metal base. There is an effect that it is possible to effectively prevent poor curing of the resin molded product without being absorbed by the member.

以下、添付図面に基づきこの発明の実施の形態を説明する。   Embodiments of the present invention will be described below with reference to the accompanying drawings.

図１は、本発明のハニカムサンドイッチパネルの製造方法により製造した周波数選択板を組込んだハニカムサンドイッチパネルの分解斜視図を、図２はそのハニカムサンドイッチパネルの斜視図をそれぞれ示している。このハニカムサンドイッチパネルは、非金属材料により成形したハニカムコア１の表裏面に、フィルム状のエポキシ系接着材から成る接着剤２を介して特定の周波数を透過、または遮断する周波数選択板３（FSS ：frequency selective surface)を積層すると共に、その周波数選択板３の表面に繊維強化樹脂シート４を一体的に積層して構成するものである。 Figure 1 is an exploded perspective view of the honeycomb sandwich panel honeycomb sandwich panel incorporating a frequency selective plate produced by the production method of the present invention, FIG 2 shows a perspective view of the honeycomb sandwich panel of its respective. Honeycomb sandwich this panel is on the front and back surfaces of the honeycomb core 1 that is formed by a non-metallic material, transmits a specific frequency through the adhesive 2 composed of a film-like epoxy adhesive, or cutoff frequency selective plate 3 ( A FSS (frequency selective surface) is laminated, and a fiber reinforced resin sheet 4 is integrally laminated on the surface of the frequency selective plate 3.

前記ハニカムコア１としては、非金属材料である芳香族ポリアミド（ノーメックス（登録商標））の他、樹脂材、発泡材、シンタクチックフォーム、木材から選ばれた一つにより構成し、この実施形態では、樹脂や木材等に比べて安価で、軽量な芳香族ポリアミド繊維により形成したハニカムコアを使用する。また、前記接着剤２としては、フィルム状のエポキシ系接着材を使用する。   The honeycomb core 1 is made of one selected from a resin material, a foam material, a syntactic foam, and wood in addition to an aromatic polyamide (Nomex (registered trademark)) which is a non-metallic material. A honeycomb core formed of aromatic polyamide fiber that is cheaper and lighter than resin or wood is used. Moreover, as the adhesive 2, a film-like epoxy adhesive is used.

また、周波数選択板３（FSS ：frequency selective surface)は、軽金属板により形成され、また特定の周波数を透過、または遮断するために、軽金属板の厚さや、種々の貫通孔を形成して使用するものである。   Further, the frequency selective plate 3 (FSS: frequency selective surface) is formed of a light metal plate, and is used by forming a thickness of the light metal plate or various through holes in order to transmit or block a specific frequency. Is.

次に、上記のようなハニカムサンドイッチパネルを、バキューム樹脂トランスファー成形法（ＶａＲＴＭ）により製造する方法を図３を参照しながら説明する。   Next, a method for manufacturing the honeycomb sandwich panel as described above by a vacuum resin transfer molding method (VaRTM) will be described with reference to FIG.

先ず、金属製のベース部材５上にゴム状弾性シート６を敷設し、このゴム状弾性シート上６に、繊維強化樹脂シート４（繊維補強基材）、周波数選択板３を接着剤２を介して表裏面に接着した非金属材料から成るハニカムコア１（芳香族ポリアミドハニカムコア）を載置し、更に繊維強化樹脂シート４（繊維補強基材）を少なくとも一層以上順次積層させた後、積層体全体を樹脂材料投入口７とバキューム配管８を周縁の一部に配設したフィルム状のバキュームバック９で覆い、周縁部をベース部材５上に接着テープ１０等で密閉する。   First, a rubber-like elastic sheet 6 is laid on a metal base member 5, and a fiber-reinforced resin sheet 4 (fiber reinforced base material) and a frequency selection plate 3 are placed on the rubber-like elastic sheet 6 via an adhesive 2. The honeycomb core 1 (aromatic polyamide honeycomb core) made of a nonmetallic material adhered to the front and back surfaces is placed, and at least one or more fiber reinforced resin sheets 4 (fiber reinforced base material) are sequentially laminated, and then the laminate. The whole is covered with a film-like vacuum back 9 in which the resin material inlet 7 and the vacuum pipe 8 are arranged at a part of the periphery, and the periphery is sealed on the base member 5 with an adhesive tape 10 or the like.

その後、バキュームバック９内の積層体をバキューム配管８に接続したバキュームポンプＰでバッキュームし、内部を真空状態にした状態で樹脂材料供給タンク１１に接続する樹脂材料投入口７から積層体の繊維強化樹脂シート４に常温硬化型の反応樹脂材料Ｑ（例えば、ビニールエステル等の熱可塑性材料）を供給して含浸させ、反応樹脂材料Ｑの反応熱により含浸硬化させる。   Thereafter, the laminated body in the vacuum back 9 is vacuumed by a vacuum pump P connected to the vacuum pipe 8, and fiber reinforcement of the laminated body is made from the resin material inlet 7 connected to the resin material supply tank 11 in a vacuum state. The resin sheet 4 is supplied with a room-temperature curable reaction resin material Q (for example, a thermoplastic material such as vinyl ester) and impregnated, and impregnated and cured by reaction heat of the reaction resin material Q.

