JP5555433B2 - Manufacturing method of fiber reinforced resin pipe joint - Google Patents
Manufacturing method of fiber reinforced resin pipe joint Download PDFInfo
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- JP5555433B2 JP5555433B2 JP2009046120A JP2009046120A JP5555433B2 JP 5555433 B2 JP5555433 B2 JP 5555433B2 JP 2009046120 A JP2009046120 A JP 2009046120A JP 2009046120 A JP2009046120 A JP 2009046120A JP 5555433 B2 JP5555433 B2 JP 5555433B2
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Description
この発明は、繊維強化樹脂管継手の製造方法に関するものである。 The present invention relates to a method for manufacturing a fiber-reinforced resin pipe joint.
従来より、軽量なことによる施工性に優れた特性から繊維強化樹脂管継手が広く提供されている。この繊維強化樹脂管継手は、例えば、特許文献1に示されるように、軸方向に移動しつつ周方向に回転するドラム状の型に、光重合開始剤が配合された重合性樹脂組成物を含浸させた強化繊維束を連続的に巻き付けるとともに、巻き取った強化繊維束に自然光や紫外線などを照射して強化繊維束に含浸された重合性樹脂組成物を硬化させることにより成形される。
Conventionally, fiber reinforced resin pipe joints have been widely provided because of their excellent workability due to their light weight. For example, as shown in
一方、このような繊維強化樹脂管継手を利用して接続される繊維強化樹脂本管は、通常、熱可塑性樹脂組成物にねずみ色などの顔料を添加して成形することから、ねずみ色などに着色されている。 On the other hand, fiber reinforced resin main pipes connected using such fiber reinforced resin pipe joints are usually colored with a gray color or the like because they are molded by adding a pigment such as a gray color to a thermoplastic resin composition. ing.
これに対し、繊維強化樹脂管継手の、光重合開始剤が配合された重合性樹脂組成物に顔料が添加されると、光が透過しないか、透過しにくく、重合性樹脂組成物が硬化しないことから、重合性樹脂組成物に顔料を添加することはできない。これにより、顔料が添加されない重合性樹脂組成物が硬化した繊維強化樹脂管継手は、元の蛍光色である黄緑色を呈している。しかも、繊維強化樹脂管継手の重合性樹脂組成物は、時間の経過とともに黄変する性状を有している。このため、繊維強化樹脂管継手を在庫管理し、一定時間経過後に出荷した場合、着色された繊維強化樹脂本管の色と黄変した繊維強化樹脂管継手の色とが調和せず、これを改善する目的で、繊維強化樹脂管継手の成形後、その外周面を繊維強化樹脂本管の色に合わせて塗装するようにしている。 On the other hand, when a pigment is added to a polymerizable resin composition containing a photopolymerization initiator of a fiber reinforced resin pipe joint, light is not transmitted or hardly transmitted, and the polymerizable resin composition is not cured. Therefore, a pigment cannot be added to the polymerizable resin composition. Thereby, the fiber reinforced resin pipe joint in which the polymerizable resin composition to which no pigment is added is cured has a yellowish green color which is the original fluorescent color. Moreover, the polymerizable resin composition of the fiber reinforced resin pipe joint has a property of yellowing over time. For this reason, when stock management of fiber reinforced resin pipe fittings is carried out and shipped after a certain period of time, the color of the colored fiber reinforced resin main pipe and the color of the yellowed fiber reinforced resin pipe fitting do not match. For the purpose of improvement, after molding of the fiber reinforced resin pipe joint, the outer peripheral surface is painted according to the color of the fiber reinforced resin main pipe.
ところで、塗装した繊維強化樹脂管継手の輸送に際して、繊維強化樹脂管継手が互いに接触することによって、または、緩衝材として巻回した不織布ロープによる軸方向あるいは周方向の摺動摩擦によって塗装が剥がれ落ちるという問題があった。すなわち、塗料の密着性を向上させるためには、塗装面の脱脂処理およびプライマー処理などの下地処理が不可欠であるが、繊維強化樹脂管継手の製造ラインにおいて、下地処理工程を配置するとともに、下地処理面を保持することは困難である。このため、製造された繊維強化樹脂管継手の外周面に下地処理を施すことなく塗装している。これにより、顧客に届くまでの輸送中に繊維強化樹脂管継手同士の直接的な接触、または、緩衝材などを介した間接的な接触によって塗装の剥がれが発生する原因となっていた。 By the way, when transporting the coated fiber reinforced resin pipe joint, the fiber reinforced resin pipe joint comes into contact with each other, or the paint peels off due to axial or circumferential sliding friction by a nonwoven rope wound as a cushioning material. There was a problem. In other words, in order to improve the adhesion of the paint, ground treatment such as degreasing treatment and primer treatment of the painted surface is indispensable. However, in the production line of fiber reinforced resin pipe joints, It is difficult to hold the processing surface. For this reason, the outer peripheral surface of the manufactured fiber reinforced resin pipe joint is coated without applying a ground treatment. As a result, during the transportation until reaching the customer, the paint detachment is caused by the direct contact between the fiber reinforced resin pipe joints or the indirect contact via the cushioning material.
