JPS6224134A - Detection of permeating water for adhesive layer of sandwich structure board - Google Patents
Detection of permeating water for adhesive layer of sandwich structure boardInfo
- Publication number
- JPS6224134A JPS6224134A JP60163532A JP16353285A JPS6224134A JP S6224134 A JPS6224134 A JP S6224134A JP 60163532 A JP60163532 A JP 60163532A JP 16353285 A JP16353285 A JP 16353285A JP S6224134 A JPS6224134 A JP S6224134A
- Authority
- JP
- Japan
- Prior art keywords
- plate
- temperature
- honeycomb
- surface temperature
- board
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、サンドイッチ構造板の接着層における浸透水
の検出方法に係り、特にサンドイッチ構造板の表面温度
分布をカラー画像で表示して、サンドイッチ構造板の表
面温度の変化を計測することによりサンドイッチ構造板
接着層の浸透水を検出する方法に関する。Detailed Description of the Invention [Field of Industrial Application] The present invention relates to a method for detecting permeated water in the adhesive layer of a sandwich structural board, and in particular, the present invention relates to a method for detecting permeated water in the adhesive layer of a sandwich structural board. The present invention relates to a method for detecting water permeation in an adhesive layer of a sandwich structural board by measuring changes in surface temperature of the structural board.
飛行機のフラップ、車輪収納庫などには、心材がハニカ
ム状に形成されたサンドイッチ構造板（以下、ハニカム
板と称す°る）が採用されている。Sandwich structural boards (hereinafter referred to as honeycomb boards), in which the core material is formed into a honeycomb shape, are used in aircraft flaps, wheel storages, and the like.
このハニカム板は、一対のアルミ板の間に心材としてハ
ニカム状に形成された紙材を挿入し、紙材の両端をそれ
ぞれアルミ板に接着して構成されている。このハニカム
板は、軽量でかつ強度が高いという特徴を有している。This honeycomb board is constructed by inserting a honeycomb-shaped paper material as a core material between a pair of aluminum plates, and bonding both ends of the paper material to the aluminum plates. This honeycomb board is characterized by being lightweight and having high strength.
ところが、飛行機は環境の厳しいところを飛行するので
、温度、気圧の変化によってハニカム板内に水がたまり
、この水がハニカム板のアルミ板と紙材との接着部に浸
透し、ハニカム板が剥離する虞れがあった。そこで、ハ
ニカム板内に水がたまったか否かを計測するために、ハ
ニカム板に超音波を当て、超音波の伝送時間から水分の
有無を検出する方法が採用されていた。However, since airplanes fly in harsh environments, water accumulates inside the honeycomb board due to changes in temperature and pressure, and this water penetrates the bond between the aluminum plate and paper material of the honeycomb board, causing the honeycomb board to separate. There was a risk of it happening. Therefore, in order to measure whether water has accumulated in the honeycomb plates, a method has been adopted in which the honeycomb plates are exposed to ultrasonic waves and the presence or absence of water is detected from the transmission time of the ultrasonic waves.
しかしながら、この方法では、計測できる範囲が狭く、
ハニカム板に付着した水のある部位を検出するのが困難
であった。However, with this method, the measurable range is narrow;
It was difficult to detect areas with water attached to the honeycomb board.
本発明は、前記従来の課題に鑑みてなされたものであり
１、その目的は、サンドイッチ構造板のどの部位に水が
付着したか否かを、確実にかつ容易に計測することがで
きるサンドイッチ構造板の表面温度分布計測による接着
層における浸透水の検出方法を提供することにある。The present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to provide a sandwich structure in which it is possible to reliably and easily measure which part of the sandwich structure board water has adhered to. An object of the present invention is to provide a method for detecting permeated water in an adhesive layer by measuring the surface temperature distribution of a plate.
