JPH0222268Y2 - - Google Patents

Info

Publication number
JPH0222268Y2
JPH0222268Y2 JP1985060046U JP6004685U JPH0222268Y2 JP H0222268 Y2 JPH0222268 Y2 JP H0222268Y2 JP 1985060046 U JP1985060046 U JP 1985060046U JP 6004685 U JP6004685 U JP 6004685U JP H0222268 Y2 JPH0222268 Y2 JP H0222268Y2
Authority
JP
Japan
Prior art keywords
screw
weir
groove
kneading
sub
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
JP1985060046U
Other languages
English (en)
Japanese (ja)
Other versions
JPS61175429U (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 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 (en])

Priority Applications (1)

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

Applications Claiming Priority (1)

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

Publications (2)

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

Family

ID=30587034

Family Applications (1)

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

Country Status (1)

Country Link
JP (1) JPH0222268Y2 (en])

Also Published As

Publication number Publication date
JPS61175429U (en]) 1986-11-01

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