本発明は、このような問題点に鑑みてなされたもので、下地処理を施すことなく繊維強化樹脂管継手の外周面の塗装の剥がれを可及的に防止することのできる繊維強化樹脂管継手の製造方法を提供するものである。 The present invention has been made in view of such problems, and a fiber reinforced resin pipe joint capable of preventing the peeling of the coating on the outer peripheral surface of the fiber reinforced resin pipe joint as much as possible without performing a ground treatment. The manufacturing method of this is provided.
本発明は、光重合開始剤を含む重合性樹脂組成物を含浸させた強化繊維束を型に巻き付けるとともに、巻き取った強化繊維束に光を照射し、強化繊維束に含浸された重合性樹脂組成物を硬化させて繊維強化樹脂管継手を成形した後、繊維強化樹脂管継手を脱型し、次いで、繊維強化樹脂管継手を回転させるとともに、その外周面に回転するブラシを接触させて繊維強化樹脂管継手の外周面を粗面加工した後、繊維強化樹脂管継手の外周面を繊維強化樹脂管本管と同色に塗装することを特徴とするものである。 The present invention relates to a polymerizable resin in which a reinforcing fiber bundle impregnated with a polymerizable resin composition containing a photopolymerization initiator is wound around a mold, and the wound reinforcing fiber bundle is irradiated with light to impregnate the reinforcing fiber bundle. After the composition is cured to form a fiber reinforced resin pipe joint, the fiber reinforced resin pipe joint is removed from the mold, and then the fiber reinforced resin pipe joint is rotated and a rotating brush is brought into contact with the outer peripheral surface of the fiber reinforced resin pipe joint. After the outer peripheral surface of the reinforced resin pipe joint is roughened, the outer peripheral surface of the fiber reinforced resin pipe joint is painted in the same color as the main fiber reinforced resin pipe .
本発明によれば、光重合開始剤を含む重合性樹脂組成物を含浸させた強化繊維束を型に巻き付けるとともに、巻き取った強化繊維束に光を照射して強化繊維束に含浸された重合性樹脂組成物を硬化させ、繊維強化樹脂管継手を成形する。次いで、繊維強化樹脂管継手を脱型した後、繊維強化樹脂管継手を回転させるとともに、その外周面に回転するブラシを接触させて繊維強化樹脂管継手の外周面を僅かに研磨することにより、繊維強化樹脂管継手の外周面を粗面加工する。そして、粗面加工された繊維強化樹脂管継手の外周面を下水管などの繊維強化樹脂本管と同色に塗装する。ここで、ブラシとしては、市販のワイヤブラシやプラスチックブラシを使用することができる。 According to the present invention, a reinforced fiber bundle impregnated with a polymerizable resin composition containing a photopolymerization initiator is wound around a mold, and the reinforced fiber bundle is impregnated with light by irradiating the wound reinforcing fiber bundle with light. The resin composition is cured to form a fiber reinforced resin pipe joint. Then, after demolding the fiber-reinforced resin pipe fittings, to rotate the fiber-reinforced resin pipe fittings, slightly Labs Migakusu isosamples contacting the brush outer peripheral surface of the fiber-reinforced resin pipe joint which rotates on the outer peripheral surface Thus, the outer peripheral surface of the fiber-reinforced resin pipe joint is roughened. And the outer peripheral surface of the fiber reinforced resin pipe joint by which the rough surface process was carried out is painted with the same color as fiber reinforced resin main pipes, such as a sewage pipe. Here, as the brush, a commercially available wire brush or plastic brush can be used.
