JPH05293887A - Manufacture of lining pipe joint - Google Patents
Manufacture of lining pipe jointInfo
- Publication number
- JPH05293887A JPH05293887A JP4099402A JP9940292A JPH05293887A JP H05293887 A JPH05293887 A JP H05293887A JP 4099402 A JP4099402 A JP 4099402A JP 9940292 A JP9940292 A JP 9940292A JP H05293887 A JPH05293887 A JP H05293887A
- Authority
- JP
- Japan
- Prior art keywords
- lining pipe
- flange
- pipe joint
- lining
- manufacturing
- 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.)
- Granted
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
- B29C57/00—Shaping of tube ends, e.g. flanging, belling or closing; Apparatus therefor, e.g. collapsible mandrels
- B29C57/02—Belling or enlarging, e.g. combined with forming a groove
- B29C57/04—Belling or enlarging, e.g. combined with forming a groove using mechanical means
- B29C57/06—Belling or enlarging, e.g. combined with forming a groove using mechanical means elastically deformable
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
- Flanged Joints, Insulating Joints, And Other Joints (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、給水，給湯，空調管等
に用いるライニング管継手に関し、特には、管端にフラ
ンジを設けた管継手の構造方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lining pipe joint used for water supply, hot water supply, air conditioning pipes, etc., and more particularly to a method for constructing a pipe joint having a flange at its pipe end.
【０００２】[0002]
【従来の技術】給水，給湯，空調管等に用いるライニン
グ管の配管において用いられるフランジ付きの管継手の
一種に、先端フレア部とビード部を備えてフランジを挟
んだ構造の管継手がある。このような構造の管継手の製
造方法としては、実開平２−３７２１７号公報に開示さ
れているように、金属管の内面にローラーを押し当てて
一周回転させてビード部を形成し、フランジを金属管に
嵌める。このとき、フランジと金属管との間には僅かな
隙間ができる。2. Description of the Related Art One type of flanged pipe joints used in piping for lining pipes used for water supply, hot water supply, air-conditioning pipes, etc. is a pipe joint having a flared end portion and a bead portion with a flange sandwiched therebetween. As a method of manufacturing a pipe joint having such a structure, as disclosed in Japanese Utility Model Laid-Open No. 2-37217, a roller is pressed against the inner surface of a metal pipe and rotated once to form a bead portion, and a flange is formed. Fit in a metal tube. At this time, a slight gap is formed between the flange and the metal tube.
【０００３】そして、管端部に先端が円錐状のポンチを
押し当てて拡径した後に、先端が平らなポンチを押し当
てて鍔状の先端フレアー部を形成する。その後に、金属
管内に樹脂層を加熱硬化させて接着剤で貼り付けるか、
樹脂粉体を溶融させてライニング加工を行っていた。Then, a punch having a conical tip is pressed against the tube end portion to expand the diameter, and then a punch having a flat tip is pressed to form a flare portion having a brim. After that, heat the resin layer in the metal tube and attach it with an adhesive, or
Lining was performed by melting the resin powder.
【０００４】[0004]
【発明が解決しようとする課題】従来の上述したフラン
ジ付き管継手の製造方法においては、ビード部の成形
と、先端フレア部の成形との、別工程が必要であったの
で、加工工数が多く、製造工程が煩雑になるという問題
があった。また、円錐状のポンチを押し当てて拡径した
後に、先端が平らなポンチを押し当てて鍔状の先端フレ
ア部を形成するとき、図５に示したように、先端フレア
部の根元部分が管の内側へ押し出され、小径部100 が形
成されてしまうという問題があった。In the conventional method for manufacturing a flanged pipe joint described above, a separate process for forming the bead portion and forming the tip flare portion is required, so that the number of processing steps is large. However, there is a problem that the manufacturing process becomes complicated. Further, when a cone-shaped punch is pressed to expand the diameter and then a punch having a flat tip is pressed to form a brim-shaped tip flare portion, as shown in FIG. 5, the root portion of the tip flare portion is There was a problem that the small diameter portion 100 was formed by being pushed out inside the pipe.
