JPH0374893B2 - - Google Patents

Info

Publication number
JPH0374893B2
JPH0374893B2 JP60243064A JP24306485A JPH0374893B2 JP H0374893 B2 JPH0374893 B2 JP H0374893B2 JP 60243064 A JP60243064 A JP 60243064A JP 24306485 A JP24306485 A JP 24306485A JP H0374893 B2 JPH0374893 B2 JP H0374893B2
Authority
JP
Japan
Prior art keywords
flight
screw
weir
main flight
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 - Lifetime
Application number
JP60243064A
Other languages
English (en)
Japanese (ja)
Other versions
JPS62103122A (ja
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 JP60243064A priority Critical patent/JPS62103122A/ja
Publication of JPS62103122A publication Critical patent/JPS62103122A/ja
Publication of JPH0374893B2 publication Critical patent/JPH0374893B2/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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/58—Details
    • B29C45/60—Screws
    • 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
    • B29C48/625—Screws characterised by the ratio of the threaded length of the screw to its outside diameter [L/D ratio]
    • 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)
  • Manufacturing & Machinery (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
JP60243064A 1985-10-30 1985-10-30 高混練スクリユ Granted JPS62103122A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60243064A JPS62103122A (ja) 1985-10-30 1985-10-30 高混練スクリユ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60243064A JPS62103122A (ja) 1985-10-30 1985-10-30 高混練スクリユ

Publications (2)

Publication Number Publication Date
JPS62103122A JPS62103122A (ja) 1987-05-13
JPH0374893B2 true JPH0374893B2 (en]) 1991-11-28

Family

ID=17098256

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60243064A Granted JPS62103122A (ja) 1985-10-30 1985-10-30 高混練スクリユ

Country Status (1)

Country Link
JP (1) JPS62103122A (en])

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3499059B2 (ja) * 1995-08-25 2004-02-23 株式会社ブリヂストン 押出し機用スクリュー
JP5645952B2 (ja) * 2010-10-25 2014-12-24 三菱重工プラスチックテクノロジー株式会社 射出成形用可塑化スクリュ及びこれを用いた射出成形方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6452169A (en) * 1987-08-24 1989-02-28 Tomoegawa Paper Co Ltd Electrophotographic planographic printing master plate
IT1218205B (it) * 1988-04-08 1990-04-12 Ausimont Spa Impiego di derivati dei perfluoropolieteri in forma di microemulsione acquosa per la protezione dei materiali lapidei dagli agenti atmosferici

Also Published As

Publication number Publication date
JPS62103122A (ja) 1987-05-13

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term