JP2021167656A - Tank manufacturing method - Google Patents

Tank manufacturing method Download PDF

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JP2021167656A
JP2021167656A JP2020071843A JP2020071843A JP2021167656A JP 2021167656 A JP2021167656 A JP 2021167656A JP 2020071843 A JP2020071843 A JP 2020071843A JP 2020071843 A JP2020071843 A JP 2020071843A JP 2021167656 A JP2021167656 A JP 2021167656A
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fiber bundle
reinforcing layer
winding
reinforcement layer
heating jig
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隆弘 浅井
Takahiro Asai
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Toyota Motor Corp
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/32—Hydrogen storage

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Abstract

To provide a tank manufacturing method capable of suppressing peeling of a terminal of a fiber bundle to be fixed onto an outer surface of a reinforcement layer.SOLUTION: A method for manufacturing a tank comprises: a winding step of winding a fiber bundle where an outer peripheral surface of a liner is impregnated with thermosetting resin and forming a reinforcement layer; and a fixing step of fixing a terminal part of the fiber bundle to an outer surface of the reinforcement layer. The fixing step has the following in this order: bringing an end part of a heating fixture whose end part has a projection R-shape in contact with an outer surface of the reinforcement layer; fixing the terminal part of the fiber bundle to the outer surface of the reinforcement layer by causing the end part of the heating fixture to pass the terminal part of the fiber bundle in a winding direction of the fiber bundle and to relatively move the end part of the heating fixture along the outer surface of the reinforcement layer, and thus thermally hardening the thermosetting resin impregnating the terminal part of the fiber bundle; and separating the end part of the heating fixture from the surface of the reinforcement layer.SELECTED DRAWING: Figure 3

Description

本開示は、タンクの製造方法に関する。 The present disclosure relates to a method of manufacturing a tank.

水素ガス等の流体が充填されるタンクとして、流体不透過性の内殻（ライナ）と、ライナの外周に形成されている補強層とを備えるタンクが知られている。補強層は、通常は熱硬化性樹脂が含浸されたガラス繊維等の繊維束をライナの外周に巻き付けることによって形成されている。 As a tank filled with a fluid such as hydrogen gas, a tank having a fluid-impermeable inner shell (liner) and a reinforcing layer formed on the outer periphery of the liner is known. The reinforcing layer is usually formed by winding a fiber bundle such as glass fiber impregnated with a thermosetting resin around the outer periphery of the liner.

特許文献１は、ライナ外周に補強層を形成する際に、ライナの外周に繊維束をフープ巻きし、フープ巻きの終了位置において、繊維束にヒータを接触させて加熱することにより、ライナの外周面に繊維束を固定して切断することを開示している。 In Patent Document 1, when a reinforcing layer is formed on the outer periphery of the liner, a fiber bundle is hoop-wound around the outer periphery of the liner, and at the end position of the hoop winding, the fiber bundle is brought into contact with a heater to heat the outer periphery of the liner. It discloses that a fiber bundle is fixed to a surface and cut.

また、特許文献２は、ライナ外周に補強層を形成する際に、繊維束をライナの外周に巻き付けた後に、巻き終わりとなる繊維の終端部に熱風を吹き付けて、終端部を補強層の外周部に固定することを開示している。 Further, in Patent Document 2, when forming a reinforcing layer on the outer periphery of the liner, after winding the fiber bundle around the outer periphery of the liner, hot air is blown to the end portion of the fiber at the end of winding, and the end portion is formed on the outer periphery of the reinforcement layer. It discloses that it is fixed to the part.

また、特許文献３は、ライナ外周に補強層を形成する際に、補強層内に薄板を配置し、樹脂含侵繊維の巻終端を薄板に対応する位置に配置し、誘導加熱装置を用いて薄板を発熱させて、樹脂含侵繊維の巻終端を加熱固定することを開示している。 Further, in Patent Document 3, when forming a reinforcing layer on the outer periphery of the liner, a thin plate is arranged in the reinforcing layer, the winding end of the resin-impregnated fiber is arranged at a position corresponding to the thin plate, and an induction heating device is used. It is disclosed that the thin plate is heated to heat and fix the winding end of the resin-impregnated fiber.