【０００５】このような小径部100 が形成されると、管
継手の外観が好ましくないとともに、管内を流体に対す
る圧力損失が大きくなるという問題があった。また、従
来の上述したフランジ付き管継手の製造方法では、フラ
ンジは回転不可能であり、ルーズフランジを備えた管継
手を製造することは無理であった。When such a small diameter portion 100 is formed, there is a problem that the appearance of the pipe joint is not preferable and the pressure loss against the fluid in the pipe increases. Further, in the conventional method for manufacturing a flanged pipe joint described above, the flange cannot rotate, and it has been impossible to produce a pipe joint provided with a loose flange.
【０００６】そこで、本発明においては、フランジもし
くはルーズフランジを備えたライニング管継手を効率よ
く製造することができるとともに、外観上も圧力損失上
も優れたライニング管継手を製造することができるライ
ニング管継手の製造方法を提供することを目的としてい
る。Therefore, in the present invention, a lining pipe joint having a flange or a loose flange can be efficiently manufactured, and a lining pipe joint excellent in appearance and pressure loss can be manufactured. It is an object of the present invention to provide a method for manufacturing a joint.
【０００７】[0007]
【課題を解決するための手段】上記目的に鑑みてなされ
た本発明のライニング管継手の製造方法においては、ラ
イニング管の管端に形成された鍔状の先端フレア部とビ
ード部とによってフランジを挟んでなるライニング管継
手の製造方法において、ライニング管にフランジを予め
外嵌しておき、先端フレア部とビード部以外の部分を金
型で押さえて膨張を禁止した状態で、前記ライニング管
の内部に成形ゴムを挿入して、この成形ゴムをライニン
グ管の軸方向に圧縮し、前記成形ゴムをライニング管の
軸に垂直な方向に膨張させることによって、ビード部と
先端フレア部とを同時に成形するという手段を講じた。In the method of manufacturing a lining pipe joint of the present invention made in view of the above object, a flange is formed by a flange-shaped tip flare portion and a bead portion formed at the pipe end of the lining pipe. In the method for manufacturing a lining pipe joint formed by sandwiching, a flange is externally fitted to the lining pipe in advance, and a portion other than the tip flare portion and the bead portion is pressed by a mold to prohibit expansion, and the inside of the lining pipe is A molding rubber is inserted into the tube, the molding rubber is compressed in the axial direction of the lining tube, and the molding rubber is expanded in a direction perpendicular to the axis of the lining tube, whereby the bead portion and the tip flare portion are simultaneously molded. I took the measure.
【０００８】[0008]
【作用】上記構成の本発明のライニング管継手の製造方
法によれば、先端フレア部とビード部以外の部分を金型
で押さえて膨張を禁止した状態で、前記ライニング管の
内部に挿入した成形ゴムを、ライニング管の軸に垂直な
方向に膨張させるので、ライニング管が拡径して、ビー
ド部が成形されると同時に、先端フレア部が鍔状に成形
されるのである。According to the method of manufacturing a lining pipe joint of the present invention having the above-described structure, the molding is performed by inserting the lining pipe into the inside of the lining pipe in a state where the portions other than the tip flare portion and the bead portion are pressed by the mold to prevent expansion. Since the rubber is expanded in the direction perpendicular to the axis of the lining pipe, the diameter of the lining pipe is expanded and the bead portion is formed, and at the same time, the tip flare portion is formed in a brim shape.
【０００９】このようにして成形された鍔状の先端フレ
ア部とビード部とによってフランジが挟まれ、ライニン
グ管継手が製造されるのである。The flange is sandwiched between the brim-shaped flare portion and the bead portion, which are molded in this manner, to manufacture the lining pipe joint.
