JPS5515293B2 - - Google Patents

Info

Publication number
JPS5515293B2
JPS5515293B2 JP3260872A JP3260872A JPS5515293B2 JP S5515293 B2 JPS5515293 B2 JP S5515293B2 JP 3260872 A JP3260872 A JP 3260872A JP 3260872 A JP3260872 A JP 3260872A JP S5515293 B2 JPS5515293 B2 JP S5515293B2
Authority
JP
Japan
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.)
Expired
Application number
JP3260872A
Other languages
Japanese (ja)
Other versions
JPS48100468A (en
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 filed Critical
Priority to JP3260872A priority Critical patent/JPS5515293B2/ja
Publication of JPS48100468A publication Critical patent/JPS48100468A/ja
Publication of JPS5515293B2 publication Critical patent/JPS5515293B2/ja
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
    • B29C48/25—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
    • B29C48/3363—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 using a layered die, e.g. stacked discs
    • 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)
JP3260872A 1972-04-03 1972-04-03 Expired JPS5515293B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3260872A JPS5515293B2 (en) 1972-04-03 1972-04-03

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3260872A JPS5515293B2 (en) 1972-04-03 1972-04-03

Publications (2)

Publication Number Publication Date
JPS48100468A JPS48100468A (en) 1973-12-18
JPS5515293B2 true JPS5515293B2 (en) 1980-04-22

Family

ID=12363557

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3260872A Expired JPS5515293B2 (en) 1972-04-03 1972-04-03

Country Status (1)

Country Link
JP (1) JPS5515293B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988005381A1 (en) * 1987-01-16 1988-07-28 The Dow Chemical Company A hollow light conductor, method and apparatus for manufacturing the same
JPH02118143A (en) * 1988-10-27 1990-05-02 Du Pont Toray Co Ltd Elastic single circular knitted fabric

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51106164A (en) * 1975-03-17 1976-09-20 Japan Steel Works Ltd
JPS6059132B2 (en) * 1975-11-18 1985-12-24 凸版印刷株式会社 Multilayer parison molding equipment for large blow molding
WO1988000125A1 (en) * 1986-06-26 1988-01-14 General Electric Company Modular extrusion head, method, intermediate product and product

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2790202A (en) * 1952-03-31 1957-04-30 Lorenian Zareh Method and apparatus for manufacturing pencils

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2790202A (en) * 1952-03-31 1957-04-30 Lorenian Zareh Method and apparatus for manufacturing pencils

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988005381A1 (en) * 1987-01-16 1988-07-28 The Dow Chemical Company A hollow light conductor, method and apparatus for manufacturing the same
JPH02118143A (en) * 1988-10-27 1990-05-02 Du Pont Toray Co Ltd Elastic single circular knitted fabric

Also Published As

Publication number Publication date
JPS48100468A (en) 1973-12-18

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