IT975273B - Estrusore per materiali termopla stici - Google Patents

Estrusore per materiali termopla stici

Info

Publication number
IT975273B
IT975273B IT70259/72A IT7025972A IT975273B IT 975273 B IT975273 B IT 975273B IT 70259/72 A IT70259/72 A IT 70259/72A IT 7025972 A IT7025972 A IT 7025972A IT 975273 B IT975273 B IT 975273B
Authority
IT
Italy
Prior art keywords
extruder
thermoplastic materials
thermoplastic
materials
Prior art date
Application number
IT70259/72A
Other languages
English (en)
Original Assignee
Shell Int Research
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 Shell Int Research filed Critical Shell Int Research
Application granted granted Critical
Publication of IT975273B publication Critical patent/IT975273B/it

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
    • B29C48/615—Threads having varying helix angles
    • 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)
IT70259/72A 1971-10-19 1972-10-17 Estrusore per materiali termopla stici IT975273B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4852871A GB1364560A (en) 1971-10-19 1971-10-19 Extruder

Publications (1)

Publication Number Publication Date
IT975273B true IT975273B (it) 1974-07-20

Family

ID=10448943

Family Applications (1)

Application Number Title Priority Date Filing Date
IT70259/72A IT975273B (it) 1971-10-19 1972-10-17 Estrusore per materiali termopla stici

Country Status (9)

Country Link
JP (1) JPS4849848A (it)
AU (1) AU4784772A (it)
BE (1) BE789885A (it)
BR (1) BR7207258D0 (it)
DE (1) DE2250851A1 (it)
FR (1) FR2156743B1 (it)
GB (1) GB1364560A (it)
IT (1) IT975273B (it)
NL (1) NL7214006A (it)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7724432U1 (de) * 1977-08-05 1977-11-10 Bucher-Guyer Ag Maschinenfabrik, Niederweningen, Zuerich (Schweiz) Plastifiziermaschine zur verarbeitung bandfoermigen rohmaterials
DE4011248A1 (de) * 1990-04-06 1991-10-10 Poettinger Alois Landmasch Schneckenpresse

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1030011B (de) * 1953-08-29 1958-05-14 Dr Zareh Lorenian Dichtung fuer den Ringspalt um einen aus der Bohrung einer Schnecke heraustretenden zylindrischen Dorn bei Schneckenpressen
DE1268823B (de) * 1959-06-11 1968-05-22 Dr Zareh Lorenian Schneckenpresse zur Verarbeitung von thermoplastischen und/oder thermisch haertbarenKunststoffen
DE1167009B (de) * 1961-04-15 1964-04-02 Basf Ag Schneckenpresse zum schonenden Aufbereiten von Kunststoff-Rohstoffen

Also Published As

Publication number Publication date
JPS4849848A (it) 1973-07-13
FR2156743A1 (it) 1973-06-01
BE789885A (nl) 1973-04-10
BR7207258D0 (pt) 1973-09-13
NL7214006A (it) 1973-04-25
AU4784772A (en) 1974-04-26
FR2156743B1 (it) 1975-03-28
DE2250851A1 (de) 1973-04-26
GB1364560A (en) 1974-08-21

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