JP6708648B2 - 繊維強化の構造体 - Google Patents
繊維強化の構造体 Download PDFInfo
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Description
(i)マンドレルは、外面と、中空の内部と、流体が内部に入ることを可能にするためのアパーチャとを備える、第一の材料からなるマンドレルを提供するステップ(i)であって、第一の材料が、室温で剛体であり、溶融する溶融温度を有して、溶融温度に近づくと第一の材料が変形可能になるステップと、
(ii)アパーチャをブロックせずにマンドレルの外面上に第二の材料からなる層を設けるステップであって、第二の材料が、未硬化の熱硬化性の樹脂と、構造体を強化するように構成された繊維とを備え、第二の材料が、硬化温度よりも低いとしなやかである(pliable)とともに硬化温度よりも高いと硬化する硬化温度を有するステップとを備える。
追加的に、該製造方法は、
(iii)モールドで形成されるモールドキャビティにおいてマンドレルおよび層を配置するステップであって、流体がマンドレルのアパーチャに到達できるようにモールドが構成されるステップと、
(iv)マンドレルを外方へ膨張させるように働く力を生成し、マンドレルを変形可能にするための第一の材料の溶融温度よりも低い温度にマンドレルを加熱してマンドレルが外方に膨張して層をモールドに押し付けることを可能にして、構造体を硬化しかつ形成するために層を第二の材料の硬化温度よりも高い温度に加熱するために、アパーチャを介してマンドレルの内部に加圧流体を導入するステップとを備える。
当該方法は、(v)マンドレルの溶融のために、第一の材料の溶融温度よりも高い温度にマンドレルを加熱するステップも備える。
当該方法は、(vi)溶融されたマンドレルを構造体から除去するステップをさらに備えることができる。
モールドキャビティと、モールドの外部からモールドキャビティにアクセス可能にするための開口とを有するモールドと、
中空の内部と、流体が内部に入ることを可能にするためのアパーチャとを備えるマンドレルとを備える成形システムである。マンドレルは、マンドレルがモールドキャビティに配置されるときに、アパーチャが開口を介してアクセスされることを可能にするように構成される。マンドレルは、室温で剛体であるとともに第一の材料が溶融する溶融温度を有する第一の材料からなる。また、溶融温度に近づくとき、第一の材料は変形可能になる。マンドレルは、マンドレルの少なくとも一部分上に設けられる層を収容するための、マンドレルとモールドとの間にスペースを形成するように構成されることができる。
12 外面
14 中空の内部
16 アパーチャ
18 層
20 モールド
22 モールドキャビティ
24 構造体
26 オートクレーブ
28 圧力源
30 加熱要素
32 モールドの開口
34 矩形の壁セクション
36 ねじ
37 穴
38 突出部
40 圧力管体
42 オーブン
44 ポンプ
50 ヒーター
52 モールドの追加の開口
54 環状の中心部
56 突出
58 回転軸
60 第一の部分
62 第二の部分
64 ボルト
66 ギャップ
68 突出の先端部
70 追加の外面
72 フリース
74 バッグ
76 導出部
78 追加の層
80 出口
82 ホイール
84 リム
86 円筒状のスリーブ
88 自由縁
90 ハブ
92 スポーク
94 アクセスホール
Claims (10)
- 繊維強化の構造体の製造方法であって、該製造方法は、
(i)第一の材料からなるマンドレルを提供するステップであって、前記マンドレルが、外面と、中空の内部と、流体が前記内部に入ることを可能にするアパーチャとを備え、第一の材料が、室温で剛体であるとともに、第一の材料が溶融する溶融温度を有し、第一の材料が溶融温度に近づくとき、第一の材料が変形可能になるステップと、
(ii)前記アパーチャをブロックすることなく、前記マンドレルの外面の上に第二の材料からなる層を設けるステップであって、第二の材料が、未硬化の熱硬化性の樹脂と、前記構造体を強化するように構成された繊維とを備え、第二の材料が硬化温度よりも低いとしなやかであるとともに硬化温度よりも高いと硬化する硬化温度を有するステップと、
(iii)モールドによって形成されるモールドキャビティに前記マンドレルおよび前記層を配置するステップであって、流体が前記マンドレルの前記アパーチャに到達できるように前記モールドが構成されるステップと、
(iv)前記マンドレルを外側に膨張させ、前記マンドレルを変形可能にするとともに前記マンドレルが外側に膨張して前記層を前記モールドに押し付けるのを可能にするために前記第一の材料の溶融温度よりも低い温度に前記マンドレルを加熱し、前記構造体を硬化および形成するために前記第二の材料の硬化温度よりも高い温度に前記層を加熱するように働く力を生成するために前記アパーチャを介して前記マンドレルの内部に加圧流体を導入するステップであって、
(v)前記マンドレルを溶融するために前記第一の材料の溶融温度よりも高い温度に前記マンドレルを加熱するステップと、
(vi)溶融された前記マンドレルを前記構造体から除去するステップとを備え、
(vii)ステップ(ii)が、一つ以上の開口を前記層に設けるステップであって、前記一つ以上の開口の各々が、前記マンドレルの溶融前に前記一つ以上の開口を介して前記マンドレルが除去されるのを防止するように構成されており、前記一つ以上の開口の各々が、前記マンドレルの溶融に続いて前記一つ以上の開口を介して前記マンドレルが除去されるのを可能にするように構成されているステップをさらに備える
