JP4764011B2 - Repair method for defective parts of composite materials - Google Patents

Repair method for defective parts of composite materials Download PDF

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JP4764011B2
JP4764011B2 JP2005000145A JP2005000145A JP4764011B2 JP 4764011 B2 JP4764011 B2 JP 4764011B2 JP 2005000145 A JP2005000145 A JP 2005000145A JP 2005000145 A JP2005000145 A JP 2005000145A JP 4764011 B2 JP4764011 B2 JP 4764011B2
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resin
defect
specific space
communication hole
covering material
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JP2006187897A (en
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雅幸 関口
清市 鈴木
誠次 丸山
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Subaru Corp
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Fuji Jukogyo KK
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本発明は、複合材の欠損部修理方法に関し、特に、樹脂系複合材製品の端部又は内部に形成された空隙欠損部に樹脂を充填して修理を行う欠損部修理方法に関する。   The present invention relates to a method for repairing a defective portion of a composite material, and more particularly, to a method for repairing a defective portion in which a gap is formed in an end portion or inside of a resin-based composite material and is repaired.

現在、航空機等の構造部材として、繊維強化樹脂複合材等の「樹脂系複合材」で構成されたパネル（以下「複合材パネル」という）が使用されている。かかる複合材パネルの端部や内部には、成形時に空隙欠損部が形成される場合があり、この空隙欠損部によりパネル強度が低下してしまうことがある。このため、近年においては、複合材パネルに形成された空隙欠損部に樹脂を充填して修理を行う技術が種々提案されている。   Currently, panels made of “resin-based composite materials” such as fiber-reinforced resin composites (hereinafter referred to as “composite panels”) are used as structural members for aircraft and the like. There may be a case where a void defect portion is formed at the end or inside of the composite panel at the time of molding, and the panel strength may be reduced by the void defect portion. For this reason, in recent years, various techniques have been proposed for repairing by filling the gap deficient portion formed in the composite panel with resin.

例えば、複合材パネルの端部に形成された空隙欠損部を修理する方法としては、図３に示すように、複合材パネル１００に形成された開口部１１１から、修理用の樹脂２００を刷毛３００やヘラを用いて空隙欠損部１１０に充填し、２枚のプレート４００で複合材パネル１００を挟み込んで樹脂２００を含浸させる「樹脂挟入法」が提案されている。   For example, as a method of repairing the gap defect formed at the end of the composite panel, as shown in FIG. 3, the repair resin 200 is applied to the brush 300 from the opening 111 formed in the composite panel 100. A “resin insertion method” has been proposed in which the gap defect portion 110 is filled using a spatula or the like, and the composite panel 100 is sandwiched between the two plates 400 to impregnate the resin 200.

また、複合材パネルの内部に形成された空隙欠損部を修理する方法としては、図４に示すように、複合材パネル１００の内部の空隙欠損部１２０に連通する連通孔１３０を２つ穿設し、注射器５００等を用いて一方の連通孔１３０から修理用の樹脂３００を空隙欠損部１２０に注入する「樹脂注入法」が提案されている。また、バルブや連通管が設けられた接続治具６００で連通孔１３０を被覆してその周囲をシール材７００で密封し、被覆密封した部分から空気を排出して空隙欠損部１２０の内部を真空状態とした後、連通孔１３０から空隙欠損部１２０に修理用の樹脂３００を注入する方法も提案されている（例えば、特許文献１参照。）。
特開平７−１３７１５４号公報 Further, as a method of repairing the gap defect formed in the composite panel, two communication holes 130 communicating with the void defect 120 in the composite panel 100 are formed as shown in FIG. A “resin injection method” has been proposed in which a resin 300 for repair is injected into the gap defect 120 from one communication hole 130 using a syringe 500 or the like. Further, the communication hole 130 is covered with a connection jig 600 provided with a valve and a communication pipe, and the periphery thereof is sealed with a sealant 700, and air is discharged from the covered and sealed portion to evacuate the inside of the gap defect 120. There has also been proposed a method of injecting a repairing resin 300 from the communication hole 130 into the gap defect 120 after the state is reached (see, for example, Patent Document 1).
JP 7-137154 A

しかし、前記した樹脂挟入法（図３）を採用すると、修理用の樹脂２００が複合材パネル１００の空隙欠損部１１０の末端部まで充填されず、図３（ｂ）に示すような樹脂未充填部１１２が残存する場合があった。このように樹脂未充填部１１２が残存すると、修理後の複合材パネル１００の品質・強度が低下し、再修理の必要が生じてしまう。   However, when the above-described resin sandwiching method (FIG. 3) is employed, the resin 200 for repair is not filled up to the end of the gap defect 110 of the composite panel 100, and the resin not shown in FIG. The filling part 112 may remain. If the resin-unfilled portion 112 remains in this manner, the quality and strength of the composite panel 100 after repair is lowered, and re-repair is required.

また、前記した樹脂注入法（図４）においては、複合材パネル１００に連通孔１３０を「２つ」穿設する必要があるが、空隙欠損部１２０のサイズが小さい場合や、複数の空隙欠損部１２０が近接した状態で形成されている場合には、全ての空隙欠損部１２０毎に連通孔１３０を「２つ」ずつ穿設することが困難（ないし不可能）となっていた。一方、連通孔１３０を「１つ」だけ穿設して修理用の樹脂２００を注入すると、樹脂２００が空隙欠損部１２０の末端部まで充填されず、依然として空隙欠損部が残存する場合がある。かかる場合には、修理後の複合材パネル１００の品質・強度の低下を招くこととなる。   Further, in the above-described resin injection method (FIG. 4), it is necessary to make “two” communication holes 130 in the composite panel 100. However, when the size of the void defect portion 120 is small, or a plurality of void defects are formed. When the portions 120 are formed close to each other, it is difficult (or impossible) to make “two” communication holes 130 for every gap defect portion 120. On the other hand, when only one communication hole 130 is drilled and the repairing resin 200 is injected, the resin 200 may not be filled up to the end of the void defect 120 and the void defect may still remain. In such a case, the quality and strength of the composite panel 100 after repair will be reduced.

