JPS6217529B2 - - Google Patents

Info

Publication number
JPS6217529B2
JPS6217529B2 JP57005177A JP517782A JPS6217529B2 JP S6217529 B2 JPS6217529 B2 JP S6217529B2 JP 57005177 A JP57005177 A JP 57005177A JP 517782 A JP517782 A JP 517782A JP S6217529 B2 JPS6217529 B2 JP S6217529B2
Authority
JP
Japan
Prior art keywords
cap
pipe
synthetic resin
resin layer
jig
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
Application number
JP57005177A
Other languages
English (en)
Other versions
JPS58122824A (ja
Inventor
Kuniaki Saraya
Kenji Kimura
Takashi Tamada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP57005177A priority Critical patent/JPS58122824A/ja
Publication of JPS58122824A publication Critical patent/JPS58122824A/ja
Publication of JPS6217529B2 publication Critical patent/JPS6217529B2/ja
Granted legal-status Critical Current

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
    • B29C65/08—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using ultrasonic vibrations
    • 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
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/64—Joining a non-plastics element to a plastics element, e.g. by force
    • B29C65/645—Joining a non-plastics element to a plastics element, e.g. by force using friction or ultrasonic vibrations
    • 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
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • 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
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • B29C66/5346—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat
    • 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
    • B29C66/61—Joining from or joining on the inside
    • B29C66/612—Making circumferential joints
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/10—Means for stopping flow in pipes or hoses
    • 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
    • B29C66/1222—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 lapped 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
    • B29C66/1224—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
    • B29C66/70—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
    • 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
    • B29C66/73—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • 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
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Pipe Accessories (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Description