ことを特徴とする、繊維強化の構造体の製造方法。 - 前記構造体が中空の構造体であり、ステップ(ii)において、前記層が前記マンドレルまたは前記マンドレルの一部分を囲むかまたは包み込むように設けられていることを特徴とする、請求項1に記載の製造方法。
- 前記第一の材料が熱可塑性物質であり、前記樹脂がエポキシ樹脂を備え、および/または前記繊維が炭素繊維を備えることを特徴とする請求項1または請求項2のいずれか一項に記載の製造方法。
- ステップ(iii)において、前記モールドが、前記アパーチャを前記モールドの周囲に開放したままにするように構成され、ステップ(iv)が、前記モールドをオートクレーブに配置するステップと、前記加圧流体を提供するための、および前記マンドレルおよび前記層を加熱するための、加圧および加熱された雰囲気を前記オートクレーブの内部に生成するステップとをさらに備える、請求項1から請求項3のいずれか一項に記載の製造方法。
- ステップ(iv)が、圧力管体を介して前記マンドレルの前記アパーチャを圧力源に接続するステップであって、前記圧力源が前記加圧流体を提供するとともに前記圧力管体が前記アパーチャに前記加圧流体を運ぶステップをさらに備え、
ステップ(iv)が、前記マンドレルおよび前記層を加熱するための熱を生成するオーブンに前記モールドを配置するステップをさらに備えることを特徴とする、請求項1から請求項4のいずれか一項に記載の製造方法。 - ステップ(iv)での硬化が、第一の硬化であり、前記製造方法が、(vii)前記第一の硬化の温度よりも高い温度に前記層または前記構造体を第二の硬化にさらすステップを備えることを特徴とする、請求項1から請求項5のいずれか一項に記載の製造方法。
- ステップ(vii)において第二の硬化に前記第二の材料をさらすステップが、前記層または前記構造体を170℃から200℃の温度に加熱するステップを備えることを特徴とする、請求項6に記載の製造方法。
- ステップ(ii)において、第二の材料からなる層を前記マンドレルの外面の上に設けるステップが、前記第二の材料からなる一つ以上のシートを前記マンドレルの上に貼り付けるステップを備えることを特徴とする、請求項1から請求項7のいずれか一項に記載の製造方法。
- 前記製造方法が、ステップ(iv)に先立ってまたはステップ(iv)と同時に、(ix)前記マンドレルと前記モールドとの間の前記モールドキャビティの内部にあるエアを排気するステップを備えることを特徴とする、請求項1から請求項8のいずれか一項に記載の製造方法。
- 前記製造方法が、繊維で強化されるとともに前記構造体に結合された追加の構造体を形成するように構成され、前記モールドが、追加の外面と、前記モールドの外側で前記モールドキャビティにアクセス可能にするためのギャップとを備え、ステップ(iii)が、前記モールドの前記追加の外面の上に前記第二の材料からなる追加の層を設けるステップと、前記ギャップを介して前記マンドレルの前記外面の上に設けられる層に前記追加の層を結合するステップとをさらに備えることを特徴とする、請求項1から請求項9のいずれか一項に記載の製造方法。
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EP14199259.4A EP3034263A1 (en) | 2014-12-19 | 2014-12-19 | Method for manufacturing a fibre-reinforced structure, mandrel, molding system and fibre-reinforced structure |
EP14199259.4 | 2014-12-19 | ||
PCT/EP2015/080149 WO2016097093A1 (en) | 2014-12-19 | 2015-12-17 | Fiber-reinforced structures |
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2015
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- 2015-12-17 EP EP20178259.6A patent/EP3722063A1/en not_active Withdrawn
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EP3034263A1 (en) | 2016-06-22 |
CN107405840B (zh) | 2020-08-11 |
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EP3233405A1 (en) | 2017-10-25 |
US11292213B2 (en) | 2022-04-05 |
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AU2015367435B2 (en) | 2021-01-21 |
CA2970429A1 (en) | 2016-06-23 |
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