また、特許文献１に記載された方法においては、金属や樹脂で構成された接続治具６００で連通孔１３０を被覆してその周囲を密封する必要があるが、複合材パネル１００が複雑な曲面を有する場合には、その曲面上に接続治具６００を配置してその周囲を密封するのが困難となる。このため、修理可能な製品や部位が限定され、多様な欠損状況に対応することができない可能性があった。   Further, in the method described in Patent Document 1, it is necessary to cover the communication hole 130 with the connection jig 600 made of metal or resin and seal the periphery thereof, but the composite material panel 100 has a complicated curved surface. When it has, it will become difficult to arrange | position the connection jig 600 on the curved surface, and to seal the circumference | surroundings. For this reason, repairable products and parts are limited, and there is a possibility that various defect situations cannot be dealt with.

本発明の課題は、樹脂系複合材製品に形成された空隙欠損部に樹脂を確実に充填して修理後の製品の品質・強度の低下を阻止することができ、なおかつ、多様な欠損状況に対応し得る複合材の欠損修理方法を提供することである。   The object of the present invention is to reliably fill the gap defect formed in the resin-based composite product with resin to prevent the quality and strength of the product after repair from being reduced, and in various defect situations. It is to provide a method for repairing a defective composite material that can be dealt with.

以上の課題を解決するために、請求項１に記載の発明は、樹脂系複合材製品に形成された、開口部を有する空隙欠損部に樹脂を充填して修理を行う欠損部修理方法であって、前記開口部の周囲領域を真空口金が設けられた柔軟な被覆材で被覆して被覆した部分の周囲にシーラントを配することにより前記樹脂系複合材製品と前記被覆材とで囲まれる特定空間を気密状態とする被覆密閉工程と、前記真空金具に吸引装置を接続し、この吸引装置を用いて前記特定空間から空気を排出して前記特定空間内の圧力を所定の真空圧とする真空引き工程と、前記被覆材の外側に壁を形成して樹脂溜まりを設け、この樹脂溜まりに液状の樹脂を溜めることにより、前記被覆材を隔てて液状の樹脂を前記開口部に隣接させる樹脂溜め工程と、前記被覆材の前記開口部に隣接している部分に針を突き刺して樹脂流入孔を穿設して、前記特定空間内の真空圧により、前記樹脂溜まりに溜められた液状の樹脂を前記樹脂流入孔及び前記開口部を介して前記空隙欠損部内に流入させる樹脂流入工程と、前記空隙欠損部内に流入させた樹脂を硬化させる樹脂硬化工程と、を備えることを特徴とする。 In order to solve the above-described problems, the invention described in claim 1 is a defect repairing method for repairing by filling a resin into a void defect having an opening formed in a resin composite product. In addition, the resin-based composite product and the covering material are surrounded by a sealant disposed around a portion covered with a soft covering material provided with a vacuum cap around the opening area. A covering and sealing step for making the space airtight, and a vacuum in which a suction device is connected to the vacuum fitting, and air is discharged from the specific space using the suction device to set the pressure in the specific space to a predetermined vacuum pressure. A resin reservoir in which a wall is formed outside the covering material to provide a resin reservoir, and a liquid resin is accumulated in the resin reservoir so that the liquid resin is adjacent to the opening across the coating material. Process and before the covering The portion adjacent to the opening pierce the needle bored resin inflow hole, wherein the vacuum pressure in a particular space, the resin reservoir is liquid in the reservoir the resin the resin inlet hole and the opening A resin inflow step for allowing the resin to flow into the void defect portion and a resin curing step for curing the resin flowing into the void defect portion.

請求項１に記載の発明によれば、樹脂系複合材製品に形成された開口部の周囲領域を被覆材で被覆し、製品と被覆材とで囲まれる特定空間を気密状態とする。そして、この特定空間から空気を排出して特定空間内の圧力を所定の真空圧とした後に、被覆材の特定部分（開口部に隣接している部分）に樹脂流入孔を穿設することにより、被覆材の外側に設けられた樹脂溜まり内の液状の樹脂を、特定空間内の真空圧により空隙欠損部内に流入させ、硬化させる。   According to the first aspect of the present invention, the surrounding area of the opening formed in the resin composite material product is covered with the covering material, and the specific space surrounded by the product and the covering material is airtight. Then, after exhausting air from the specific space and setting the pressure in the specific space to a predetermined vacuum pressure, a resin inflow hole is formed in a specific portion of the covering material (a portion adjacent to the opening). Then, the liquid resin in the resin reservoir provided outside the coating material is caused to flow into the gap defect portion by the vacuum pressure in the specific space and is cured.

すなわち、特定空間内の空隙欠損部から空気を排出した状態で、この空隙欠損部に液状の樹脂を流入させて硬化させるので、空隙欠損部全体に樹脂を確実に充填することができ、樹脂未充填部の発生を防止することができる。従って、修理後の製品の品質・強度の低下を阻止することができる。また、柔軟な被覆材を採用しているので、製品が複雑な曲面を有する場合においても、開口部の周囲領域を容易に被覆して密閉することができる。従って、多様な製品形状に対応することができるので、修理可能な製品の種類がきわめて多くなるとともに、所定の製品において修理可能部位が限定されることが少なく、多様な欠損状況に対応することができる。   That is, in a state where air is discharged from the void defect portion in the specific space, the liquid resin is allowed to flow into the void defect portion and is cured, so that the entire void defect portion can be reliably filled with resin, Generation | occurrence | production of a filling part can be prevented. Accordingly, it is possible to prevent the quality and strength of the product after repair from being deteriorated. In addition, since a flexible covering material is adopted, even when the product has a complicated curved surface, the surrounding area of the opening can be easily covered and sealed. Therefore, since it is possible to deal with various product shapes, the number of products that can be repaired is extremely large, and repairable parts are rarely limited in a given product, and it is possible to deal with various defect situations. it can.