【００１０】[0010]
【実施例】以下に本発明のライニング管継手の製造方法
を、その実施例を示した図面に基づいて詳細に説明す
る。図１は本発明のライニング管継手の製造方法で製造
するライニング管継手の一例の側面断面図、図２，図
３，図４は本発明のライニング管継手の製造方法の一実
施例の工程説明図である。The method for manufacturing a lining pipe joint of the present invention will be described in detail below with reference to the drawings showing the embodiments. FIG. 1 is a side sectional view of an example of a lining pipe joint manufactured by the method for manufacturing a lining pipe joint of the present invention, and FIGS. 2, 3 and 4 are process explanations of an embodiment of a method for manufacturing a lining pipe joint of the present invention. It is a figure.
【００１１】図１に基づいて、本発明のライニング管継
手の製造方法で製造するライニング管継手の一例の構造
を以下に説明する。１はライニング管、２はビード部、
３は先端フレアー部、４はフランジである。前記ライニ
ング管１は、金属管１１の内面に樹脂層１２がライニン
グ加工されたものである。図示したように、このライニ
ング管継手１０は、前記ビード部２と前記先端フレアー
部３とによってフランジ４が挟まれた構造となってい
る。The structure of an example of a lining pipe joint manufactured by the method for manufacturing a lining pipe joint according to the present invention will be described below with reference to FIG. 1 is a lining tube, 2 is a bead part,
Reference numeral 3 is a tip flare portion, and 4 is a flange. The lining pipe 1 has a resin layer 12 lined on the inner surface of a metal pipe 11. As illustrated, the lining pipe joint 10 has a structure in which a flange 4 is sandwiched between the bead portion 2 and the tip flare portion 3.
【００１２】なお、前記先端フレアー部３の外径は前記
フランジ４のボルト穴４１の位置より小さくした。The outer diameter of the tip flare portion 3 is smaller than the position of the bolt hole 41 of the flange 4.
【００１３】図２，図３，図４に基づいて、前記ライニ
ング管継手１０の製造工程を以下に説明する。まず、フ
ランジ４を金型Ｂにセットし、ライニング管１を前記金
型Ｂ内に管端が当たるまで挿入する。次に、二ツ割りの
金型Ａ１，金型Ａ２を閉じ、ライニング管１の内部に成
形ゴム４０を装着し、ロッド４１をセットする。The manufacturing process of the lining pipe joint 10 will be described below with reference to FIGS. 2, 3, and 4. First, the flange 4 is set in the mold B, and the lining pipe 1 is inserted into the mold B until the pipe end hits. Next, the mold A1 and the mold A2 that are split in two are closed, the molding rubber 40 is mounted inside the lining pipe 1, and the rod 41 is set.
【００１４】前記金型Ａは、金型Ａ１と金型Ａ２の二ツ
割りになっており、内周面には、ビード部２を成形する
ための溝部２１と、金型凸部２２とが形成されている。
前記溝部２１の底部分における内径は、前記フランジ４
の内径より大径とし、前記溝部２１の溝幅は、ライニン
グ管の金属管の強度に応じて設定する。例えば、鋼管と
グラフトＰＥ樹脂からなるライニング管であって、外径
が114.3 mm、鋼管の肉厚が1.6 mm、ＰＥ樹脂の肉厚が2.
9 mmの場合には、溝幅は15mm以上とすると、先端フレア
部３が拡径して成形されるときの、成形ゴム４０の膨張
力で所期の形状のビード部２が形成された。なお、前記
金型凸部２２の部分の内径は、フランジ４の内径より僅
かに小径とした。The mold A is divided into two parts, a mold A1 and a mold A2, and a groove portion 21 for molding the bead portion 2 and a mold convex portion 22 are formed on the inner peripheral surface. Has been formed.
The inner diameter of the bottom portion of the groove portion 21 is equal to that of the flange 4
The diameter of the groove portion 21 is set to be larger than the inner diameter thereof, and the groove width of the groove portion 21 is set according to the strength of the metal pipe of the lining pipe. For example, a lining pipe made of steel pipe and graft PE resin, the outer diameter is 114.3 mm, the thickness of the steel pipe is 1.6 mm, the thickness of PE resin is 2.
