JPH0818372B2 - How to join the cylinders - Google Patents
How to join the cylindersInfo
- Publication number
- JPH0818372B2 JPH0818372B2 JP62013517A JP1351787A JPH0818372B2 JP H0818372 B2 JPH0818372 B2 JP H0818372B2 JP 62013517 A JP62013517 A JP 62013517A JP 1351787 A JP1351787 A JP 1351787A JP H0818372 B2 JPH0818372 B2 JP H0818372B2
- Authority
- JP
- Japan
- Prior art keywords
- tubular body
- bag
- joining
- fluid
- impregnated
- 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.)
- Expired - Lifetime
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
- B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
- B29C65/483—Reactive adhesives, e.g. chemically curing adhesives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
- B29C65/50—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
- B29C65/5042—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like covering both elements to be joined
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/112—Single lapped joints
- B29C66/1122—Single lap to lap joints, i.e. overlap joints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
- B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
- B29C66/1224—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a butt joint-segment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
- B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
- B29C66/1226—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least one bevelled joint-segment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/52—Joining tubular articles, bars or profiled elements
- B29C66/522—Joining tubular articles
- B29C66/5221—Joining tubular articles for forming coaxial connections, i.e. the tubular articles to be joined forming a zero angle relative to each other
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
- B29C65/50—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
- B29C65/5007—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like characterised by the structure of said adhesive tape, threads or the like
- B29C65/5028—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like characterised by the structure of said adhesive tape, threads or the like being textile in woven or non-woven form
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
- B29C65/50—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
- B29C65/5042—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like covering both elements to be joined
- B29C65/505—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like covering both elements to be joined and placed in a recess formed in the parts to be joined, e.g. in order to obtain a continuous surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Adhesives Or Adhesive Processes (AREA)
Description
【発明の詳細な説明】 ［発明の目的］ （産業上の利用分野） 本発明は、例えば繊維強化プラスチック（以下FRPと
略称する）からなる筒体を微小ボイドや空気層を含まな
いように接合する方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention is to join a tubular body made of, for example, a fiber reinforced plastic (hereinafter abbreviated as FRP) so as not to include a minute void or an air layer. On how to do.
（従来の技術） 従来からFRP筒体の接合方法として、ねじ接合、フラ
ンジタイプねじ接合、接着剤による接合等の方法が知ら
れている。(Prior Art) Conventionally, as methods for joining FRP cylinders, methods such as screw joining, flange type screw joining, and joining with an adhesive have been known.
しかし、これらの方法で接合された接合部は、機械的
な密着または単に接着剤を介しただけの密着がなされる
だけであるため、いずれも接合部に空気層や微小な気泡
（ボイド）が残留する。このため電気的ストレスが加え
られる絶縁筒等をこれらの方法で接合した場合には、接
合部に残留する空気層やボイドが電気的弱点部となって
コロナ放電が生じやすくなり、ついには絶縁破壊を生じ
てしまうという問題があった。However, the joints joined by these methods are mechanically adhered or only adhered by an adhesive, so that air gaps and minute bubbles (voids) are formed in the joints. To remain. For this reason, when an insulating cylinder to which electrical stress is applied is joined by these methods, the air layers and voids remaining in the joint become electrical weak points and corona discharge easily occurs, and finally dielectric breakdown occurs. There was a problem that caused.
このような問題を回避するため、FRPの筒体をボイド
レスで接合する方法として、近年真空（減圧）雰囲気中
で接着剤により接着する方法や、硬化性樹脂を含浸させ
たガラスクロスのような繊維状補強材を接合部に巻いて
真空中に放置しこの硬化性樹脂を硬化させる方法等が提
案されている。In order to avoid such problems, as a method of joining the FRP cylinders by voidless, a method of bonding with an adhesive in a vacuum (reduced pressure) atmosphere in recent years, or a fiber such as glass cloth impregnated with a curable resin There has been proposed a method in which a reinforcing material is wound around the joint and left in a vacuum to cure the curable resin.