請求項２に記載の発明は、樹脂系複合材製品の内部に形成された空隙欠損部に樹脂を充填して修理を行う欠損部修理方法であって、穿孔治具を用いて前記空隙欠損部に連通する連通孔を前記樹脂系複合材製品に穿設する連通孔穿設工程と、前記連通孔の周囲領域を真空口金が設けられた柔軟な被覆材で被覆して被覆した部分の周囲にシーラントを配することにより前記樹脂系複合材製品と前記被覆材とで囲まれる特定空間を気密状態とする被覆密閉工程と、前記真空金具に吸引装置を接続し、この吸引装置を用いて前記特定空間から空気を排出して前記特定空間内の圧力を所定の真空圧とする真空引き工程と、前記被覆材の外側に壁を形成して樹脂溜まりを設け、この樹脂溜まりに液状の樹脂を溜めることにより、前記被覆材を隔てて液状の樹脂を前記連通孔に隣接させる樹脂溜め工程と、前記被覆材の前記連通孔に隣接している部分に針を突き刺して樹脂流入孔を穿設して、前記特定空間内の真空圧により、前記樹脂溜まりに溜められた液状の樹脂を前記樹脂流入孔及び前記連通孔を介して前記空隙欠損部内に流入させる樹脂流入工程と、前記空隙欠損部内に流入させた樹脂を硬化させる樹脂硬化工程と、を備えることを特徴とする。 Invention of Claim 2 is the defect | deletion part repair method which fills resin in the space | gap defect part formed in the inside of a resin type composite material product, and repairs, Comprising: The said space | gap defect part using a drilling jig to a communicating hole drilled step of drilling a passage in the resin-based composite material product which communicates, on the periphery of the portion coated by coating a flexible dressing vacuum mouthpiece is provided a peripheral area of the communication hole A coating sealing process for placing a specific space surrounded by the resin-based composite material product and the coating material in an airtight state by arranging a sealant, and connecting a suction device to the vacuum fitting, and using the suction device, the specific device A vacuuming step for discharging air from the space to set the pressure in the specific space to a predetermined vacuum pressure, and forming a wall by forming a wall outside the covering material, and storing a liquid resin in the resin pool By separating the coating material from the liquid A resin reservoir step of adjoining the fat in the communication hole, said bored to pierce the needle resin inlet hole in the portion adjacent to the communication hole of the dressing, the vacuum pressure in the specific space, the A resin inflow step of allowing the liquid resin stored in the resin reservoir to flow into the gap defect portion through the resin inflow hole and the communication hole, and a resin curing step of curing the resin flowing into the gap defect portion; It is characterized by providing.

請求項２に記載の発明によれば、樹脂系複合材製品の内部に形成された空隙欠損部に連通する連通孔を穿設し、この連通孔の周囲領域を被覆材で被覆し、製品と被覆材とで囲まれる特定空間を気密状態とする。そして、この特定空間から空気を排出して特定空間内の圧力を所定の真空圧とした後に、被覆材の特定部分（連通孔に隣接している部分）に樹脂流入孔を穿設することにより、被覆材の外側に設けられた樹脂溜まり内の液状の樹脂を、特定空間内の真空圧により空隙欠損部内に流入させ、硬化させる。   According to the second aspect of the present invention, a communication hole communicating with a void defect formed inside the resin-based composite material product is formed, and a peripheral region of the communication hole is covered with the covering material, A specific space surrounded by the covering material is set in an airtight state. Then, after exhausting air from the specific space and setting the pressure in the specific space to a predetermined vacuum pressure, a resin inflow hole is formed in a specific portion of the covering material (a portion adjacent to the communication hole). Then, the liquid resin in the resin reservoir provided outside the coating material is caused to flow into the gap defect portion by the vacuum pressure in the specific space and is cured.

すなわち、特定空間内の空隙欠損部から空気を排出した状態で、この空隙欠損部に液状の樹脂を流入させて硬化させるので、空隙欠損部全体に樹脂を確実に充填することができ、樹脂未充填部の発生を防止することができる。従って、修理後の製品の品質・強度の低下を阻止することができる。また、柔軟な被覆材を採用しているので、製品が複雑な曲面を有する場合においても、連通孔の周囲領域を容易に被覆して密閉することができる。この結果、多様な製品形状に対応することができるので、修理可能な製品の種類がきわめて多くなるとともに、所定の製品において修理可能部位が限定されることが少なく、多様な欠損状況に対応することができる。   That is, in a state where air is discharged from the void defect portion in the specific space, the liquid resin is allowed to flow into the void defect portion and is cured, so that the entire void defect portion can be reliably filled with resin, Generation | occurrence | production of a filling part can be prevented. Accordingly, it is possible to prevent the quality and strength of the product after repair from being deteriorated. In addition, since a flexible covering material is employed, even when the product has a complicated curved surface, the area around the communication hole can be easily covered and sealed. As a result, it is possible to deal with a variety of product shapes, so that the number of types of products that can be repaired is extremely large. Can do.

また、請求項２に記載の発明によれば、空隙欠損部に連通する連通孔を「１つ」穿設するだけで空隙欠損部への樹脂の充填が可能となるので、空隙欠損部のサイズが小さい場合や、複数の空隙欠損部が近接した状態で形成されている場合においても、効果的に修理を行うことができる。   According to the second aspect of the present invention, it is possible to fill the void defect portion with the resin simply by making “one” communication hole communicating with the void defect portion. Even when the gap is small or when a plurality of gap defects are formed close to each other, the repair can be performed effectively.

本発明によれば、樹脂系複合材製品に形成された空隙欠損部の開口部又は内部の空隙欠損部に連通するように穿設した連通孔を、被覆材で被覆し、製品と被覆材とで囲まれる特定空間を気密状態とし、この特定空間から空気を排出した後に被覆材に樹脂流入孔を穿設して液状の樹脂を空隙欠損部に流入させ硬化させるので、空隙欠損部に樹脂を確実に充填して樹脂未充填部の発生を防止することができる。従って、修理後の製品の品質・強度の低下を阻止することができる。また、柔軟な被覆材を採用しているので、多様な欠損状況に対応することができる。   According to the present invention, the communication hole formed so as to communicate with the opening of the void defect portion or the internal void defect portion formed in the resin composite material product is covered with the covering material, and the product and the covering material The specific space surrounded by the air is made airtight, and after the air is discharged from the specific space, a resin inflow hole is formed in the covering material to allow the liquid resin to flow into the void defect portion and harden. Filling with certainty can prevent the occurrence of unfilled portions of the resin. Accordingly, it is possible to prevent the quality and strength of the product after repair from being deteriorated. Moreover, since the flexible covering material is adopted, it is possible to cope with various defect situations.