［問題点を解決するための手段〕
前記目的を達成するために１本発明は、第１図に示され
るように、サンドイッチ構造板を氷点以下に冷却しくス
テップ１００ ） 、この冷却処理後サンドイッチ構造
板の温度を氷点近くまで、高める熱処理をサンドイッチ
構造板に施しくステップ１０２ ） 、このあと、温度
上昇に伴うサンドイッチ構造板の表面温度を順次検出し
くステップ１０４）、この検出値を基にサンドイッチ構
造板の表面温度分布をカラー画像で表示する（ステップ
１０６）処理によってサンドイッチ構造板の表面温度分
布を計８１すすることにより、サンドイッチ構造板接着
層の浸透水を検出するようにしたものである。[Means for Solving the Problems] In order to achieve the above object, the present invention, as shown in FIG. The sandwich structure plate is subjected to heat treatment to raise the temperature of the plate to near the freezing point (step 102), and then the surface temperature of the sandwich structure plate is sequentially detected as the temperature rises (step 104), and based on this detected value, the sandwich structure is By displaying the surface temperature distribution of the board as a color image (step 106), the surface temperature distribution of the sandwich structure board is measured 81 times in total, thereby detecting water that has permeated into the adhesive layer of the sandwich structure board.
サンドイッチ構造板を氷点以下に冷却するとサンドイッ
チ構造板内に水分が付着しているときには、この水分が
氷結する。この冷却処理後、サンドイッチ構造板の温度
を氷点近くまで、高める処理をサンドイッチ構造板に施
す。このとき同時に温度上昇に伴うサンドイッチ構造板
の表面温度を順次検出する。表面温度の検出値を基にサ
ンドイッチ構造板の表面温度分布をカラー画像で表示す
ると、水分が付着した部位の温度は水分が付着していな
い部位よりも温度上昇が遅くなるため、水分が付着して
いた部位は他の部位とは異なる色で表示される。これに
より、サンドイッチ構造板内に水が付着していたか否か
を計測することができる。When the sandwich structure plate is cooled to a temperature below the freezing point, if there is any moisture adhering to the sandwich structure plate, this moisture will freeze. After this cooling treatment, the sandwich structure plate is subjected to a treatment that increases the temperature of the sandwich structure plate to near the freezing point. At the same time, the surface temperature of the sandwich structure plate is sequentially detected as the temperature increases. When the surface temperature distribution of a sandwich structure board is displayed as a color image based on the detected value of the surface temperature, the temperature rises slower in areas where moisture has adhered than in areas where moisture has not adhered, so moisture has adhered. The parts that were previously displayed are displayed in a different color from other parts. Thereby, it is possible to measure whether or not water has adhered to the inside of the sandwich structure plate.
以下、本発明の好適な実施例を図面に基づいて説明する
。Hereinafter, preferred embodiments of the present invention will be described based on the drawings.
第２図と第３図には、本発明が適用された実施例の構成
が示されている。第２図において、ハニカム板１０は、
一対のアルミ板１２．１４との間にハニカム状に形成さ
れた紙材１６が心材として挿入され１紙材１６の両端が
アルミ板１２．１４に接着されている。このハニカム板
１ｏの表面温度分布を計測するに際して、まず、ドライ
アイスまたは液体窒素により冷却された冷却風を送風す
る冷却装置１８を用いてハニカム板１０を氷点以下に冷
却する。ハニカム板１０を冷却するに際しては、ハニカ
ム板１０内に付着した水分が氷結する温度で冷却すると
ともに、ハニカム板１０を広範囲にわたって冷却する。2 and 3 show the configuration of an embodiment to which the present invention is applied. In FIG. 2, the honeycomb plate 10 is
A paper material 16 formed in a honeycomb shape is inserted as a core material between a pair of aluminum plates 12.14, and both ends of one paper material 16 are adhered to the aluminum plates 12.14. When measuring the surface temperature distribution of this honeycomb plate 1o, first, the honeycomb plate 10 is cooled to below the freezing point using a cooling device 18 that blows cooling air cooled by dry ice or liquid nitrogen. When cooling the honeycomb plate 10, the honeycomb plate 10 is cooled to a temperature at which water adhering to the honeycomb plate 10 freezes, and the honeycomb plate 10 is also cooled over a wide range.
冷却処理後、冷却装置１８を他の場所へ移動し、第３図
に示されるように加熱装置２ｏをハニカム板１０近傍ま
で移動する。そして複数の発熱ランプ２１を有する加熱
装置２０によってハニカム板１０の温度を氷点近くまで
高める熱処理をハニカム板１０に施す。すなわち、ハニ
カム板１０内に水分が冷却処理によって氷結したものが
解けない程度までハ、ニカム板１ｏの表面を加熱する。After the cooling process, the cooling device 18 is moved to another location, and the heating device 2o is moved to the vicinity of the honeycomb plate 10, as shown in FIG. Then, the honeycomb plate 10 is subjected to heat treatment to raise the temperature of the honeycomb plate 10 to near the freezing point using a heating device 20 having a plurality of heat generating lamps 21. That is, the surface of the honeycomb board 1o is heated to such an extent that the moisture that has frozen inside the honeycomb board 10 due to the cooling process cannot be thawed.
