JP2015193088A - composite structure - Google Patents
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- JP2015193088A JP2015193088A JP2014071118A JP2014071118A JP2015193088A JP 2015193088 A JP2015193088 A JP 2015193088A JP 2014071118 A JP2014071118 A JP 2014071118A JP 2014071118 A JP2014071118 A JP 2014071118A JP 2015193088 A JP2015193088 A JP 2015193088A
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Description
本発明は、複合構造体に関する。特に、本発明は、塔槽、ダクト等の配管部材、建築用構造部材の素材として好適な複合構造体に関する。 The present invention relates to a composite structure. In particular, the present invention relates to a composite structure suitable as a material for piping members such as tower tanks and ducts and structural members for construction.
従来、塔槽に耐腐食性・耐薬品性を持たせるために、一般構造用圧延鋼材（ＳＳ）等の金属からなる塔槽の内面にゴムやＦＲＰ等の耐食材料を内貼りしたものが知られている。そして、金属に樹脂を強固に接合する方法としては、例えば、特許文献１に開示された方法が知られている。 Conventionally, in order to give corrosion resistance and chemical resistance to the tower tank, it is known that a corrosion resistant material such as rubber or FRP is internally attached to the inner surface of the tower tank made of metal such as general structural rolled steel (SS). It has been. For example, a method disclosed in Patent Document 1 is known as a method for firmly bonding a resin to a metal.
しかし、上記従来の塔槽にあっては、接液部以外がＳＳ等の金属であるために、雰囲気による腐食が発生していた。また、オール樹脂製の塔槽では、使用環境によっては経年劣化により強度が低下するという問題があった。 However, in the above conventional tower tank, since the metal other than the liquid contact portion is a metal such as SS, corrosion due to the atmosphere has occurred. In addition, the all-resin tower tank has a problem that the strength decreases due to aging depending on the use environment.
本発明は、従来技術における前記課題を解決するためになされたものであり、強度が高く、耐腐食性・耐薬品性にも優れた、塔槽の素材として好適な複合構造体を提供することを目的とする。 The present invention has been made to solve the above-described problems in the prior art, and provides a composite structure suitable as a raw material for a tower tank having high strength and excellent corrosion resistance and chemical resistance. With the goal.
前記目的を達成するため、本発明に係る複合構造体の構成は、
（１）芯材を熱可塑性樹脂からなる第１及び第２の被覆材によってサンドイッチした複合構造体であって、
前記第１の被覆材に設けられた第１貫通孔と、
前記芯材に、前記第１貫通孔と連通するように設けられた第２貫通孔と、
前記第２の被覆材の、前記芯材と対向する面に、前記第２貫通孔と連通するように設けられた有底孔と、
ひと組の前記第１及び第２貫通孔並びに前記有底孔からなる充填孔に充填され、かつ、少なくとも前記第１貫通孔及び有底孔の内周面に接合された、熱可塑性樹脂からなる充填部材と、を備えたことを特徴とする。
In order to achieve the above object, the structure of the composite structure according to the present invention is:
(1) A composite structure in which a core material is sandwiched between first and second coating materials made of a thermoplastic resin,
A first through hole provided in the first covering material;
A second through hole provided in the core member so as to communicate with the first through hole;
A bottomed hole provided on the surface of the second covering material facing the core material so as to communicate with the second through hole;
It is made of a thermoplastic resin that is filled in a set of the first and second through holes and the bottomed hole and is joined to at least the inner peripheral surface of the first through hole and the bottomed hole. And a filling member.
本発明の複合構造体の上記（１）の構成によれば、芯材は、面方向への移動が規制された状態で第１及び第２の被覆材によってサンドイッチされ、前記第１及び第２の被覆材は互いに強固に連結される。そして、このように、芯材を熱可塑性樹脂からなる第１及び第２の被覆材によってサンドイッチしたことにより、異種材との複合による高機能化を図ることが可能な複合構造体を提供することができる。特に、芯材を適切に選ぶことにより、全体の強度を高めることができるので、強度が高く、耐腐食性・耐薬品性にも優れた、塔槽を含めた配管部材の素材として好適な複合構造体を提供することが可能となる。 According to the configuration of (1) of the composite structure of the present invention, the core material is sandwiched between the first and second coating materials in a state where movement in the surface direction is restricted, and the first and second coating materials are sandwiched between the first and second coating materials. The covering materials are firmly connected to each other. And providing a composite structure which can achieve high functionality by compounding with a different kind of material by sandwiching the core material with the first and second coating materials made of thermoplastic resin in this way. Can do. In particular, by selecting the core material appropriately, the overall strength can be increased, so the composite is suitable as a material for piping members including tower tanks, which has high strength and excellent corrosion resistance and chemical resistance. A structure can be provided.
本発明の複合構造体の上記（１）の構成においては、以下の（２）〜（７）のような構成にすることが好ましい。 In the configuration (1) of the composite structure of the present invention, the following configurations (2) to (7) are preferable.
（２）前記芯材は、高強度材からなる。高強度材としては、例えば、一般構造用圧延鋼材（ＳＳ）等の金属を用いることができる。 (2) The core material is made of a high strength material. As the high strength material, for example, a metal such as a general structural rolled steel (SS) can be used.
上記（２）の好ましい構成によれば、強度の高い複合構造体を提供することができる。特に、高強度材としてＳＳ等の金属を用いれば、設計形状の自由度の高い複合構造体を提供することができる。そして、この複合構造体を用いて、塔槽、特に蓋を作製することにより、厳しい環境下でも長期間高強度を保つことができる。 According to the preferable configuration of (2) above, it is possible to provide a composite structure having high strength. In particular, when a metal such as SS is used as the high-strength material, a composite structure having a high degree of freedom in design shape can be provided. And by using this composite structure, a high strength can be maintained for a long time even in a severe environment by producing a tower tank, particularly a lid.