以下、本発明の実施の形態を、図を用いて詳細に説明する。   Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[第１の実施の形態]
まず、図１を用いて、本発明の第１の実施の形態に係る欠損修理方法について説明する。本実施の形態においては、繊維強化樹脂複合材で構成された複合材パネル１の端部に形成された空隙欠損部２に修理用の樹脂を充填して修理を行う方法について説明することとする。 [First embodiment]
First, the defect repair method according to the first embodiment of the present invention will be described with reference to FIG. In the present embodiment, a method will be described in which repair is performed by filling the gap defect portion 2 formed at the end portion of the composite panel 1 made of the fiber reinforced resin composite material with a repair resin. .

まず、複合材パネル１の端部に形成された空隙欠損部２の位置及び範囲を目視及び超音波検査により確認するとともに、空隙欠損部２の内部を真空掃除機で吸引し溶剤洗浄して乾燥させる（欠損部確認洗浄工程）。次いで、空隙欠損部２の開口部２ａを除く部分を、図示していないマスキング用の保護膜で被覆する（マスキング工程）。   First, the position and range of the void defect 2 formed at the end of the composite panel 1 are confirmed by visual inspection and ultrasonic inspection, and the inside of the void defect 2 is sucked with a vacuum cleaner, washed with a solvent and dried. (Deficient part confirmation cleaning process). Next, the portion of the void defect 2 excluding the opening 2a is covered with a masking protective film (not shown) (masking step).

次いで、複合材パネル１に形成された開口部２ａの周囲領域を、被覆材としてのバギングフィルム１０で被覆し、被覆した部分の周囲にシーラント２０を配することにより、複合材パネル１とバギングフィルム１０とで囲まれる特定空間を気密状態とする（被覆密閉工程）。バギングフィルム１０で被覆する領域（開口部２ａの周囲領域）の形状や面積は、複合材パネル１の形状や開口部２ａの位置・大きさ等に応じて適宜決めることができる。被覆密閉工程においては、図１に示すように、複合材パネル１に形成された開口部２ａの周囲領域と、バギングフィルム１０と、の間にピールプライ３０を配置する。また、バギングフィルム１０には真空口金１１を設けておき、この真空口金１１の近傍に脱気用のガラスヤーン４０を配置しておく。   Next, the peripheral region of the opening 2a formed in the composite material panel 1 is covered with a bagging film 10 as a covering material, and the sealant 20 is disposed around the covered portion, whereby the composite material panel 1 and the bagging film are provided. The specific space surrounded by 10 is brought into an airtight state (covering sealing step). The shape and area of the region covered with the bagging film 10 (the region surrounding the opening 2a) can be appropriately determined according to the shape of the composite panel 1, the position / size of the opening 2a, and the like. In the covering and sealing step, as shown in FIG. 1, the peel ply 30 is disposed between the peripheral region of the opening 2 a formed in the composite material panel 1 and the bagging film 10. The bagging film 10 is provided with a vacuum cap 11, and a degassing glass yarn 40 is disposed in the vicinity of the vacuum cap 11.

次いで、真空金具１１に図示していない吸引装置を接続し、この吸引装置を用いて特定空間からの空気の排出（真空引き）を行い、特定空間内の圧力を所定の真空圧（例えば５６０mmHg）に設定する（真空引き工程）。また、空隙欠損部２の内部に流入する樹脂５の流動性を維持する目的で、図１に示すようにヒートランプ５０を用いて空隙欠損部２を所定温度（例えば約５０℃）まで加熱し、その温度を維持しておく（欠損部加熱工程）。   Next, a suction device (not shown) is connected to the vacuum fitting 11 and air is discharged (evacuated) from the specific space using this suction device, and the pressure in the specific space is set to a predetermined vacuum pressure (for example, 560 mmHg). (Evacuation step). Further, in order to maintain the fluidity of the resin 5 flowing into the void defect portion 2, the void defect portion 2 is heated to a predetermined temperature (for example, about 50 ° C.) using a heat lamp 50 as shown in FIG. The temperature is maintained (defect portion heating step).

次いで、バギングフィルム１０の外側に、シーラント等を用いて壁を設けて樹脂溜まり６０を形成し、この樹脂溜まり６０の内部に、液状の修理用の樹脂５を注入して溜める。この際、バギングフィルム１０を隔てて樹脂５を開口部２ａに隣接させるようにする（樹脂溜め工程）。例えば、２液硬化型の樹脂を修理用の樹脂５として採用する場合には、所定温度（例えば５０℃）に加熱した主剤及び硬化剤を図示していない混合容器に注入し、その温度を維持したまま清浄なヘラ等で空気を巻き込まないように両者を充分に混合する。そして、注射器を用いて混合容器の底部付近から樹脂を適量吸い上げ、注射器内の樹脂を樹脂溜まり６０の内部に注入する。   Next, a resin reservoir 60 is formed by providing a wall using a sealant or the like on the outside of the bagging film 10, and the liquid repair resin 5 is injected and stored in the resin reservoir 60. At this time, the resin 5 is made to be adjacent to the opening 2a with the bagging film 10 therebetween (resin storing step). For example, when a two-component curable resin is employed as the repairing resin 5, the main agent and the curing agent heated to a predetermined temperature (for example, 50 ° C.) are injected into a mixing container (not shown) and the temperature is maintained. Then, mix them thoroughly with a clean spatula or the like so that air is not involved. Then, an appropriate amount of resin is sucked up from near the bottom of the mixing container using a syringe, and the resin in the syringe is injected into the resin reservoir 60.

