JPH0326530A - Synthetic resin tube - Google Patents

Synthetic resin tube

Info

Publication number
JPH0326530A
JPH0326530A JP1161609A JP16160989A JPH0326530A JP H0326530 A JPH0326530 A JP H0326530A JP 1161609 A JP1161609 A JP 1161609A JP 16160989 A JP16160989 A JP 16160989A JP H0326530 A JPH0326530 A JP H0326530A
Authority
JP
Japan
Prior art keywords
joint
synthetic resin
parts
heater
tubes
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
Application number
JP1161609A
Other languages
Japanese (ja)
Other versions
JPH0529538B2 (en
Inventor
Kiyoshi Nishio
清志 西尾
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.)
Nippon Pillar Packing Co Ltd
CKD Corp
Original Assignee
Nippon Pillar Packing Co Ltd
CKD Corp
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 Nippon Pillar Packing Co Ltd, CKD Corp filed Critical Nippon Pillar Packing Co Ltd
Priority to JP1161609A priority Critical patent/JPH0326530A/en
Publication of JPH0326530A publication Critical patent/JPH0326530A/en
Publication of JPH0529538B2 publication Critical patent/JPH0529538B2/ja
Granted legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/10Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11Joint 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
    • B29C66/114Single butt joints
    • B29C66/1142Single butt to butt joints
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/1429Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the way of heating the interface
    • B29C65/1432Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation characterised by the way of heating the interface direct heating of the surfaces to be joined
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/50General 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
    • B29C66/51Joining 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
    • B29C66/52Joining tubular articles, bars or profiled elements
    • B29C66/522Joining tubular articles
    • B29C66/5221Joining tubular articles for forming coaxial connections, i.e. the tubular articles to be joined forming a zero angle relative to each other
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/90Measuring or controlling the joining process
    • B29C66/91Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/914Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux
    • B29C66/9141Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature
    • B29C66/91411Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux by controlling or regulating the temperature, the heat or the thermal flux by controlling or regulating the temperature of the parts to be joined, e.g. the joining process taking the temperature of the parts to be joined into account
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/90Measuring or controlling the joining process
    • B29C66/91Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
    • B29C66/919Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux characterised by specific temperature, heat or thermal flux values or ranges
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General 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
    • B29C66/71General 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General 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
    • B29C66/73General 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
    • B29C66/739General 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
    • B29C66/7392General 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
    • B29C66/73921General 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • Toxicology (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To enable a welded part to have a strength not lower than the strength of a tube itself, by opposing each of joint end parts of tubes made from a molten synthetic resin to a heater with a specified spacing therebetween, heating the joint parts to a specified temperature for a predetermined time to melt the joint parts over a specified length, and pressing the joint parts against each other to weld the joint parts integrally. CONSTITUTION:Joint end parts 2a of tubes 2 made from a molten synthetic resin are disposed respectively opposite to both side surfaces of a heater 3 placed at a central part of a device. Each of the joint end parts 2a is maintained opposite to the side surface of the heater 3, with a spacing of 1 to 6mm therebetween, and is heated to a temperature ranging from 600 to 800 deg.C, whereby each of the joint end parts 2a is melted over a length of about 0.5 to 5mm. The joint end parts 2a are then pressed against each other in the directions of arrows, whereby the parts 2a are welded uniformly and integrally, leaving no gap therebetween. As a result, the welded part 2b has a strength not lower than the strength of the tube 2 itself, and durability is enhanced.

Description

【発明の詳細な説明】 (イ)産業上の利用分野 この発明は、例えば、塩化ビニール、ボリエチレン、フ
ッ素系樹脂等の溶融合威樹脂により一体形成された合成
樹脂製チューブに関する。
DETAILED DESCRIPTION OF THE INVENTION (a) Industrial Application Field The present invention relates to a synthetic resin tube integrally formed from a molten composite resin such as vinyl chloride, polyethylene, or fluororesin.