【発明の詳細な説明】 本発明はフエンス、門扉等に使用する格子パイ
プなど、外周に合成樹脂層を被覆したパイプの切
断端面へのキヤツプの取付の方法に関し、筒状本
体１３の内周に全周に亙つて耐熱性合成樹脂より
なるパツキン材１４を張設してなる治具５の内周
に、外周が熱可塑性合成樹脂層１で被覆されたパ
イプ２の上端部を挿入して、該合成樹脂層１の外
周面をパツキン材１４の内周面に密着させ、下面
の周部に面取り傾斜面６を施した熱可塑性合成樹
脂よりなる円板状のキヤツプ３をパイプ２の上端
に載置して、超音波融着用ホーン７によりキヤツ
プ３の上面に圧力を加えつつ超音波振動を与える
ことによりパイプ２の合成樹脂層１にキヤツプ３
を融着することを特徴とするパイプへのキヤツプ
取付方法に係るものである。
フエンスや門扉等に使用する格子パイプなど、
外周に合成樹脂層１を被覆した金属製のパイプ２
にあつて、断面端面のパイプ２の防錆や安全性、
美感のため及びパイプ２内に雨水が浸入するのを
防止するため、パイプ２の端部開口に従来は第１
図に示すようにキヤツプ３を取付けていた。すな
わち、第１図ａのものはキヤツプ３の外周の筒部
９をパイプ２の合成樹脂層１の外周に嵌合させて
キヤツプ３の取付けを行なうようにしたものであ
り、第１図ｂのものは鋸歯状の凹凸１０を有する
嵌合部１１をパイプ２の内周に圧入することによ
りキヤツプ３の取付けを行なうようにしたもので
ある。しかしながら第１図ａのものではキヤツプ
３の筒部９と合成樹脂層１との間から毛細管現象
などで雨水がパイプ２内に浸入することがありパ
イプ２の端面や内周面に錆びが発生することを完
全には防止できず、また経時によりキヤツプ３は
パイプ２より脱落するおそれがあり、一方、第１
図ｂのものも同様に雨水の浸入を完全に防止する
ことはできず、経時により脱落するおそれがあつ
た。
そこで、第２図ａ，ｂに示すように合成樹脂製
のキヤツプ３をパイプ２の上端面に載せて超音波
融着用ホーン７によつてキヤツプ３とパイプ２の
合成樹脂層１の端面とを融着せしめることによ
り、キヤツプ３の脱落や雨水の浸入を完全に防止
するようにすることを検討したが、このものでは
超音波融着用ホーン７による発熱でキヤツプ３の
外周部分の溶融樹脂が合成樹脂層１の外周で垂
れ、この垂れ部分１２によつて外観を損ねてしま
うものであつた。
本発明は上記の点に鑑みてなされたものであつ
て、雨水の浸入を完全に遮断した状態で脱落する
おそれなく強固にキヤツプを取付けることがで
き、しかも外観を損うようなことなく超音波融着
でキヤツプの取付けを行なうことができるパイプ
へのキヤツプ取付方法を提供することを目的とす
る。
以下本発明を実施例により詳述する。治具５は
筒状本体１３とその内周に全周に亘つて取付けら
れる、適当な弾力性を有しかつ樹脂との剥離性、
耐熱性、断熱性に優れたテフロン等の樹脂で形成
されたパツキン材１４とによつて構成されるもの
で、この治具５は左右二つ割り構造に形成してあ
る。また金属製のパイプ２の外周にはポリ塩化ビ
ニルなど熱可塑性の合成樹脂層１が被覆してあ
る。
このパイプ２の切断端部にキヤツプ３を取付け
るにあたつては以下のようにして行なう。すなわ
ち、先ず第３図に示すようにパイプ２の上部を治
具５内に挿着する。このときパツキン材１４の内
径とパイプ２の合成樹脂層１の外径とは略同一寸
法に設定してあつて、パイプ２を治具５内に挿着
した際には合成樹脂層１の外周面にパツキン材１
４の内周面が全周に亘つて密接するようにしてあ
る。またパイプ２は上端が治具５の中段部に位置
するように治具５内に挿入するものである。次で
治具５のパツキン材１４の内周にてパイプ２の上
端にポリ塩化ビニルなど熱可塑性の合成樹脂で形
成したキヤツプ３をセツトする。ここでキヤツプ
３の外径はパツキン材１４の内径とほぼ等しい寸
法に形成してあり、またキヤツプ３の下面の外周
部には全周に亘つて内方へ向け下り傾斜する面取
り傾斜面６が施してある。このキヤツプ３をパイ
プ２の上端にセツトした際には面取り傾斜面６が
パイプ２の上端に当接し、面取り傾斜面６と治具
５のパツキン材１４内周との間に樹脂溜り空所８
が形成されることになる。こののち、外径をパツ
キン材１４の内径と略等しく形成した超音波融着
用ホーン７をパツキン材１４の内周に上方より挿
入して超音波融着用ホーン７でキヤツプ３に下方
への押圧力を加えつつ超音波振動を与える。する
とこの振動エネルギーによつてキヤツプ３とパイ
プ２との接触面が発熱してキヤツプ３の樹脂が溶
融し、さらに超音波融着用ホーン７の押圧力によ
つてキヤツプ３が下方へ押圧されることによりキ
ヤツプ３は合成樹脂層１とも接触し超音波融着用
ホーン７による振動エネルギーでキヤツプ３と合
成樹脂層との接触面が発熱してキヤツプ３の樹脂
と合成樹脂層１とが溶融し合う。このようにして
キヤツプ３と合成樹脂層１とが融着されることに
なる。このとき合成樹脂層１の外周に治具５のパ
ツキン材１４の内周が密接していることに加え、
キヤツプ３の溶融された樹脂は樹脂溜り空所８内
に逃げることができるため、溶融樹脂が合成樹脂
層１とパツキン材１４との間に浸入することを防
止でき、溶融樹脂が合成樹脂層１の外側へバリと
して出ることが防止されるものである。また超音
波融着用ホーン７による加圧でキヤツプ３の中央
部はパイプ２の内周にめり込むように嵌入され
る。このようにして第４図に示すように、キヤツ
プ３が融着で合成樹脂層１と一体化すると共にキ
ヤツプ３の下面中央部が嵌合突部４としてパイプ
２の内周に嵌合した状態でキヤツプ３のパイプ２
への取付けが行なわれるものである。尚、パツキ
ン材１４は樹脂溜り空所８内に浸入する溶融樹脂
が整形される前に冷却固化されることを防止する
役割も有しており、そこで上記したようにパツキ
ン材１４は断熱性、耐熱性を有する材料で形成し
たものである。
上述のように本発明にあつては、キヤツプに下
方への押圧力を加えつつ超音波融着用ホーンによ
つてキヤツプをパイプの合成樹脂層に融着するよ
うにしたので、キヤツプと合成樹脂層との融着に
よつてパイプの開口は完全にシールされることに
なり、パイプ内への雨水の浸入を完全にシヤツト
アウトすることができるものであり、しかもこの
ようにキヤツプに下方への押圧力を加えているこ
とによりキヤツプの下部が溶融する際にキヤツプ
の中央部は嵌合突部としてパイプの内周に嵌合す
ることになつてこの嵌合力と上記キヤツプと合成
樹脂層との融着を合わせた力によつてキヤツプは
パイプに強固に取付けられ、経時によつてもキヤ
ツプがパイプより脱落してしまうようなおそれが
ないものである。さらにパイプの上端部を筒状の
治具の内周に挿入して上端部の合成樹脂層の外周
面を治具の内周に全周に亘つて密着させ、下面の
周部に面取り傾斜面を施した合成樹脂製のキヤツ
プを治具内周にてパイプの上端に配して面取り傾
斜面と治具内周との間に樹脂溜り空所を形成した
状態で超音波融着用ホーンにてキヤツプに超音波
振動を与えるようにしたので、合成樹脂層の外周
に治具の内周が密接していることに加え、キヤツ
プの溶融された樹脂は樹脂溜り空所内に逃げるこ
とができるため、溶融樹脂が合成樹脂層と治具と
の間に浸入することを防止でき、溶融樹脂が合成
樹脂層の外側へバリとして出ることが防止されて
外観を損うことなく高周波融着でキヤツプをパイ
プに取付けることができるものであり、また治具
の内面に耐熱性合成樹脂よりなるパツキン材を張
設したので、溶融樹脂を密着させて整形するまで
の間、治具との接触面における冷却固化を防止
し、それによつて接合部の跡を残すことなくパイ
プ表面を良好に仕上げることができるものであ
る。
【図面の簡単な説明】
第１図ａ，ｂは従来例の断面図、第２図ａ，ｂ
は他の従来例の断面図、第３図は本発明方法に用
いる装置の一実施例の断面図、第４図はパイプに
キヤツプを取付けた状態の断面図である。 １は合成樹脂層、２はパイプ、３はキヤツプ、
５は治具、６は面取り傾斜面、７は超音波融着用
ホーン、８は樹脂溜り空所である。

