JPH0326530A - Synthetic resin tube - Google Patents
Synthetic resin tubeInfo
- 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
Links
- 239000000057 synthetic resin Substances 0.000 title claims abstract description 18
- 229920003002 synthetic resin Polymers 0.000 title claims abstract description 18
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 238000003825 pressing Methods 0.000 abstract description 2
- 238000003466 welding Methods 0.000 description 10
- 239000012530 fluid Substances 0.000 description 6
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 2
- 239000000805 composite resin Substances 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- -1 polyethylene Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
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
- B29C66/01—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
- B29C66/114—Single butt joints
- B29C66/1142—Single butt to butt 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
- 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
- B29C65/14—Joining 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
- B29C65/1429—Joining 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
- B29C65/1432—Joining 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
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/90—Measuring or controlling the joining process
- B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
- B29C66/914—Measuring 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
- B29C66/9141—Measuring 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
- B29C66/91411—Measuring 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
-
- 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
- B29C66/90—Measuring or controlling the joining process
- B29C66/91—Measuring or controlling the joining process by measuring or controlling the temperature, the heat or the thermal flux
- B29C66/919—Measuring 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
-
- 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
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
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)
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.
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)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2021059753A1 (en) * | 2019-09-24 | 2021-04-01 |
Citations (6)
| 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 |
-
1989
- 1989-06-23 JP JP1161609A patent/JPH0326530A/en active Granted
Patent Citations (6)
| 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)
| 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
| Publication number | Publication date |
|---|---|
| JPH0529538B2 (en) | 1993-04-30 |
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