(口)従来の技術 従来、上述の溶融合成樹脂製の各チューブを接続する場
合、これら各チューブと同材質の合成樹脂製の管継手に
より接続していた。
(Example) Prior Art Conventionally, when connecting the tubes made of the above-mentioned molten synthetic resin, they were connected using synthetic resin pipe joints made of the same material as the tubes.

(ハ)発明が解決しようとする問題点 しかし、上述のように2本の各チューブを別′部材の管
継手により接続した場合、チューブ自体に比べて継手部
分の強度が構造的に弱くなり、配管時に於ける引張り力
や曲げ応力に対して耐久性が低く、或いは、流体の移送
圧力や薬液の化学反応による発熱作用等により継手部分
にクリープが起きやすく、継手部分のシール性が先行し
て低下し、流体の漏洩が生じるという問題点を有してい
る。
(C) Problems to be Solved by the Invention However, when two tubes are connected by separate tube joints as described above, the strength of the joints becomes structurally weaker than the tubes themselves. It has low durability against tensile force and bending stress during piping, or creep tends to occur in the joint due to fluid transfer pressure and heat generation due to chemical reactions of chemicals, and the sealing performance of the joint is poor. This poses a problem in that fluid leakage occurs.

この発明は上記問題に鑑み、2本の各チューブを一体的
に溶着して合成樹脂製チューブを形成することにより、
上記問題点を解決でき、チューブ自体と同等以上の強度
を得ることができる合成樹脂製チューブの提供を目的と
する。
In view of the above-mentioned problems, this invention has been developed by integrally welding two tubes to form a synthetic resin tube.
The object of the present invention is to provide a synthetic resin tube that can solve the above problems and has a strength equal to or higher than that of the tube itself.

(二)問題点を解決するための手段 この発明は、溶融合威樹脂製の各チューブの接合部を加
熱ヒータに対して1++m〜6m間隔に隔てて対向し、
加熱ヒータにより600℃〜800”Cの温度で各チュ
ーブの接合部を所定時間加熱して0.5〜5閣溶融した
後、これら各チューブの溶融接合部を圧接して一体的に
溶着した合成樹脂製チューブであることを特徴とする。
(2) Means for Solving the Problems This invention has the joint portion of each tube made of molten fusion resin facing the heater at an interval of 1++ m to 6 m,
The joints of each tube are heated with a heater at a temperature of 600°C to 800''C for a predetermined period of time to melt them by 0.5 to 50%, and then the molten joints of these tubes are pressed together and welded together. It is characterized by being a resin tube.

(ホ)作用 この発明は、加熱ヒータに対して1一〜6關間隔に隔て
て対向した各チューブの接合部を、加熱ヒータにより6
00℃〜800℃の温度で加熱して0.5〜5mm溶融
させ、これら同一溶融状態に溶融した各チューブの接合
部を圧接すると、各接合部は均一に融合して隙間無く一
体的に溶着する。
(e) Effect This invention provides a method for connecting the joints of the tubes facing the heater at intervals of 11 to 6 degrees by means of the heater.
When heated at a temperature of 00℃ to 800℃ to melt 0.5 to 5mm, and press the joints of each tube that has been melted to the same molten state, each joint will fuse uniformly and weld together without any gaps. do.

(へ)発明の効果 この発明によれば、複数本の各チューブを隙間無く一体
的に溶着して合成樹脂製チューブを形威しているので、
溶着部はチューブ自体と同等以上の強度となり、配管時
に於ける引張り力や曲げ応力に対する耐久性が向上し、
且つ、流体の移送圧力や薬液の化学反応による発熱作用
等により溶着部が先に破断するのを積極的に防止するこ
とができ、流体移送時に於けるシール性が向上し、配管
資材として高い信頼性が得られる。
(F) Effects of the Invention According to this invention, a plurality of tubes are integrally welded without any gaps to form a synthetic resin tube.
The strength of the welded part is equal to or higher than that of the tube itself, and the durability against tensile force and bending stress during piping is improved.
In addition, it can proactively prevent the welded part from breaking first due to the fluid transfer pressure and the heat generated by the chemical reaction of the chemical solution, improving the sealing performance during fluid transfer, making it highly reliable as a piping material. You can get sex.