このとき同時に、光起電型赤外線センサ２２により温度
上昇に伴うハニカム板１０の表面温度を順次検出する。At the same time, the photovoltaic infrared sensor 22 sequentially detects the surface temperature of the honeycomb plate 10 as the temperature increases.
そして、赤外線センサ２２の検出値を基に、画像装置２
４ヘハニカム板１０の表面温度分布をカラー画像で表示
する。ハニカム板１０の表面温度分布は、第４図に示さ
れるように、温度に応じて色が異なるパターンで表示さ
れる。そして、ハニカム板１０に水分に水分が付着して
いて冷却処理によって水分が氷結したときには、ハニカ
ム板１０に熱処理を施しても、水分のある部位は氷結し
ているため、他の部位と比べて温度上昇が著しく遅くな
る。この現象から、表示画面２６には、水のある部分の
画像２８は他の部分の画像が温度上昇に伴って色が変化
しても、同じ色で表示される。これにより、ハニカム板
１０に水分が付着し′ているか否かを、確実にかつ容易
に計測することができる。Then, based on the detected value of the infrared sensor 22, the imaging device 2
The surface temperature distribution of the 4-sided honeycomb board 10 is displayed as a color image. As shown in FIG. 4, the surface temperature distribution of the honeycomb board 10 is displayed in a pattern with different colors depending on the temperature. When moisture adheres to the honeycomb plate 10 and the moisture freezes due to the cooling process, even if the honeycomb plate 10 is heat treated, the areas with moisture will still be frozen, so compared to other areas, the moisture will be frozen. Temperature rise is significantly slower. Because of this phenomenon, the image 28 of a portion of water is displayed in the same color on the display screen 26 even if the image of other portions changes color as the temperature rises. Thereby, it is possible to reliably and easily measure whether or not moisture is attached to the honeycomb plate 10.
また、冷却装置１８によってハニカム板１０を冷却する
とき、ハニカム板１０の形状に応じたドライアイス層を
形成し、このドライアイス層を３次元の方向で移動して
ハニカム板１０を冷却すれば、飛行機の機体に応じてハ
ニカム板１０を充分に冷却することができる。Furthermore, when the honeycomb plate 10 is cooled by the cooling device 18, a dry ice layer corresponding to the shape of the honeycomb plate 10 is formed, and this dry ice layer is moved in a three-dimensional direction to cool the honeycomb plate 10. The honeycomb plate 10 can be sufficiently cooled depending on the aircraft body.
また、加熱装置２０および赤外線センサ２２は、任意の
角度に調整可能であり、ハニカム板１０の各部位を加熱
できるとともに、ハニカム板１０の各部の表面温度を順
次検出することができる。Further, the heating device 20 and the infrared sensor 22 can be adjusted to any angle, and can heat each part of the honeycomb board 10, and can sequentially detect the surface temperature of each part of the honeycomb board 10.
以上説明したように、本発明によれば、サンドイッチ構
造板を氷点以下に冷却し、この冷却処理後サンドイッチ
構造板の温度を氷点近くまで高める熱処理を行い、温度
上昇に伴うサンドイッチ構造板の表面温度を順次検出し
、この検出値を基にサンドイッチ構造板の表面温度分布
をカラー画像で表示するようにしたため、サンドイッチ
構造板に水分が付着したか否かを確実にかつ容易に行う
ことができ、信頼性の向上および作業性の向上に寄与す
ることができるという優れた効果が得られる。As explained above, according to the present invention, the sandwich structural plate is cooled to below the freezing point, and after this cooling treatment, a heat treatment is performed to raise the temperature of the sandwich structural plate to near the freezing point, and the surface temperature of the sandwich structural plate due to the temperature increase is is sequentially detected, and the surface temperature distribution of the sandwich structure board is displayed in a color image based on the detected values, making it possible to reliably and easily determine whether or not moisture has adhered to the sandwich structure board. The excellent effect of contributing to improved reliability and workability can be obtained.
