WO2000062991A1 - Procede servant a effectuer l'adherence d'un tuyau spirale - Google Patents

Procede servant a effectuer l'adherence d'un tuyau spirale Download PDF

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Publication number
WO2000062991A1
WO2000062991A1 PCT/KR2000/000353 KR0000353W WO0062991A1 WO 2000062991 A1 WO2000062991 A1 WO 2000062991A1 KR 0000353 W KR0000353 W KR 0000353W WO 0062991 A1 WO0062991 A1 WO 0062991A1
Authority
WO
WIPO (PCT)
Prior art keywords
profile
adhesive resin
spiral pipe
beam shape
filled
Prior art date
Application number
PCT/KR2000/000353
Other languages
English (en)
Inventor
Hyoung San Kye
Myung Nam Woo
Sun Woong Choi
Original Assignee
Paipax Environmental Engineering, Inc.
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
Priority claimed from KR1019990013691A external-priority patent/KR19990064616A/ko
Application filed by Paipax Environmental Engineering, Inc. filed Critical Paipax Environmental Engineering, Inc.
Priority to AU41487/00A priority Critical patent/AU4148700A/en
Priority to JP2000612108A priority patent/JP2003526537A/ja
Priority claimed from KR1020000020178A external-priority patent/KR20000071714A/ko
Publication of WO2000062991A1 publication Critical patent/WO2000062991A1/fr

Links

Classifications

    • 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
    • F16L9/00—Rigid pipes
    • F16L9/12—Rigid pipes of plastics with or without reinforcement
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • 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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/56—Winding and joining, e.g. winding spirally
    • B29C53/58—Winding and joining, e.g. winding spirally helically
    • B29C53/78—Winding and joining, e.g. winding spirally helically using profiled sheets or strips
    • 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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/80—Component parts, details or accessories; Auxiliary operations
    • B29C53/8008—Component parts, details or accessories; Auxiliary operations specially adapted for winding and joining
    • B29C53/8083—Improving bonding of wound materials or layers
    • 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
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/50—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
    • B29C65/5064—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like of particular form, e.g. being C-shaped, T-shaped
    • B29C65/5071—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like of particular form, e.g. being C-shaped, T-shaped and being composed by one single element
    • 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
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/50—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like
    • B29C65/5064—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like of particular form, e.g. being C-shaped, T-shaped
    • B29C65/5085—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding using adhesive tape, e.g. thermoplastic tape; using threads or the like of particular form, e.g. being C-shaped, T-shaped and comprising grooves, e.g. being E-shaped, H-shaped
    • 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
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/13—Articles with a cross-section varying in the longitudinal direction, e.g. corrugated pipes
    • 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
    • B29C66/124—Tongue and groove joints
    • B29C66/1244—Tongue and groove joints characterised by the male part, i.e. the part comprising the tongue
    • B29C66/12441—Tongue and groove joints characterised by the male part, i.e. the part comprising the tongue being a single wall
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/26—Scrap or recycled material