(ト)発明の実施例 この発明の一実施例を以下図面に基づいて詳述する。(g) Examples of the invention An embodiment of the present invention will be described in detail below based on the drawings.

図面は溶融合成樹脂の一例としてテトラフルオ口エチレ
ンーパーフルオロアルキルビニルエーテル共重合体(P
FA樹脂)により一体形成した合成樹脂製チューブを示
し、第1図及び第2図に於いて、この合成樹脂製チュー
ブ1は、PFA樹脂製の2本の各チューブ2.2を一体
的に溶着して形成している。
The drawing shows a tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer (P) as an example of a molten synthetic resin.
In FIGS. 1 and 2, this synthetic resin tube 1 is made by integrally welding two tubes 2.2 made of PFA resin. It is formed by

上述の各チューブ2,2を溶着する手段としては、当出
願人が開発した溶着装if(特願昭63262168号
公報参照)がある。
As a means for welding the above-mentioned tubes 2, 2, there is a welding device if (see Japanese Patent Application No. 63262168) developed by the present applicant.

この溶着装置(図示省略)を用いて、例えば、外径寸法
が19關を有し、肉厚が1.6mmを有する2本の各チ
ューブ2.2を溶着する場合、第3図に示すように、軸
方向に対して直角に切断した各チューブ2,2の各接合
端部2a,2aを、装置中央部に配設した加熱ヒータ3
の両側面に対向して夫々配置し、これら各チューブ2,
2の各接合端部2a,2aを、加熱ヒータ3の両側面に
対して対向間隔A,Aを2〜3臘間隔に隔てた定位置に
保持する。
For example, when welding two tubes 2.2 each having an outer diameter of 19 mm and a wall thickness of 1.6 mm using this welding device (not shown), as shown in FIG. The joint ends 2a, 2a of the tubes 2, 2 cut at right angles to the axial direction are connected to a heater 3 disposed in the center of the device.
These tubes 2,
The joint ends 2a, 2a of the heater 3 are held at fixed positions with facing distances A, A of 2 to 3 feet apart from both side surfaces of the heater 3.

次に、加熱ヒータ3に通電して、溶融合成樹脂製の各チ
ューブ2,2の各接合端部2a.2aが溶融する600
℃〜800℃の加熱範囲内で所定時間加熱する。
Next, the heater 3 is energized, and each joining end 2a of each tube 2 made of molten synthetic resin. 2a melts 600
Heating is performed within a heating range of .degree. C. to 800.degree. C. for a predetermined period of time.

すなわち、加熱ヒータ3の加熱温度を750℃に保持し
、その輻射熱により各チューブ2.2の各接合端部2a
,2aを3 0sec 〜4 0sec間加熱して、こ
れら各接合端部2a,2aを2M〜3一程度溶融させる
That is, the heating temperature of the heater 3 is maintained at 750° C., and the radiant heat is used to heat each joint end 2a of each tube 2.2.
, 2a for 30 seconds to 40 seconds to melt the joint ends 2a, 2a to about 2M to 31 degrees.

この後、第4図に示すように、2本の各チューブ2,2
の対向間から加熱ヒータ3を取り除き、これら各チュー
ブ2,2を矢印方向に移動して溶融した各接合端部2a
,2aを接触させる。
After this, as shown in FIG. 4, each of the two tubes 2, 2
The heater 3 is removed from between the opposed tubes 2, 2, and each of the tubes 2, 2 is moved in the direction of the arrow to melt each joint end 2a.
, 2a are brought into contact.