しかしながら、これらの方法のうち前者の真空下で接
着させる方法においては、作業が難しい上に、充分な強
度を有する接合部が得られないという問題があった。However, among the above methods, the former method of bonding under vacuum has a problem that the work is difficult and a joint having sufficient strength cannot be obtained.
また後者の方法においては、接合部のボイドを完全に
抜くことができない上に、樹脂が筒体の内面に漏出して
硬化し、特に小径の筒体の場合には内側の仕上げが難く
なるという問題があった。In addition, in the latter method, voids in the joint cannot be completely removed, and the resin leaks to the inner surface of the cylinder and hardens, making it difficult to finish the inside especially in the case of a small-diameter cylinder. There was a problem.
（発明が解決しようとする問題点） このように従来の方法では、FRP等の筒体、特に小径
の筒体をボイドレスに接合することはきわめて困難であ
った。(Problems to be Solved by the Invention) As described above, according to the conventional method, it is extremely difficult to bond a tubular body such as FRP, particularly a tubular body having a small diameter to the voidless.
本発明はこのような問題を解決するためになされたも
ので、ボイドを含まず電気的、機械的に充分な強度を有
するように接合する筒体の接合方法を提供することを目
的とする。The present invention has been made to solve such a problem, and an object of the present invention is to provide a method for joining a cylindrical body that does not contain voids and has sufficient electrical and mechanical strength.
［発明の構成］ （問題点を解決するための手段） 本発明の筒体の接合方法は、接合すべき筒体の端面を
突き合せて保持し、その突き合せ部の外周に含浸基材の
層を設けるとともに、前記筒体の内側に流体密の袋体を
挿入し、その内部に流体を圧入して前記筒体の突き合せ
部の内面に圧着させた後、真空雰囲気中で前記含浸基材
に硬化性樹脂を含浸させ硬化させることを特徴としてい
る。[Structure of the Invention] (Means for Solving the Problems) In the method for joining cylinders of the present invention, the end surfaces of the cylinders to be joined are butted against each other, and the impregnated base material is provided on the outer periphery of the butted portion. A layer is provided and a fluid-tight bag is inserted into the inside of the cylinder, and a fluid is press-fitted into the bag to press it against the inner surface of the abutting portion of the cylinder, and then the impregnating group in a vacuum atmosphere. It is characterized in that the material is impregnated with a curable resin and cured.
本発明の接合方法は、FRP筒体の接合の他、金属筒
体、その他の硬化性樹脂により接合可能な任意の素材か
らなる筒体の接合に適用可能である。INDUSTRIAL APPLICABILITY The joining method of the present invention is applicable to joining of FRP cylinders, as well as joining of metal cylinders and other cylinders made of any material that can be bonded with a curable resin.
また本発明において、筒体の突き合せ部の外周に積層
する含浸基材としては、ガラスクロスのように、FRPの
補強材として通常使用されている抗張力の高い繊維質の
ものが適している。またこの含浸基材に真空下で含浸さ
せる硬化性樹脂としては、エポキシ樹脂のような公知の
含浸用硬化性樹脂が適している。Further, in the present invention, as the impregnated base material laminated on the outer periphery of the butted portion of the cylindrical body, a fiber material having a high tensile strength, which is usually used as a reinforcing material for FRP, such as glass cloth, is suitable. A known curable resin for impregnation such as epoxy resin is suitable as the curable resin for impregnating the impregnated base material under vacuum.
本発明において突き合せ部の内側に挿入される袋体
は、伸縮性の良好なゴムまたはプラスチック等で形成さ
れ、内部へ流体を圧入することにより外側に膨脹するも
のであればどのような形状のものでも使用可能である。In the present invention, the bag body to be inserted inside the abutting portion is formed of rubber or plastic having good stretchability, and may have any shape as long as it can be expanded outward by press-fitting a fluid into the inside. Anything can be used.