（３）前記複合構造体は、外周面に露出した前記芯材を覆うようにして前記第１及び第２の被覆材に接合された、熱可塑性樹脂からなる周面部材をさらに備えている。 (3) The composite structure further includes a peripheral member made of a thermoplastic resin joined to the first and second covering members so as to cover the core material exposed on the outer peripheral surface.
上記（３）の好ましい構成によれば、芯材を熱可塑性樹脂によって完全に密封することができる。従って、上記（３）の好ましい構成によれば、耐腐食性・耐薬品性を向上させて、塔槽の素材としてより好適な複合構造体を提供することが可能となる。 According to the preferable configuration of (3), the core material can be completely sealed with the thermoplastic resin. Therefore, according to the preferable configuration of the above (3), it is possible to improve the corrosion resistance and chemical resistance and to provide a composite structure more suitable as a material for the tower tank.
（４）前記充填孔が複数形成されており、前記複数の充填孔は、任意の充填孔と当該任意の充填孔の最近傍に位置する複数の他の充填孔との距離が互いに等しくなるように配列されている。 (4) A plurality of the filling holes are formed, and the plurality of filling holes are arranged such that the distances between an arbitrary filling hole and a plurality of other filling holes located nearest to the arbitrary filling hole are equal to each other. Is arranged.
上記（４）の好ましい構成によれば、複数の充填孔を均等に配列することができる。その結果、充填孔に充填部材を充填して第１及び第２の被覆材を連結した場合に、芯材の全体に均一に力が掛かるようにすることができるので、応力の集中を抑えることが可能となる。 According to the preferable configuration of (4) above, the plurality of filling holes can be evenly arranged. As a result, when the filling member is filled in the filling hole and the first and second covering materials are connected, it is possible to apply a force uniformly to the entire core material, thereby suppressing stress concentration. Is possible.
（５）前記充填孔が複数形成されており、前記複数の充填孔は、前記充填孔同士を結ぶ直線を一辺とする正方形の頂点に配置されている。 (5) A plurality of the filling holes are formed, and the plurality of filling holes are arranged at a vertex of a square having a straight line connecting the filling holes as one side.
（６）上記（５）の構成において、前記正方形の対角線の交点に前記充填孔がさらに配置されている。 (6) In the configuration of (5), the filling hole is further arranged at the intersection of the square diagonal lines.
上記（５）又は（６）の好ましい構成によっても、複数の充填孔を均等に配列することができる。その結果、充填孔に充填部材を充填して第１及び第２の被覆材を連結した場合に、芯材の全体に均一に力が掛かるようにすることができるので、応力の集中を抑えることが可能となる。 Also by the preferable configuration of (5) or (6), the plurality of filling holes can be evenly arranged. As a result, when the filling member is filled in the filling hole and the first and second covering materials are connected, it is possible to apply a force uniformly to the entire core material, thereby suppressing stress concentration. Is possible.
（７）上記（４）、（５）の構成において、前記複数の充填孔は、３５０ｍｍ以上１０００ｍｍ以下のピッチで配列されている。 (7) In the configurations of (4) and (5), the plurality of filling holes are arranged at a pitch of 350 mm or more and 1000 mm or less.
上記（７）の好ましい構成によれば、充填部材の充填作業を軽減しつつ、第１及び第２の被覆材のうねりを目立たなくすることができる。 According to the preferable configuration of (7) above, the swell of the first and second covering materials can be made inconspicuous while reducing the filling operation of the filling member.
本発明によれば、強度が高く、耐腐食性・耐薬品性にも優れた、塔槽の素材として好適な複合構造体を提供することが可能となる。 ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to provide the composite structure suitable as a raw material of a tower tank with high intensity | strength and excellent in corrosion resistance and chemical resistance.
以下、好適な実施の形態を用いて本発明をさらに具体的に説明する。但し、下記の実施の形態は本発明を具現化した例に過ぎず、本発明はこれに限定されるものではない。 Hereinafter, the present invention will be described more specifically with reference to preferred embodiments. However, the following embodiments are merely examples embodying the present invention, and the present invention is not limited thereto.
［複合構造体の構成］
まず、本発明の一実施の形態における複合構造体の構成について、図１〜図６を参照しながら説明する。
[Composition of composite structure]
First, the structure of the composite structure in one embodiment of the present invention will be described with reference to FIGS.
図１は、本発明の一実施の形態における複合構造体の構成を示す断面図、図２は、当該複合構造体の構成を示す分解断面図、図３は、当該複合構造体の、充填部材が充填される前の構成を示す分解断面図、図４は、当該複合構造体の外周面に周面部材を取り付けた状態を示す断面図、図５は、当該複合構造体の充填孔の配列の例を示す平面図、図６は、最長固定間距離を説明するための図である。 FIG. 1 is a cross-sectional view showing the structure of a composite structure according to an embodiment of the present invention, FIG. 2 is an exploded cross-sectional view showing the structure of the composite structure, and FIG. 3 is a filling member of the composite structure. FIG. 4 is a sectional view showing a state in which a peripheral member is attached to the outer peripheral surface of the composite structure, and FIG. 5 is an array of filling holes in the composite structure. FIG. 6 is a diagram for explaining the longest fixed distance.