このように、反応樹脂材料Ｑを供給して含浸硬化させるので、反応樹脂材料Ｑが熱容量の大きい金属製のベース部材５に直接接触することがなく、この結果、樹脂成形物Ｗの発熱した反応熱が金属製のベース部材５に吸熱されることがなく硬化不良を有効に防止することが出来る。   In this way, since the reaction resin material Q is supplied and impregnated and cured, the reaction resin material Q does not directly contact the metal base member 5 having a large heat capacity. Heat is not absorbed by the metal base member 5 and curing failure can be effectively prevented.

また、ゴム状弾性シート６は、樹脂材料に対する離型効果もあるため、予め離型剤を塗布する必要がなく、金属製モールドや金属製プレートから樹脂成形物Ｗを円滑に離型または剥離させることが出来る。この結果、生産性の向上を図ることも可能となる。   Moreover, since the rubber-like elastic sheet 6 also has a releasing effect on the resin material, it is not necessary to apply a release agent in advance, and the resin molded product W can be released or released smoothly from a metal mold or metal plate. I can do it. As a result, productivity can be improved.

本発明のハニカムサンドイッチパネルの製造方法により製造したハニカムサンドイッチパネルの分解斜視図である。It is a disassembled perspective view of the honeycomb sandwich panel manufactured with the manufacturing method of the honeycomb sandwich panel of this invention . 図１のハニカムサンドイッチパネルの斜視図である。It is a perspective view of a honeycomb sandwich panel of Figure 1. 本発明のハニカムサンドイッチパネルの製造方法を実施するためのバキューム樹脂トランスファー成形装置の一部拡大断面図である。It is a partial expanded sectional view of the vacuum resin transfer molding apparatus for enforcing the manufacturing method of the honeycomb sandwich panel of this invention.

符号の説明Explanation of symbols

１ ハニカムコア ２ 接着剤
３ 周波数選択板 ４ 繊維強化樹脂シート
５ ベース部材 ６ ゴム状弾性シート
７ 樹脂材料投入口 ８ バキューム配管
９ バキュームバック １０ 接着テープ
１１ 樹脂材料供給タンク
Ｑ 常温硬化型の反応樹脂材料
DESCRIPTION OF SYMBOLS 1 Honeycomb core 2 Adhesive 3 Frequency selection board 4 Fiber reinforced resin sheet 5 Base member 6 Rubber elastic sheet 7 Resin material inlet 8 Vacuum piping 9 Vacuum back 10 Adhesive tape 11 Resin material supply tank Q Room temperature curing type reaction resin material

Claims (2)

金属製のベース部材上にゴム状弾性シートを敷設し、このゴム状弾性シート上に、繊維補強基材、周波数選択板を表裏面に接着した非金属材料から成るハニカムコアを設置し、更に繊維補強基材を少なくとも一層以上順次積層させた後、その全体をフィルム状のバキュームバックで覆い、該バキュームバック内の積層体をバッキュームした状態で反応樹脂材料を供給し、前記繊維補強基材に反応樹脂材料を含浸硬化させるハニカムサンドイッチパネルの製造方法。 A rubber-like elastic sheet is laid on a metal base member, and a honeycomb core made of a non-metallic material with a fiber-reinforced base material and a frequency selection plate bonded to the front and back surfaces is installed on the rubber-like elastic sheet, and further fibers After sequentially laminating at least one layer of the reinforcing base material, the whole is covered with a film-like vacuum back, and the reactive resin material is supplied in a state where the laminated body in the vacuum back is vacuumed to react with the fiber-reinforced base material. A method for manufacturing a honeycomb sandwich panel in which a resin material is impregnated and cured. 前記ハニカムコアを、芳香族ポリアミド繊維、発泡材、シンタクチックフォーム及び木材から選ばれた一つにより構成する請求項１に記載のハニカムサンドイッチパネルの製造方法。 The method for manufacturing a honeycomb sandwich panel according to claim 1 , wherein the honeycomb core is composed of one selected from an aromatic polyamide fiber, a foam material, a syntactic foam, and wood.
JP2004320669A 2004-11-04 2004-11-04 Method for manufacturing honeycomb sandwich panel Expired - Fee Related JP4539294B2 (en)

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CN110406129A (en) * 2019-08-29 2019-11-05 西安电子工程研究所 A kind of antenna house near-net-shape mold and forming method
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JP2004179730A (en) * 2002-11-25 2004-06-24 Yokohama Rubber Co Ltd:The Joining structure of layered body in which frequency selecting element used for radome is incorporated

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KR20200128041A (en) 2018-03-29 2020-11-11 엠티-텍 고도카이샤 Automotive parts
WO2020054050A1 (en) 2018-09-14 2020-03-19 ＭＴ－Ｔｅｃ合同会社 Automotive sound absorption material
US11872945B2 (en) 2018-09-14 2024-01-16 Kotobukiya Fronte Co., Ltd. Automotive sound absorption material
CN110406129A (en) * 2019-08-29 2019-11-05 西安电子工程研究所 A kind of antenna house near-net-shape mold and forming method

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