例えば第４図（ａ）に示すように、全体が伸縮性の良
好なゴムまたはプラスチックで形成された給排気口11を
有する袋12でもよく、同図（ｂ）に示すように、突き合
せ部の内側に該当する部分だけが伸縮性の良好なゴムま
たはプラスチック製の筒体13で形成され前後が一端側を
封止した剛性のパイプ14で形成されているものでもよ
く、あるいは同図（ｃ）に示すように、一端側を封止し
た剛性のパイプ15の中央に給排気口となる穴16をあけ、
この穴16の外周に伸縮性の良好なゴムまたはプラスチッ
ク製の筒体17を被せ穴16の前後をパイプ15に流体密に固
着させたものでもよい。For example, as shown in FIG. 4 (a), a bag 12 having an air supply / exhaust port 11 entirely made of rubber or plastic having good elasticity may be used, and as shown in FIG. 4 (b), a butt portion may be formed. It is also possible that only the portion corresponding to the inner side of the tube is formed of a rubber or plastic tube body 13 having good elasticity and the front and rear sides are formed of a rigid pipe 14 with one end side sealed, or the same figure (c). ), A hole 16 that serves as an air supply / exhaust port is opened in the center of the rigid pipe 15 with one end sealed,
The outer circumference of the hole 16 may be covered with a tube body 17 made of rubber or plastic having good elasticity and the front and rear of the hole 16 may be fluid-tightly fixed to the pipe 15.
本発明では、このような袋体を筒体の内側の突き合せ
部に挿入し、この袋体の内部に空気等の流体を圧入して
内圧をかけ、袋体を膨脹させ筒体の突き合せ部の内側に
圧着させてこの接合部をシールし、その後常法により筒
体接合部外周の含浸基材に硬化性樹脂を含浸し硬化させ
る。In the present invention, such a bag body is inserted into the abutting portion of the inside of the tubular body, and a fluid such as air is press-fitted into the inside of the bag body to apply an internal pressure, and the bag body is inflated to bring the tubular body into contact with each other. The joint is sealed by pressure-bonding to the inside of the portion, and then the impregnated base material on the outer periphery of the cylindrical joint is impregnated with a curable resin and cured by a conventional method.
（作用） 本発明においては、筒体の突き合せ部の外側に繊維状
補強材の層を設けるとともに、突き合せ部を内側から流
体密の袋体を挿入しその内部に流体を圧入してシールし
ながら含浸基材に硬化性樹脂を真空含浸させるので、含
浸基材中は勿論突き合せ部の空気層も完全に硬化性樹脂
で置換されてボイドを全く含まない接合部を形成させる
ことができる。したがって本発明により接合された接合
部は、機械的強度が高く、しかも電気的特性に優れてい
る。(Operation) In the present invention, a layer of fibrous reinforcing material is provided on the outside of the abutting portion of the tubular body, and a fluid-tight bag body is inserted from the inside of the abutting portion, and a fluid is press-fitted into the inside to seal the bag. However, since the impregnated base material is vacuum-impregnated with the curable resin, not only the air layer in the impregnated base material but also the air layer at the abutting portion can be completely replaced with the curable resin to form a void-free joint portion. . Therefore, the joined portion joined according to the present invention has high mechanical strength and excellent electrical characteristics.
また、含浸された樹脂が筒体の内周面まではみ出すこ
とがないので、内側からの仕上げが不要もしくは容易と
なる。Further, since the impregnated resin does not protrude to the inner peripheral surface of the cylindrical body, finishing from the inside is unnecessary or easy.
（実施例） 以下、本発明の実施例を図面に基いて説明する。(Example) Hereinafter, the Example of this invention is described based on drawing.
第１図に示すように、まず接合すべき一枚のガラスエ
ポキシのようなボイドレスFRPからなる円筒体１、１′
の端面を、ずれずに互いに嵌合するようテーパーをつけ
て切削加工し、さらに突き合せ部に沿って凹溝1aを形成
した後これらの端面を突き合せる。そしてこれらの円筒
体１、１′の他端にそれぞれ、中央と周辺部に貫通孔を
有する２枚の端板２、２′を当て、中央の貫通孔にスタ
ッド３を通して、端板２、２′を相互に締付け固定す
る。As shown in FIG. 1, first, a cylindrical body 1, 1'made of a voidless FRP such as a glass epoxy to be joined.
