JP4552794B2 - Electrical bonding structure of carbon fiber reinforced plastic product and manufacturing method thereof - Google Patents
Electrical bonding structure of carbon fiber reinforced plastic product and manufacturing method thereof Download PDFInfo
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- JP4552794B2 JP4552794B2 JP2005212127A JP2005212127A JP4552794B2 JP 4552794 B2 JP4552794 B2 JP 4552794B2 JP 2005212127 A JP2005212127 A JP 2005212127A JP 2005212127 A JP2005212127 A JP 2005212127A JP 4552794 B2 JP4552794 B2 JP 4552794B2
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- carbon fiber
- reinforced plastic
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- fiber reinforced
- honeycomb core
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- 239000004918 carbon fiber reinforced polymer Substances 0.000 title claims description 29
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 239000002184 metal Substances 0.000 claims description 46
- 125000006850 spacer group Chemical group 0.000 claims description 19
- 239000000853 adhesive Substances 0.000 claims description 17
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 16
- 230000001070 adhesive effect Effects 0.000 claims description 16
- 239000004917 carbon fiber Substances 0.000 claims description 16
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 12
- 239000003651 drinking water Substances 0.000 claims description 9
- 230000000149 penetrating effect Effects 0.000 claims description 9
- 235000020188 drinking water Nutrition 0.000 claims description 8
- 229920001187 thermosetting polymer Polymers 0.000 claims description 7
- 239000000843 powder Substances 0.000 claims description 6
- 239000004744 fabric Substances 0.000 claims description 5
- 239000011159 matrix material Substances 0.000 claims description 5
- 229920005989 resin Polymers 0.000 claims description 5
- 239000011347 resin Substances 0.000 claims description 5
- 239000007769 metal material Substances 0.000 claims description 4
- 229920002430 Fibre-reinforced plastic Polymers 0.000 claims description 2
- 239000011151 fibre-reinforced plastic Substances 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims description 2
- 239000002990 reinforced plastic Substances 0.000 claims description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims 2
- 229910052799 carbon Inorganic materials 0.000 claims 1
- 238000010030 laminating Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 229920000784 Nomex Polymers 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 239000004763 nomex Substances 0.000 description 2
- 229920006231 aramid fiber Polymers 0.000 description 1
- 235000012206 bottled water Nutrition 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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- Pressure Vessels And Lids Thereof (AREA)
- Laminated Bodies (AREA)
Description
この発明は、炭素繊維強化プラスチック製品の電気的ボンディング構造及びその製造方法に係わり、更に詳しくは炭素繊維強化プラスチック製品の内外層を同時に電気的に接続させてボンディングを取ることを可能とした炭素繊維強化プラスチック製品の電気的ボンディング構造及びその製造方法に関するものである。 The present invention relates to an electrical bonding structure for a carbon fiber reinforced plastic product and a method for manufacturing the same, and more particularly, a carbon fiber that enables bonding by electrically connecting inner and outer layers of a carbon fiber reinforced plastic product simultaneously. The present invention relates to an electrical bonding structure of a reinforced plastic product and a manufacturing method thereof.
