FR2318735A1 - Thin expanded core panel - is produced by placing cladding in mould and covering internally with expansible material by injection - Google Patents

Thin expanded core panel - is produced by placing cladding in mould and covering internally with expansible material by injection

Info

Publication number
FR2318735A1
FR2318735A1 FR7523190A FR7523190A FR2318735A1 FR 2318735 A1 FR2318735 A1 FR 2318735A1 FR 7523190 A FR7523190 A FR 7523190A FR 7523190 A FR7523190 A FR 7523190A FR 2318735 A1 FR2318735 A1 FR 2318735A1
Authority
FR
France
Prior art keywords
injection
mould
cladding
core panel
expansible material
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
FR7523190A
Other languages
French (fr)
Other versions
FR2318735B1 (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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7523190A priority Critical patent/FR2318735A1/en
Publication of FR2318735A1 publication Critical patent/FR2318735A1/en
Application granted granted Critical
Publication of FR2318735B1 publication Critical patent/FR2318735B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
    • B32B5/18—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material
    • B32B5/20—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by features of a layer of foamed material foamed in situ
    • 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
    • B29C44/38—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length
    • B29C44/385—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length using manifolds or channels directing the flow in the mould
    • B29C44/386—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length using manifolds or channels directing the flow in the mould using a movable, elongate nozzle, e.g. to reach deep into the mould
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/16—Fillers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2607/00—Walls, panels

Landscapes

  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)

Abstract

The expanded-core panel is manufactured by placing the cladding in position in a mould, after which its internal faces are evenly covered with a mixture of expansible material and foaming agent. During injection of the mixture the cladding can be held in the vertical position by profiled sections mounted on the sides and lower edges. The injection vessel is then indexed in the intervening space near the bottom and then indexed upwards and at the same time moved from side to side. A fourth profiled section is mounted at the top of the mould after injection is finished, but before complete expansion has taken place.
FR7523190A 1975-07-24 1975-07-24 Thin expanded core panel - is produced by placing cladding in mould and covering internally with expansible material by injection Granted FR2318735A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7523190A FR2318735A1 (en) 1975-07-24 1975-07-24 Thin expanded core panel - is produced by placing cladding in mould and covering internally with expansible material by injection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7523190A FR2318735A1 (en) 1975-07-24 1975-07-24 Thin expanded core panel - is produced by placing cladding in mould and covering internally with expansible material by injection

Publications (2)

Publication Number Publication Date
FR2318735A1 true FR2318735A1 (en) 1977-02-18
FR2318735B1 FR2318735B1 (en) 1979-06-15

Family

ID=9158334

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7523190A Granted FR2318735A1 (en) 1975-07-24 1975-07-24 Thin expanded core panel - is produced by placing cladding in mould and covering internally with expansible material by injection

Country Status (1)

Country Link
FR (1) FR2318735A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987005861A1 (en) * 1986-03-27 1987-10-08 Harry Kihlberg Method and apparatus for the vertical manufacture of so-called sandwich structural elements
EP0949051A2 (en) * 1998-04-08 1999-10-13 Thimm Verpackung GmbH + Co. Injection molding method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2106350A1 (en) * 1970-09-07 1972-05-05 Ici Ltd

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2106350A1 (en) * 1970-09-07 1972-05-05 Ici Ltd

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987005861A1 (en) * 1986-03-27 1987-10-08 Harry Kihlberg Method and apparatus for the vertical manufacture of so-called sandwich structural elements
EP0949051A2 (en) * 1998-04-08 1999-10-13 Thimm Verpackung GmbH + Co. Injection molding method
EP0949051A3 (en) * 1998-04-08 2000-04-05 Thimm Verpackung GmbH + Co. Injection molding method

Also Published As

Publication number Publication date
FR2318735B1 (en) 1979-06-15

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Legal Events

Date Code Title Description
ST Notification of lapse