JPS4998875A - - Google Patents

Info

Publication number
JPS4998875A
JPS4998875A JP48006789A JP678973A JPS4998875A JP S4998875 A JPS4998875 A JP S4998875A JP 48006789 A JP48006789 A JP 48006789A JP 678973 A JP678973 A JP 678973A JP S4998875 A JPS4998875 A JP S4998875A
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
JP48006789A
Other languages
Japanese (ja)
Other versions
JPS5513895B2 (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 JP678973A priority Critical patent/JPS5513895B2/ja
Publication of JPS4998875A publication Critical patent/JPS4998875A/ja
Publication of JPS5513895B2 publication Critical patent/JPS5513895B2/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
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/535—Screws with thread pitch varying along the longitudinal axis
    • 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
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/585—Screws provided with gears interacting with the flow
    • 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
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/64—Screws with two or more threads

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Molding Of Porous Articles (AREA)
  • Processes Specially Adapted For Manufacturing Cables (AREA)
JP678973A 1973-01-13 1973-01-13 Expired JPS5513895B2 (en])

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP678973A JPS5513895B2 (en]) 1973-01-13 1973-01-13

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP678973A JPS5513895B2 (en]) 1973-01-13 1973-01-13

Publications (2)

Publication Number Publication Date
JPS4998875A true JPS4998875A (en]) 1974-09-18
JPS5513895B2 JPS5513895B2 (en]) 1980-04-12

Family

ID=11647931

Family Applications (1)

Application Number Title Priority Date Filing Date
JP678973A Expired JPS5513895B2 (en]) 1973-01-13 1973-01-13

Country Status (1)

Country Link
JP (1) JPS5513895B2 (en])

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51121190A (en) * 1975-04-15 1976-10-22 Hitachi Cable Ltd Apparatus for manufacturing linear thermoplastic resin foam
JPS5357478A (en) * 1976-11-04 1978-05-24 Sumitomo Electric Ind Ltd Manufacturing process of highly-foamed insulated cable
JPH03233814A (ja) * 1990-02-09 1991-10-17 Sumitomo Electric Ind Ltd 高発泡絶縁押出機

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51121190A (en) * 1975-04-15 1976-10-22 Hitachi Cable Ltd Apparatus for manufacturing linear thermoplastic resin foam
JPS5357478A (en) * 1976-11-04 1978-05-24 Sumitomo Electric Ind Ltd Manufacturing process of highly-foamed insulated cable
JPH03233814A (ja) * 1990-02-09 1991-10-17 Sumitomo Electric Ind Ltd 高発泡絶縁押出機

Also Published As

Publication number Publication date
JPS5513895B2 (en]) 1980-04-12

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