JPH0244985Y2 - - Google Patents

Info

Publication number
JPH0244985Y2
JPH0244985Y2 JP1985128085U JP12808585U JPH0244985Y2 JP H0244985 Y2 JPH0244985 Y2 JP H0244985Y2 JP 1985128085 U JP1985128085 U JP 1985128085U JP 12808585 U JP12808585 U JP 12808585U JP H0244985 Y2 JPH0244985 Y2 JP H0244985Y2
Authority
JP
Japan
Prior art keywords
mandrel
resin
die
layer
intermediate layer
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.)
Expired
Application number
JP1985128085U
Other languages
English (en)
Japanese (ja)
Other versions
JPS6235814U (de
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 JP1985128085U priority Critical patent/JPH0244985Y2/ja
Publication of JPS6235814U publication Critical patent/JPS6235814U/ja
Application granted granted Critical
Publication of JPH0244985Y2 publication Critical patent/JPH0244985Y2/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
    • 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)
JP1985128085U 1985-08-22 1985-08-22 Expired JPH0244985Y2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1985128085U JPH0244985Y2 (de) 1985-08-22 1985-08-22

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1985128085U JPH0244985Y2 (de) 1985-08-22 1985-08-22

Publications (2)

Publication Number Publication Date
JPS6235814U JPS6235814U (de) 1987-03-03
JPH0244985Y2 true JPH0244985Y2 (de) 1990-11-29

Family

ID=31023434

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1985128085U Expired JPH0244985Y2 (de) 1985-08-22 1985-08-22

Country Status (1)

Country Link
JP (1) JPH0244985Y2 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4944972A (en) * 1987-12-31 1990-07-31 American National Can Company Coextrusion apparatus, methods, and related films and packages
JP2731799B2 (ja) * 1989-06-06 1998-03-25 株式会社フジクラ 樹脂の押出被覆方法
JPH0795591B2 (ja) * 1990-02-21 1995-10-11 松下電器産業株式会社 固体撮像装置およびその製造方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55152030A (en) * 1979-05-10 1980-11-27 Sogecan Method and device for manufacturing compound plastic pipe by extrusion

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55152030A (en) * 1979-05-10 1980-11-27 Sogecan Method and device for manufacturing compound plastic pipe by extrusion

Also Published As

Publication number Publication date
JPS6235814U (de) 1987-03-03

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