JPS61175429U - - Google Patents

Info

Publication number
JPS61175429U
JPS61175429U JP1985060046U JP6004685U JPS61175429U JP S61175429 U JPS61175429 U JP S61175429U JP 1985060046 U JP1985060046 U JP 1985060046U JP 6004685 U JP6004685 U JP 6004685U JP S61175429 U JPS61175429 U JP S61175429U
Authority
JP
Japan
Prior art keywords
weir
screw
sub
main screw
main
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.)
Granted
Application number
JP1985060046U
Other languages
English (en)
Japanese (ja)
Other versions
JPH0222268Y2 (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 JP1985060046U priority Critical patent/JPH0222268Y2/ja
Publication of JPS61175429U publication Critical patent/JPS61175429U/ja
Application granted granted Critical
Publication of JPH0222268Y2 publication Critical patent/JPH0222268Y2/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
    • B29C48/68—Barrels or cylinders
    • B29C48/685—Barrels or cylinders characterised by their inner surfaces, e.g. having grooves, projections or threads
    • B29C48/686—Barrels or cylinders characterised by their inner surfaces, e.g. having grooves, projections or threads having grooves or cavities
    • 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
    • B29C48/575—Screws provided with elements of a generally circular cross-section for shearing the melt, i.e. shear-ring elements
    • 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
    • B29C48/65—Screws with two or more threads neighbouring threads or channels having different configurations, e.g. one thread being lower than its neighbouring thread

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
JP1985060046U 1985-04-22 1985-04-22 Expired JPH0222268Y2 (enrdf_load_stackoverflow)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1985060046U JPH0222268Y2 (enrdf_load_stackoverflow) 1985-04-22 1985-04-22

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1985060046U JPH0222268Y2 (enrdf_load_stackoverflow) 1985-04-22 1985-04-22

Publications (2)

Publication Number Publication Date
JPS61175429U true JPS61175429U (enrdf_load_stackoverflow) 1986-11-01
JPH0222268Y2 JPH0222268Y2 (enrdf_load_stackoverflow) 1990-06-15

Family

ID=30587034

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1985060046U Expired JPH0222268Y2 (enrdf_load_stackoverflow) 1985-04-22 1985-04-22

Country Status (1)

Country Link
JP (1) JPH0222268Y2 (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPH0222268Y2 (enrdf_load_stackoverflow) 1990-06-15

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