In the case of 9 mm, if the groove width is 15 mm or more, the bead portion 2 having the desired shape is formed by the expansive force of the molding rubber 40 when the flared tip portion 3 is expanded and molded. The inner diameter of the mold convex portion 22 was slightly smaller than the inner diameter of the flange 4.
【００１５】前記金型Ｂは、先端フレア部３を成形する
ための凹部空間３１と、フランジ４のボルト穴４１に嵌
合して位置決めとフランジの支持を行うフランジ支持用
凸部３２とが形成されている。前記凹部空間３１の内面
は、成形ゴム４０が変形するときに端部が滑りやすいよ
うに鏡面状に仕上げられている。前記成形ゴム４０は硬
度７０°〜９５°のウレタンゴムとしたが、これに限ら
ず耐荷重性が優れ、大きく変形しても復元性の優れた弾
性体であればよい。The mold B is formed with a concave space 31 for molding the tip flare portion 3 and a flange supporting convex portion 32 which is fitted in the bolt hole 41 of the flange 4 for positioning and supporting the flange. Has been done. The inner surface of the recess space 31 is mirror-finished so that the end of the molded rubber 40 is slippery when deformed. Although the molded rubber 40 is urethane rubber having a hardness of 70 ° to 95 °, the molded rubber 40 is not limited to this, and may be an elastic body having excellent load resistance and excellent resilience even when largely deformed.
【００１６】以上のように、ライニング管１とフランジ
４を金型Ａ，Ｂにセットして、ロッド４１に約４０トン
の成形荷重をかけて、成形ゴム４０に軸方向の圧力を加
えると、成形ゴム４０は軸に垂直な方向に膨張して、ラ
イニング管１を押し広げる。このとき、ライニング管１
が拡径可能な部分は、金型Ａの溝部２１の部分と、金型
Ｂの凹部空間３１の部分と、金型凸部２２およびフラン
ジ４との僅かな隙間だけである。As described above, when the lining pipe 1 and the flange 4 are set in the molds A and B, a molding load of about 40 tons is applied to the rod 41, and an axial pressure is applied to the molded rubber 40, The molded rubber 40 expands in the direction perpendicular to the axis and pushes the lining pipe 1 wide. At this time, the lining pipe 1
The area where the diameter can be increased is only a small gap between the groove 21 of the mold A, the concave space 31 of the mold B, the convex part 22 of the mold and the flange 4.
【００１７】よって、図３に示すように、凹部空間３１
内のライニング管１の管端は略直角状にまで拡径し鍔状
の先端フレア部３が形成され、溝部２１のライニング管
１は少々拡径しビード部２が形成される。そして、前記
金型凹部２２の内径はフランジ４の内径より小径となっ
ているので、この部分のライニング管１は管端に向かっ
て末広がりのテーパ状に形成される。Therefore, as shown in FIG.
The pipe end of the inner lining pipe 1 is expanded to a substantially right angle to form a flange-shaped tip flare portion 3, and the lining pipe 1 of the groove portion 21 is slightly expanded to form a bead portion 2. Since the inner diameter of the mold recess 22 is smaller than the inner diameter of the flange 4, the lining pipe 1 in this portion is formed in a taper shape that widens toward the pipe end.
【００１８】このようにして、成形完了後に前記ロッド
４１による圧力を解除すると、成形ゴム４０の形状は初
期の状態に復元する。そして、金型Ａ１を上方に、金型
Ａ２を下方に型開きすると、フランジ４が取りつけられ
たライニング管継手１０が得られる。この後、フランジ
４を固定して、先端が平らなポンチを先端フレア部３に
押し当てて、先端フレア部３をより平坦に仕上げてもよ
い。In this way, when the pressure of the rod 41 is released after the completion of molding, the shape of the molded rubber 40 is restored to the initial state. Then, when the mold A1 is opened upward and the mold A2 is opened downward, the lining pipe joint 10 to which the flange 4 is attached is obtained. Thereafter, the flange 4 may be fixed, and a punch having a flat tip may be pressed against the tip flare portion 3 to finish the tip flare portion 3 more flatly.