特開２０１３−６３５８４号公報Japanese Unexamined Patent Publication No. 2013-63584 特開２０１９−１００４４５号公報Japanese Unexamined Patent Publication No. 2019-100445 特開２０１８−１２２３５号公報JP-A-2018-12235

特許文献１が開示するような、繊維束の終端にヒータを当て、熱圧着によって繊維束の終端を補強層の外表面に固定する方法では、繊維束の固定後にタンクからヒータを離隔する際に、ヒータに繊維束が貼り付いていた場合、補強層の外表面から繊維が剥がれる虞がある。また、特許文献２が開示する方法において、繊維束の終端部に熱風を当てるのみでは、繊維束の終端部と補強層の外表面との接触が不十分となり、繊維束が補強層の外表面から剥がれる虞がある。また、特許文献３が開示する方法においても、繊維束と薄板との接触が不十分である場合には、繊維束の終端部が薄板から剥がれる虞がある。 In the method disclosed in Patent Document 1, a heater is applied to the end of the fiber bundle and the end of the fiber bundle is fixed to the outer surface of the reinforcing layer by thermocompression bonding, when the heater is separated from the tank after the fiber bundle is fixed. If the fiber bundle is attached to the heater, the fiber may be peeled off from the outer surface of the reinforcing layer. Further, in the method disclosed in Patent Document 2, if only hot air is blown to the end portion of the fiber bundle, the contact between the end portion of the fiber bundle and the outer surface of the reinforcing layer becomes insufficient, and the fiber bundle becomes the outer surface of the reinforcing layer. There is a risk of peeling from. Further, even in the method disclosed in Patent Document 3, if the contact between the fiber bundle and the thin plate is insufficient, the end portion of the fiber bundle may be peeled off from the thin plate.

本開示は、繊維束の終端を補強層の外表面に固定する際に繊維束の終端部の剥がれを抑制できるタンクの製造方法を提供することを目的とする。 An object of the present disclosure is to provide a method for manufacturing a tank capable of suppressing peeling of the end portion of a fiber bundle when fixing the end of the fiber bundle to the outer surface of the reinforcing layer.

本開示者は、以下の手段により上記課題を達成することができることを見出した：
ライナの外周面に熱硬化性樹脂が含浸されている繊維束を巻き付けて補強層を形成する巻付工程と、前記繊維束の終端部を前記補強層の外表面に固定する固定工程とを有する、タンクの製造方法であって、
前記固定工程は、
先端部分が凸アール形状を有している加熱治具の前記先端部分を、前記補強層の外表面に接触させること、
前記加熱治具の前記先端部分が前記繊維束の前記終端部を前記繊維束の巻回方向に通過するようにして、前記加熱治具の前記先端部分を前記補強層の外表面に沿って相対的に移動させ、それによって前記繊維束の終端部に含浸されている前記熱硬化性樹脂を熱硬化させて、前記繊維束の終端部を前記補強層の外表面に固定すること、及び
前記加熱治具の前記先端部分を、前記補強層の表面から離れさせること、
をこの順に有している、タンクの製造方法。 The Discloser has found that the above tasks can be achieved by the following means:
It has a winding step of winding a fiber bundle impregnated with a thermosetting resin on the outer peripheral surface of the liner to form a reinforcing layer, and a fixing step of fixing the end portion of the fiber bundle to the outer surface of the reinforcing layer. , A method of manufacturing tanks
The fixing step is
The tip portion of the heating jig having a convex rounded shape is brought into contact with the outer surface of the reinforcing layer.
The tip portion of the heating jig is made to pass through the end portion of the fiber bundle in the winding direction of the fiber bundle, and the tip portion of the heating jig is relative to the outer surface of the reinforcing layer. The thermosetting resin impregnated in the end portion of the fiber bundle is thermally cured to fix the end portion of the fiber bundle to the outer surface of the reinforcing layer, and the heating. Keeping the tip of the jig away from the surface of the reinforcing layer,
A method of manufacturing a tank, which has the above in this order.

本開示によれば、繊維束の終端を補強層の外表面に固定する際に繊維束の終端部の剥がれを抑制できるタンクの製造方法を提供することができる。 According to the present disclosure, it is possible to provide a method for manufacturing a tank capable of suppressing peeling of the end portion of the fiber bundle when fixing the end end of the fiber bundle to the outer surface of the reinforcing layer.