一般に炭素繊維強化プラスチック製品、例えば、容器や航空機用の飲料水タンク等には、静電気が帯電し易いため、アース等が取付けられている。例えば、図3及び図4に示すように、飲料水タンク等の中空製品の外郭を構成する場合、非金属製のハニカムコア1の内外面に少なくとも一層以上のカーボン繊維2にマトリックス樹脂3を含浸させた炭素繊維強化プラスチックシートから成る内層4と外層5とを積層させて構成する。そして、このような中空製品から電気的ボンディングを取る際、製品硬化後に繊維強化プラスチックシートの外層3の表面をサンディングしてカーボン繊維2を露出させる。
Generally, a carbon fiber reinforced plastic product, for example, a container or a drinking water tank for an aircraft, is attached with a ground or the like because static electricity is easily charged. For example, as shown in FIG. 3 and FIG. 4, when forming the outer shell of a hollow product such as a drinking water tank, at least one or
そして、露出したカーボン繊維2の部分に、断面略T字状の金属材料で構成した金属スタッド6を導電性の室温硬化型接着剤7で接着する方法が行われていた(例えば、特許文献1参照)。
And the method which adhere | attaches the
然しながら、このような方法では、アラミド繊維等の絶縁体材料(ノーメックス)のコアを使用したサンドイッチ構造の炭素繊維強化プラスチック製品では、外層5側にしか金属スタッド6が接触せず、コア1の内層側の電気的ボンディングが取れないと言う問題があった。また、サンディングによりカーボン繊維2を傷付け、強度低下を招く恐れがあった。更に、炭素繊維強化プラスチック層(カーボン繊維2にマトリックス樹脂3)と金属スタッド6との間の抵抗が大きく、十分な電気的ボンディング効果を得ることが出来ないと言う問題があった。
However, in such a method, in the carbon fiber reinforced plastic product having a sandwich structure using an insulating material (Nomex) core such as an aramid fiber, the
更に、導電性の室温硬化型接着剤7では、接着強度か不十分であり、金属スタッド6に十分なトルク強度を得られない場合がある。その結果、ボンディングワイヤ端子の取付け時、ナットの締め付けトルクが強過ぎると外れてしまうと言う恐れがあった。
この発明はかかる従来の問題点に着目し、強度低下の恐れがなく、炭素繊維強化プラスチック製品の内外層を同時に電気的に接続させてボンディングを取ることを可能とした炭素繊維強化プラスチック製品の電気的ボンディング構造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 pays attention to such a conventional problem, and there is no fear of strength reduction, and the electrical property of the carbon fiber reinforced plastic product that enables bonding by simultaneously electrically connecting the inner and outer layers of the carbon fiber reinforced plastic product. It is an object of the present invention to provide a general bonding structure and a method for manufacturing the same.
この発明は上記目的を達成するため、この発明の炭素繊維強化プラスチック製品の電気的ボンディング構造は、ハニカムコアの一部に内外面に貫通する筒状の金属スペーサを埋設し、前記金属スペーサ及びハニカムコアの内外面に導電性のパッチ部材を積層し、前記金属スペーサ及び導電性のパッチ部材を貫通してハニカムコアの内面側から外面側に貫通する金属スタッドを設け、前記ハニカムコアの内外面に炭素繊維強化プラスチックシートから成る内層と外層とを積層させて構成したことを要旨とするものである。 In order to achieve the above object, according to the present invention, an electrical bonding structure for a carbon fiber reinforced plastic product according to the present invention includes a cylindrical metal spacer embedded in a part of a honeycomb core that penetrates the inner and outer surfaces, and the metal spacer and the honeycomb. Conductive patch members are laminated on the inner and outer surfaces of the core, and metal studs are provided through the metal spacers and the conductive patch members so as to penetrate from the inner surface side to the outer surface side of the honeycomb core. The gist is that an inner layer and an outer layer made of a carbon fiber reinforced plastic sheet are laminated.
ここで、前記中空製品が、航空機用飲料水タンクであり、また前記導電性のパッチ部材が、カーボン繊維クロスに金属粉を混合させた熱硬化型導電接着剤を含浸させて構成し、更に、前記金属スタッドは、断面略T字状の金属材料で構成したものである。 Here, the hollow product is an aircraft drinking water tank, and the conductive patch member is constituted by impregnating a thermosetting conductive adhesive obtained by mixing a metal powder into a carbon fiber cloth, The metal stud is made of a metal material having a substantially T-shaped cross section.
また、この発明の炭素繊維強化プラスチック製品の電気的ボンディング構造の製造方法は、非金属製のハニカムコアの一部に内面側から外面側に貫通する筒状の金属スペーサを埋設し、この金属スペーサの上下面及びハニカムコアの内外面にカーボン繊維クロスに金属粉を混合させた熱硬化型導電接着剤を含浸させて構成した所定の大きさの導電性のパッチ部材を積層し、前記金属スペーサの中空部にハニカムコアの内面側から外面側に金属スタッドを貫通させて立設させると共に、ハニカムコアの内外面に炭素繊維強化プラスチックシートから成る内層と外層とを積層させ、前記金属スタッドを内外層の成形時に同時に一体的に成形することを要旨とするものである。 Further, according to the method for manufacturing an electrical bonding structure of a carbon fiber reinforced plastic product of the present invention, a cylindrical metal spacer penetrating from an inner surface side to an outer surface side is embedded in a part of a non-metallic honeycomb core, and the metal spacer A conductive patch member of a predetermined size configured by impregnating a thermosetting conductive adhesive in which a metal powder is mixed with carbon fiber cloth is laminated on the upper and lower surfaces and the inner and outer surfaces of the honeycomb core. A metal stud is erected from the inner surface side to the outer surface side of the honeycomb core in the hollow portion, and an inner layer and an outer layer made of a carbon fiber reinforced plastic sheet are laminated on the inner and outer surfaces of the honeycomb core. The gist is to simultaneously and integrally form at the time of molding.