【００１９】前記金型Ａの金型凸部２２が無い場合に
は、成形ゴム４０の膨張によって、フランジ４は拡径し
たライニング管１によってカシメられた状態になり、回
転不能なフランジ付きの管継手が得られる。When the mold convex portion 22 of the mold A is not provided, the expansion of the molding rubber 40 causes the flange 4 to be crimped by the expanded lining pipe 1 and the non-rotatable flanged pipe. A joint is obtained.
【００２０】なお、下記のようにして、フランジ４とラ
イニング管１との間に僅かな隙間を設けると、回転可能
なルーズフランジを備えた管継手を得ることができる。
例えば、金型凸部２２が無い金型で、フランジ４を回転
不可能な状態に固定した後に、金型凸部２２を備えた金
型Ａ１，Ａ２を型閉めすることによって、フランジ４と
ライニング管１との間の隙間を作り、フランジを回転可
能にすることができる。If a slight gap is provided between the flange 4 and the lining pipe 1 as described below, a pipe joint provided with a rotatable loose flange can be obtained.
For example, by fixing the flange 4 in a non-rotatable state with a mold having no mold convex portion 22, the molds A1 and A2 having the mold convex portion 22 are closed to form the flange 4 and the lining. A gap can be created between the tube 1 and the flange to be rotatable.
【００２１】または、上記金型Ａ１，Ａ２と金型Ｂとで
ライニング管１を拡径成形した後に、成形ゴム４０によ
る成形圧力を解除すると、ライニング管１の弾性復元力
によって、ライニング管１は僅かに縮径することを利用
して、フランジ４とライニング管１との間の隙間を作る
こともできる。Alternatively, when the molding pressure of the molding rubber 40 is released after the lining pipe 1 is expanded and molded by the molds A1 and A2 and the mold B, the lining pipe 1 is formed by the elastic restoring force of the lining pipe 1. It is also possible to make a gap between the flange 4 and the lining pipe 1 by utilizing the slightly reduced diameter.
【００２２】または、フランジ４の内側とライニング管
１の外側との隙間に塗料もしくは石膏を塗布した後に、
ライニング管１を拡径してもよい。このとき、塗布され
た塗料もしくは石膏の層によって、ライニング管１とフ
ランジ４との間に微小な間隙が形成されるので、塗布さ
れた塗料もしくは石膏の層を取り除いて空間を形成して
も、塗布された塗料もしくは石膏の層を取り除かなくて
も、フランジ４は回転可能になる。Alternatively, after applying paint or plaster to the gap between the inside of the flange 4 and the outside of the lining pipe 1,
The diameter of the lining pipe 1 may be expanded. At this time, since a minute gap is formed between the lining pipe 1 and the flange 4 by the applied paint or gypsum layer, even if a space is formed by removing the applied paint or gypsum layer. The flange 4 can be rotated without removing the applied paint or plaster layer.
【００２３】このようにして、フランジ４とライニング
管１との間に微小な間隙を形成することによって、フラ
ンジは軸回りに回転可能になり、フランジ４が傾いて倒
れることを防止し、ガタつきを少なくするとともに、フ
ランジ４を、軸回りに回転させてボルト穴を相フランジ
のボルト穴と容易に合わせることができる。このように
して成形加工したライニング管継手１０を用いれば、従
来のルーズフランジと同等の上記効果が得られることは
勿論のこと、ビード部２が形成されているので、輸送時
の取扱いが容易であるとともに、施工時においても、フ
ランジが落下して指を挟む等の事故がないので、安全に
作業ができるという効果が得られる。これは、従来のル
ーズフランジの大きな欠点を解決するものである。By forming a minute gap between the flange 4 and the lining pipe 1 in this manner, the flange becomes rotatable about its axis, and the flange 4 is prevented from tilting and falling and rattling. It is possible to rotate the flange 4 around the axis and easily align the bolt holes with the bolt holes of the companion flange. By using the lining pipe joint 10 formed in this way, it is of course possible to obtain the same effects as those of the conventional loose flange, and since the bead portion 2 is formed, it is easy to handle during transportation. In addition, since there is no accident such as the flange dropping and pinching a finger even during the construction, it is possible to obtain an effect that the work can be performed safely. This solves a major drawback of conventional loose flanges.
【００２４】従来は、このようなビード部を備えたライ
ニング管継手を複雑な工程によって製造していたが、上
述したこの実施例のライニング管継手の製造方法によれ
ば、ビード部２と先端フレア部３とを同時に成形するこ
とができるので、製造工程の大幅な短縮が可能になると
いう効果が得られる。また、ライニング管１の内面の樹
脂層１２には成形ゴム４０が当接するだけであって金属
部材が接触することが無いので、樹脂層１２を傷つける
こともなく、波打ったりしない平滑なライニング面が保
たれ、品質の安定したライニング管継手を製造すること
ができるという効果が得られる。Conventionally, a lining pipe joint having such a bead portion was manufactured by a complicated process, but according to the method for manufacturing a lining pipe joint of this embodiment described above, the bead portion 2 and the tip flare are formed. Since the part 3 and the part 3 can be molded at the same time, there is an effect that the manufacturing process can be significantly shortened. Further, since the molding rubber 40 only comes into contact with the resin layer 12 on the inner surface of the lining pipe 1 and the metal member does not come into contact therewith, the resin layer 12 is not damaged, and a smooth lining surface that does not undulate Therefore, it is possible to obtain an effect that a lining pipe joint with stable quality can be manufactured.
【００２５】また、成形過程のライニング管１の先端フ
レア部３の根元部分が管の内側へ押し出され、小径部が
形成されることがないので、外観上も、圧力損失特性上
も優れたライニング管継手を製造することができるとい
う効果が得られる。In addition, since the root portion of the tip flare portion 3 of the lining pipe 1 in the molding process is extruded to the inside of the pipe and a small diameter portion is not formed, the lining has excellent appearance and pressure loss characteristics. The effect that a pipe joint can be manufactured is acquired.
【００２６】なお、前記ライニング管１とフランジ４と
の隙間は、フランジ４の厚みの10分の１から1000分の１
が好ましい。また、フランジ４をビード部２側に押しつ
けた状態での、先端フレアー部３とフランジ４との隙間
は、0.１mmから10mmが好ましい。10mm以上にすると、施
工作業において指を挟む危険性がある。The gap between the lining pipe 1 and the flange 4 is one tenth to one thousandth of the thickness of the flange 4.
Is preferred. Further, the gap between the tip flare portion 3 and the flange 4 when the flange 4 is pressed against the bead portion 2 side is preferably 0.1 mm to 10 mm. If it is 10 mm or more, there is a risk of pinching fingers during construction work.
【００２７】また、金型凹部２２の内径はフランジ４の
内径より小径となっているので、この部分のライニング
管１は管端に向かって末広がりのテーパ状に形成される
ので、フランジ４をビード部８側へ移動させると、フラ
ンジ４とライニング管１との間の隙間が生じてフランジ
４を回転させやすくなり、ボルトを締めると、フランジ
４が先端フレアー部３側へ移動するので、フランジ４と
ライニング管１との間の隙間が詰まって固定されるので
ある。Further, since the inner diameter of the mold recess 22 is smaller than the inner diameter of the flange 4, the lining pipe 1 in this portion is formed in a taper shape which widens toward the pipe end, so that the flange 4 is beaded. When it is moved to the portion 8 side, a gap is created between the flange 4 and the lining pipe 1 to facilitate the rotation of the flange 4, and when the bolt is tightened, the flange 4 moves to the tip flare portion 3 side. The gap between the pipe and the lining pipe 1 is closed and fixed.