この結果、繊維強化樹脂管継手の製造工程において、簡単な外周面の粗面加工を付加することによって塗料の密着性を高めることができ、塗装の剥がれを可及的に防止することができる。しかも、繊維強化樹脂管継手の外周面に粗面加工を施すだけでよく、繊維強化樹脂管継手の製造工程に製造ラインを変更して下地処理工程を設置する必要がなく、かつ、下地処理に伴う多くの作業時間が不要になることから、製造コストの上昇を最小限度に抑えることができる。 As a result, in the manufacturing process of the fiber reinforced resin pipe joint, the adhesion of the paint can be enhanced by adding a rough surface processing of the outer peripheral surface, and the peeling of the coating can be prevented as much as possible. In addition, it is only necessary to roughen the outer peripheral surface of the fiber reinforced resin pipe joint, and it is not necessary to change the production line to the fiber reinforced resin pipe joint manufacturing process and install a ground treatment process. Since much work time is not required, an increase in manufacturing cost can be minimized.
本発明は、光重合開始剤を含む重合性樹脂組成物を含浸させた強化繊維束を型に巻き付けるとともに、巻き取った強化繊維束に光を照射し、強化繊維束に含浸された重合性樹脂組成物を硬化させて繊維強化樹脂管継手を成形した後、繊維強化樹脂管継手を脱型し、次いで、繊維強化樹脂管継手を回転させるとともに、その外周面に砂またはガラス玉を吹き付けて繊維強化樹脂管継手の外周面を粗面加工した後、繊維強化樹脂管継手の外周面を繊維強化樹脂管本管と同色に塗装することを特徴とするものである。The present invention relates to a polymerizable resin in which a reinforcing fiber bundle impregnated with a polymerizable resin composition containing a photopolymerization initiator is wound around a mold, and the wound reinforcing fiber bundle is irradiated with light to impregnate the reinforcing fiber bundle. After the composition is cured to form a fiber reinforced resin pipe joint, the fiber reinforced resin pipe joint is demolded, and then the fiber reinforced resin pipe joint is rotated, and sand or glass balls are sprayed on the outer peripheral surface thereof to produce fibers. After the outer peripheral surface of the reinforced resin pipe joint is roughened, the outer peripheral surface of the fiber reinforced resin pipe joint is painted in the same color as the main fiber reinforced resin pipe.
本発明によれば、光重合開始剤を含む重合性樹脂組成物を含浸させた強化繊維束を型に巻き付けるとともに、巻き取った強化繊維束に光を照射して強化繊維束に含浸された重合性樹脂組成物を硬化させ、繊維強化樹脂管継手を成形する。次いで、繊維強化樹脂管継手を脱型した後、繊維強化樹脂管継手を回転させるとともに、その外周面に砂またはガラス玉を吹き付けて繊維強化樹脂管継手の外周面に僅かな凹凸を形成することにより、繊維強化樹脂管継手の外周面を粗面加工する。そして、粗面加工された繊維強化樹脂管継手の外周面を下水管などの繊維強化樹脂本管と同色に塗装する。According to the present invention, a reinforced fiber bundle impregnated with a polymerizable resin composition containing a photopolymerization initiator is wound around a mold, and the reinforced fiber bundle is impregnated with light by irradiating the wound reinforcing fiber bundle with light. The resin composition is cured to form a fiber reinforced resin pipe joint. Next, after removing the fiber reinforced resin pipe joint, the fiber reinforced resin pipe joint is rotated, and sand or glass balls are sprayed on the outer peripheral surface thereof to form slight irregularities on the outer peripheral surface of the fiber reinforced resin pipe joint. Thus, the outer peripheral surface of the fiber-reinforced resin pipe joint is roughened. And the outer peripheral surface of the fiber reinforced resin pipe joint by which the rough surface process was carried out is painted with the same color as fiber reinforced resin main pipes, such as a sewer pipe.
この結果、繊維強化樹脂管継手の製造工程において、簡単な外周面の粗面加工を付加することによって塗料の密着性を高めることができ、塗装の剥がれを可及的に防止することができる。しかも、繊維強化樹脂管継手の外周面に粗面加工を施すだけでよく、繊維強化樹脂管継手の製造工程に製造ラインを変更して下地処理工程を設置する必要がなく、かつ、下地処理に伴う多くの作業時間が不要になることから、製造コストの上昇を最小限度に抑えることができる。As a result, in the manufacturing process of the fiber reinforced resin pipe joint, the adhesion of the paint can be enhanced by adding a rough surface processing of the outer peripheral surface, and the peeling of the coating can be prevented as much as possible. In addition, it is only necessary to roughen the outer peripheral surface of the fiber reinforced resin pipe joint, and it is not necessary to change the production line to the fiber reinforced resin pipe joint manufacturing process and install a ground treatment process. Since much work time is not required, an increase in manufacturing cost can be minimized.