さらに、第5図に示すように、これら各チューブ2,2
の各接合端部2a,2aを矢印方向に圧接して、第4図
に示す接触時点の溶着部2bの寸法Bから、第5図に示
す圧接時点の溶着部2bの寸法Cを減算した1閤〜1.
5mmの圧接寸法だけ押し付けることで、第2図にも示
すように、同一溶融状態に溶融した各チューブ2.2の
各接合端部2a,2aは均一に融合し、隙間無く一体的
に溶着される。
Furthermore, as shown in FIG.
The joint ends 2a, 2a of are pressed together in the direction of the arrow, and the dimension C of the welded part 2b at the time of pressure welding shown in Fig. 5 is subtracted from the dimension B of the welded part 2b at the time of contact shown in Fig. 4.閤〜1.
As shown in FIG. 2, by pressing only the pressure welding dimension of 5 mm, the joint ends 2a, 2a of each tube 2.2 melted in the same state are uniformly fused and welded together without any gaps. Ru.

このように2本の各チューブ2,2を一体的に溶着して
合成樹脂製チューブ1を形成しているので、引張り試験
に於いて、溶着部2bは約125聴の引張り力まで耐え
ることができ、溶着部2bの引張り強度はチューブ2自
体と同等以上の強度となり、配管時に於ける引張り力や
曲げ応力に対する耐久性が向上し、且つ、流体の移送圧
力や薬液の化学反応による発熱作用等により溶着部2b
が先に破断するのを積極的に防止することができ、流体
移送時に於けるシール性が向上し、配管資材として高い
信頼性が得られる。
Since the synthetic resin tube 1 is formed by integrally welding the two tubes 2, 2 in this way, the welded portion 2b can withstand a tensile force of about 125 mm in a tensile test. The tensile strength of the welded part 2b is equal to or higher than that of the tube 2 itself, and the durability against tensile force and bending stress during piping is improved, and the heat generation effect due to fluid transfer pressure and chemical reaction of chemicals is improved. Welded part 2b
It is possible to proactively prevent the pipe from breaking first, improve sealing performance during fluid transfer, and achieve high reliability as a piping material.

この発明の構成と、上述の実施例との対応において、 この発明の接合部は、実施例の接合端部2aと対応する
も、 この発明は上述の実施例の構成のみに限定されるもので
はない。
Regarding the correspondence between the configuration of this invention and the above-described embodiment, the joint portion of this invention corresponds to the joint end portion 2a of the embodiment, but this invention is not limited to the configuration of the above-described embodiment. do not have.

例えば、上述の合成樹脂製チューブ1を、塩化ビニール
やポリエチレン等の溶融合威樹脂から成る大径、肉薄の
各チューブ2.2を溶着して形成するもよい。
For example, the synthetic resin tube 1 described above may be formed by welding large-diameter, thin-walled tubes 2.2 made of molten composite resin such as vinyl chloride or polyethylene.

【図面の簡単な説明】[Brief explanation of drawings]

図面はこの発明の一実施例を示し、 第1図は合成樹脂製チューブの溶着部斜視図、第2図は
合威樹脂製チューブの溶着部縦断側面図、第3図はチュ
ーブの加熱状態を示す側面図、第4図はチューブの接触
状態を示す側面図、第5図はチューブの圧接状態を示す
側面図である。 1・・・合成樹脂製チューブ 2・・・チューブ    2a・・・接合端部2b・・
・溶着部    3・・・加熱ヒータ第1図 第2図
The drawings show an embodiment of the present invention, in which Fig. 1 is a perspective view of a welded part of a synthetic resin tube, Fig. 2 is a longitudinal cross-sectional side view of a welded part of a Hewei resin tube, and Fig. 3 shows the heating state of the tube. FIG. 4 is a side view showing a state in which the tubes are in contact with each other, and FIG. 5 is a side view showing a state in which the tubes are in pressure contact. 1...Synthetic resin tube 2...Tube 2a...Joining end 2b...
・Welded part 3...Heating heater Fig. 1 Fig. 2

