IT1221821B - Dispositivo per condizionare masse termoplastiche fuse nell estrusione di schiume - Google Patents

Dispositivo per condizionare masse termoplastiche fuse nell estrusione di schiume

Info

Publication number
IT1221821B
IT1221821B IT67900/87A IT6790087A IT1221821B IT 1221821 B IT1221821 B IT 1221821B IT 67900/87 A IT67900/87 A IT 67900/87A IT 6790087 A IT6790087 A IT 6790087A IT 1221821 B IT1221821 B IT 1221821B
Authority
IT
Italy
Prior art keywords
melted
foam extrusion
thermoplastic masses
conditioning
conditioning thermoplastic
Prior art date
Application number
IT67900/87A
Other languages
English (en)
Italian (it)
Other versions
IT8767900A0 (it
Inventor
Christian Danz Karl
Deininger Klaus
Original Assignee
Bauakademie Ddr
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 Bauakademie Ddr filed Critical Bauakademie Ddr
Publication of IT8767900A0 publication Critical patent/IT8767900A0/it
Application granted granted Critical
Publication of IT1221821B publication Critical patent/IT1221821B/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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/3442—Mixing, kneading or conveying the foamable material
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/36—Feeding the material to be shaped
    • B29C44/46—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length
    • B29C44/50—Feeding the material to be shaped into an open space or onto moving surfaces, i.e. to make articles of indefinite length using pressure difference, e.g. by extrusion or by spraying
    • 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
    • B29C48/695—Flow dividers, e.g. breaker plates
    • B29C48/70—Flow dividers, e.g. breaker plates comprising means for dividing, distributing and recombining melt flows
    • 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
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/86—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the nozzle zone
    • B29C48/87—Cooling
    • 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)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
IT67900/87A 1986-10-29 1987-10-27 Dispositivo per condizionare masse termoplastiche fuse nell estrusione di schiume IT1221821B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD86295680A DD261271A3 (de) 1986-10-29 1986-10-29 Vorrichtung zum konditionieren von thermoplastschmelzen beim extrusionsschaeumen

Publications (2)

Publication Number Publication Date
IT8767900A0 IT8767900A0 (it) 1987-10-27
IT1221821B true IT1221821B (it) 1990-07-12

Family

ID=5583392

Family Applications (2)

Application Number Title Priority Date Filing Date
IT67900/87A IT1221821B (it) 1986-10-29 1987-10-27 Dispositivo per condizionare masse termoplastiche fuse nell estrusione di schiume
IT8753765U IT8753765V0 (it) 1986-10-29 1987-10-27 Dispositivo per condizionare masse termoplastiche fuse nell estrusione di schiume

Family Applications After (1)

Application Number Title Priority Date Filing Date
IT8753765U IT8753765V0 (it) 1986-10-29 1987-10-27 Dispositivo per condizionare masse termoplastiche fuse nell estrusione di schiume

Country Status (3)

Country Link
DD (1) DD261271A3 (enrdf_load_stackoverflow)
DE (1) DE3732731A1 (enrdf_load_stackoverflow)
IT (2) IT1221821B (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4445149B4 (de) * 1994-12-17 2004-10-07 Rieter Automatik Gmbh Meßkopf für Extruder

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3751377A (en) * 1971-08-19 1973-08-07 Dow Chemical Co Method for the preparation of plastic foam
IT1109660B (it) * 1978-02-23 1985-12-23 Lavorazione Mat Plast Perfezionamento all estrusione di schiume sintetiche
US4424287A (en) * 1980-06-10 1984-01-03 Mobil Oil Corporation Polymer foam process
DD288187A5 (de) * 1989-06-26 1991-03-21 Veb Gisag,De Vorrichtung zur mischgutverteilung

Also Published As

Publication number Publication date
IT8753765V0 (it) 1987-10-27
IT8767900A0 (it) 1987-10-27
DE3732731C2 (enrdf_load_stackoverflow) 1989-12-07
DD261271A3 (de) 1988-10-26
DE3732731A1 (de) 1988-05-05

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