本発明によれば、繊維強化樹脂管継手の外周面に下地処理を施すことなく繊維強化樹脂管継手の外周面の塗装の剥がれを可及的に防止することができる。 ADVANTAGE OF THE INVENTION According to this invention, peeling of the coating of the outer peripheral surface of a fiber reinforced resin pipe joint can be prevented as much as possible, without performing a surface treatment to the outer peripheral surface of a fiber reinforced resin pipe joint.
以下、本発明の実施の形態を図面に基づいて説明する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
図1には、本発明の繊維強化樹脂管継手の製造方法における粗面加工の一実施形態が示されている。 FIG. 1 shows an embodiment of rough surface processing in the method for producing a fiber-reinforced resin pipe joint of the present invention.
この繊維強化樹脂管継手1の外周面の粗面加工は、繊維強化樹脂管継手1を支持して回転させる一対の支持ローラ2,2と、繊維強化樹脂管継手1の外周面を粗面加工するブラシ3と、から構成されている。
The roughening of the outer peripheral surface of the fiber reinforced
ブラシ3は、詳細には図示しないが、繊維強化樹脂管継手1の外周面に接触する加工位置と、繊維強化樹脂管継手1の外周面から離隔した退避位置間をシリンダを介して進退自在であり、かつ、モータによって回転自在に構成されている。
Although not shown in detail, the
次に、繊維強化樹脂管継手1の製造工程について説明する。
Next, the manufacturing process of the fiber reinforced
まず、よく知られているように、光重合開始剤を含む重合性樹脂組成物を含浸させた強化繊維束を型に巻き付けるとともに、巻き取った強化繊維束に光を照射して強化繊維束に含浸された重合性樹脂組成物を硬化させ、繊維強化樹脂管継手1を成形する。
First, as is well known, a reinforcing fiber bundle impregnated with a polymerizable resin composition containing a photopolymerization initiator is wound around a mold, and the wound reinforcing fiber bundle is irradiated with light to form a reinforcing fiber bundle. The impregnated polymerizable resin composition is cured to form the fiber reinforced
ここで、樹脂としては、特に限定されないが、例えば、不飽和ポリエステル樹脂、エポキシ樹脂、ビニルエステル樹脂、ウレタン樹脂、アクリル樹脂などが挙げられ、不飽和ポリエステル樹脂が好ましい。 Here, the resin is not particularly limited, and examples thereof include unsaturated polyester resins, epoxy resins, vinyl ester resins, urethane resins, acrylic resins, and the like, and unsaturated polyester resins are preferable.
また、光重合開始剤としては、(ビス)アシルフォスフィンオキサイド、カンファーキノン、ベンジル、トリメチルベンゾイルジフェニルフォスフィンオキシド、メチルチオキサントン、ビスベンタジエニルチタニウムージ、芳香族ジアゾニウム塩、ジアリールヨードニウム塩、スルホニウム塩、スルホン酸エステル等が挙げられ、これらから単独又は複数選択されて使用される。 Photopolymerization initiators include (bis) acylphosphine oxide, camphorquinone, benzyl, trimethylbenzoyldiphenylphosphine oxide, methylthioxanthone, bis-bentadienyl titanium-di, aromatic diazonium salt, diaryl iodonium salt, sulfonium Examples thereof include salts and sulfonic acid esters, and these are used alone or in combination.
強化繊維束としては、特に限定されないが、例えば、ガラス繊維、炭素繊維などの無機質繊維や、ビニロン繊維、アラミド繊維などの有機質繊維などの長繊維が挙げられる。 The reinforcing fiber bundle is not particularly limited, and examples thereof include long fibers such as inorganic fibers such as glass fibers and carbon fibers, and organic fibers such as vinylon fibers and aramid fibers.
