JPS5828320A - Welding method of plastic tube - Google Patents
Welding method of plastic tubeInfo
- Publication number
- JPS5828320A JPS5828320A JP12652581A JP12652581A JPS5828320A JP S5828320 A JPS5828320 A JP S5828320A JP 12652581 A JP12652581 A JP 12652581A JP 12652581 A JP12652581 A JP 12652581A JP S5828320 A JPS5828320 A JP S5828320A
- Authority
- JP
- Japan
- Prior art keywords
- heated
- plastic tube
- flange surface
- joint
- plastic
- 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
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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
- B29C65/20—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror"
-
- 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
-
- 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
- B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
- B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
- B29C66/1312—Single flange to flange joints, the parts to be joined being rigid
-
- 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
- B29C66/32—Measures for keeping the burr form under control; Avoiding burr formation; Shaping the burr
- B29C66/322—Providing cavities in the joined article to collect the burr
-
- 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
- B29C66/5223—Joining tubular articles for forming corner connections or elbows, e.g. for making V-shaped pieces
- B29C66/52231—Joining tubular articles for forming corner connections or elbows, e.g. for making V-shaped pieces with a right angle, e.g. for making L-shaped pieces
-
- 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
- B29C66/5229—Joining tubular articles involving the use of a socket
- B29C66/52291—Joining tubular articles involving the use of a socket said socket comprising a stop
- B29C66/52292—Joining tubular articles involving the use of a socket said socket comprising a stop said stop being internal
-
- 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
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2023/00—Tubular articles
- B29L2023/22—Tubes or pipes, i.e. rigid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/24—Pipe joints or couplings
- B29L2031/243—Elbows
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
- Branch Pipes, Bends, And The Like (AREA)
Abstract
Description
【発明の詳細な説明】
本発明はプラスチック管を加熱融着によって接合する方
法の改良に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in the method of joining plastic tubes by heat fusion.
接着剤による′接合が困難なポリオレフィン系プラスチ
ック管の接合においては、プラスチックスリーブの内面
並びにプラスチック管端部の外面をそれぞれ加熱治具に
より溶融し、而°るのち、第1図に示すよちにプラスチ
ックスリーブ1゛にプラスチック管端部2′を圧入する
方法が用いられている。When joining polyolefin plastic pipes, which are difficult to join with adhesives, the inner surface of the plastic sleeve and the outer surface of the end of the plastic tube are melted using a heating jig, and then, as shown in Figure 1, A method is used in which the plastic tube end 2' is press-fitted into the plastic sleeve 1'.
しかし、この方法では、上記圧入時にスリーブ内面の溶
融プラスチックがプラスチック管先端でしごかれ、スリ
ーブ奥方にパリ3′が形成されて、通水抵抗が著しく増
大するといった不利がある。However, this method has the disadvantage that during press-fitting, the molten plastic on the inner surface of the sleeve is squeezed by the tip of the plastic tube, forming a gap 3' at the back of the sleeve, which significantly increases water flow resistance.
本発明に係るプラスチック管の接合方法は、上述の不利
を軽減し得る方法であり、予め設けたプラスチック管端
のフレア部端面を加熱溶融させ、該フレア部端面をプラ
スチック管継手端の加熱したフランジ面に融着すること
を特徴とする方法である。The plastic pipe joining method according to the present invention is a method that can alleviate the above-mentioned disadvantages, and involves heating and melting the flared end face of the plastic pipe end provided in advance, and joining the flared end face to the heated flange of the plastic pipe joint end. This method is characterized by fusion bonding to a surface.
以下、図面により本発明を説明する。The present invention will be explained below with reference to the drawings.
第2図において、1けポリオレフィン系プラスチック管
継手(エルボ−)であり、両端にはフランジ部11.1
1が設けられている。12はフランジ面の内周縁に設け
た切欠である。2はポリオレフィン系プラスチック管で
あり、管端にはフレア部21が設けられている。このフ
レア部21は工場内で通常のフレア加工によって予め設
けられたものである。3は円板状の加熱治具である。In Figure 2, it is a single piece polyolefin plastic pipe joint (elbow), with flange parts 11.
1 is provided. 12 is a notch provided on the inner peripheral edge of the flange surface. 2 is a polyolefin plastic tube, and a flared portion 21 is provided at the tube end. This flare portion 21 is previously provided in a factory by normal flaring processing. 3 is a disc-shaped heating jig.
本発明を実施するには、まず、第2図において、継手端
のフランジ面110並びに管端フレア部端面210を円
板状加熱治具3に接触させ、7ラング面110並びにフ
レア部端面210をそれぞれ溶融させる。In order to carry out the present invention, first, as shown in FIG. Melt each.
而るのちけ、円板状加熱治具3を抜き取り、第3図に示
すように、継手端の加熱した7ランジ而110に管端の
加熱したフレア部端面21.0を融着させる。Then, the disk-shaped heating jig 3 is removed, and the heated flared end surface 21.0 of the tube end is fused to the heated seven flange 110 of the joint end, as shown in FIG.