図１は、本開示の製造方法によって製造されるタンク１０の一例を示す模式図である。FIG. 1 is a schematic view showing an example of a tank 10 manufactured by the manufacturing method of the present disclosure. 図２は、本開示の製造方法によって製造されるタンク１０の一例の、図１のＡ−Ａ’断面図である。FIG. 2 is a cross-sectional view taken along the line AA'of FIG. 1 of an example of a tank 10 manufactured by the manufacturing method of the present disclosure. 図３は、本開示の製造方法において、繊維束の終端部１５を補強層１４の外表面に固定する固定工程を示す模式図である。FIG. 3 is a schematic view showing a fixing step of fixing the end portion 15 of the fiber bundle to the outer surface of the reinforcing layer 14 in the manufacturing method of the present disclosure.

以下、本開示の実施の形態について詳述する。なお、本開示は、以下の実施の形態に限定されるのではなく、開示の本旨の範囲内で種々変形して実施できる。 Hereinafter, embodiments of the present disclosure will be described in detail. It should be noted that the present disclosure is not limited to the following embodiments, but can be variously modified and implemented within the scope of the main purpose of the disclosure.

タンクを製造する本開示の製造方法は、ライナの外周面に熱硬化性樹脂が含浸されている繊維束を巻き付けて補強層を形成する巻付工程と、繊維束の終端部を補強層の外表面に固定する固定工程とを有する、タンクの製造方法である。ここで、固定工程は、先端部分が凸アール形状を有している加熱治具の先端部分を、補強層の外表面に接触させること、加熱治具の先端部分が繊維束の終端部を繊維束の巻回方向に通過するようにして、加熱治具の先端部分を補強層の外表面に沿って相対的に移動させ、それによって繊維束の終端部に含浸されている熱硬化性樹脂を熱硬化させて、繊維束の終端部を補強層の外表面に固定すること、及び加熱治具の先端部分を、補強層の表面から離れさせること、をこの順に有している。 The manufacturing method of the present disclosure for manufacturing a tank includes a winding step of winding a fiber bundle impregnated with a thermosetting resin around the outer peripheral surface of a liner to form a reinforcing layer, and a winding step of forming a reinforcing layer at the end of the fiber bundle outside the reinforcing layer. It is a method of manufacturing a tank having a fixing step of fixing to the surface. Here, in the fixing step, the tip portion of the heating jig having a convex rounded shape is brought into contact with the outer surface of the reinforcing layer, and the tip portion of the heating jig makes the end portion of the fiber bundle a fiber. The tip of the heating jig is moved relative to the outer surface of the reinforcing layer so that it passes in the winding direction of the bundle, thereby allowing the thermosetting resin impregnated at the end of the fiber bundle to move. It is heat-cured to fix the end portion of the fiber bundle to the outer surface of the reinforcing layer, and the tip portion of the heating jig is separated from the surface of the reinforcing layer in this order.

まず、本開示の製造方法によって製造されるタンクの一例について、図１及び２を用いて説明する。なお、各図において、Ｘはタンクの軸方向、Ｙはタンクの幅方向を意味している。 First, an example of a tank manufactured by the manufacturing method of the present disclosure will be described with reference to FIGS. 1 and 2. In each figure, X means the axial direction of the tank, and Y means the width direction of the tank.

図１は、本開示の製造方法によって製造されるタンク１０の一例を示す模式図である。タンク１０は、図１に示すように、シリンダ部１１ａとシリンダ部１１ａの両端に配置されている、一対の中空の半球形状のドーム部１１ｂが一体的に構成されている本体部１１、及びドーム部１１ｂからタンクの軸方向Ｘに突出している一対の金属製の口金１２を有している。 FIG. 1 is a schematic view showing an example of a tank 10 manufactured by the manufacturing method of the present disclosure. As shown in FIG. 1, the tank 10 includes a main body 11 and a dome in which a pair of hollow hemispherical dome portions 11b, which are arranged at both ends of the cylinder portion 11a and the cylinder portion 11a, are integrally formed. It has a pair of metal bases 12 protruding from the portion 11b in the axial direction X of the tank.