繊維強化樹脂管継手1が成形されたならば、繊維強化樹脂管継手1を天井クレーンなどによって支持した状態で型を縮径させ、繊維強化樹脂管継手1を型より離脱させた後、繊維強化樹脂管継手1を吊り上げて搬送し、その外周面を一対の支持ローラ2上に載置する。一対の支持ローラ2に繊維強化樹脂管継手1を載置したならば、支持ローラ2を回転駆動させることにより、一対の支持ローラ2上に支持された繊維強化樹脂管継手1を回転させる。合わせて、ブラシ3を回転駆動させるとともに、加工位置に進出させる。これにより、回転するブラシ3によって回転する繊維強化樹脂管継手1の外周面を僅かに研磨し、粗面加工する。
If the fiber reinforced
繊維強化樹脂管継手1の粗面加工が終了したならば、ブラシ3を退避位置に後退させ、次いで、天井クレーンなどを利用して繊維強化樹脂管継手1を塗装ブースに搬送した後、繊維強化樹脂管継手1を支持して回転させた状態で、スプレーガンより塗料を吐出させ、繊維強化樹脂管継手1の外周面を下水管などの本管の色と同色に塗装する。その後、繊維強化樹脂管継手1を養生し、塗料を乾燥させればよい。
When the rough surface processing of the fiber reinforced
この結果、繊維強化樹脂管継手1の外周面は粗面加工されていることから、塗料の接触面積が増加し、塗料の密着性が向上することにより、塗装の剥がれを防止することができる。具体的には、直尺によって塗装面を擦っても塗装が剥がれることはない他、繊維強化樹脂管継手1の輸送に際して、互いに接触することにより、あるいは、緩衝材を介して間接的に接触することにより、塗装の剥がれを可及的に削減できるものである。 As a result, since the outer peripheral surface of the fiber reinforced resin pipe joint 1 is roughened, the contact area of the paint is increased and the adhesion of the paint is improved, thereby preventing the paint from peeling off. Specifically, the paint surface is not peeled off even if the paint surface is rubbed with a straight scale, and when the fiber reinforced resin pipe joint 1 is transported, it comes into contact with each other or indirectly through a cushioning material. As a result, peeling of the paint can be reduced as much as possible.
また、繊維強化樹脂管継手1の外周面を下地処理する工程を製造ラインに加える必要がない他、下地処理に要する作業時間も不要になる。また、繊維強化樹脂管継手1の外周面に簡単な粗面加工を施すだけでよく、コストアップを最小限度に抑えることができる。 In addition, it is not necessary to add a process for pretreatment of the outer peripheral surface of the fiber reinforced resin pipe joint 1 to the production line, and work time required for the pretreatment is also eliminated. Moreover, it is only necessary to perform a rough surface processing on the outer peripheral surface of the fiber reinforced resin pipe joint 1, and the cost increase can be minimized.
なお、前述した実施形態においては、回転するブラシ3によって繊維強化樹脂管継手1の外周面を粗面加工する場合を説明したが、ショットブラストによって粗面加工してもよい。例えば、繊維強化樹脂管継手1の外周面に砂やガラス玉などを吹き付けて僅かな凹凸を形成し、粗面加工してもよい。
In the above-described embodiment, the case where the outer peripheral surface of the fiber reinforced resin pipe joint 1 is roughened by the rotating
また、繊維強化樹脂管継手を成形する際、最終工程として、強化繊維束に代えて光重合開始剤を含む重合性樹脂組成物が含浸されたポリエステル不織布を最外周面に巻き付けて光硬化させた後、最外周面に巻き付けられたポリエステル不織布にローラを接触させて、ポリエステル不織布による凹凸を際立たせる粗面加工を採用してもよい。 Further, when forming a fiber reinforced resin pipe joint, as a final step, a polyester nonwoven fabric impregnated with a polymerizable resin composition containing a photopolymerization initiator instead of a reinforcing fiber bundle was wound around the outermost peripheral surface and photocured. Then, a rough surface processing may be employed in which the roller is brought into contact with the polyester nonwoven fabric wound around the outermost peripheral surface so as to make the unevenness due to the polyester nonwoven fabric stand out.
1 繊維強化樹脂管継手
2 支持ローラ
3 ブラシ
1 Fiber reinforced resin pipe joint 2
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Priority Applications (1)
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JP2009046120A JP5555433B2 (en) | 2009-02-27 | 2009-02-27 | Manufacturing method of fiber reinforced resin pipe joint |
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JP2009046120A JP5555433B2 (en) | 2009-02-27 | 2009-02-27 | Manufacturing method of fiber reinforced resin pipe joint |
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JP2010195022A JP2010195022A (en) | 2010-09-09 |
JP5555433B2 true JP5555433B2 (en) | 2014-07-23 |
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CN105172004B (en) * | 2015-10-26 | 2017-04-12 | 国塑机械(上海)有限公司 | Cladding device used for multilayer composite braided fiber ringlike bands |
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