次いで、図１に示すように、バギングフィルム１０及びピールプライ３０の特定部分（開口部２ａに隣接している部分）に針７０を突き刺して樹脂流入孔１２を穿設することにより、樹脂溜まり６０に溜められた液状の樹脂５を、特定空間内の真空圧により、樹脂流入孔１２及び開口部２ａを介して空隙欠損部２の内部に流入させる（樹脂流入工程）。樹脂流入工程においては、樹脂溜まりの内部に樹脂５を適宜補充して、樹脂溜まり６０の内部の樹脂５が流出し切らないようにする。樹脂流入工程は、樹脂５が空隙欠損部２の外部に漏出してピールプライ３０を濡らしていること（空隙欠損部２が樹脂５で満たされたこと）を確認してから所定の含浸時間（例えば約２０分間）経過した時点で終了する。   Next, as shown in FIG. 1, the needle 70 is pierced into a specific portion (the portion adjacent to the opening 2a) of the bagging film 10 and the peel ply 30 to pierce the resin inflow hole 12, whereby the resin reservoir 60 is obtained. The stored liquid resin 5 is caused to flow into the gap defect portion 2 through the resin inflow hole 12 and the opening 2a by the vacuum pressure in the specific space (resin inflow step). In the resin inflow process, the resin 5 is appropriately replenished inside the resin reservoir so that the resin 5 inside the resin reservoir 60 does not completely flow out. In the resin inflow process, a predetermined impregnation time (for example, after confirming that the resin 5 leaks to the outside of the void defect portion 2 and wets the peel ply 30 (the void defect portion 2 is filled with the resin 5). It ends when about 20 minutes have passed.

次いで、真空金具１１から吸引装置を取り外して漏洩止めを行った後、バギングフィルム１０や樹脂溜まり６０等をその位置に残したまま、空隙欠損部２の内部に流入させた樹脂５を硬化させる（樹脂硬化工程）。樹脂硬化工程においては、樹脂溜まり６０の内部に残存する樹脂５もそのまま硬化させる。そして、樹脂５の硬化完了を確認した後、バギングフィルム１０から樹脂溜まり６０や針７０を取り外し、複合材パネル１からバギングフィルム１０や保護膜等を剥がして、複合材パネル１の表面に付着した余剰樹脂を除去する。その後、空隙欠損部２が修理されたことを目視及び超音波検査により確認し、作業を終了する。   Next, after removing the suction device from the vacuum fitting 11 to prevent leakage, the resin 5 that has flowed into the gap defect portion 2 is cured while the bagging film 10, the resin reservoir 60, etc. are left in that position ( Resin curing process). In the resin curing step, the resin 5 remaining inside the resin reservoir 60 is also cured as it is. After confirming the completion of the curing of the resin 5, the resin reservoir 60 and the needle 70 are removed from the bagging film 10, and the bagging film 10 and the protective film are peeled off from the composite material panel 1 and adhered to the surface of the composite material panel 1. Remove excess resin. Thereafter, it is confirmed by visual inspection and ultrasonic inspection that the gap defect portion 2 has been repaired, and the operation is completed.

以上説明した実施の形態に係る欠損部修理方法においては、複合材パネル１に形成された開口部２ａの周囲領域をバギングフィルム１０で被覆し、複合材パネル１とバギングフィルム１０とで囲まれる特定空間を気密状態とする。そして、この特定空間から空気を排出して特定空間内の圧力を所定の真空圧とした後に、バギングフィルム１０及ピールプライ３０の特定部分（開口部２ａに隣接している部分）に樹脂流入孔１２を穿設することにより、バギングフィルム１０の外側に設けられた樹脂溜まり６０内の液状の樹脂５を、特定空間内の真空圧により空隙欠損部２内に流入させ、硬化させる。   In the defect repairing method according to the embodiment described above, the surrounding region of the opening 2a formed in the composite panel 1 is covered with the bagging film 10, and the identification surrounded by the composite panel 1 and the bagging film 10 is performed. Make the space airtight. And after discharging air from this specific space and making the pressure in a specific space into a predetermined vacuum pressure, the resin inflow hole 12 is made into the specific part (part adjacent to the opening part 2a) of the bagging film 10 and the peel ply 30. The liquid resin 5 in the resin reservoir 60 provided outside the bagging film 10 is caused to flow into the gap defect portion 2 by the vacuum pressure in the specific space, and is cured.

すなわち、特定空間内の空隙欠損部２から空気を排出した状態で、この空隙欠損部２に液状の樹脂５を流入させて硬化させるので、空隙欠損部２全体に樹脂５を確実に充填することができ、樹脂未充填部の発生を防止することができる。従って、修理後の複合材パネル１の品質・強度の低下を阻止することができる。また、柔軟な被覆材であるバギングフィルム１０を採用しているので、複合材パネル１が複雑な曲面を有する場合においても、開口部２ａの周囲領域を容易に被覆して密閉することができる。従って、多様なパネル形状に対応することができるので、修理可能な複合材パネル１の種類がきわめて多くなるとともに、複合材パネル１において修理可能部位が限定されることが少なく、多様な欠損状況に対応することができる。   That is, in the state where air is discharged from the void defect portion 2 in the specific space, the liquid resin 5 is allowed to flow into the void defect portion 2 to be cured, so that the resin 5 is reliably filled in the entire void defect portion 2. It is possible to prevent the occurrence of resin unfilled portions. Therefore, it is possible to prevent the quality / strength of the composite material panel 1 after repair from being deteriorated. Moreover, since the bagging film 10 which is a flexible coating | covering material is employ | adopted, even when the composite material panel 1 has a complicated curved surface, the surrounding area | region of the opening part 2a can be easily coat | covered and sealed. Accordingly, since various panel shapes can be dealt with, the number of types of composite panel 1 that can be repaired is extremely large, and repairable parts are rarely limited in the composite panel 1, resulting in various defect situations. Can respond.

次に、図２を用いて、本発明の第２の実施の形態に係る欠損修理方法について説明する。本実施の形態においては、繊維強化樹脂複合材で構成された複合材パネル１の内部に形成された複数の空隙欠損部３に樹脂を充填して修理を行う方法について説明することとする。なお、本実施の形態においては、第１の実施の形態で説明した治具・装置と実質的に同一の治具・装置を採用しており、これらには第１の実施の形態と同一の符号を付すこととする。   Next, a defect repair method according to the second embodiment of the present invention will be described with reference to FIG. In the present embodiment, a method of repairing a resin by filling a plurality of void defect portions 3 formed inside a composite panel 1 made of a fiber reinforced resin composite material will be described. In the present embodiment, substantially the same jig / device as the jig / device described in the first embodiment is employed, and these are the same as those in the first embodiment. A reference numeral is attached.