このように構成することで、炭素繊維強化プラスチック製品の内外層を同時に電気的に接続させてボンディングを取ることが出来るものである。 With this configuration, the inner and outer layers of the carbon fiber reinforced plastic product can be electrically connected at the same time for bonding.
この発明は上記のように構成したので、以下のような優れた効果を奏するものである。(a).ハニカムコアを貫通する金属スペーサにより、内層と外層とを同時に電気的に接続させてボンディングを取ることが出来る。
(b).外層のボンディング面のサンディングの必要が無く、強度低下の恐れが無くなる。
(c).導電性接着剤を含浸したパッチの追加により内外層の炭素繊維強化プラスチックと金属スタッドとの間の抵抗を減らし、ボンディング効果を高めることが出来る。
(d).熱硬化型導電性接着剤の適用及び炭素繊維強化プラスチックとの同時硬化により、金属スタッドの取付けについて安定した接着強度を得ることが出来トルク強度も安定する。
Since the present invention is configured as described above, the following excellent effects can be obtained. (a) With the metal spacer penetrating the honeycomb core, the inner layer and the outer layer can be electrically connected at the same time for bonding.
(b) There is no need for sanding of the bonding surface of the outer layer, and there is no risk of strength reduction.
(c) By adding a patch impregnated with a conductive adhesive, the resistance between the inner and outer carbon fiber reinforced plastics and the metal stud can be reduced and the bonding effect can be enhanced.
(d). By applying the thermosetting conductive adhesive and simultaneously curing with the carbon fiber reinforced plastic, a stable adhesive strength can be obtained for the mounting of the metal stud, and the torque strength is also stabilized.
以下、添付図面に基づき、この発明の実施形態を説明する。なお、従来例と同一構成要素は、同一符号を付して説明は省略する。 Embodiments of the present invention will be described below with reference to the accompanying drawings. Note that the same components as those in the conventional example are denoted by the same reference numerals and description thereof is omitted.
図1は、この発明を実施した炭素繊維強化プラスチックにより製造した航空機用飲料水タンクの断面図、図2は図1のX部の拡大断面図を示し、前記航空機用飲料水タンク11は、非金属製のハニカムコア1の内外面に少なくとも一層以上のカーボン繊維2(導電性材料)にエポキシ樹脂等の絶縁材料から成るマトリックス樹脂3を含浸させた炭素繊維強化プラスチックシートから成る内層4と外層5とを積層させて中空製品の外郭を構成している。
FIG. 1 is a cross-sectional view of an aircraft potable water tank manufactured by a carbon fiber reinforced plastic embodying the present invention, FIG. 2 is an enlarged cross-sectional view of a portion X in FIG. An
前記ハニカムコア1の一部には、内外面に貫通する筒状の金属スペーサ12が埋設してあり、この金属スペーサ12及びハニカムコア1の内外面に導電性接着剤を含浸させたパッチ部材13a,13bを積層し、前記金属スペーサ12及び導電性のパッチ部材13a,13bを貫通してハニカムコア1の内面側から外面側に貫通する断面略T字状の金属材料で構成した金属スタッド6aが設けてある。
A
前記パッチ部材13a,13bとしては、例えば、カーボン繊維クロスに金属粉を混合させた熱硬化型導電接着剤を含浸させて構成してある。
The
そして、前記ハニカムコア1の内外面に炭素繊維強化プラスチックシートから成る内層4と外層5とを積層させて一体的に成形し、このように構成した外郭材料を航空機用飲料水タンク11として用いるものである。
Then, the
次に、上記のような航空機用飲料水タンク11の外郭の製造方法を具体的に説明する。先ず、非金属製(例えば、ノーメックス等)のハニカムコア1の一部に内面側から外面側に貫通する筒状の金属スペーサ2を埋設し、この金属スペーサ2の上下面及びハニカムコア1の内外面にカーボン繊維クロスに金属粉を混合させた熱硬化型導電接着剤を含浸させて構成した所定の大きさの導電性のパッチ部材13a,13bを積層する。
Next, the manufacturing method of the outline of the above-mentioned aircraft
そして、前記金属スペーサ2の中空部にハニカムコア1の内面側から外面側に断面略T字状に形成した金属スタッド6aを貫通させて立設させると共に、ハニカムコア1の内外面に炭素繊維強化プラスチックシートから成る内層4と外層5とを積層させ、前記金属スタッド6aを内外層4,5の成形時に同時に一体的に成形する。
Then, a
このように構成することで、ハニカムコア1を貫通する金属スペーサ2により、内層4と外層5とを同時に電気的に接続させてボンディングを取ることが出来る。また、導電性接着剤を含浸したパッチ部材13a,13bの追加により内外層の炭素繊維強化プラスチックと金属スタッド6aとの間の抵抗を減らし、ボンディング効果を高めることが出来、更に熱硬化型導電性接着剤の適用及び炭素繊維強化プラスチックとの同時硬化により、金属スタッド6aの取付けについて安定した接着強度を得ることが出来、トルク強度も安定させることが出来る。
