IT996356B - Metodo e dispositivo per impedire il riflusso di materiale nell inter stizio fra i cilindri di una calan dra - Google Patents

Metodo e dispositivo per impedire il riflusso di materiale nell inter stizio fra i cilindri di una calan dra

Info

Publication number
IT996356B
IT996356B IT53446/73A IT5344673A IT996356B IT 996356 B IT996356 B IT 996356B IT 53446/73 A IT53446/73 A IT 53446/73A IT 5344673 A IT5344673 A IT 5344673A IT 996356 B IT996356 B IT 996356B
Authority
IT
Italy
Prior art keywords
stice
calan
dra
reflux
cylinders
Prior art date
Application number
IT53446/73A
Other languages
English (en)
Inventor
G Sander
Original Assignee
Berstorff Gmbh Masch Hermann
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
Priority claimed from DE19722254317 external-priority patent/DE2254317C3/de
Application filed by Berstorff Gmbh Masch Hermann filed Critical Berstorff Gmbh Masch Hermann
Application granted granted Critical
Publication of IT996356B publication Critical patent/IT996356B/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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/22—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length
    • B29C43/24—Calendering
    • 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
    • B29C48/07—Flat, e.g. panels
    • 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
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/35—Extrusion nozzles or dies with rollers
    • 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
    • B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
    • 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
    • B29C48/13—Articles with a cross-section varying in the longitudinal direction, e.g. corrugated pipes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
IT53446/73A 1972-11-06 1973-10-31 Metodo e dispositivo per impedire il riflusso di materiale nell inter stizio fra i cilindri di una calan dra IT996356B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722254317 DE2254317C3 (de) 1972-11-06 Breitschlitzdüse für eine Extruder-Walzen-Kombination

Publications (1)

Publication Number Publication Date
IT996356B true IT996356B (it) 1975-12-10

Family

ID=5860982

Family Applications (2)

Application Number Title Priority Date Filing Date
IT53446/73A IT996356B (it) 1972-11-06 1973-10-31 Metodo e dispositivo per impedire il riflusso di materiale nell inter stizio fra i cilindri di una calan dra
IT53452/73A IT996360B (it) 1972-11-06 1973-10-31 Metodo e dispositivo per comandare il moto di un cordone termoplastico o simile nell interstizio di una calandra

Family Applications After (1)

Application Number Title Priority Date Filing Date
IT53452/73A IT996360B (it) 1972-11-06 1973-10-31 Metodo e dispositivo per comandare il moto di un cordone termoplastico o simile nell interstizio di una calandra

Country Status (3)

Country Link
FR (1) FR2205398B3 (it)
GB (1) GB1397217A (it)
IT (2) IT996356B (it)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3737588C3 (de) * 1987-11-05 1993-12-23 Corma Inc Verfahren zum Herstellen eines innen glatten, außen gerippten Rohres aus extrudierbarem Kunststoff sowie Vorrichtung zur Durchführung des Verfahrens

Also Published As

Publication number Publication date
GB1397217A (en) 1975-06-11
FR2205398A1 (it) 1974-05-31
FR2205398B3 (it) 1976-09-17
IT996360B (it) 1975-12-10
DE2254317A1 (de) 1974-05-22
DE2254317B2 (de) 1975-07-10

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