ここで、本体部１１は、図１のＡ−Ａ’断面図である図２に示すように、ライナ１４とライナ１４の外周面に形成されている補強層１５とを有している。 Here, the main body 11 has a liner 14 and a reinforcing layer 15 formed on the outer peripheral surface of the liner 14, as shown in FIG. 2, which is a cross-sectional view taken along the line AA'in FIG.

ライナ１４は、ポリアミド樹脂（ＰＡ）、いわゆるナイロン（登録商標）等の高い機械的強度を有するエンジニアリングプラスチックや金属材料で形成されていることができる。 The liner 14 can be made of an engineering plastic or metal material having high mechanical strength such as polyamide resin (PA), so-called nylon (registered trademark).

また、補強層１５は、熱硬化性樹脂が含侵されている繊維束がライナ１４の外周面に巻き付けられて形成されている。ここで、繊維束は、カーボン繊維（Ｃａｒｂｏｎ Ｆｉｂｅｒ）、ガラス繊維（Ｇｌａｓｓ Ｆｉｂｅｒ）やアラミド繊維（Ａｒｏｍａｔｉｃ Ｐｏｌｙａｍｉｄｅ Ｆｉｂｅｒ）等の繊維をプラスチックの中に入れて強度を向上させた複合材料で形成されていることができる。また、繊維束は、数十本の単繊維を撚り合わせて１本の糸にした、いわゆるマルチフィラメントが、数千〜数万本程度束ねられていることができる。熱硬化性樹脂としては、エポキシ樹脂（ＥＰ）、ポリエステル樹脂（ＰＥ）やポリアミド樹脂（ＰＡ）等を挙げることができる。 Further, the reinforcing layer 15 is formed by winding a fiber bundle impregnated with a thermosetting resin around the outer peripheral surface of the liner 14. Here, the fiber bundle is formed of a composite material in which fibers such as carbon fiber (Carbon Fiber), glass fiber (Glass Fiber) and aramid fiber (Aromatic Polyamide Fiber) are put in plastic to improve the strength. be able to. Further, the fiber bundle can be a bundle of several thousand to tens of thousands of so-called multifilaments, which are obtained by twisting dozens of single fibers into one thread. Examples of the thermosetting resin include epoxy resin (EP), polyester resin (PE), and polyamide resin (PA).

タンク１０は、上記のような構成によって、気体を透過させにくい性質、いわゆるガスバリア性を有しており、内部に水素等の比較的高圧のガスを貯蔵することができる。 With the above configuration, the tank 10 has a property of making it difficult for gas to permeate, that is, a so-called gas barrier property, and can store a relatively high-pressure gas such as hydrogen inside.

なお、図１及び２は、本開示の製造方法によって製造されるタンクの一例を示すものにすぎず、本開示の発明を限定する趣旨ではない。 Note that FIGS. 1 and 2 are merely examples of tanks manufactured by the manufacturing method of the present disclosure, and are not intended to limit the invention of the present disclosure.

上記のようなタンクの製造に関して、本開示の製造方法において、固定工程は、先端部分が凸アール形状を有している加熱治具の先端部分を、補強層の外表面に接触させること、加熱治具の先端部分が繊維束の終端部を繊維束の巻回方向に通過するようにして、加熱治具の先端部分を補強層の外表面に沿って相対的に移動させ、それによって繊維束の終端部に含浸されている熱硬化性樹脂を熱硬化させて、繊維束の終端部を補強層の外表面に固定すること、及び加熱治具の先端部分を、補強層の表面から離れさせることを有している。 Regarding the manufacture of the tank as described above, in the manufacturing method of the present disclosure, in the fixing step, the tip portion of the heating jig having the tip portion having a convex rounded shape is brought into contact with the outer surface of the reinforcing layer, and heating is performed. The tip of the jig is moved relative to the outer surface of the reinforcing layer so that the tip of the jig passes through the end of the fiber bundle in the winding direction of the fiber bundle, thereby moving the tip of the heating jig relative to the outer surface of the reinforcing layer. The thermosetting resin impregnated in the terminal portion of the above is heat-cured to fix the terminal portion of the fiber bundle to the outer surface of the reinforcing layer, and to separate the tip portion of the heating jig from the surface of the reinforcing layer. Have that.

より具体的には、図３に示すように、固定工程では、まず加熱治具２０の先端部分２１を補強層１４の外表面に接触させる。そして、白い矢印で示すように、加熱治具の先端部分を繊維束の巻回方向、すなわち黒い矢印に沿った方向に動かして、繊維束の終端部を通過させる。その後、白い矢印で示すように、加熱治具２０の先端部分２１を、補強層１４の表面から離れさせる。なお、図３は本開示の製造方法の一例を示すものにすぎず、本開示の発明を限定する趣旨ではない。 More specifically, as shown in FIG. 3, in the fixing step, the tip portion 21 of the heating jig 20 is first brought into contact with the outer surface of the reinforcing layer 14. Then, as shown by the white arrow, the tip portion of the heating jig is moved in the winding direction of the fiber bundle, that is, in the direction along the black arrow, and is passed through the end portion of the fiber bundle. After that, as shown by a white arrow, the tip portion 21 of the heating jig 20 is separated from the surface of the reinforcing layer 14. Note that FIG. 3 is merely an example of the manufacturing method of the present disclosure, and is not intended to limit the invention of the present disclosure.

これにより、繊維束の終端部を補強層の外表面に押し当てつつ繊維束の先端部分に含浸されている熱硬化性樹脂を熱硬化させることができ、かつ加熱治具を補強層の外表面から離隔する際に加熱治具の先端部分に繊維束の終端部が張り付いて補強層の外表面から剥がれることを抑制することができる。 As a result, the thermosetting resin impregnated in the tip portion of the fiber bundle can be thermally cured while pressing the end portion of the fiber bundle against the outer surface of the reinforcing layer, and the heating jig can be applied to the outer surface of the reinforcing layer. It is possible to prevent the end portion of the fiber bundle from sticking to the tip end portion of the heating jig and peeling off from the outer surface of the reinforcing layer when the fiber bundle is separated from the heat jig.

したがって、本開示の製造方法によれば、繊維束の終端を補強層の外表面に固定する際に繊維束の終端部の剥がれを抑制できる。 Therefore, according to the manufacturing method of the present disclosure, peeling of the end portion of the fiber bundle can be suppressed when the end of the fiber bundle is fixed to the outer surface of the reinforcing layer.

《巻付工程》
巻付工程は、ライナの外周面に熱硬化性樹脂が含浸されている繊維束を巻き付けて補強層を形成する工程である。ライナの外周面への繊維束の巻付けは、例えばフィラメントワインディング装置によって行うことができる。 << Winding process >>
The winding step is a step of winding a fiber bundle impregnated with a thermosetting resin around the outer peripheral surface of the liner to form a reinforcing layer. The winding of the fiber bundle around the outer peripheral surface of the liner can be performed by, for example, a filament winding device.

ライナの外周面への繊維束の巻き付け方法としては、例えばヘリカル巻き又はフープ巻き等を挙げることができる。 Examples of the method of winding the fiber bundle around the outer peripheral surface of the liner include helical winding and hoop winding.

《固定工程》
固定工程は、繊維束の終端部を補強層の外表面に固定する工程である。 << Fixing process >>
The fixing step is a step of fixing the end portion of the fiber bundle to the outer surface of the reinforcing layer.

本開示の製造方法において、固定工程は、先端部分が凸アール形状を有している加熱治具の先端部分を、補強層の外表面に接触させること、加熱治具の先端部分が繊維束の終端部を繊維束の巻回方向に通過するようにして、加熱治具の先端部分を補強層の外表面に沿って相対的に移動させ、それによって繊維束の終端部に含浸されている熱硬化性樹脂を熱硬化させて、繊維束の終端部を補強層の外表面に固定すること、及び加熱治具の先端部分を、補強層の表面から離れさせることを有している。 In the manufacturing method of the present disclosure, in the fixing step, the tip portion of the heating jig having a convex rounded shape is brought into contact with the outer surface of the reinforcing layer, and the tip portion of the heating jig is a fiber bundle. The heat impregnated in the end of the fiber bundle is impregnated by moving the tip of the heating jig relative to the outer surface of the reinforcing layer so that the end passes in the winding direction of the fiber bundle. The curable resin is heat-cured to fix the end portion of the fiber bundle to the outer surface of the reinforcing layer, and to separate the tip portion of the heating jig from the surface of the reinforcing layer.