この場合、圧接面の溶融プラスチックは、内側と外側の
両方向に流動しようとするが、その流動は放射状であり
、内側方向流動に対する流動抵抗の方が外側方向流動に
対する流動抵抗よりも大であるから、7ラング面の内周
又はフレア部端の内周側にしぼり出されるプラスチック
は少量であり、従って、同上内周側に形成°されるパリ
は充分に小さくできる。特に、実施例に示すように、継
手端7ランジ面の内周縁に切欠部を設ければ、との切欠
部で溶融プラスチックを吸収でき、パリを一層に小さく
できる。In this case, the molten plastic on the pressure contact surface tries to flow both inward and outward, but the flow is radial, and the flow resistance to the inward flow is greater than the flow resistance to the outward flow. , 7. The amount of plastic that is squeezed out on the inner periphery of the rung surface or the inner periphery of the end of the flared portion is small, so that the gap formed on the inner periphery of the above can be made sufficiently small. In particular, as shown in the embodiment, if a notch is provided at the inner circumferential edge of the flange surface of the joint end 7, the molten plastic can be absorbed by the notch, and the cracks can be further reduced.
又、上記の圧接時、プラスチック管端フレア部21にお
いて、加熱溶融されている部分はフレア部端面210の
みであり、フレア部のつけ根は充分な硬さを備えている
から、フレア部端面210を継手フランジ面110に充
分な面王で王接できる。従って、融着強度を充分に保証
できる。In addition, during the above pressure welding, the only part of the plastic tube end flare section 21 that is heated and melted is the flare section end surface 210, and since the base of the flare section has sufficient hardness, the flare section end surface 210 is heated and melted. It can be connected to the joint flange surface 110 with sufficient surface roughness. Therefore, the fusion strength can be sufficiently guaranteed.
上述した通り、本発明によれば、プラスチック管端をプ
ラスチック継手端に充分な圧接力で、かつ内面パリの発
生をよく軽減して融着できる。As described above, according to the present invention, the end of the plastic pipe can be fused to the end of the plastic joint with sufficient pressure and the occurrence of inner surface cracks can be well reduced.
従って、本発明は、加熱融着に頼らざるを得ないポリオ
レフィン系プラスチック管の接合に極めて有用である。Therefore, the present invention is extremely useful for joining polyolefin plastic pipes that must rely on heat fusion.
第1図はプラスチック管の従、来の接合方法を示す説明
図、第2図並びに第3図は本発、明に係るプラスチック
管の接合方法を示し、第2図は接合前の状態を、第3図
は接合後の状態をそれぞれ示している。
図において、1は管継手、11は7ラング部、110I
fi710Ifi7ラングスチック管、21はプラスチ
ック管端フレア部、210はフレア部端面である。FIG. 1 is an explanatory diagram showing a conventional joining method for plastic pipes, FIGS. 2 and 3 show a joining method for plastic pipes according to the present invention, and FIG. 2 shows the state before joining, FIG. 3 shows the state after bonding. In the figure, 1 is a pipe joint, 11 is a 7 rung part, and 110I
fi710Ifi7 Langstick tube, 21 is a plastic tube end flare part, and 210 is a flare part end surface.
Claims (1)
熱溶融させ、該フレア部端面をプラスチック管継手端の
加熱したフランジ面に融着することを特徴とするプラス
チック管の接合方法。(1) A method for joining plastic pipes, which comprises heating and melting a flared end face of a plastic pipe end provided in advance, and fusing the flared end face to a heated flange face of a plastic pipe fitting end.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12652581A JPS5828320A (en) | 1981-08-11 | 1981-08-11 | Welding method of plastic tube |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12652581A JPS5828320A (en) | 1981-08-11 | 1981-08-11 | Welding method of plastic tube |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5828320A true JPS5828320A (en) | 1983-02-19 |
Family
ID=14937358
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12652581A Pending JPS5828320A (en) | 1981-08-11 | 1981-08-11 | Welding method of plastic tube |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5828320A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0852308A1 (en) * | 1996-09-25 | 1998-07-08 | Hoechst Celanese Corporation | Pressure vessel: overmolding a polyolefin onto a polyolefin |
US6946050B2 (en) * | 2003-01-27 | 2005-09-20 | Nike, Llc | Method for flange bonding |
GB2555583A (en) * | 2016-10-28 | 2018-05-09 | Peak Pipe Systems Ltd | A pipe |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5248534A (en) * | 1975-10-16 | 1977-04-18 | Toa Seiki Co Ltd | Pipe butt welding method |
-
1981
- 1981-08-11 JP JP12652581A patent/JPS5828320A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5248534A (en) * | 1975-10-16 | 1977-04-18 | Toa Seiki Co Ltd | Pipe butt welding method |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0852308A1 (en) * | 1996-09-25 | 1998-07-08 | Hoechst Celanese Corporation | Pressure vessel: overmolding a polyolefin onto a polyolefin |
US5916647A (en) * | 1996-09-25 | 1999-06-29 | Celgard Llc | Pressure vessel: overmolding a polyolefin onto a polyolefin |
US6299820B1 (en) | 1996-09-25 | 2001-10-09 | Celgard Inc. | Pressure vessel: overmolding a polyolefin onto a polyolefin |
US6946050B2 (en) * | 2003-01-27 | 2005-09-20 | Nike, Llc | Method for flange bonding |
GB2555583A (en) * | 2016-10-28 | 2018-05-09 | Peak Pipe Systems Ltd | A pipe |
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