JP6254564B2 - タンクの製造方法およびタンク - Google Patents
タンクの製造方法およびタンク Download PDFInfo
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- JP6254564B2 JP6254564B2 JP2015225307A JP2015225307A JP6254564B2 JP 6254564 B2 JP6254564 B2 JP 6254564B2 JP 2015225307 A JP2015225307 A JP 2015225307A JP 2015225307 A JP2015225307 A JP 2015225307A JP 6254564 B2 JP6254564 B2 JP 6254564B2
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- B29C70/06—Fibrous reinforcements only
- B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
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Description
<第1実施形態>
1.タンク1について
まず、本発明の第1実施形態に係るタンクについて、図1(a),(b)および図2(a),(b)を参照しながら、説明する。図1(a)は、本発明の第1実施形態に係るタンク1の模式的断面図であり、図1(b)は、図1(a)のA部の拡大図である。図2(a)は、図1に示すタンク1のB−B矢視断面図であり、図2(b)は、図2(a)に示す断面図における強化繊維の状態を示した模式的概念図である。なお、図2(a)に示すA−A矢視断面図は、タンク1の軸心CLと直交した断面である。
以下に、タンク1の製造方法(シートワインディング法)を、従来の方法(フィラメントワインディング法)と対比して説明する。図3は、図1に示すタンク1の製造方法の一部を説明するための模式的斜視図である。図4(a)〜(c)は、図1(a)に示すタンク1の製造方法を説明するための模式的断面図である。図5(a)は、従来のタンクの製造方法の一部を説明するための模式的斜視図であり、図5(b)は、従来のタンクの胴体部の部分的拡大断面図である。
以下に、本発明の第2実施形態に係るタンク1’を図6(a)および図6(b)を参照しながら説明し、タンク1’の製造方法を、図7(a)〜図7(c)を参照しながら説明する。図6(a)は、本発明の第2実施形態に係るタンク1’の模式的断面図であり、図6(b)は、図6(a)のC部の拡大図である。図7(a)〜図7(c)は、図6(a)に示すタンク1’の製造方法を説明するための模式的断面図である。
本実施例では、第2実施形態に示す方法(シートワインディング法)により、筒状成形体を成形した。具体的には、炭素繊維(強化繊維)に、ナイロン樹脂(熱可塑性樹脂)を含浸した、幅300mm、厚さ40μmの繊維強化樹脂シートを準備した。この繊維強化樹脂シートを、熱可塑性樹脂の軟化点温度以上(230℃)に加熱して、熱可塑性樹脂を溶融し、芯材の周面に複数回巻き付けて、筒状成形体を成形した。
実施例と同様の形状の筒状成形体を成形した。具体的には、炭素繊維(強化繊維)にエポキシ樹脂(熱硬化性樹脂)を含浸した、幅10mm、厚さ240μmの幅の狭い繊維強化樹脂を準備し、図5(a)に示す方法(フィラメントワインディング法)で、繊維強化樹脂を芯材に巻き付けた。その後、エポキシ樹脂を加熱して硬化させ、筒状成形体を成形した。
図8(a),(b)に示すように、実施例では、筒状成形体には、ボイドが発生していなかったが、比較例に係る筒状成形体には、ボイドが発生していた。これは、本実施形態で説明したように、実施例では、シートワインディング法により、フープ巻で筒状成形体を成形したことによると考えられる。
Claims (7)
- 筒状の胴体部と、該胴体部の両側に形成されたドーム状の側端部と、を備えたタンクの製造方法であって、
前記タンクの製造方法は、強化繊維に熱可塑性樹脂が含浸された繊維強化樹脂シートを、前記熱可塑性樹脂が溶融した状態で、芯材の軸心に対して直交する方向から前記芯材の周面に複数回巻き付けることにより、前記胴体部の少なくとも一部となる筒状成形体を、1枚の前記繊維強化樹脂シートから成形する工程を含み、
前記熱可塑性樹脂を予め含浸した前記繊維強化樹脂シートを準備し、前記筒状成形体を成形する工程において、前記芯材に前記繊維強化樹脂シートを巻き付ける前に、前記熱可塑性樹脂を軟化点以上に加熱し、前記熱可塑性樹脂が溶融した状態で、前記繊維強化シートを複数回巻き付けることを特徴とするタンクの製造方法。 - 前記繊維強化樹脂シートとして、前記強化繊維が一方向に沿って引き揃えられた繊維強化樹脂シートを用い、
前記筒状成形体を成形する工程において、前記強化繊維が前記芯材の軸心に対して直交した断面で複数回周回するように、前記繊維強化樹脂シートを前記芯材の周面に巻き付けることを特徴とする請求項1に記載のタンクの製造方法。 - 前記筒状成形体を成形後、前記筒状成形体を前記芯材から引き抜くことにより、前記胴体部に相当する胴体を製造することを特徴とする請求項1または2に記載のタンクの製造方法。
- 前記タンクの製造方法は、前記熱可塑性樹脂を主材としたドーム状の側端部材と、前記筒状成形体との少なくとも一方を加熱し、前記筒状成形体に前記側端部材を融着させることにより、前記タンクに前記側端部を形成する工程をさらに含むことを特徴とする請求項1〜3のいずれか一項に記載のタンクの製造方法。
- 筒状の胴体部と、該胴体部の両側に形成されたドーム状の側端部と、を備えたタンクであって、
前記タンクには、前記胴体部と前記側端部により、水素ガスを収容する収容空間が形成されており、
前記胴体部は、強化繊維に熱可塑性樹脂を含浸したシート状の繊維強化樹脂層からなる筒状成形部であり、前記筒状成形部には、前記収容空間に面した位置に前記繊維強化樹脂層が形成されており、
前記繊維強化樹脂層は、前記胴体部の両側に亘って形成され、かつ、前記胴体部の軸心に対して直交する方向に複数回周回していることを特徴とするタンク。 - 前記強化繊維は、前記胴体部の周方向に沿って引き揃えられ、かつ、前記胴体部の軸心に対して直交した断面で複数回周回していることを特徴とする請求項5に記載のタンク。
- 前記側端部は、主材として熱可塑性樹脂を含み、前記タンクは、前記筒状成形部と前記側端部とが接合していることを特徴とする請求項5または6に記載のタンク。
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JP6614225B2 (ja) | 2017-10-31 | 2019-12-04 | トヨタ自動車株式会社 | タンクの製造方法およびタンク |
CN108870062A (zh) * | 2018-06-07 | 2018-11-23 | 浙江大学 | 一种变刚度变强度复合材料高压气瓶缠绕方法 |
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JP7259734B2 (ja) | 2019-12-25 | 2023-04-18 | トヨタ自動車株式会社 | 高圧タンクの製造方法 |
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JP7287293B2 (ja) * | 2020-01-30 | 2023-06-06 | トヨタ自動車株式会社 | 高圧タンクの製造方法 |
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US20230134272A1 (en) * | 2020-03-26 | 2023-05-04 | Toray Industries, Inc. | Tank |
JP7439687B2 (ja) | 2020-07-31 | 2024-02-28 | トヨタ自動車株式会社 | 高圧タンク |
JP7347362B2 (ja) * | 2020-08-03 | 2023-09-20 | トヨタ自動車株式会社 | 補強層の製造方法 |
JP7384142B2 (ja) | 2020-10-09 | 2023-11-21 | トヨタ自動車株式会社 | 高圧タンクの製造方法 |
JP7359167B2 (ja) | 2021-01-26 | 2023-10-11 | トヨタ自動車株式会社 | 高圧タンクおよび高圧タンクの製造方法 |
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