図１〜図３に示すように、本実施の形態の複合構造体１は、平板状の芯材２を熱可塑性樹脂からなる平板状の第１及び第２の被覆材３、４によってサンドイッチした複合構造体である。芯材２の一方の面を覆う第１の被覆材３には、円筒状の第１貫通孔３ａが穿設されている。また、芯材２には、第１貫通孔３ａと連通するように円筒状の第２貫通孔２ａが穿設されている。さらに、芯材２の他方の面を覆う第２の被覆材４の、芯材２と対向する面には、第２貫通孔２ａと連通するように円筒状の有底孔４ａが穿設されている。そして、ひと組の第１及び第２貫通孔３ａ、２ａ並びに有底孔４ａからなる充填孔１６には、第１及び第２の被覆材３、４と同じ材料（熱可塑性樹脂）からなる円柱状（棒状）の充填部材５が充填されており、当該充填部材５は、第１貫通孔３ａ及び有底孔４ａの内周面に融着されている。これにより、芯材２は、面方向への移動が規制された状態で第１及び第２の被覆材３、４によってサンドイッチされ、第１及び第２の被覆材３、４は互いに強固に連結される。ここで、充填部材５が充填される充填孔１６は、複数形成されている。 As shown in FIGS. 1 to 3, in the composite structure 1 of the present embodiment, a flat core material 2 is sandwiched between flat first and second covering materials 3 and 4 made of thermoplastic resin. It is a composite structure. A cylindrical first through hole 3 a is formed in the first covering material 3 that covers one surface of the core material 2. The core material 2 is provided with a cylindrical second through hole 2a so as to communicate with the first through hole 3a. Furthermore, a cylindrical bottomed hole 4a is formed on the surface of the second covering material 4 that covers the other surface of the core material 2 so as to communicate with the second through hole 2a. ing. The filling hole 16 including the first and second through holes 3a and 2a and the bottomed hole 4a is a circle made of the same material (thermoplastic resin) as the first and second covering materials 3 and 4. A columnar (bar-shaped) filling member 5 is filled, and the filling member 5 is fused to the inner peripheral surfaces of the first through hole 3a and the bottomed hole 4a. As a result, the core material 2 is sandwiched between the first and second coating materials 3 and 4 in a state where movement in the surface direction is restricted, and the first and second coating materials 3 and 4 are firmly connected to each other. Is done. Here, a plurality of filling holes 16 filled with the filling member 5 are formed.
本実施の形態の複合構造体１の構成によれば、芯材２を熱可塑性樹脂からなる第１及び第２の被覆材３、４によってサンドイッチしたことにより、異種材との複合による高機能化を図ることが可能な複合構造体を提供することができる。特に、芯材２を適切に選ぶことにより、全体の強度を高めることができるので、強度が高く、耐腐食性・耐薬品性にも優れた、塔槽を含めた配管部材の素材として好適な複合構造体を提供することが可能となる。 According to the configuration of the composite structure 1 of the present embodiment, the core material 2 is sandwiched between the first and second covering materials 3 and 4 made of thermoplastic resin, so that high functionality is achieved by combining with different materials. A composite structure capable of achieving the above can be provided. In particular, since the overall strength can be increased by appropriately selecting the core material 2, it is suitable as a material for piping members including tower tanks having high strength and excellent corrosion resistance and chemical resistance. It becomes possible to provide a composite structure.
熱可塑性樹脂としては、例えば、ポリプロピレン（ＰＰ）、ポリエチレン（ＰＥ）、ポリ塩化ビニル（ＰＶＣ）、塩素化ポリ塩化ビニル（ＰＶＣ−Ｃ）、ポリスチレン（ＰＳ）、ポリカーボネート（ＰＣ）、アクリロニトリルブタジエンスチレン樹脂（ＡＢＳ樹脂）、ポリフッ化ビニリデン（ＰＶＤＦ）、ポリテトラフルオロエチレン（ＰＴＦＥ）、ポリフェニレンオキサイド（ＰＰＯ）、ポリフェニレンエーテル（ＰＰＥ）等を用いることができる。さらに、ポリ塩化ビニル（ＰＶＣ）には硬質ポリ塩化ビニル、硬質耐衝撃性ポリ塩化ビニルも含まれる。 Examples of the thermoplastic resin include polypropylene (PP), polyethylene (PE), polyvinyl chloride (PVC), chlorinated polyvinyl chloride (PVC-C), polystyrene (PS), polycarbonate (PC), and acrylonitrile butadiene styrene resin. (ABS resin), polyvinylidene fluoride (PVDF), polytetrafluoroethylene (PTFE), polyphenylene oxide (PPO), polyphenylene ether (PPE), and the like can be used. Further, polyvinyl chloride (PVC) includes hard polyvinyl chloride and hard impact-resistant polyvinyl chloride.
芯材２は、高強度材からなることが好ましい。高強度材としては、例えば、一般構造用圧延鋼材（ＳＳ）等の金属を用いることができる。この好ましい構成によれば、強度の高い複合構造体１を提供することができる。特に、高強度材としてＳＳ等の金属を用いれば、設計形状の自由度の高い複合構造体１を提供することができる。そして、この複合構造体１を用いて、塔槽、特に蓋を作製することにより、厳しい環境下でも長期間高強度を保つことが可能となる。 The core material 2 is preferably made of a high strength material. As the high strength material, for example, a metal such as a general structural rolled steel (SS) can be used. According to this preferable structure, the composite structure 1 with high strength can be provided. In particular, when a metal such as SS is used as the high-strength material, the composite structure 1 having a high degree of freedom in design shape can be provided. Then, by using this composite structure 1 to produce a tower tank, in particular, a lid, it is possible to maintain high strength for a long time even in a severe environment.
図４に示すように、複合構造体１は、外周面に露出した芯材２を覆うようにして第１及び第２の被覆材３、４に融着された周面部材６をさらに備えている。ここで、周面部材６は、第１及び第２の被覆材３、４と同じ材料（熱可塑性樹脂）からなる。 As shown in FIG. 4, the composite structure 1 further includes a peripheral surface member 6 fused to the first and second covering materials 3 and 4 so as to cover the core material 2 exposed on the outer peripheral surface. Yes. Here, the peripheral surface member 6 is made of the same material (thermoplastic resin) as the first and second covering materials 3 and 4.