【００２８】[0028]
【発明の効果】このように本発明のライニング管継手の
製造方法によれば、ビード部と先端フレア部とを同時に
成形することができるので、製造工程の大幅な短縮が可
能になるという効果が得られる。また、成形過程のライ
ニング管の先端フレア部の根元部分が管の内側へ押し出
されることがないので、外観上も、圧力損失特性上も優
れたライニング管継手を製造することができるという効
果が得られる。As described above, according to the method for manufacturing a lining pipe joint of the present invention, the bead portion and the flare portion at the tip can be molded at the same time, so that the manufacturing process can be significantly shortened. can get. In addition, since the base of the flare portion of the tip of the lining pipe in the molding process is not extruded to the inside of the pipe, it is possible to obtain the effect that it is possible to manufacture a lining pipe joint excellent in appearance and pressure loss characteristics. Be done.
【００２９】また、ライニング管の内面の樹脂層に金属
部材が接触することが無いので、樹脂層が平滑に保た
れ、品質の安定したライニング管継手を製造することが
できるという効果が得られる。Further, since the metal member does not come into contact with the resin layer on the inner surface of the lining pipe, the resin layer is kept smooth, and a lining pipe joint of stable quality can be manufactured.
【図１】本発明のライニング管継手の製造方法で製造す
るライニング管継手の一例の側面断面図である。FIG. 1 is a side sectional view of an example of a lining pipe joint manufactured by a method for manufacturing a lining pipe joint of the present invention.
【図２】本発明のライニング管継手の製造方法の一実施
例の工程説明図である。FIG. 2 is a process explanatory view of an example of a method for manufacturing a lining pipe joint of the present invention.
【図３】本発明のライニング管継手の製造方法の一実施
例の工程説明図である。FIG. 3 is a process explanatory view of an embodiment of a method for manufacturing a lining pipe joint of the present invention.
【図４】本発明のライニング管継手の製造方法の一実施
例の工程説明図である。FIG. 4 is a process explanatory view of an example of a method for manufacturing a lining pipe joint of the present invention.
【図５】従来の製造方法による管継手の一例の側面断面
図である。FIG. 5 is a side sectional view of an example of a pipe joint according to a conventional manufacturing method.
１ ライニング管 ２ ビード部 ３ 先端フレアー部 ４ フランジ １０ ライニング管継手 ４０ 成形ゴム Ａ 金型 Ａ１ 金型 Ａ２ 金型 Ｂ 金型 1 lining pipe 2 bead part 3 tip flare part 4 flange 10 lining pipe joint 40 molding rubber A mold A1 mold A2 mold B mold
Claims (1)
端フレア部とビード部とによってフランジを挟んでなる
ライニング管継手の製造方法において、ライニング管に
フランジを予め外嵌しておき、先端フレア部とビード部
以外の部分を金型で押さえて膨張を禁止した状態で、前
記ライニング管の内部に成形ゴムを挿入して、この成形
ゴムをライニング管の軸方向に圧縮し、前記成形ゴムを
ライニング管の軸に垂直な方向に膨張させることによっ
て、ビード部と先端フレア部とを同時に成形することを
特徴とするライニング管継手の製造方法。1. A method for manufacturing a lining pipe joint in which a flange is sandwiched by a flange-shaped tip flare portion and a bead portion formed at the pipe end of the lining pipe, and the flange is fitted on the lining pipe in advance. Molded rubber is inserted inside the lining pipe in a state where expansion of the tip flare part and bead part is suppressed by a mold, and the molded rubber is compressed in the axial direction of the lining pipe, and the molding is performed. A method for manufacturing a lining pipe joint, wherein a bead portion and a tip flare portion are simultaneously formed by expanding rubber in a direction perpendicular to the axis of the lining pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04099402A JP3115094B2 (en) | 1992-04-20 | 1992-04-20 | Manufacturing method of lining pipe joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP04099402A JP3115094B2 (en) | 1992-04-20 | 1992-04-20 | Manufacturing method of lining pipe joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05293887A true JPH05293887A (en) | 1993-11-09 |