ここで、加熱治具の先端部分の、幅、厚さ、及びアールは特に限定されないが、繊維束の幅との兼ね合いによって、すなわち繊維束を補強層の外表面に十分に接触させることができるように設定するのが好ましい。 Here, the width, thickness, and radius of the tip portion of the heating jig are not particularly limited, but the fiber bundle can be sufficiently brought into contact with the outer surface of the reinforcing layer in consideration of the width of the fiber bundle. It is preferable to set it as such.

例えば、繊維束の幅が８ｍｍ〜２０ｍｍである場合には、加熱治具の先端部分は、幅が３０ｍｍ〜４０ｍｍ、厚さが１０ｍｍ〜２０ｍｍ、及びアールが５ｍｍ〜１０ｍｍであってよい。なお、加熱治具の先端部分の幅とは、加熱治具の先端部分を補強層に接触させたときの、繊維束の幅と同じ方向の長さを意味しており、加熱治具の先端部分の厚さとは、加熱治具の先端部分を補強層に接触させたときの、繊維束の長手方向と同じ方向の長さを意味しており、かつ加熱治具の先端部分のアールは、加熱治具の先端部分の厚さ方向に関するアールを意味している。 For example, when the width of the fiber bundle is 8 mm to 20 mm, the tip portion of the heating jig may have a width of 30 mm to 40 mm, a thickness of 10 mm to 20 mm, and a radius of 5 mm to 10 mm. The width of the tip portion of the heating jig means the length in the same direction as the width of the fiber bundle when the tip portion of the heating jig is brought into contact with the reinforcing layer, and the tip of the heating jig. The thickness of the portion means the length in the same direction as the longitudinal direction of the fiber bundle when the tip portion of the heating jig is brought into contact with the reinforcing layer, and the radius of the tip portion of the heating jig is It means a radius related to the thickness direction of the tip of the heating jig.

この場合において、繊維束の幅は、８ｍｍ以上、１０ｍｍ以上、又は１５ｍｍ以上であってよく、２０ｍｍ以下、１５ｍｍ以下、又は１０ｍｍ以下であってよい。 In this case, the width of the fiber bundle may be 8 mm or more, 10 mm or more, or 15 mm or more, and may be 20 mm or less, 15 mm or less, or 10 mm or less.

また、加熱治具の先端部分の幅は、３０ｍｍ以上、３２ｍｍ以上、又は３５ｍｍ以上であってよく、４０ｍｍ以下、３８ｍｍ以下、又は３５ｍｍ以下であってよい。 The width of the tip portion of the heating jig may be 30 mm or more, 32 mm or more, or 35 mm or more, and may be 40 mm or less, 38 mm or less, or 35 mm or less.

また、加熱治具の先端部分の厚さは、１０ｍｍ以上、１３ｍｍ以上、又は１５ｍｍ以上であってよく、２０ｍｍ以下、１８ｍｍ以下、又は１５ｍｍであってよい。 The thickness of the tip portion of the heating jig may be 10 mm or more, 13 mm or more, or 15 mm or more, and may be 20 mm or less, 18 mm or less, or 15 mm.

また、加熱治具の先端部分のアールは、５ｍｍ以上、６ｍｍ以上、又は７ｍｍ以上であってよく、１０ｍｍ以下、９ｍｍ以下、又は８ｍｍ以下であってよい。 Further, the radius of the tip portion of the heating jig may be 5 mm or more, 6 mm or more, or 7 mm or more, and may be 10 mm or less, 9 mm or less, or 8 mm or less.

また、固定工程を実行する際における加熱治具の先端部分の温度は、繊維束中の熱硬化性樹脂を十分に熱硬化させることができる温度であれば特に限定されないが、一般的には２００℃〜３５０℃であってよい。 The temperature of the tip of the heating jig when the fixing step is executed is not particularly limited as long as the thermosetting resin in the fiber bundle can be sufficiently heat-cured, but is generally 200. The temperature may be from ° C to 350 ° C.

固定工程を実行する際における加熱治具の先端部分の温度は、２００℃以上、２５０℃以上、又は３００℃以上であってよく、３５０℃以下、３００℃以下、又は２５０℃以下であってよい。 The temperature of the tip portion of the heating jig when the fixing step is executed may be 200 ° C. or higher, 250 ° C. or higher, or 300 ° C. or higher, and may be 350 ° C. or lower, 300 ° C. or lower, or 250 ° C. or lower. ..