まず、複合材パネル１の内部に形成された空隙欠損部３の個数、位置及び範囲を超音波検査により確認する（欠損部確認工程）。そして、確認結果に従って、複合材パネル１の表面１ａに穿孔位置を示す目印を描き、穿孔治具を用いて穿孔位置から空隙欠損部３に連通する連通孔４を穿設する（連通孔穿設工程）。この際、真空掃除機を用いて削り屑を吸引するようにする。連通孔穿設工程においては、図２に示すように、３個の空隙欠損部３の全てに連通する「１つ」の連通孔４を穿設している。また、連通孔４の内部を真空掃除機で吸引し溶剤洗浄して乾燥させておく。連通孔４の径の寸法は、樹脂の流入を許容しながら複合材パネル１の品質・強度を低下させないような値に設定する。   First, the number, position, and range of the void defect portions 3 formed inside the composite material panel 1 are confirmed by ultrasonic inspection (defect portion confirmation step). Then, according to the confirmation result, a mark indicating the drilling position is drawn on the surface 1a of the composite panel 1, and a communication hole 4 communicating from the drilling position to the gap defect portion 3 is drilled using a drilling jig (communication hole drilling). Process). At this time, the swarf is sucked using a vacuum cleaner. In the communication hole drilling step, as shown in FIG. 2, “one” communication hole 4 communicating with all of the three void defect portions 3 is drilled. Further, the inside of the communication hole 4 is sucked with a vacuum cleaner, washed with a solvent, and dried. The dimension of the diameter of the communication hole 4 is set to a value that does not deteriorate the quality and strength of the composite panel 1 while allowing the inflow of resin.

次いで、連通孔４を除く部分をマスキング用の保護膜で被覆する（マスキング工程）。次いで、複合材パネル１に形成された連通孔４の周囲領域をバギングフィルム１０で被覆し、被覆した部分の周囲にシーラント２０を配することにより、複合材パネル１とバギングフィルム１０とで囲まれる特定空間を気密状態とする（被覆密閉工程）。バギングフィルム１０で被覆する領域（連通孔４の周囲領域）は、複合材パネル１の形状や連通孔４の位置・大きさ等に応じて適宜決めることができる。被覆密閉工程においては、図２に示すように、複合材パネル１に形成された連通孔４の周囲領域と、バギングフィルム１０と、の間にピールプライ３０を配置する。また、バギングフィルム１０に設けられた真空口金１１の近傍に脱気用のガラスヤーン４０を配置しておく。   Next, the portion excluding the communication holes 4 is covered with a protective film for masking (masking process). Subsequently, the surrounding area of the communication hole 4 formed in the composite material panel 1 is covered with the bagging film 10, and the sealant 20 is disposed around the covered portion, so that the composite material panel 1 and the bagging film 10 are surrounded. The specific space is made airtight (coating sealing process). The region covered with the bagging film 10 (region around the communication hole 4) can be appropriately determined according to the shape of the composite panel 1, the position / size of the communication hole 4, and the like. In the covering and sealing step, as shown in FIG. 2, the peel ply 30 is disposed between the peripheral region of the communication hole 4 formed in the composite panel 1 and the bagging film 10. A degassing glass yarn 40 is disposed in the vicinity of the vacuum cap 11 provided on the bagging film 10.

次いで、真空金具１１に吸引装置を接続し、この吸引装置を用いて特定空間からの空気の排出（真空引き）を行い、特定空間内の圧力を所定の真空圧（例えば５６０mmHg）に設定する（真空引き工程）。また、連通孔４及び空隙欠損部２の内部に流入する樹脂５の流動性を維持する目的で、ヒートランプ５０を用いて空隙欠損部２を所定温度（例えば約５０℃）まで加熱し、その温度を維持しておく（欠損部加熱工程）。   Next, a suction device is connected to the vacuum fitting 11, and air is discharged (evacuated) from the specific space using this suction device, and the pressure in the specific space is set to a predetermined vacuum pressure (for example, 560 mmHg) ( Vacuuming step). Further, in order to maintain the fluidity of the resin 5 flowing into the communication hole 4 and the void defect portion 2, the void defect portion 2 is heated to a predetermined temperature (for example, about 50 ° C.) using a heat lamp 50, The temperature is maintained (defect portion heating step).

次いで、バギングフィルム１０の外側に、シーラント等を用いて壁を設けて樹脂溜まり６０を形成し、この樹脂溜まり６０の内部に、液状にした修理用の樹脂５を注入して溜める。この際、バギングフィルム１０を隔てて樹脂５を連通孔４に隣接させるようにする（樹脂溜め工程）。   Next, a resin reservoir 60 is formed by providing a wall using a sealant or the like on the outside of the bagging film 10, and the liquid repair resin 5 is injected and stored in the resin reservoir 60. At this time, the resin 5 is made adjacent to the communication hole 4 with the bagging film 10 interposed therebetween (resin storing step).

次いで、図２に示すように、バギングフィルム１０の連通孔４に隣接している部分に針７０を突き刺して樹脂流入孔１２を穿設することにより、樹脂溜まり６０に溜められた液状の樹脂５を、特定空間内の真空圧により、樹脂流入孔１２及び連通孔４を介して空隙欠損部３の内部に流入させる（樹脂流入工程）。樹脂流入工程は、樹脂５が空隙欠損部３の外部に漏出してピールプライ３０を濡らしていること（空隙欠損部３及び連通孔４が樹脂５で満たされたこと）を確認してから所定の含浸時間（例えば約２０分間）経過した時点で終了する。   Next, as shown in FIG. 2, the liquid resin 5 stored in the resin reservoir 60 is formed by piercing the needle 70 into a portion adjacent to the communication hole 4 of the bagging film 10 to pierce the resin inflow hole 12. Is caused to flow into the gap defect portion 3 through the resin inflow hole 12 and the communication hole 4 by a vacuum pressure in the specific space (resin inflow process). In the resin inflow step, it is confirmed that the resin 5 has leaked to the outside of the gap defect portion 3 and has wetted the peel ply 30 (the gap defect portion 3 and the communication hole 4 are filled with the resin 5). The process is terminated when the impregnation time (for example, about 20 minutes) has elapsed.

