FR2213847A1 - Extrusion die for multi-channelled profiles - with pneumatic jets for balancing partition wall stresses - Google Patents

Extrusion die for multi-channelled profiles - with pneumatic jets for balancing partition wall stresses

Info

Publication number
FR2213847A1
FR2213847A1 FR7300939A FR7300939A FR2213847A1 FR 2213847 A1 FR2213847 A1 FR 2213847A1 FR 7300939 A FR7300939 A FR 7300939A FR 7300939 A FR7300939 A FR 7300939A FR 2213847 A1 FR2213847 A1 FR 2213847A1
Authority
FR
France
Prior art keywords
extrusion die
die
partition wall
extrudate
profiles
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.)
Granted
Application number
FR7300939A
Other languages
French (fr)
Other versions
FR2213847B1 (en
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.)
KOZIOL JEAN
Original Assignee
KOZIOL JEAN
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 KOZIOL JEAN filed Critical KOZIOL JEAN
Priority to FR7300939A priority Critical patent/FR2213847A1/en
Publication of FR2213847A1 publication Critical patent/FR2213847A1/en
Application granted granted Critical
Publication of FR2213847B1 publication Critical patent/FR2213847B1/fr
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
    • 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
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/11—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels comprising two or more partially or fully enclosed cavities, e.g. honeycomb-shaped
    • 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
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • 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
    • B29C48/03—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/60—Multitubular or multicompartmented articles, e.g. honeycomb

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fats And Perfumes (AREA)

Abstract

Extrusion die for making profiles or board with several internal longitudinal channels, has the die mandrel also drilled, to provide an air jet for each profile channel to maintain a shape stabilising internal pressure until the extrudate firms up. Pref. the incoming air is preheated (to 60-80 degrees C) during its passage into the die or by an ancillary heat exchanger. The jets provide internal pressurisation which is readily adjusted to counteract contraction stresses induced by variable haul off conditions, (in preference to quench treatments which may render the extrudate too cold and stiff to accept subsequent ancillary shaping operations, e.g. corrugation).
FR7300939A 1973-01-11 1973-01-11 Extrusion die for multi-channelled profiles - with pneumatic jets for balancing partition wall stresses Granted FR2213847A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7300939A FR2213847A1 (en) 1973-01-11 1973-01-11 Extrusion die for multi-channelled profiles - with pneumatic jets for balancing partition wall stresses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7300939A FR2213847A1 (en) 1973-01-11 1973-01-11 Extrusion die for multi-channelled profiles - with pneumatic jets for balancing partition wall stresses

Publications (2)

Publication Number Publication Date
FR2213847A1 true FR2213847A1 (en) 1974-08-09
FR2213847B1 FR2213847B1 (en) 1976-11-05

Family

ID=9113156

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7300939A Granted FR2213847A1 (en) 1973-01-11 1973-01-11 Extrusion die for multi-channelled profiles - with pneumatic jets for balancing partition wall stresses

Country Status (1)

Country Link
FR (1) FR2213847A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4371326A (en) * 1979-01-26 1983-02-01 Mcalister Roy E Apparatus for making plastic solar panel structure
EP1316407A1 (en) * 2001-11-30 2003-06-04 Rodeca GmbH Wall- or roofpanel and method and extrusion die for manufacturing the same

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3274315A (en) * 1963-02-25 1966-09-20 Tokan Kogyo Co Ltd Process for unitized construction of synthetic resin board or cylinder

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3274315A (en) * 1963-02-25 1966-09-20 Tokan Kogyo Co Ltd Process for unitized construction of synthetic resin board or cylinder

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4371326A (en) * 1979-01-26 1983-02-01 Mcalister Roy E Apparatus for making plastic solar panel structure
EP1316407A1 (en) * 2001-11-30 2003-06-04 Rodeca GmbH Wall- or roofpanel and method and extrusion die for manufacturing the same

Also Published As

Publication number Publication date
FR2213847B1 (en) 1976-11-05

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Legal Events

Date Code Title Description
ST Notification of lapse