JPS5499163A - Production of resin pipes with hollow holes in the pipe wall in the direction of the pipe shaft where holes are adequately clotted. - Google Patents

Production of resin pipes with hollow holes in the pipe wall in the direction of the pipe shaft where holes are adequately clotted.

Info

Publication number
JPS5499163A
JPS5499163A JP636978A JP636978A JPS5499163A JP S5499163 A JPS5499163 A JP S5499163A JP 636978 A JP636978 A JP 636978A JP 636978 A JP636978 A JP 636978A JP S5499163 A JPS5499163 A JP S5499163A
Authority
JP
Japan
Prior art keywords
holes
pipe
hollow holes
production
pipes
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
JP636978A
Other languages
Japanese (ja)
Other versions
JPS5942615B2 (en
Inventor
Noboru Iida
Goro Hattori
Mitsuhiro Watanabe
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.)
Sekisui Chemical Co Ltd
Original Assignee
Sekisui Chemical Co 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 Sekisui Chemical Co Ltd filed Critical Sekisui Chemical Co Ltd
Priority to JP53006369A priority Critical patent/JPS5942615B2/en
Publication of JPS5499163A publication Critical patent/JPS5499163A/en
Publication of JPS5942615B2 publication Critical patent/JPS5942615B2/en
Expired 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
    • 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
    • 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
    • B29C48/11—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels comprising two or more partially or fully enclosed cavities, e.g. honeycomb-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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • 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
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/60—Multitubular or multicompartmented articles, e.g. honeycomb

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE:In the production of synthetic resin pipes which are light-weight and have high strength against flatening load because these pipes have a number of hollow holes in the wall in the direction of the pipe shaft, a pin fitted in the resin path of the mold is provided with a through hole that is intermittently evacuated, thereby clotting adequate places in hollow holes. CONSTITUTION:A molten resin continuously extruded from extruder A is passed through annular path 4 in mold B and made into a pipe. At this time hollow holes 91, 91' are formed in the pipe wall in the direction of the pipe shaft by pins 7 which are concentrically fitted in resin path 4 with an adequate interval wherein hollow part 91 formed by pin 7 is intermittently evacuated through through-hole 71 in pin 7 to fuse and clot the hole, thereby producing pipes suitably used for piping.
JP53006369A 1978-01-23 1978-01-23 A method for producing a resin pipe in which holes are arranged in parallel in the tube wall in the tube axis direction, and the holes are closed at appropriate locations. Expired JPS5942615B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53006369A JPS5942615B2 (en) 1978-01-23 1978-01-23 A method for producing a resin pipe in which holes are arranged in parallel in the tube wall in the tube axis direction, and the holes are closed at appropriate locations.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53006369A JPS5942615B2 (en) 1978-01-23 1978-01-23 A method for producing a resin pipe in which holes are arranged in parallel in the tube wall in the tube axis direction, and the holes are closed at appropriate locations.

Publications (2)

Publication Number Publication Date
JPS5499163A true JPS5499163A (en) 1979-08-04
JPS5942615B2 JPS5942615B2 (en) 1984-10-16

Family

ID=11636444

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53006369A Expired JPS5942615B2 (en) 1978-01-23 1978-01-23 A method for producing a resin pipe in which holes are arranged in parallel in the tube wall in the tube axis direction, and the holes are closed at appropriate locations.

Country Status (1)

Country Link
JP (1) JPS5942615B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60193628A (en) * 1984-03-16 1985-10-02 Mitsubishi Plastics Ind Ltd Manufacture of porous plastic pipe
WO2007003717A1 (en) * 2005-07-04 2007-01-11 Maillefer S.A. Extrusion method and extrusion apparatus
CN103264505A (en) * 2013-05-23 2013-08-28 天津市宝力圣尼塑管制造有限公司 Manufacturing process of polyethylene steel belt corrugated pipe

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60193628A (en) * 1984-03-16 1985-10-02 Mitsubishi Plastics Ind Ltd Manufacture of porous plastic pipe
JPH0522570B2 (en) * 1984-03-16 1993-03-30 Mitsubishi Plastics Ind
WO2007003717A1 (en) * 2005-07-04 2007-01-11 Maillefer S.A. Extrusion method and extrusion apparatus
CN103264505A (en) * 2013-05-23 2013-08-28 天津市宝力圣尼塑管制造有限公司 Manufacturing process of polyethylene steel belt corrugated pipe
CN103264505B (en) * 2013-05-23 2015-12-02 天津市宝力圣尼塑管制造有限公司 A kind of manufacturing process of polyethylene steel belt bellows

Also Published As

Publication number Publication date
JPS5942615B2 (en) 1984-10-16

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