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 (enrdf_load_stackoverflow
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 (enrdf_load_stackoverflow)

Priority Applications (1)

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

Applications Claiming Priority (1)

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

Publications (2)

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

Family

ID=12142908

Family Applications (1)

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

Country Status (1)

Country Link
JP (1) JPS545833B2 (enrdf_load_stackoverflow)

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 (enrdf_load_stackoverflow) * 1971-12-18 1973-09-14
JPS4977962A (enrdf_load_stackoverflow) * 1972-11-29 1974-07-26
JPS5190372U (enrdf_load_stackoverflow) * 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 (enrdf_load_stackoverflow) * 1971-12-18 1973-09-14
JPS4977962A (enrdf_load_stackoverflow) * 1972-11-29 1974-07-26
JPS5190372U (enrdf_load_stackoverflow) * 1975-01-16 1976-07-20

Also Published As

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

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