かかる構成によれば、芯材２を熱可塑性樹脂によって完全に密封することができる。従って、かかる構成によれば、耐腐食性・耐薬品性を向上させて、塔槽の素材としてより好適な複合構造体を提供することが可能となる。 According to such a configuration, the core material 2 can be completely sealed with the thermoplastic resin. Therefore, according to this configuration, it is possible to improve the corrosion resistance and chemical resistance and to provide a composite structure that is more suitable as a material for the tower tank.
複数の充填孔１６は、任意の充填孔１６と当該任意の充填孔１６の最近傍に位置する複数の他の充填孔１６との距離が互いに等しくなるように配列されていることが好ましい。例えば、複数の充填孔１６は、図５（ａ）に示すように配列されていることが好ましい。この好ましい構成によれば、複数の充填孔１６を均等に配列することができる。その結果、充填孔１６に充填部材５を充填して第１及び第２の被覆材３、４を連結した場合に、芯材２の全体に均一に力が掛かるようにすることができるので、応力の集中を抑えることが可能となる。 The plurality of filling holes 16 are preferably arranged so that the distances between the arbitrary filling hole 16 and the plurality of other filling holes 16 located in the vicinity of the arbitrary filling hole 16 are equal to each other. For example, the plurality of filling holes 16 are preferably arranged as shown in FIG. According to this preferred configuration, the plurality of filling holes 16 can be evenly arranged. As a result, when the filling member 5 is filled in the filling hole 16 and the first and second covering materials 3 and 4 are connected, it is possible to apply a uniform force to the entire core material 2. It is possible to suppress stress concentration.
また、複数の充填孔１６は、充填孔１６同士を結ぶ直線を一辺とする正方形の頂点に配置されていることが好ましい。さらには、正方形の対角線の交点にも充填孔１６が配置されていることが好ましい。例えば、複数の充填孔１６は、図５（ｂ）に示すように配列されていることが好ましい。これらの好ましい構成によっても、複数の充填孔１６を均等に配列することができる。その結果、充填孔１６に充填部材５を充填して第１及び第２の被覆材３、４を連結した場合に、芯材２の全体に均一に力が掛かるようにすることができるので、応力の集中を抑えることが可能となる。 Further, the plurality of filling holes 16 are preferably arranged at the apexes of a square having a straight line connecting the filling holes 16 as one side. Furthermore, it is preferable that the filling holes 16 are also arranged at intersections of square diagonal lines. For example, the plurality of filling holes 16 are preferably arranged as shown in FIG. Also with these preferable configurations, the plurality of filling holes 16 can be evenly arranged. As a result, when the filling member 5 is filled in the filling hole 16 and the first and second covering materials 3 and 4 are connected, it is possible to apply a uniform force to the entire core material 2. It is possible to suppress stress concentration.
以下においては、芯材２が一般構造用圧延鋼材（ＳＳ４００）からなり、第１及び第２の被覆材３、４並びに充填部材５及び周面部材６がポリプロピレン（ＰＰ）からなる場合を例に挙げて説明する。 Below, the core material 2 consists of a general structural rolled steel material (SS400), and the case where the 1st and 2nd coating | covering materials 3, 4 and the filling member 5 and the surrounding surface member 6 consist of polypropylenes (PP) is taken as an example. I will give you a description.
上記の構成を備えた複合構造体１において、芯材（金属プレート）２は、第１及び第２の被覆材（樹脂プレート）３、４並びに充填部材５及び周面部材６によって密封されているだけで、これらと完全には接合されていないため、その中で移動可能である。従って、芯材２が充填部材（ＰＰ丸棒）５と接触しても、他の充填部材５によって移動が制限されない限り、芯材２に応力が発生することはない。そのため、複合構造体（サンドイッチプレート）１の４分の１のエリアを考慮すれば、熱を受けて第１及び第２の被覆材３、４が伸縮しても、充填部材５と芯材２が接触せずに応力が発生しない芯材２の第２貫通孔２ａの径を設計することができる。 In the composite structure 1 having the above-described configuration, the core material (metal plate) 2 is sealed by the first and second covering materials (resin plates) 3 and 4, the filling member 5, and the peripheral surface member 6. Just because they are not fully joined with them, they can move within them. Therefore, even if the core material 2 comes into contact with the filling member (PP round bar) 5, no stress is generated in the core material 2 unless the movement is restricted by another filling member 5. Therefore, considering a quarter area of the composite structure (sandwich plate) 1, even if the first and second covering materials 3, 4 expand and contract due to heat, the filling member 5 and the core material 2. The diameter of the 2nd through-hole 2a of the core material 2 which does not generate | occur | produce a stress without contacting can be designed.
芯材２の第２貫通孔２ａの径（金属プレート（ＳＳ４００）の孔径）φｄは、下記（数１）によって計算される。
［数１］
φｄ＝φＤ＋（α×ΔＴ×Ｌ）×Ｓ
α：樹脂の線膨張係数
Ｌ：最長固定間距離
Ｓ：安全率
ΔＴ：温度差（塔槽などの内部の液温と外部の気温の差等）
φＤ：充填部材（ＰＰ丸棒）の径
The diameter (hole diameter of the metal plate (SS400)) φd of the second through hole 2a of the core material 2 is calculated by the following (Equation 1).
[Equation 1]
φd = φD + (α × ΔT × L) × S
α: Linear expansion coefficient of resin
L: Longest fixed distance
S: Safety factor ΔT: Temperature difference (difference between the internal liquid temperature of the tower tank etc. and the external temperature)
φD: Diameter of filling member (PP round bar)
ここで、最長固定間距離Ｌとは、複合構造体１の中心近傍の充填孔１６から最も離れた充填孔１６までの距離のことであり、複合構造体１の形状及び大きさなどによって異なる（図６参照）。 Here, the longest fixed distance L is a distance from the filling hole 16 in the vicinity of the center of the composite structure 1 to the farthest filling hole 16 and varies depending on the shape and size of the composite structure 1 ( (See FIG. 6).