第１図は本発明を説明するためのフローチャート第２図
は本発明に係る冷却処理を説明するための図、第３図は
本発明に係る加熱処理を説明するため図、第４図はハニ
カム板１０の表面温度分布の表示例を示す図である。
１ｏ・・・・ハニカム板 １２，１４・・・・アルミ
板１６・・・・紙材 １８・・・・冷却装置２ｏ
・・・・加熱装置 ２２・・・・赤外線センサ２４・
・・・画像装置FIG. 1 is a flowchart for explaining the present invention. FIG. 2 is a diagram for explaining the cooling treatment according to the present invention. FIG. 3 is a diagram for explaining the heat treatment according to the present invention. FIG. 4 is a diagram for explaining the honeycomb treatment. 5 is a diagram showing an example of display of the surface temperature distribution of the board 10. FIG. 1o... Honeycomb board 12, 14... Aluminum plate 16... Paper material 18... Cooling device 2o
... Heating device 22 ... Infrared sensor 24 ...
...Imaging device
Claims (1)
却処理後サンドイッチ構造板の温度を氷点近くまで高め
る熱処理をサンドイッチ構造板に施すとともに、温度上
昇に伴うサンドイッチ構造板の表面温度を順次検出し、
この検出値を基にサンドイッチ構造板の表面温度分布を
カラー画像で表示することによりサンドイッチ構造板接
着層の浸透水を検出することを特徴とするサンドイッチ
構造板の接着層における浸透水の検出方法。(1) The sandwich structural plate is cooled to below the freezing point, and after this cooling treatment, the sandwich structural plate is subjected to a heat treatment that raises the temperature of the sandwich structural plate to near the freezing point, and the surface temperature of the sandwich structural plate is sequentially detected as the temperature rises. ,
A method for detecting permeated water in an adhesive layer of a sandwich structural board, characterized in that permeated water in the adhesive layer of a sandwich structural board is detected by displaying the surface temperature distribution of the sandwich structural board in a color image based on the detected value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60163532A JPS6224134A (en) | 1985-07-24 | 1985-07-24 | Detection of permeating water for adhesive layer of sandwich structure board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60163532A JPS6224134A (en) | 1985-07-24 | 1985-07-24 | Detection of permeating water for adhesive layer of sandwich structure board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6224134A true JPS6224134A (en) | 1987-02-02 |
Family
ID=15775664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60163532A Pending JPS6224134A (en) | 1985-07-24 | 1985-07-24 | Detection of permeating water for adhesive layer of sandwich structure board |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6224134A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63135592A (en) * | 1986-11-25 | 1988-06-07 | 日本フエルト株式会社 | Apparatus for measuring moisture content of running paper |
| EP0567078A2 (en) * | 1992-04-20 | 1993-10-27 | Kawasaki Jukogyo Kabushiki Kaisha | Method of and system for detecting moisture in honeycomb panel |
| US5640684A (en) * | 1994-08-08 | 1997-06-17 | Nippondenso Co., Ltd. | Radio data communication system comprising a common base radio station and handy radio terminals |
| US8176785B2 (en) | 2007-06-05 | 2012-05-15 | Institut National Polytechnique De Toulouse | Method and device for detecting water in a cellular structure |
-
1985
- 1985-07-24 JP JP60163532A patent/JPS6224134A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63135592A (en) * | 1986-11-25 | 1988-06-07 | 日本フエルト株式会社 | Apparatus for measuring moisture content of running paper |
| EP0567078A2 (en) * | 1992-04-20 | 1993-10-27 | Kawasaki Jukogyo Kabushiki Kaisha | Method of and system for detecting moisture in honeycomb panel |
| JPH0627061A (en) * | 1992-04-20 | 1994-02-04 | Kawasaki Heavy Ind Ltd | Moisture detecting method for honeycomb structure |
| US5640684A (en) * | 1994-08-08 | 1997-06-17 | Nippondenso Co., Ltd. | Radio data communication system comprising a common base radio station and handy radio terminals |
| DE19529156B4 (en) * | 1994-08-08 | 2005-09-29 | Denso Corp., Kariya | Radio data link system consisting of a common base radio station and mobile radio access station |
| US8176785B2 (en) | 2007-06-05 | 2012-05-15 | Institut National Polytechnique De Toulouse | Method and device for detecting water in a cellular structure |
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