また、固定工程において加熱治具の先端部分を補強層の表面から離れさせる位置は、繊維束の終端部から直線距離で１．０ｍｍ〜５．０ｍｍ離れた位置であってよい。 Further, in the fixing step, the position where the tip end portion of the heating jig is separated from the surface of the reinforcing layer may be a position separated from the end portion of the fiber bundle by a linear distance of 1.0 mm to 5.0 mm.

固定工程において加熱治具の先端部分を補強層の表面から離れさせる位置は、繊維束の終端部から直線距離で１．０ｍｍ以上、２．０ｍｍ以上、又は３．０ｍｍ以上であってよく、５．０ｍｍ以下、４．０ｍｍ以下、又は３．０ｍｍ以下であってよい。 In the fixing step, the position where the tip portion of the heating jig is separated from the surface of the reinforcing layer may be 1.0 mm or more, 2.0 mm or more, or 3.0 mm or more in a straight line distance from the end portion of the fiber bundle. It may be 0.0 mm or less, 4.0 mm or less, or 3.0 mm or less.

《その他の工程》
本開示の製造方法は、巻付工程及び固定工程の前に、ライナや繊維束等を提供するための準備工程、並びに巻付工程及び固定工程の後に、補強層を構成している繊維束中の熱硬化性樹脂を熱硬化させるための熱硬化工程、及び検査工程等の次工程等を更に有していることができる。 << Other processes >>
The manufacturing method of the present disclosure includes a preparatory step for providing a liner, a fiber bundle, etc. before the winding step and the fixing step, and a fiber bundle forming a reinforcing layer after the winding step and the fixing step. It is possible to further have a thermosetting step for thermosetting the thermosetting resin of the above, a next step such as an inspection step, and the like.

１０ ボトル
１１ 本体部
１１ａ シリンダ部
１１ｂ ドーム部
１２ 口金
１３ ライナ
１４ 補強層
１５ 繊維束の終端部
２０ 加熱治具
２１ 先端部分 10 Bottle 11 Main body 11a Cylinder 11b Dome 12 Base 13 Liner 14 Reinforcing layer 15 Fiber bundle end 20 Heating jig 21 Tip

Claims (1)

ライナの外周面に熱硬化性樹脂が含浸されている繊維束を巻き付けて補強層を形成する巻付工程と、前記繊維束の終端部を前記補強層の外表面に固定する固定工程とを有する、タンクの製造方法であって、
前記固定工程は、
先端部分が凸アール形状を有している加熱治具の前記先端部分を、前記補強層の外表面に接触させること、
前記加熱治具の前記先端部分が前記繊維束の前記終端部を前記繊維束の巻回方向に通過するようにして、前記加熱治具の前記先端部分を前記補強層の外表面に沿って相対的に移動させ、それによって前記繊維束の終端部に含浸されている前記熱硬化性樹脂を熱硬化させて、前記繊維束の終端部を前記補強層の外表面に固定すること、及び
前記加熱治具の前記先端部分を、前記補強層の表面から離れさせること、
をこの順に有している、タンクの製造方法。 It has a winding step of winding a fiber bundle impregnated with a thermosetting resin on the outer peripheral surface of the liner to form a reinforcing layer, and a fixing step of fixing the end portion of the fiber bundle to the outer surface of the reinforcing layer. , A method of manufacturing tanks
The fixing step is
The tip portion of the heating jig having a convex rounded shape is brought into contact with the outer surface of the reinforcing layer.
The tip portion of the heating jig is made to pass through the end portion of the fiber bundle in the winding direction of the fiber bundle, and the tip portion of the heating jig is relative to the outer surface of the reinforcing layer. The thermosetting resin impregnated in the end portion of the fiber bundle is thermally cured to fix the end portion of the fiber bundle to the outer surface of the reinforcing layer, and the heating. Keeping the tip of the jig away from the surface of the reinforcing layer,
A method of manufacturing a tank, which has the above in this order.
JP2020071843A 2020-04-13 2020-04-13 Tank manufacturing method Pending JP2021167656A (en)

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