次いで、真空金具１１から吸引装置を取り外して漏洩止めを行った後、バギングフィルム１０や樹脂溜まり６０等をその位置に残したまま、連通孔４及び空隙欠損部３の内部に流入させた樹脂５を硬化させる（樹脂硬化工程）。樹脂硬化工程においては、樹脂溜まり６０の内部に残存する樹脂５もそのまま硬化させる。そして、樹脂５の硬化完了を確認した後、バギングフィルム１０から樹脂溜まり６０や針７０を取り外し、複合材パネル１からバギングフィルム１０や保護膜等を剥がして、複合材パネル１の表面に付着した余剰樹脂を除去する。その後、空隙欠損部３が修理され連通孔４が塞がれたことを目視及び超音波検査により確認して、作業を終了する。   Next, after removing the suction device from the vacuum fitting 11 to prevent leakage, the resin 5 that has flowed into the communication hole 4 and the gap defect 3 while leaving the bagging film 10, the resin reservoir 60, etc. in its position. Is cured (resin curing step). In the resin curing step, the resin 5 remaining inside the resin reservoir 60 is also cured as it is. After confirming the completion of the curing of the resin 5, the resin reservoir 60 and the needle 70 are removed from the bagging film 10, and the bagging film 10 and the protective film are peeled off from the composite material panel 1 and adhered to the surface of the composite material panel 1. Remove excess resin. Thereafter, it is confirmed by visual inspection and ultrasonic inspection that the gap defect portion 3 has been repaired and the communication hole 4 has been closed, and the operation is completed.

以上説明した実施の形態に係る欠損部修理方法においては、複合材パネル１の内部に形成された空隙欠損部３に連通する連通孔４を穿設し、この連通孔４の周囲領域をバギングフィルム１０で被覆し、複合材パネル１とバギングフィルム１０とで囲まれる特定空間を気密状態とする。そして、この特定空間から空気を排出して特定空間内の圧力を所定の真空圧とした後に、バギングフィルム１０の特定部分（連通孔４に隣接している部分）に樹脂流入孔１２を穿設することにより、バギングフィルム１０の外側に設けられた樹脂溜まり６０内の液状の樹脂５を、特定空間内の真空圧により空隙欠損部３内に流入させ、硬化させる。   In the defect repairing method according to the embodiment described above, a communication hole 4 communicating with the void defect 3 formed inside the composite panel 1 is formed, and a region around the communication hole 4 is formed in a bagging film. The specific space surrounded by the composite material panel 1 and the bagging film 10 is airtight. Then, after discharging air from the specific space and setting the pressure in the specific space to a predetermined vacuum pressure, a resin inflow hole 12 is formed in a specific portion of the bagging film 10 (a portion adjacent to the communication hole 4). By doing so, the liquid resin 5 in the resin reservoir 60 provided outside the bagging film 10 is caused to flow into the void defect portion 3 by the vacuum pressure in the specific space and is cured.

すなわち、特定空間内の空隙欠損部３から空気を排出した状態で、この空隙欠損部３に液状の樹脂５を流入させて硬化させるので、空隙欠損部３全体に樹脂５を確実に充填することができ、樹脂未充填部の発生を防止することができる。従って、修理後の複合材パネル１の品質・強度の低下を阻止することができる。また、柔軟な被覆材であるバギングフィルム１０を採用しているので、複合材パネル１が複雑な曲面を有する場合においても、連通孔４の周囲領域を容易に被覆して密閉することができる。この結果、多様なパネル形状に対応することができるので、修理可能な製品の種類がきわめて多くなるとともに、複合材パネル１において修理可能部位が限定されることが少なく、多様な欠損状況に対応することができる。   That is, since the liquid resin 5 is allowed to flow into the void defect portion 3 and harden in a state where air is discharged from the void defect portion 3 in the specific space, the resin 5 is surely filled into the void defect portion 3. It is possible to prevent the occurrence of resin unfilled portions. Therefore, it is possible to prevent the quality / strength of the composite material panel 1 after repair from being deteriorated. Moreover, since the bagging film 10 which is a flexible coating | covering material is employ | adopted, even when the composite material panel 1 has a complicated curved surface, the surrounding area | region of the communicating hole 4 can be easily coat | covered and sealed. As a result, since various panel shapes can be handled, the number of products that can be repaired is extremely large, and there are few limited repairable parts in the composite panel 1, and various types of defects can be handled. be able to.

また、以上説明した実施の形態に係る欠損部修理方法においては、空隙欠損部３に連通する連通孔を「１つ」穿設するだけで空隙欠損部３への樹脂５の充填が可能となるので、空隙欠損部３のサイズが小さくかつ複数の空隙欠損部３が近接した状態で形成されていても、効果的に修理を行うことができる。   Further, in the defect repairing method according to the embodiment described above, it is possible to fill the void defect portion 3 with the resin 5 only by making “one” communication hole communicating with the void defect portion 3. Therefore, even when the size of the gap defect portion 3 is small and a plurality of gap defect portions 3 are formed close to each other, the repair can be effectively performed.

なお、以上の実施の形態においては、繊維強化樹脂複合材で構成された複合材パネル１の空隙欠損部２、３に樹脂５を充填して修理を行う方法について説明したが、パネル以外の他の樹脂系複合材製品に形成された空隙欠損部に樹脂を充填して修理を行う際にも、本発明を適用することができる。   In the above embodiment, the method of filling the gap deficient portions 2 and 3 of the composite material panel 1 made of the fiber reinforced resin composite material with the resin 5 for repair is described. The present invention can also be applied when repairing by filling a resin into a void defect formed in the resin composite material product.