下記（表１）〜（表４）に、上記（数１）によって計算した結果を示す。 The following (Table 1) to (Table 4) show the results calculated by the above (Equation 1).
上記（表１）〜（表４）の結果に基づいて、芯材２の第２貫通孔２ａの径（金属プレートの孔径）を設定すれば、熱を受けて第１及び第２の被覆材３、４が伸縮しても、充填部材５と芯材２が接触せずに応力が発生しない複合構造体１を提供することが可能となる。 Based on the results of the above (Table 1) to (Table 4), if the diameter of the second through hole 2a of the core material 2 (hole diameter of the metal plate) is set, the first and second coating materials receive heat and receive heat. It is possible to provide the composite structure 1 in which stress does not occur because the filling member 5 and the core material 2 do not come into contact with each other even if the members 3 and 4 expand and contract.
隣接する充填孔１６間のピッチが３００ｍｍ以下であると、高温（ΔＴが７０℃以上）時に芯材２と第１及び第２の被覆材３、４の接触部の応力が許容応力以上となり、ピッチが１５００ｍｍ以上であると、ピッチ間の第１及び第２の被覆材３、４のうねりが大きくなってしまう。ピッチが３５０ｍｍ以下の場合には充填部材の充填作業が多くなるため、ピッチは３５０ｍｍ以上であることが好ましい。また、第１及び第２の被覆材３、４のうねりを見た目で目立たなくするためには、ピッチは１０００ｍｍ以下であることが好ましい。 When the pitch between the adjacent filling holes 16 is 300 mm or less, the stress at the contact portion between the core material 2 and the first and second coating materials 3 and 4 at the high temperature (ΔT is 70 ° C. or more) becomes an allowable stress or more. When the pitch is 1500 mm or more, the waviness of the first and second covering materials 3 and 4 between the pitches becomes large. When the pitch is 350 mm or less, the filling operation of the filling member increases, and therefore the pitch is preferably 350 mm or more. Moreover, in order to make the first and second covering materials 3 and 4 unobtrusive, the pitch is preferably 1000 mm or less.
［複合構造体の製造方法］
次に、本発明の一実施の形態における複合構造体の製造方法について、図７〜図１１をも参照しながら説明する。
[Production method of composite structure]
Next, the manufacturing method of the composite structure in one embodiment of the present invention will be described with reference to FIGS.
図７は、本発明の一実施の形態における複合構造体の製造方法に用いられる融着用ヒータを示す断面図、図８は、当該融着用ヒータの使用方法を示す断面図、図９は、本発明の一実施の形態における複合構造体の製造方法の第１工程（芯材を第１及び第２の被覆材によってサンドイッチする工程）を示す断面図、図１０は、当該複合構造体の製造方法の第２工程（周面部材を取り付ける工程）を示す断面図、図１１は、当該複合構造体の製造方法の第３工程（充填部材を充填する工程）を示す断面図である。 FIG. 7 is a cross-sectional view showing a fusion heater used in the method for manufacturing a composite structure in one embodiment of the present invention, FIG. 8 is a cross-sectional view showing a method of using the fusion heater, and FIG. Sectional drawing which shows the 1st process (The process of sandwiching a core material with the 1st and 2nd coating | covering material) of the manufacturing method of the composite structure in one embodiment of invention, FIG. 10 is the manufacturing method of the said composite structure FIG. 11 is a cross-sectional view showing a third step (a step of filling a filling member) of the method for manufacturing the composite structure.
図７、図８に示すように、本実施の形態の複合構造体１の製造方法に用いられる融着用ヒータ７は、ヒータ本体７ａと、ヒータ本体７ａの一方の面に設けられ、充填孔１６に挿入される厚肉円筒状の第１のヒータフェイス７ｂと、ヒータ本体７ａの他方の面に設けられ、充填部材５となる熱可塑性樹脂製の円柱状の棒材８が挿入される円筒状の第２のヒータフェイス７ｃと、により構成されている。 As shown in FIGS. 7 and 8, the fusion heater 7 used in the method for manufacturing the composite structure 1 of the present embodiment is provided on the heater body 7a and one surface of the heater body 7a. A thick cylindrical first heater face 7b to be inserted into the cylinder, and a cylindrical shape provided on the other surface of the heater body 7a and into which a cylindrical rod 8 made of thermoplastic resin serving as the filling member 5 is inserted. The second heater face 7c.
