JPS5198766A - - Google Patents

Info

Publication number
JPS5198766A
JPS5198766A JP50024610A JP2461075A JPS5198766A JP S5198766 A JPS5198766 A JP S5198766A JP 50024610 A JP50024610 A JP 50024610A JP 2461075 A JP2461075 A JP 2461075A JP S5198766 A JPS5198766 A JP S5198766A
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.)
Granted
Application number
JP50024610A
Other languages
Japanese (ja)
Other versions
JPS545833B2 (cs
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 JP2461075A priority Critical patent/JPS545833B2/ja
Publication of JPS5198766A publication Critical patent/JPS5198766A/ja
Publication of JPS545833B2 publication Critical patent/JPS545833B2/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
    • B29C48/3366—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 die with concentric parts, e.g. rings, cylinders
    • 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)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
JP2461075A 1975-02-27 1975-02-27 Expired JPS545833B2 (cs)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2461075A JPS545833B2 (cs) 1975-02-27 1975-02-27

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2461075A JPS545833B2 (cs) 1975-02-27 1975-02-27

Publications (2)

Publication Number Publication Date
JPS5198766A true JPS5198766A (cs) 1976-08-31
JPS545833B2 JPS545833B2 (cs) 1979-03-22

Family

ID=12142908

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2461075A Expired JPS545833B2 (cs) 1975-02-27 1975-02-27

Country Status (1)

Country Link
JP (1) JPS545833B2 (cs)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110906066A (zh) * 2019-12-09 2020-03-24 东台市竹林高科技材料有限公司 一种高强度抗压性的pvc管及其制备方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4867353A (cs) * 1971-12-18 1973-09-14
JPS4977962A (cs) * 1972-11-29 1974-07-26
JPS5190372U (cs) * 1975-01-16 1976-07-20

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4867353A (cs) * 1971-12-18 1973-09-14
JPS4977962A (cs) * 1972-11-29 1974-07-26
JPS5190372U (cs) * 1975-01-16 1976-07-20

Also Published As

Publication number Publication date
JPS545833B2 (cs) 1979-03-22

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