Claims (1)

    【特許請求の範囲】
  1. １ 筒状本体の内周に全周に亙つて耐熱性合成樹
    脂よりなるパツキン材を張設してなる治具の内周
    に、外周が熱可塑性合成樹脂層で被覆されたパイ
    プの上端部を挿入して、該合成樹脂層の外周面を
    パツキン材の内周面に密着させ、下面の周部に面
    取り傾斜面を施した熱可塑性合成樹脂よりなる円
    板状のキヤツプをパイプの上端に載置して、超音
    波融着用ホーンによりキヤツプの上面に圧力を加
    えつつ超音波振動を与えることによりパイプの合
    成樹脂層にキヤツプを融着することを特徴とする
    パイプへのキヤツプの取付方法。
JP57005177A 1982-01-15 1982-01-15 パイプへのキヤツプ取付方法 Granted JPS58122824A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57005177A JPS58122824A (ja) 1982-01-15 1982-01-15 パイプへのキヤツプ取付方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57005177A JPS58122824A (ja) 1982-01-15 1982-01-15 パイプへのキヤツプ取付方法

Publications (2)

Publication Number Publication Date
JPS58122824A JPS58122824A (ja) 1983-07-21
JPS6217529B2 true JPS6217529B2 (ja) 1987-04-17

Family

ID=11603950

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57005177A Granted JPS58122824A (ja) 1982-01-15 1982-01-15 パイプへのキヤツプ取付方法

Country Status (1)

Country Link
JP (1) JPS58122824A (ja)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS624992A (ja) * 1985-07-01 1987-01-10 積水化学工業株式会社 管壁に管軸方向の通孔が形成された樹脂管の通孔閉塞方法

Also Published As

Publication number Publication date
JPS58122824A (ja) 1983-07-21

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