まず、図９に示すように、ひと組の第１及び第２貫通孔３ａ、２ａ並びに有底孔４ａを同軸に配置した状態で、芯材２を第１及び第２の被覆材３、４によってサンドイッチする。次いで、図１０に示すように、外周面に、当該外周面に露出した芯材２を覆うように、第１及び第２の被覆材３、４と同じ材料（熱可塑性樹脂）からなる周面部材６を取り付け、当該周面部材６を、手動溶接によって第１及び第２の被覆材３、４に融着する。次いで、図８に示すように、予めヒータ本体７ａの電源を入れておいた融着用ヒータ７の第１のヒータフェイス７ｂを、充填孔１６に挿入すると共に、第２のヒータフェイス７ｃに棒材８を挿入し、充填孔１６と棒材８を同時に加熱する。このとき、充填部材５と芯材２が接触しないように設計されているため、ヒータフェイス７ｂの熱が芯材２に奪われることなく有底孔４ａに伝わることで強固に連結することができる。次いで、充填孔１６から融着用ヒータ７の第１のヒータフェイス７ｂを取り外すと共に、第２のヒータフェイス７ｃから棒材８を抜き取る。次いで、図１１（ａ）、（ｂ）に示すように、加熱した棒材８を、加熱した充填孔１６に挿入する。これにより、棒材８が第１貫通孔３ａ及び有底孔４ａの内周面に融着される。次いで、自然冷却の後、図１１（ｂ）、（ｃ）に示すように、棒材８を第１の被覆材３の表面近傍でカットする。これにより、充填孔１６に充填部材５が充填された状態となる。以上の充填部材５の充填作業を、全ての充填孔１６に対して行なう。これにより、芯材２が第１及び第２の被覆材３、４によってサンドイッチされ、第１及び第２の被覆材３、４が互いに強固に連結された状態の複合構造体１が得られる（図４参照）。 First, as shown in FIG. 9, the core material 2 is placed in the first and second covering materials 3, 4 in a state where the pair of first and second through holes 3a, 2a and the bottomed hole 4a are arranged coaxially. Sandwich by. Next, as shown in FIG. 10, a peripheral surface made of the same material (thermoplastic resin) as the first and second covering materials 3 and 4 so as to cover the core material 2 exposed on the outer peripheral surface on the outer peripheral surface. The member 6 is attached and the peripheral surface member 6 is fused to the first and second covering materials 3 and 4 by manual welding. Next, as shown in FIG. 8, the first heater face 7b of the fusion heater 7 with the heater main body 7a turned on in advance is inserted into the filling hole 16, and the bar material is inserted into the second heater face 7c. 8 is inserted and the filling hole 16 and the bar 8 are heated simultaneously. At this time, since the filling member 5 and the core material 2 are designed not to contact with each other, the heat of the heater face 7b is transmitted to the bottomed hole 4a without being taken away by the core material 2, so that it can be firmly connected. . Next, the first heater face 7b of the fusion heater 7 is removed from the filling hole 16, and the bar 8 is extracted from the second heater face 7c. Next, as shown in FIGS. 11A and 11B, the heated bar 8 is inserted into the heated filling hole 16. Thereby, the bar 8 is fused to the inner peripheral surfaces of the first through hole 3a and the bottomed hole 4a. Next, after natural cooling, the bar 8 is cut in the vicinity of the surface of the first covering member 3 as shown in FIGS. Thus, the filling hole 16 is filled with the filling member 5. The above filling operation of the filling member 5 is performed on all the filling holes 16. Thereby, the core material 2 is sandwiched between the first and second coating materials 3 and 4, and the composite structure 1 in a state where the first and second coating materials 3 and 4 are firmly connected to each other is obtained ( (See FIG. 4).
尚、本実施の形態においては、芯材２並びに第１及び第２の被覆材３、４が平板状である場合を例に挙げて説明しているが、必ずしもこのような構成に限定されるものではない。芯材並びに第１及び第２の被覆材は、例えば、湾曲していてもよく、折れ曲がっていてもよい。 In the present embodiment, the case where the core member 2 and the first and second covering members 3 and 4 are flat is described as an example. However, the present invention is not necessarily limited to such a configuration. It is not a thing. The core material and the first and second coating materials may be curved or bent, for example.
また、本実施の形態においては、第１及び第２貫通孔３ａ、２ａ並びに有底孔４ａが円筒状に形成されている場合を例に挙げて説明しているが、必ずしもこのような構成に限定されるものではない。第１及び第２貫通孔並びに有底孔は、例えば、多角筒状に形成されていてもよい。この場合には、充填部材も、多角柱状に形成する必要がある。さらに、接着方法を用いる場合には、第１貫通孔や有底孔にテーパーを形成してもよい。 In the present embodiment, the case where the first and second through holes 3a, 2a and the bottomed hole 4a are formed in a cylindrical shape is described as an example. It is not limited. The first and second through holes and the bottomed hole may be formed in a polygonal cylinder, for example. In this case, the filling member also needs to be formed in a polygonal column shape. Furthermore, when using the bonding method, the first through hole or the bottomed hole may be tapered.
また、本実施の形態においては、芯材２が例えば鋳鉄、鋳鋼、炭素鋼、銅、銅合金、真鍮、アルミニウム、ステンレス、チタンのような金属等の高強度材からなる場合を例に挙げて説明しているが、必ずしもこのような構成に限定されるものではない。芯材２としては、高強度材以外のものを用いることもできる。例えば、第１及び第２の被覆材３、４とは異なる熱可塑性、熱硬化性の樹脂やその樹脂を繊維で強化した樹脂を用いてもよい。 Moreover, in this Embodiment, the case where the core material 2 consists of high-strength materials, such as metals, such as cast iron, cast steel, carbon steel, copper, a copper alloy, brass, aluminum, stainless steel, titanium, is mentioned as an example. Although described, it is not necessarily limited to such a configuration. As the core material 2, a material other than a high-strength material can be used. For example, a thermoplastic or thermosetting resin different from the first and second coating materials 3 and 4 or a resin reinforced with a fiber may be used.
また、本実施の形態においては、芯材を密封するための接合方法としてヒータフェイスを用いた融着方法を例に挙げて説明しているが、必ずしもこのような融着方法に限定されるものではない。例えば、ＥＦによる融着方法、ＩＨによる融着方法を用いてもよい。さらに、ポリ塩化ビニル等のような接着が可能な樹脂を使用する場合には、融着や溶接ではなく、接着剤による接着方法を用いてもよい。 In the present embodiment, a fusion method using a heater face is described as an example of a joining method for sealing the core material. However, the present invention is not necessarily limited to such a fusion method. is not. For example, a fusion method using EF or a fusion method using IH may be used. Furthermore, when using a resin that can be bonded, such as polyvinyl chloride, an adhesive bonding method may be used instead of fusion or welding.
［応用例］
次に、本発明の複合構造体を、塔槽の蓋に応用した例について、図１２〜図１６をも参照しながら説明する。
[Application example]
Next, an example in which the composite structure of the present invention is applied to a lid of a tower tank will be described with reference to FIGS.
