ES444475A1 - Plastic material plasticizer screw - Google Patents

Plastic material plasticizer screw

Info

Publication number
ES444475A1
ES444475A1 ES444475A ES444475A ES444475A1 ES 444475 A1 ES444475 A1 ES 444475A1 ES 444475 A ES444475 A ES 444475A ES 444475 A ES444475 A ES 444475A ES 444475 A1 ES444475 A1 ES 444475A1
Authority
ES
Spain
Prior art keywords
plastic material
helical profile
material plasticizer
plasticizer screw
cylinder
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
ES444475A
Other languages
Spanish (es)
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.)
SANDRETTO SpA
Original Assignee
SANDRETTO SpA
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 SANDRETTO SpA filed Critical SANDRETTO SpA
Publication of ES444475A1 publication Critical patent/ES444475A1/en
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
    • B29C48/59—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
    • B29C48/03—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)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Screw Conveyors (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

Plasticizing screw for plastic materials, with a helical profile, of the type consisting of a shaft rotating in a heated cylinder, whose shaft comprises a helical profile projected therefrom and arranged to drag the material to be laminated in cooperation with the internal wall of said cylinder, characterized in that said helical profile comprises notches. (Machine-translation by Google Translate, not legally binding)
ES444475A 1975-10-07 1976-01-20 Plastic material plasticizer screw Expired ES444475A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1302475A CH587116A5 (en) 1975-10-07 1975-10-07

Publications (1)

Publication Number Publication Date
ES444475A1 true ES444475A1 (en) 1977-10-01

Family

ID=4388619

Family Applications (1)

Application Number Title Priority Date Filing Date
ES444475A Expired ES444475A1 (en) 1975-10-07 1976-01-20 Plastic material plasticizer screw

Country Status (7)

Country Link
JP (1) JPS5245663A (en)
CH (1) CH587116A5 (en)
DE (1) DE2604631A1 (en)
ES (1) ES444475A1 (en)
FR (1) FR2327050A1 (en)
IT (1) IT1052686B (en)
NL (1) NL7600222A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4227816A (en) * 1978-08-21 1980-10-14 Usm Corporation Rotary processor
EP1308262A1 (en) * 2001-10-31 2003-05-07 Krauss-Maffei Kunststofftechnik GmbH Extruder screw

Also Published As

Publication number Publication date
FR2327050B3 (en) 1978-10-13
FR2327050A1 (en) 1977-05-06
JPS5245663A (en) 1977-04-11
CH587116A5 (en) 1977-04-29
IT1052686B (en) 1981-07-20
NL7600222A (en) 1977-04-13
DE2604631A1 (en) 1977-04-21

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