Definitions

  • the present invention relates to a spiral pipe used as a drainpipe or water conduit, and more particularly, to a method of bonding a spiral pipe in which adhesive resin completely wraps the surface of a rectangular profile forming an H beam shape when the spiral pipe is manufactured by a winder by wrapping resin around the rectangular profile having cavity or filled with a filler so that the spiral pipe can be bonded firmly.
  • a conventional spiral pipe 1 is formed by coating adhesive resin at one side of a rectangular profile 2 having cavity, winding the profile by a winder to make the profile 2 adhere to each other, and pressing the profile by a roller to form an I beam shape.
  • the adhesive resin is coated only between the neighboring profiles 2 so that an adhesive resin layer 3 having an I beam shape is formed.
  • the conventional spiral profile 1 having the I beam shaped adhesive resin layer 3 only between the surfaces of the neighboring profiles 2 has a weak bonding feature. Accordingly, when an external impact is applied, a crack is generated in a boundary surface between the profile 2 and the adhesive resin layer 3 and they are broken and separated from each other. Furthermore, when the spiral pipe 1 uses as a drainpipe or water conduit is broken and separated, contaminated water permeates earth and severely soils the earth and underground water and may cause subsidence of land.
  • a spiral pipe adhesion method comprising the steps of: melt-blending waste plastic by an extruding apparatus at a temperature of 180-250°C and extruding a rectangular profile, providing adhesive resin extruded from an auxiliary extruding apparatus to wrap the profile, before the profile is wound by a winder, and winding the profile wrapped by the adhesive resin around the winder, and pressing a surface of the adhesive resin coated around the outside of the wound profile so that the adhesive resin is pressed to have an H beam shape between the neighboring profiles and make the profiles adhere to each other.
  • the profile according to the present invention can be applied to any of a hollow profile having a space portion inside thereof or a filled profile of which the inside is filled with a filler.
  • Adhesive resin is coated forming a uniform body of the profile and the adhesive resin layer, in a manner of completely wrapping the surfaces of the neighboring profiles so that unevenness is not generated on the surface of the pipe after the adhesive resin layer is formed.
  • FIG. 1 is a partially cut-away perspective view showing the appearance and sectional structure of the conventional spiral pipe
  • FIG. 2 is a partially enlarged sectional view showing the adhesion structure of the conventional spiral pipe
  • FIG. 3 is a partially cut-away perspective view showing the appearance and sectional structure of a spiral pipe according to a preferred embodiment of the present invention
  • FIG. 4 is a partially enlarged sectional view showing the adhesion structure of the spiral pipe according to a preferred embodiment of the present invention
  • FIG. 5 is a partially cut-away perspective view showing the appearance and sectional structure of a spiral pipe according to another preferred embodiment of the present invention
  • FIG. 6 is a partially enlarged sectional view showing the adhesion structure of the spiral pipe according to another preferred embodiment of the present invention.
  • FIGS. 3 through 6 are for explaining a spiral pipe adhesion method according to preferred embodiments of the present invention.
  • FIGS. 3 and 4 are a partially cut-away perspective view and a partially enlarged sectional view showing the appearance and sectional structure of a spiral pipe, respectively, when the adhesion method according to the present invention is applied to a hollow profile 5.
  • FIGS. 5 and 6 are a partially cutaway perspective view and a partially enlarged sectional view showing the appearance and sectional structure of a spiral pipe when the adhesion method according to the present invention is applied to a filled profile 8.
  • the spiral pipe according to the present invention is formed by forming a rectangular hollow profile 5 by providing waste plastic in an extruding apparatus and forcibly extruding the material through a die having a predetermined shape.
  • Melted adhesive resin is input to the inside of an additional auxiliary extruding apparatus and forcibly extruded to completely wrap the hollow profile 5.
  • the hollow profile 5 coated with the adhesive resin is wound by a winder and simultaneously the surface of the adhesive resin is pressed by a roller so that the adhesive resin layer 6 forms an H beam shape.
  • a profile 8 of which the inside is filled with a filler 10 may be used instead of using the hollow profile 5, a profile 8 of which the inside is filled with a filler 10 may be used.
  • the adhesive resin is coated around and adheres to the surface of the profile 8 filled with the filler 10 so that the adhesive resin layer 9 can have an H beam shape.
  • waste plastic and a filler such as agricultural by-product, forestry byproduct, or fly ash are used by being melt-blended. Preferred embodiments of the present invention are described in detail as follows.
  • various waste plastics are melt- blended in the extruding apparatus at a melting temperature range of 180- 250°C and extruded through a rectangular die to form the hollow profile 5.
  • the adhesive resin is extruded from the additional auxiliary extruding apparatus, to make the hollow profile 5 continuously wound with a predetermined diameter adhere to each other, and the hollow profile 5 is completely wrapped by the adhesive resin.
  • the hollow profile 5 in such a state is provided and wound by the winder.
  • the adhesive resin layer 6 adhering the hollow profile 5 of the spiral pipe 4 completely wraps the hollow profile 5 whiling forming an H beam shape, impact strength and annular rigidity coefficient are drastically improved, compared to the conventional spiral pipe 1.
  • adhesive resin is extruded from the auxiliary extruding apparatus to make the filled profile 8, which is continuously wound with a predetermined diameter, adhere to each other, so that the filled profile 8 is completely wrapped by the adhesive resin.
  • the filled profile 8 in the above state is provided to the winder to be wound.
  • the filled profile 8, of which all surfaces are wrapped by the adhesive resin, is wound by the winder and simultaneously pressed by the roller so as to be bonded each other, the adhesive resin layer 9 between the filled profiles 8 forms an H beam shape.
  • the adhesive resin layer 9 for bonding the filled profile 9 of the spiral pipe 7 forms an H beam shape to completely wrap the filled profile 8, so that impact strength and annular rigidity coefficient can be drastically improved, compared to the conventional spiral pipe 1.
  • the spiral pipe is formed by wrapping the profile, which is formed by the extruding apparatus by melt-blending materials, and pressing the adhesive resin between the neighboring profiles to make the profiles adhere to each other.
  • the adhesive resin layer bonds the profiles in an H beam shape, so that a spiral pipe formed of a uniform body of the profile and the adhesive resin is provided.
  • the spiral pipe is formed in a uniform body while maintaining an H beam shape, the adhesion force is drastically improved, compared to the conventional pipe. As a result, the spiral pipe can well bear external pressure, static load and dynamic load and the impact resistance and annular rigidity coefficient are drastically improved. Since sludge is not accumulated in the pipe, drainpipe clogging can be prevented.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Sewage (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

