JPS63161814U - - Google Patents

Info

Publication number
JPS63161814U
JPS63161814U JP1987055799U JP5579987U JPS63161814U JP S63161814 U JPS63161814 U JP S63161814U JP 1987055799 U JP1987055799 U JP 1987055799U JP 5579987 U JP5579987 U JP 5579987U JP S63161814 U JPS63161814 U JP S63161814U
Authority
JP
Japan
Prior art keywords
barrel
resin material
sub
screw type
flight
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
JP1987055799U
Other languages
English (en)
Japanese (ja)
Other versions
JPH0414185Y2 (bg
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 JP1987055799U priority Critical patent/JPH0414185Y2/ja
Publication of JPS63161814U publication Critical patent/JPS63161814U/ja
Application granted granted Critical
Publication of JPH0414185Y2 publication Critical patent/JPH0414185Y2/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
    • B29C48/64—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
    • 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
    • B29C48/59—Screws characterised by details of the thread, i.e. the shape of a single thread of the material-feeding screw
    • B29C48/60—Thread tops
    • 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
    • B29C48/66—Barrier threads, i.e. comprising primary and secondary threads whereby the secondary thread provides clearance to the barrel for material movement

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
JP1987055799U 1987-04-13 1987-04-13 Expired JPH0414185Y2 (bg)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987055799U JPH0414185Y2 (bg) 1987-04-13 1987-04-13

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987055799U JPH0414185Y2 (bg) 1987-04-13 1987-04-13

Publications (2)

Publication Number Publication Date
JPS63161814U true JPS63161814U (bg) 1988-10-21
JPH0414185Y2 JPH0414185Y2 (bg) 1992-03-31

Family

ID=30884035

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987055799U Expired JPH0414185Y2 (bg) 1987-04-13 1987-04-13

Country Status (1)

Country Link
JP (1) JPH0414185Y2 (bg)

Also Published As

Publication number Publication date
JPH0414185Y2 (bg) 1992-03-31

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