図１２は、本発明の応用例における塔槽の蓋を構成するフレームを示す斜視図、図１３は、当該塔槽の蓋を構成するフレームに芯材を組み付けた状態を示す斜視図、図１４は、当該塔槽の蓋の、充填部材が充填される前の構成を示す斜視図、図１５は、当該塔槽の蓋を示す斜視図、図１６は、当該蓋を裏面側から見た斜視図である。 FIG. 12 is a perspective view showing a frame that constitutes a lid of the tower tank in an application example of the present invention, FIG. 13 is a perspective view showing a state in which a core is assembled to the frame that constitutes the lid of the tower tank, and FIG. FIG. 15 is a perspective view showing a structure of the lid of the tower tank before the filling member is filled, FIG. 15 is a perspective view showing the lid of the tower tank, and FIG. 16 is a perspective view of the lid viewed from the back side. FIG.
図１２〜図１６に示すように、塔槽の蓋９は、一般構造用圧延鋼材（ＳＳ）製の角パイプ（外径サイズ：４０ｍｍ×４０ｍｍ）１０ａの組み合わせからなるフレーム１０と、フレーム１０に溶接によって組み付けられた厚さ３．２ｍｍのＳＳ製の平板状の芯材１１と、芯材１１の表面に組み付けられた厚さ５ｍｍのポリプロピレン（ＰＰ）製の平板状の第１の被覆材１２と、フレーム１０を構成する角パイプ１０ａに組み付けられたＰＰ製の角パイプ（外径サイズ：５０ｍｍ×５０ｍｍ）１３と、芯材１１の裏面に組み付けられた厚さ１０ｍｍのＰＰ製の平板状の第２の被覆材１４と、第１の被覆材１２と第２の被覆材１４とを連結するための充填部材が充填される複数の充填孔１５と、充填孔１５に充填されるＰＰ製の充填部材（図示せず）と、を備えている。 As shown in FIGS. 12 to 16, the lid 9 of the tower tank is composed of a frame 10 made of a combination of square pipes (outer diameter size: 40 mm × 40 mm) 10 a made of general structural rolled steel (SS), and a frame 10. A flat plate core 11 made of SS with a thickness of 3.2 mm assembled by welding, and a first flat coating material 12 made of polypropylene (PP) with a thickness of 5 mm assembled on the surface of the core 11. And a PP square pipe (outer diameter size: 50 mm × 50 mm) 13 assembled to the square pipe 10 a constituting the frame 10, and a 10 mm thick flat plate made of PP assembled to the back surface of the core 11. A second covering material 14, a plurality of filling holes 15 filled with a filling member for connecting the first covering material 12 and the second covering material 14, and a PP-made filling material filled in the filling holes 15. Filling member (not shown) And.
ここで、ＳＳ製の芯材１１にはパンチング加工が施されており、これにより、芯材１１ひいては蓋９の軽量化が図られている。芯材１１の軽量化方法としてはグレーチングの板を用いてもよい。また、芯材１１には、充填孔１５を構成する複数の孔（第２貫通孔）が形成されている。また、第１の被覆材１２には、充填孔１５を構成する複数の孔（第１貫通孔）が形成され、第２の被覆材１４には、充填孔１５を構成する複数の孔（有底孔）が形成されている。ＰＰ製の角パイプ１３は、ＰＰ製の第１の被覆材１２に手動溶接によって接合される。ＰＰ製の第２の被覆材１４は、芯材１１の裏面に押出溶接によって組み付けられる。 Here, punching is performed on the core material 11 made of SS, thereby reducing the weight of the core material 11 and the lid 9. As a method for reducing the weight of the core material 11, a grating plate may be used. Further, the core material 11 is formed with a plurality of holes (second through holes) constituting the filling hole 15. In addition, the first covering material 12 is formed with a plurality of holes (first through holes) constituting the filling hole 15, and the second covering material 14 is provided with a plurality of holes (existing holes) constituting the filling hole 15. Bottom hole) is formed. The square pipe 13 made of PP is joined to the first covering material 12 made of PP by manual welding. The second covering material 14 made of PP is assembled to the back surface of the core material 11 by extrusion welding.
第１の被覆材１２と第２の被覆材１４の連結は、上記した融着用ヒータ７を用いて行なわれる（図７、図８参照）。すなわち、予めヒータ本体７ａの電源を入れておいた融着用ヒータ７の第１のヒータフェイス７ｂを、充填孔１５に挿入すると共に、第２のヒータフェイス７ｃに棒材８を挿入し、充填孔１５と棒材８を同時に加熱する。次いで、充填孔１５から融着用ヒータ７の第１のヒータフェイス７ｂを取り外すと共に、第２のヒータフェイス７ｃから棒材８を抜き取る。次いで、加熱した棒材８を、加熱した充填孔１５に挿入する。これにより、棒材８が第１及び第２の被覆材１２、１４の充填孔１５の内周面に融着される。次いで、自然冷却の後、棒材８を第１の被覆材１２の表面近傍でカットする。これにより、充填孔１５に充填部材が充填された状態となる。以上の充填部材の充填作業を、全ての充填孔１５に対して行なう。これにより、芯材１１が第１及び第２の被覆材１２、１４によってサンドイッチされ、第１及び第２の被覆材１２、１４が互いに強固に連結された状態の塔槽の蓋９が得られる。 The connection between the first covering material 12 and the second covering material 14 is performed by using the fusion heater 7 described above (see FIGS. 7 and 8). That is, the first heater face 7b of the fusion heater 7 with the heater main body 7a turned on in advance is inserted into the filling hole 15, and the bar 8 is inserted into the second heater face 7c to fill the filling hole. 15 and the bar 8 are heated simultaneously. Next, the first heater face 7 b of the fusion heater 7 is removed from the filling hole 15, and the bar material 8 is extracted from the second heater face 7 c. Next, the heated bar 8 is inserted into the heated filling hole 15. Thereby, the bar 8 is fused to the inner peripheral surface of the filling hole 15 of the first and second covering materials 12 and 14. Next, after natural cooling, the bar 8 is cut in the vicinity of the surface of the first covering material 12. As a result, the filling hole 15 is filled with the filling member. The filling operation of the filling member described above is performed for all the filling holes 15. Thereby, the core material 11 is sandwiched between the first and second coating materials 12 and 14, and the tower lid 9 in a state where the first and second coating materials 12 and 14 are firmly connected to each other is obtained. .
以上のようにして得られた塔槽の蓋９は、ＳＳ製の芯材１１がＰＰ製の第１及び第２の被覆材１２、１４、ＰＰ製の角パイプ１３及びＰＰ製の充填部材によって完全に密封された状態となっている。すなわち、この塔槽の蓋９は、軽量で強度が高く、耐腐食性・耐薬品性にも優れたものとなっている。そして、この塔槽の蓋９は、オール樹脂製の塔槽の蓋に比べて強度が高いため、厳しい環境下でも長期間高強度を保つことが可能となる。 The lid 9 of the tower tank obtained as described above is composed of the first and second covering materials 12 and 14 made of PP, the square pipe 13 made of PP, and the filling member made of PP. It is in a completely sealed state. That is, the lid 9 of this tower tank is lightweight, has high strength, and is excellent in corrosion resistance and chemical resistance. Since the lid 9 of the tower tank is higher in strength than the lid of the all-resin tower tank, it is possible to maintain high strength for a long time even in a severe environment.
尚、本応用例においては、本発明の複合構造体を、塔槽の蓋９に応用した場合を例に挙げて説明しているが、本発明の複合構造体は必ずしもかかる用途に限定されるものではない。本発明の複合構造体は、例えば、塔槽そのもの、ダクト等の配管部材、建築用構造部材に応用することもできる。 In this application example, the case where the composite structure of the present invention is applied to the lid 9 of the tower tank is described as an example, but the composite structure of the present invention is not necessarily limited to such use. It is not a thing. The composite structure of the present invention can be applied to, for example, a tower tank itself, a piping member such as a duct, and a structural member for construction.
本発明によれば、強度が高く、耐腐食性・耐薬品性にも優れた、塔槽の素材として好適な複合構造体を提供することが可能となる。従って、本発明の複合構造体は、塔槽の素材として用いた場合に厳しい環境下でも長期間高強度を保つことができる点で有用である。 ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to provide the composite structure suitable as a raw material of a tower tank with high intensity | strength and excellent in corrosion resistance and chemical resistance. Therefore, the composite structure of the present invention is useful in that it can maintain high strength for a long time even under severe conditions when used as a raw material for a tower tank.
１ 複合構造体
２、１１ 芯材
２ａ 第２貫通孔
３、１２ 第１の被覆材
３ａ 第１貫通孔
４、１４ 第２の被覆材
４ａ 有底孔
５ 充填部材
６ 周面部材
７ 融着用ヒータ
７ａ ヒータ本体
７ｂ 第１のヒータフェイス
７ｃ 第２のヒータフェイス
８ 棒材
９ 塔槽の蓋
１０ フレーム
１０ａ、１３ 角パイプ
１５、１６ 充填孔
DESCRIPTION OF SYMBOLS 1 Composite structure 2, 11 Core material 2a 2nd through-hole 3, 12 1st coating | covering material 3a 1st through-hole 4, 14 2nd coating | covering material 4a Bottomed hole 5 Filling member 6 Peripheral surface member 7 Fusion heater 7a Heater body 7b 1st heater face 7c 2nd heater face 8 Bar material 9 Tower tank cover 10 Frame 10a, 13 Square pipe 15, 16 Filling hole
Claims (7)
前記第１の被覆材に設けられた第１貫通孔と、
前記芯材に、前記第１貫通孔と連通するように設けられた第２貫通孔と、
前記第２の被覆材の、前記芯材と対向する面に、前記第２貫通孔と連通するように設けられた有底孔と、
ひと組の前記第１及び第２貫通孔並びに前記有底孔からなる充填孔に充填され、かつ、少なくとも前記第１貫通孔及び有底孔の内周面に接合された、熱可塑性樹脂からなる充填部材と、を備えたことを特徴とする複合構造体。 A composite structure in which a core material is sandwiched between first and second covering materials made of a thermoplastic resin,
A first through hole provided in the first covering material;
A second through hole provided in the core member so as to communicate with the first through hole;
A bottomed hole provided on the surface of the second covering material facing the core material so as to communicate with the second through hole;
It is made of a thermoplastic resin that is filled in a set of the first and second through holes and the bottomed hole and is joined to at least the inner peripheral surface of the first through hole and the bottomed hole. And a filling member.
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| JP2013163302A (en) * | 2012-02-10 | 2013-08-22 | Honda Motor Co Ltd | Method and device for joining resin material |
| JP2014234913A (en) * | 2013-06-05 | 2014-12-15 | 積水化学工業株式会社 | Metal resin composite pipe and manufacturing method of the same |
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|---|---|---|---|---|
| JPH05245941A (en) * | 1992-03-06 | 1993-09-24 | Yokohama Rubber Co Ltd:The | Joining method between more than one material |
| JPH08119711A (en) * | 1994-10-20 | 1996-05-14 | Matsushita Electric Works Ltd | Structure for reinforcing rock wool board and method for reinforcing |
| JP2005001158A (en) * | 2003-06-10 | 2005-01-06 | Takada Seisakusho:Kk | Composite material |
| JP2012513552A (en) * | 2008-12-23 | 2012-06-14 | ウッドウェルディング・アクチェンゲゼルシャフト | Method for fixing connector and connector |
| JP2013163302A (en) * | 2012-02-10 | 2013-08-22 | Honda Motor Co Ltd | Method and device for joining resin material |
| JP2014234913A (en) * | 2013-06-05 | 2014-12-15 | 積水化学工業株式会社 | Metal resin composite pipe and manufacturing method of the same |
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