Claims (1)

【特許請求の範囲】[Claims] (1)溶融合成樹脂により形成した複数本のチューブの
接合部を加熱ヒータに対して1mm〜6mm間隔に隔て
て対向し、 上記加熱ヒータにより600℃〜800℃ の温度で各チューブの接合部を所定時間加 熱して0.5〜5mm溶融した後、 上記同一溶融状態に溶融した各チューブの 接合部を軸方向に圧接して一体的に溶着し た 合成樹脂製チューブ。
(1) The joints of multiple tubes made of molten synthetic resin are opposed to a heater at intervals of 1 mm to 6 mm, and the joints of each tube are heated to a temperature of 600°C to 800°C by the heater. A synthetic resin tube is obtained by heating for a predetermined period of time to melt 0.5 to 5 mm, and then press the joined parts of the tubes melted to the same molten state in the axial direction to weld them together.
JP1161609A 1989-06-23 1989-06-23 Synthetic resin tube Granted JPH0326530A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1161609A JPH0326530A (en) 1989-06-23 1989-06-23 Synthetic resin tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1161609A JPH0326530A (en) 1989-06-23 1989-06-23 Synthetic resin tube

Publications (2)

Publication Number Publication Date
JPH0326530A true JPH0326530A (en) 1991-02-05
JPH0529538B2 JPH0529538B2 (en) 1993-04-30

Family

ID=15738415

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1161609A Granted JPH0326530A (en) 1989-06-23 1989-06-23 Synthetic resin tube

Country Status (1)

Country Link
JP (1) JPH0326530A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2021059753A1 (en) * 2019-09-24 2021-04-01

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS514273A (en) * 1974-06-29 1976-01-14 Mitsubishi Plastics Ind KOSHITSUEN KABINIRUKANNO BATSUTOJUCHAKUHOHO
JPS5218774A (en) * 1975-08-06 1977-02-12 Mitsubishi Plastics Ind Butt welding method for thermoplastic resin moldings
JPS5227483A (en) * 1975-08-28 1977-03-01 Mitsubishi Chem Ind Method of butttwelding pipe
JPS6120725A (en) * 1984-07-09 1986-01-29 フリューアロウェア インコーポレイテッド Welding fluoropolymer pipe and pipe joint
JPH0343054A (en) * 1989-07-11 1991-02-25 Mase Bankin Seisakusho:Kk Method for cutting and packing of bean curd and apparatus therefor
JPH0476773A (en) * 1990-07-19 1992-03-11 Nec Corp Map retrieving device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS514273A (en) * 1974-06-29 1976-01-14 Mitsubishi Plastics Ind KOSHITSUEN KABINIRUKANNO BATSUTOJUCHAKUHOHO
JPS5218774A (en) * 1975-08-06 1977-02-12 Mitsubishi Plastics Ind Butt welding method for thermoplastic resin moldings
JPS5227483A (en) * 1975-08-28 1977-03-01 Mitsubishi Chem Ind Method of butttwelding pipe
JPS6120725A (en) * 1984-07-09 1986-01-29 フリューアロウェア インコーポレイテッド Welding fluoropolymer pipe and pipe joint
JPH0343054A (en) * 1989-07-11 1991-02-25 Mase Bankin Seisakusho:Kk Method for cutting and packing of bean curd and apparatus therefor
JPH0476773A (en) * 1990-07-19 1992-03-11 Nec Corp Map retrieving device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2021059753A1 (en) * 2019-09-24 2021-04-01
WO2021059753A1 (en) * 2019-09-24 2021-04-01 ダイキン工業株式会社 Welded body
CN114375378A (en) * 2019-09-24 2022-04-19 大金工业株式会社 Deposited body
CN114375378B (en) * 2019-09-24 2024-02-09 大金工业株式会社 Welded body

Also Published As

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