JPS53105563A - Process and apparatus for production of multilayer straight plastic pipe having many wall thickness ratio - Google Patents

Process and apparatus for production of multilayer straight plastic pipe having many wall thickness ratio

Info

Publication number
JPS53105563A
JPS53105563A JP2028877A JP2028877A JPS53105563A JP S53105563 A JPS53105563 A JP S53105563A JP 2028877 A JP2028877 A JP 2028877A JP 2028877 A JP2028877 A JP 2028877A JP S53105563 A JPS53105563 A JP S53105563A
Authority
JP
Japan
Prior art keywords
production
wall thickness
plastic pipe
thickness ratio
many wall
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.)
Pending
Application number
JP2028877A
Other languages
English (en)
Inventor
Kiyouichi Kataoka
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.)
ONDOORU SHISUTEMU KK
Original Assignee
ONDOORU SHISUTEMU KK
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 ONDOORU SHISUTEMU KK filed Critical ONDOORU SHISUTEMU KK
Priority to JP2028877A priority Critical patent/JPS53105563A/ja
Publication of JPS53105563A publication Critical patent/JPS53105563A/ja
Pending 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
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B29C48/335—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles
    • B29C48/336—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles the components merging one by one down streams in the die
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
JP2028877A 1977-02-28 1977-02-28 Process and apparatus for production of multilayer straight plastic pipe having many wall thickness ratio Pending JPS53105563A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2028877A JPS53105563A (en) 1977-02-28 1977-02-28 Process and apparatus for production of multilayer straight plastic pipe having many wall thickness ratio

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2028877A JPS53105563A (en) 1977-02-28 1977-02-28 Process and apparatus for production of multilayer straight plastic pipe having many wall thickness ratio

Publications (1)

Publication Number Publication Date
JPS53105563A true JPS53105563A (en) 1978-09-13

Family

ID=12022970

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2028877A Pending JPS53105563A (en) 1977-02-28 1977-02-28 Process and apparatus for production of multilayer straight plastic pipe having many wall thickness ratio

Country Status (1)

Country Link
JP (1) JPS53105563A (ja)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5403534A (en) * 1991-09-26 1995-04-04 Tritec International Corporation Disposable razor
EP0659535A2 (de) * 1993-12-23 1995-06-28 Ems-Inventa Ag Kühlflüssigkeitsleitung
EP1372776A2 (en) * 2001-03-05 2004-01-02 James C. Wang Injector tip-and-die assembly construction and method
JP2013252684A (ja) * 2012-06-08 2013-12-19 Konica Minolta Inc 導電性樹脂成形体の製造方法
US11919272B2 (en) 2019-03-19 2024-03-05 Sumitomo Riko Company Limited Multilayer tube

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5403534A (en) * 1991-09-26 1995-04-04 Tritec International Corporation Disposable razor
US5553384A (en) * 1991-09-26 1996-09-10 Tritec International Corporation Disposable razor
EP0878274A1 (en) * 1991-09-26 1998-11-18 Tritec International Corporation Method for producing a wet shaving razor
EP0659535A2 (de) * 1993-12-23 1995-06-28 Ems-Inventa Ag Kühlflüssigkeitsleitung
EP0659535A3 (de) * 1993-12-23 1995-11-29 Inventa Ag Kühlflüssigkeitsleitung.
US5588468A (en) * 1993-12-23 1996-12-31 Ems-Inventa Ag Blow-molded coolant conduit
KR100341603B1 (ko) * 1993-12-23 2002-11-01 에엠에스-인벤타 아게 중공성형된냉각제도관
EP1372776A2 (en) * 2001-03-05 2004-01-02 James C. Wang Injector tip-and-die assembly construction and method
EP1372776A4 (en) * 2001-03-05 2005-12-21 James C Wang PREPARATION OF AN INJECTION OF INJECTOR TIP AND STAMP AND METHOD THEREFOR
JP2013252684A (ja) * 2012-06-08 2013-12-19 Konica Minolta Inc 導電性樹脂成形体の製造方法
US11919272B2 (en) 2019-03-19 2024-03-05 Sumitomo Riko Company Limited Multilayer tube

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