The end faces of the above are tapered and cut so that they fit into each other without being displaced, and further, the groove 1a is formed along the abutting portion, and then these end faces are abutted. Then, two end plates 2, 2'having through holes at the center and the peripheral portion are respectively applied to the other ends of these cylindrical bodies 1, 1 ', and the studs 3 are passed through the through holes at the center to form the end plates 2, Tighten and fasten each other.
次に第２図に拡大して示すように、FRP円筒体１、
１′突き合せ部の外周面の凹溝1aに、電気絶縁用のガラ
スクロス４を表面が他の部分から若干盛上がるように巻
き突け、第３図に示すように、端板２、２′周辺部の孔
にスタッド５を通して締付固定し、先に中央の孔に通し
たスタッド３を抜きはずす。さらにFRP円筒体１、１′
外周面のガラスクロス４の巻回部の下側に断面Ｌ字状の
樹脂溜め６を取着し、円筒体１、１′の内側にゴム製の
袋７を挿入し、袋７の内部に5Kg/cm2の空気を圧入し
て、袋７を円筒体１、１′の内面に強く押しつける。こ
の状態を保ちながら、円筒体１、１′を真空（減圧）雰
囲気中に置き、樹脂溜め６にエポキシ樹脂を注入しガラ
スクロス４にエポキシ樹脂８を含浸させた後、所定の温
度に加熱して樹脂を硬化させる。硬化後、端板２、
２′、樹脂溜め６、袋７などをはずしてから、エポキシ
樹脂含浸ガラスクロス部の外周に円筒体１、１′と同じ
外径となるよう仕上げ加工を施す。このようにして得ら
れたFRP接合円筒体は、接合部の外観が良好でボイド等
がなく、FRPで一体に成形したものとほぼ等しい電気
的、機械的強度を有している。Next, as shown enlarged in FIG. 2, the FRP cylinder 1,
1'A glass cloth 4 for electrical insulation is wound in a groove 1a on the outer peripheral surface of the abutting portion so that the surface rises slightly from the other portion, and as shown in FIG. The stud 5 is passed through the hole of the portion to be fixed by tightening, and the stud 3 which is first passed through the central hole is removed. Furthermore, FRP cylinder 1, 1 '
A resin reservoir 6 having an L-shaped cross section is attached to the lower side of the winding portion of the glass cloth 4 on the outer peripheral surface, a rubber bag 7 is inserted inside the cylindrical bodies 1 and 1 ', and the inside of the bag 7 is inserted. by press-fitting the air 5 kg / cm 2, pressing strongly the bag 7 on the inner surface of the cylindrical body 1, 1 '. While maintaining this state, the cylindrical bodies 1 and 1'are placed in a vacuum (reduced pressure) atmosphere, epoxy resin is injected into the resin reservoir 6 to impregnate the glass cloth 4 with the epoxy resin 8, and then heated to a predetermined temperature. To cure the resin. After curing, end plate 2,
After removing 2 ', the resin reservoir 6, the bag 7 and the like, the outer periphery of the epoxy resin-impregnated glass cloth portion is subjected to finishing processing so as to have the same outer diameter as the cylindrical body 1, 1'. The FRP-bonded cylindrical body thus obtained has a good appearance of the bonded portion, has no voids, etc., and has substantially the same electrical and mechanical strength as that integrally molded by FRP.
なお以上の実施例では、本発明をFRP円筒体の接合に
適用した例について説明したが、本発明はこのような実
施例に限定されるものではなく、金属その他の筒体の接
合にも使用可能である。In the above examples, the present invention has been described as an example applied to the joining of FRP cylindrical bodies, but the present invention is not limited to such examples, and is also used for joining metal and other tubular bodies. It is possible.