| JP3115094B2 JP3115094B2 (en) | 2000-12-04 |
Family
ID=14246504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP04099402A Expired - Fee Related JP3115094B2 (en) | 1992-04-20 | 1992-04-20 | Manufacturing method of lining pipe joint |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3115094B2 (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001205367A (en) * | 2000-01-24 | 2001-07-31 | Ck Kinzoku Kk | Method for bending tube end flange part |
| EP1674241A1 (en) * | 2004-12-21 | 2006-06-28 | Uponor Innovation Ab | Pipes enlarging |
| JP2014051999A (en) * | 2012-09-05 | 2014-03-20 | Sekisui Chem Co Ltd | Double-layered pipe |
| KR101587441B1 (en) * | 2014-08-13 | 2016-01-21 | 보성정공 주식회사 | Flange for adhesion of stainless pipe and resin pipe and its manufacturing method |
| WO2016125507A1 (en) * | 2015-02-06 | 2016-08-11 | 株式会社神戸製鋼所 | Method for joining members |
| JP2016147309A (en) * | 2015-02-06 | 2016-08-18 | 株式会社神戸製鋼所 | Member joining method |
| WO2018025667A1 (en) * | 2016-08-02 | 2018-02-08 | 株式会社神戸製鋼所 | Member machining method and member joining method |
| KR20180084533A (en) * | 2017-01-17 | 2018-07-25 | 승진산업 (주) | Method of making flexible joint |
| WO2019021554A1 (en) * | 2017-07-28 | 2019-01-31 | 三桜工業株式会社 | Pipe end part processing device |
| KR20200015288A (en) * | 2018-08-03 | 2020-02-12 | 승진산업 (주) | Method of making flexible joint |
-
1992
- 1992-04-20 JP JP04099402A patent/JP3115094B2/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001205367A (en) * | 2000-01-24 | 2001-07-31 | Ck Kinzoku Kk | Method for bending tube end flange part |
| EP1674241A1 (en) * | 2004-12-21 | 2006-06-28 | Uponor Innovation Ab | Pipes enlarging |
| JP2014051999A (en) * | 2012-09-05 | 2014-03-20 | Sekisui Chem Co Ltd | Double-layered pipe |
| KR101587441B1 (en) * | 2014-08-13 | 2016-01-21 | 보성정공 주식회사 | Flange for adhesion of stainless pipe and resin pipe and its manufacturing method |
| CN107206464A (en) * | 2015-02-06 | 2017-09-26 | 株式会社神户制钢所 | The joint method of component |
| JP2016147309A (en) * | 2015-02-06 | 2016-08-18 | 株式会社神戸製鋼所 | Member joining method |
| WO2016125507A1 (en) * | 2015-02-06 | 2016-08-11 | 株式会社神戸製鋼所 | Method for joining members |
| JP2019055431A (en) * | 2015-02-06 | 2019-04-11 | 株式会社神戸製鋼所 | Member joining method |
| WO2018025667A1 (en) * | 2016-08-02 | 2018-02-08 | 株式会社神戸製鋼所 | Member machining method and member joining method |
| KR20180084533A (en) * | 2017-01-17 | 2018-07-25 | 승진산업 (주) | Method of making flexible joint |
| WO2019021554A1 (en) * | 2017-07-28 | 2019-01-31 | 三桜工業株式会社 | Pipe end part processing device |
| JP2019025510A (en) * | 2017-07-28 | 2019-02-21 | 三桜工業株式会社 | Pipe end processing device |
| KR20200015288A (en) * | 2018-08-03 | 2020-02-12 | 승진산업 (주) | Method of making flexible joint |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3115094B2 (en) | 2000-12-04 |
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