Procédé servant à effectuer l'adhérence d'un tuyau spiralé utilisé en tant que conduit de vidange ou canalisation d'eau, et consistant à améliorer la forme en I de la résine adhésive en une forme en H, de façon à augmenter le coefficient de rigidité ou le coefficient de rigidité annulaire. On utilise un matériau tel que du polyéthylène afin d'obtenir un profil rectangulaire présentant une cavité pleine ou vide. On effectue une alimentation en résine au moyen d'un dispositif auxiliaire d'extrusion afin d'envelopper le profil selon une forme de H, de sorte que les profils adhèrent l'un à l'autre. Etant donné que la couche de résine adhésive présente une forme de H, le profil peut supporter la pression, l'impact et la charge extérieurs, est protégé contre la rupture et améliore considérablement son coefficient de rigidité. Ce procédé permet de réaliser une économie basée sur l'allongement de la durée de vie du produit et d'obtenir un aspect esthétique.
PCT/KR2000/000353 1999-04-17 2000-04-17 Procede servant a effectuer l'adherence d'un tuyau spirale WO2000062991A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU41487/00A AU4148700A (en) 1999-04-17 2000-04-17 Adhesive method for spiral pipe
JP2000612108A JP2003526537A (ja) 1999-04-17 2000-04-17 スパイラルパイプの接着方法

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR1999/13691 1999-04-17
KR1019990013691A KR19990064616A (ko) 1999-04-17 1999-04-17 스파이럴 파이프 접착방법
KR2000/20178 2000-04-17
KR1020000020178A KR20000071714A (ko) 2000-04-17 2000-04-17 스파이럴 파이프 접착방법

Publications (1)

Publication Number Publication Date
WO2000062991A1 true WO2000062991A1 (fr) 2000-10-26

Family

ID=26634955

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2000/000353 WO2000062991A1 (fr) 1999-04-17 2000-04-17 Procede servant a effectuer l'adherence d'un tuyau spirale

Country Status (4)

Country Link
JP (1) JP2003526537A (fr)
CN (1) CN1351536A (fr)
AU (1) AU4148700A (fr)
WO (1) WO2000062991A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111022781A (zh) * 2019-12-05 2020-04-17 杭州坦科机械科技有限公司 中空壁结构玻璃钢管道及其制作工艺

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0311188A (ja) * 1989-06-09 1991-01-18 Toshiba Corp 圧縮機
JPH054275A (ja) * 1991-06-28 1993-01-14 Kawasaki Steel Corp 積層スパイラル管の製造方法および装置
JPH08267601A (ja) * 1995-03-29 1996-10-15 Tonen Chem Corp 管端部が平滑な合成樹脂製コルゲート管及びその製造方法
JPH08267602A (ja) * 1995-03-31 1996-10-15 Tonen Chem Corp フランジ継手付合成樹脂製コルゲート管及びその製造方法
JPH1158538A (ja) * 1997-08-18 1999-03-02 Fujikura Rubber Ltd 中空パイプ及びその製造方法
KR19990064616A (ko) * 1999-04-17 1999-08-05 정우현 스파이럴 파이프 접착방법
KR19990064617A (ko) * 1999-04-17 1999-08-05 정우현 폐플라스틱을 이용한 스파이럴 파이프 및 그 성형장치

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0311188A (ja) * 1989-06-09 1991-01-18 Toshiba Corp 圧縮機
JPH054275A (ja) * 1991-06-28 1993-01-14 Kawasaki Steel Corp 積層スパイラル管の製造方法および装置
JPH08267601A (ja) * 1995-03-29 1996-10-15 Tonen Chem Corp 管端部が平滑な合成樹脂製コルゲート管及びその製造方法
JPH08267602A (ja) * 1995-03-31 1996-10-15 Tonen Chem Corp フランジ継手付合成樹脂製コルゲート管及びその製造方法
JPH1158538A (ja) * 1997-08-18 1999-03-02 Fujikura Rubber Ltd 中空パイプ及びその製造方法
KR19990064616A (ko) * 1999-04-17 1999-08-05 정우현 스파이럴 파이프 접착방법
KR19990064617A (ko) * 1999-04-17 1999-08-05 정우현 폐플라스틱을 이용한 스파이럴 파이프 및 그 성형장치

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111022781A (zh) * 2019-12-05 2020-04-17 杭州坦科机械科技有限公司 中空壁结构玻璃钢管道及其制作工艺

Also Published As

Publication number Publication date
CN1351536A (zh) 2002-05-29
AU4148700A (en) 2000-11-02
JP2003526537A (ja) 2003-09-09

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