With such a configuration, the
1 ハニカムコア 2 カーボン繊維
3 マトリックス樹脂 4 内層
5 外層 6,6a 金属スタッド
7 室温硬化型接着剤
11 航空機用飲料水タンク 12 金属スペーサ
13a,13b パッチ部材
DESCRIPTION OF
Claims (5)
前記ハニカムコアの一部に内外面に貫通する筒状の金属スペーサを埋設し、前記金属スペーサ及びハニカムコアの内外面に導電性のパッチ部材を積層し、前記金属スペーサ及び導電性のパッチ部材を貫通してハニカムコアの内面側から外面側に貫通する金属スタッドを設け、前記ハニカムコアの内外面に炭素繊維強化プラスチックシートから成る内層と外層とを積層させて構成したことを特徴とする炭素繊維強化プラスチック製品の電気的ボンディング構造。 Carbon with a sandwich outer structure in which a carbon fiber reinforced plastic in which at least one carbon fiber is impregnated with a matrix resin is arranged on the inner and outer surfaces of a non-metallic honeycomb core, and a metal stud is provided on a part of the outer shell In the electrical bonding structure of fiber reinforced plastic products,
Cylindrical metal spacers penetrating inner and outer surfaces are embedded in a part of the honeycomb core, conductive patch members are stacked on the inner and outer surfaces of the metal spacers and the honeycomb core, and the metal spacers and the conductive patch members are stacked. A carbon fiber comprising a metal stud penetrating from the inner surface side to the outer surface side of the honeycomb core and laminating an inner layer and an outer layer made of a carbon fiber reinforced plastic sheet on the inner and outer surfaces of the honeycomb core. Electrical bonding structure for reinforced plastic products.
A cylindrical metal spacer penetrating from the inner surface side to the outer surface side was embedded in a part of the non-metallic honeycomb core, and the metal powder was mixed with the carbon fiber cloth on the upper and lower surfaces of the metal spacer and the inner and outer surfaces of the honeycomb core. A conductive patch member of a predetermined size constructed by impregnating a thermosetting conductive adhesive is laminated, and a metal stud is passed through the hollow portion of the metal spacer from the inner surface side to the outer surface side of the honeycomb core. In addition, an inner layer and an outer layer made of a carbon fiber reinforced plastic sheet are laminated on the inner and outer surfaces of the honeycomb core, and the metal stud is integrally molded simultaneously with the molding of the inner and outer layers. Production method.
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JP6213147B2 (en) * | 2013-10-25 | 2017-10-18 | 横浜ゴム株式会社 | Aircraft water tank |
JP7149693B2 (en) * | 2017-08-31 | 2022-10-07 | 株式会社イノアックコーポレーション | Fiber-reinforced molded article and method for producing the same |
JP6968759B2 (en) * | 2018-06-29 | 2021-11-17 | 三菱重工業株式会社 | Aircraft interior parts, their manufacturing methods, and their replacement methods |
CN112939619B (en) * | 2021-01-29 | 2022-06-28 | 中国人民解放军国防科技大学 | Silicon carbide fiber reinforced ceramic-based ultra-wideband wave-absorbing composite material with gradient distribution and preparation method thereof |
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JPS5428115U (en) * | 1977-07-29 | 1979-02-23 | ||
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