［発明の効果］ 以上の説明から明らかなように、本発明の方法によれ
ばボイドがなく電気的、機械的強度の高い筒体の接合部
が得られる。[Effects of the Invention] As is apparent from the above description, according to the method of the present invention, it is possible to obtain a joint portion of a cylindrical body having no void and having high electrical and mechanical strength.
また筒体の内周面への樹脂のはみ出しがなく、内側の
仕上げを省略することもできるので、小径の筒体をも接
合することができる。Further, since the resin does not squeeze out to the inner peripheral surface of the tubular body and the finishing of the inside can be omitted, it is possible to join even a tubular body having a small diameter.
第１図は本発明の実施例の最初の工程を説明するための
断面図、第２図は第１図におけるＡ部の拡大図、第３図
は本発明の実施例の第２の工程を示す断面図、第４図
（ａ）〜（ｃ）は本発明に使用される袋体の例を概略的
に示す断面図である。 １、１′……FRP円筒体 ２、２′……端板 ３、５……スタッド ４……ガラスクロス ６……樹脂溜め ７……ゴム製袋 ８……エポキシ樹脂FIG. 1 is a sectional view for explaining the first step of the embodiment of the present invention, FIG. 2 is an enlarged view of part A in FIG. 1, and FIG. 3 is a second step of the embodiment of the present invention. The sectional views shown in FIGS. 4A to 4C are sectional views schematically showing an example of the bag body used in the present invention. 1, 1 '... FRP cylinder 2, 2' ... end plate 3,5 ... stud 4 ... glass cloth 6 ... resin reservoir 7 ... rubber bag 8 ... epoxy resin
Claims (4)
し、その突き合せ部の外周に含浸基材の層を設けるとと
もに、前記筒体の内側に流体密の袋体を挿入し、その内
部に流体を圧入して前記筒体の突き合せ部の内面に圧着
させた後、真空雰囲気中で前記含浸基材に硬化性樹脂を
含浸させ硬化させることを特徴とする筒体の接合方法。1. An end face of a tubular body to be joined is butted and held, a layer of an impregnated base material is provided on the outer periphery of the butted portion, and a fluid-tight bag is inserted inside the tubular body. A method of joining cylinders, characterized in that a fluid is press-fitted into the interior of the cylinder and pressure-bonded to the inner surface of the abutting portion of the cylinder, and then the impregnated base material is impregnated with a curable resin in a vacuum atmosphere and cured. .
許請求の範囲第１項記載の筒体の製造方法。2. The method for producing a tubular body according to claim 1, wherein the tubular body is a fiber reinforced plastic tubular body.
ックからなる特許請求の範囲第１項または第２項記載の
筒体の接合方法。3. The method for joining cylinders according to claim 1 or 2, wherein the bag is made of rubber or plastic having good elasticity.
の範囲第１項ないし第３項のいずれか１項記載の筒体の
接合方法。4. The method of joining cylinders according to claim 1, wherein the fluid press-fitted into the bag is air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62013517A JPH0818372B2 (en) | 1987-01-23 | 1987-01-23 | How to join the cylinders |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62013517A JPH0818372B2 (en) | 1987-01-23 | 1987-01-23 | How to join the cylinders |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63182388A JPS63182388A (en) | 1988-07-27 |
| JPH0818372B2 true JPH0818372B2 (en) | 1996-02-28 |
Family
ID=11835343
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62013517A Expired - Lifetime JPH0818372B2 (en) | 1987-01-23 | 1987-01-23 | How to join the cylinders |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0818372B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3968895B2 (en) * | 1998-09-30 | 2007-08-29 | 東レ株式会社 | Method for manufacturing FRP structure |
| JP5030575B2 (en) * | 2006-01-10 | 2012-09-19 | 大陽日酸株式会社 | FRP cryostat manufacturing method and FRP cryostat |
-
1987
- 1987-01-23 JP JP62013517A patent/JPH0818372B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63182388A (en) | 1988-07-27 |
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