JPS642496B2 - - Google Patents

Info

Publication number
JPS642496B2
JPS642496B2 JP59208908A JP20890884A JPS642496B2 JP S642496 B2 JPS642496 B2 JP S642496B2 JP 59208908 A JP59208908 A JP 59208908A JP 20890884 A JP20890884 A JP 20890884A JP S642496 B2 JPS642496 B2 JP S642496B2
Authority
JP
Japan
Prior art keywords
flight
auxiliary
zone
main flight
screw
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
JP59208908A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6186232A (ja
Inventor
Hiroshi Kumazaki
Mitsuaki Ejima
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shibaura Machine Co Ltd
Original Assignee
Toshiba Machine Co Ltd
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 by Toshiba Machine Co Ltd filed Critical Toshiba Machine Co Ltd
Priority to JP59208908A priority Critical patent/JPS6186232A/ja
Publication of JPS6186232A publication Critical patent/JPS6186232A/ja
Publication of JPS642496B2 publication Critical patent/JPS642496B2/ja
Granted 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
    • B29C48/03—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
JP59208908A 1984-10-04 1984-10-04 プラスチツク成形用スクリユ Granted JPS6186232A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59208908A JPS6186232A (ja) 1984-10-04 1984-10-04 プラスチツク成形用スクリユ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59208908A JPS6186232A (ja) 1984-10-04 1984-10-04 プラスチツク成形用スクリユ

Publications (2)

Publication Number Publication Date
JPS6186232A JPS6186232A (ja) 1986-05-01
JPS642496B2 true JPS642496B2 (en]) 1989-01-17

Family

ID=16564112

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59208908A Granted JPS6186232A (ja) 1984-10-04 1984-10-04 プラスチツク成形用スクリユ

Country Status (1)

Country Link
JP (1) JPS6186232A (en])

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH077136Y2 (ja) * 1989-07-21 1995-02-22 住友重機械工業株式会社 射出成形用スクリュー

Also Published As

Publication number Publication date
JPS6186232A (ja) 1986-05-01

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