本発明の第１の実施の形態に係る欠損部修理方法を説明するための説明図である。It is explanatory drawing for demonstrating the defect | deletion part repair method which concerns on the 1st Embodiment of this invention. 本発明の第２の実施の形態に係る欠損部修理方法を説明するための説明図である。It is explanatory drawing for demonstrating the defect | deletion part repair method which concerns on the 2nd Embodiment of this invention. （ａ）は樹脂系複合材パネルの端部に形成された空隙欠損部の従来の修理方法を説明するための説明図であり、（ｂ）は従来の修理方法で修理された空隙欠損部の状態を示す説明図である。(A) is explanatory drawing for demonstrating the conventional repair method of the space | gap defect | deletion part formed in the edge part of a resin-type composite material panel, (b) is the space | gap defect | deletion part repaired with the conventional repair method. It is explanatory drawing which shows a state. 樹脂系複合材パネルの内部に形成された空隙欠損部の従来の修理方法を説明するための説明図である。It is explanatory drawing for demonstrating the conventional repair method of the space | gap defect | deletion part formed in the inside of a resin type composite material panel.

符号の説明Explanation of symbols

１ 複合材パネル（樹脂系複合材製品）
２ 空隙欠損部
２ａ 開口部
３ 空隙欠損部
４ 連通孔
５ 樹脂
１０ バギングフィルム（被覆材）
１２ 樹脂流入孔
６０ 樹脂溜まり 1 Composite panel (resin composite product)
2 void gap 2a opening 3 gap gap 4 communication hole 5 resin 10 bagging film (covering material)
12 Resin inflow hole 60 Resin pool

Claims (2)

樹脂系複合材製品に形成された、開口部を有する空隙欠損部に樹脂を充填して修理を行う欠損部修理方法であって、
前記開口部の周囲領域を真空口金が設けられた柔軟な被覆材で被覆して被覆した部分の周囲にシーラントを配することにより前記樹脂系複合材製品と前記被覆材とで囲まれる特定空間を気密状態とする被覆密閉工程と、
前記真空金具に吸引装置を接続し、この吸引装置を用いて前記特定空間から空気を排出して前記特定空間内の圧力を所定の真空圧とする真空引き工程と、
前記被覆材の外側に壁を形成して樹脂溜まりを設け、この樹脂溜まりに液状の樹脂を溜めることにより、前記被覆材を隔てて液状の樹脂を前記開口部に隣接させる樹脂溜め工程と、
前記被覆材の前記開口部に隣接している部分に針を突き刺して樹脂流入孔を穿設して、前記特定空間内の真空圧により、前記樹脂溜まりに溜められた液状の樹脂を前記樹脂流入孔及び前記開口部を介して前記空隙欠損部内に流入させる樹脂流入工程と、
前記空隙欠損部内に流入させた樹脂を硬化させる樹脂硬化工程と、
を備えることを特徴とする複合材の欠損部修理方法。 A defect repairing method for repairing by filling a resin into a void defect having an opening formed in a resin-based composite product,
A specific space surrounded by the resin-based composite material product and the covering material is provided by arranging a sealant around a portion where the surrounding area of the opening is covered with a flexible covering material provided with a vacuum cap. A coating sealing process for airtightness;
A vacuuming step of connecting a suction device to the vacuum fitting, exhausting air from the specific space using the suction device, and setting the pressure in the specific space to a predetermined vacuum pressure;
A resin reservoir step for forming a wall on the outside of the covering material to provide a resin reservoir, and storing the liquid resin in the resin reservoir, thereby allowing the liquid resin to be adjacent to the opening portion with the covering material interposed therebetween;
A needle is pierced into a portion adjacent to the opening of the covering material to form a resin inflow hole, and the liquid resin stored in the resin reservoir is injected into the resin by a vacuum pressure in the specific space. A resin inflow step for flowing into the void defect through the hole and the opening;
A resin curing step of curing the resin that has flowed into the void defect,
A method for repairing a defective portion of a composite material, comprising: 樹脂系複合材製品の内部に形成された空隙欠損部に樹脂を充填して修理を行う欠損部修理方法であって、
穿孔治具を用いて前記空隙欠損部に連通する連通孔を前記樹脂系複合材製品に穿設する連通孔穿設工程と、
前記連通孔の周囲領域を真空口金が設けられた柔軟な被覆材で被覆して被覆した部分の周囲にシーラントを配することにより前記樹脂系複合材製品と前記被覆材とで囲まれる特定空間を気密状態とする被覆密閉工程と、
前記真空金具に吸引装置を接続し、この吸引装置を用いて前記特定空間から空気を排出して前記特定空間内の圧力を所定の真空圧とする真空引き工程と、
前記被覆材の外側に壁を形成して樹脂溜まりを設け、この樹脂溜まりに液状の樹脂を溜めることにより、前記被覆材を隔てて液状の樹脂を前記連通孔に隣接させる樹脂溜め工程と、
前記被覆材の前記連通孔に隣接している部分に針を突き刺して樹脂流入孔を穿設して、前記特定空間内の真空圧により、前記樹脂溜まりに溜められた液状の樹脂を前記樹脂流入孔及び前記連通孔を介して前記空隙欠損部内に流入させる樹脂流入工程と、
前記空隙欠損部内に流入させた樹脂を硬化させる樹脂硬化工程と、
を備えることを特徴とする複合材の欠損部修理方法。 A defect repairing method for repairing by filling a resin into a void defect formed inside a resin composite material product,
A communication hole drilling step of drilling a communication hole communicating with the gap defect portion in the resin composite material product using a drilling jig ;
A specific space surrounded by the resin-based composite product and the covering material is provided by arranging a sealant around a portion where the surrounding area of the communication hole is covered with a flexible covering material provided with a vacuum cap. A coating sealing process for airtightness;
A vacuuming step of connecting a suction device to the vacuum fitting, exhausting air from the specific space using the suction device, and setting the pressure in the specific space to a predetermined vacuum pressure;
A resin reservoir step for forming a wall on the outside of the covering material to provide a resin reservoir, and storing the liquid resin in the resin reservoir to separate the liquid resin adjacent to the communication hole by separating the coating material;
A needle is pierced into a portion of the covering material adjacent to the communication hole to form a resin inflow hole, and the liquid resin stored in the resin reservoir is introduced into the resin inflow by the vacuum pressure in the specific space. A resin inflow step for allowing the resin to flow into the gap defect through the hole and the communication hole;
A resin curing step of curing the resin that has flowed into the void defect,
A method for repairing a defective portion of a composite material, comprising:
JP2005000145A 2005-01-04 2005-01-04 Repair method for defective parts of composite materials Expired - Fee Related JP4764011B2 (en)

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