DE3732731C2 - - Google Patents

Info

Publication number
DE3732731C2
DE3732731C2 DE3732731A DE3732731A DE3732731C2 DE 3732731 C2 DE3732731 C2 DE 3732731C2 DE 3732731 A DE3732731 A DE 3732731A DE 3732731 A DE3732731 A DE 3732731A DE 3732731 C2 DE3732731 C2 DE 3732731C2
Authority
DE
Germany
Prior art keywords
melt
cooling
torpedo
cooling channels
shaped component
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
DE3732731A
Other languages
German (de)
English (en)
Other versions
DE3732731A1 (de
Inventor
Karl-Christian Dr.Rer.Nat. Danz
Klaus Dipl.-Ing. Ddr 5300 Weimar Dd Deininger
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.)
BAUAKADEMIE DER DEUTSCHEN DEMOKRATISCHEN REPUBLIK DDR 1092 BERLIN DD
Original Assignee
BAUAKADEMIE DER DEUTSCHEN DEMOKRATISCHEN REPUBLIK DDR 1092 BERLIN DD
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 DER DEUTSCHEN DEMOKRATISCHEN REPUBLIK DDR 1092 BERLIN DD filed Critical BAUAKADEMIE DER DEUTSCHEN DEMOKRATISCHEN REPUBLIK DDR 1092 BERLIN DD
Publication of DE3732731A1 publication Critical patent/DE3732731A1/de
Application granted granted Critical
Publication of DE3732731C2 publication Critical patent/DE3732731C2/de
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
    • 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)
DE19873732731 1986-10-29 1987-09-29 Vorrichtung zum konditionieren von thermoplastschmelzen beim extrusionsschaeumen Granted DE3732731A1 (de)

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
DE3732731A1 DE3732731A1 (de) 1988-05-05
DE3732731C2 true DE3732731C2 (fr) 1989-12-07

Family

ID=5583392

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19873732731 Granted DE3732731A1 (de) 1986-10-29 1987-09-29 Vorrichtung zum konditionieren von thermoplastschmelzen beim extrusionsschaeumen

Country Status (3)

Country Link
DD (1) DD261271A3 (fr)
DE (1) DE3732731A1 (fr)
IT (2) IT8753765V0 (fr)

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
DD261271A3 (de) 1988-10-26
IT1221821B (it) 1990-07-12
IT8753765V0 (it) 1987-10-27
IT8767900A0 (it) 1987-10-27
DE3732731A1 (de) 1988-05-05

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee