FR2140295A1 - Reinforced plastic tubes - formed on mandrel with destructable outer layer - Google Patents

Reinforced plastic tubes - formed on mandrel with destructable outer layer

Info

Publication number
FR2140295A1
FR2140295A1 FR7120843A FR7120843A FR2140295A1 FR 2140295 A1 FR2140295 A1 FR 2140295A1 FR 7120843 A FR7120843 A FR 7120843A FR 7120843 A FR7120843 A FR 7120843A FR 2140295 A1 FR2140295 A1 FR 2140295A1
Authority
FR
France
Prior art keywords
mandrel
destructable
outer layer
reinforced plastic
plastic
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
FR7120843A
Other languages
French (fr)
Other versions
FR2140295B1 (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.)
SOVAP
Original Assignee
SOVAP
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 SOVAP filed Critical SOVAP
Priority to FR7120843A priority Critical patent/FR2140295A1/en
Publication of FR2140295A1 publication Critical patent/FR2140295A1/en
Application granted granted Critical
Publication of FR2140295B1 publication Critical patent/FR2140295B1/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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/56—Coatings, e.g. enameled or galvanised; Releasing, lubricating or separating agents
    • B29C33/68—Release sheets
    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/44—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
    • B29C33/448—Moulds or cores; Details thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles destructible
    • 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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/80—Component parts, details or accessories; Auxiliary operations
    • B29C53/82—Cores or mandrels
    • B29C53/821—Mandrels especially adapted for winding and joining
    • 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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/80—Component parts, details or accessories; Auxiliary operations
    • B29C53/82—Cores or mandrels
    • B29C53/821—Mandrels especially adapted for winding and joining
    • B29C53/824—Mandrels especially adapted for winding and joining collapsible, e.g. elastic or inflatable; with removable parts, e.g. for regular shaped, straight tubular articles

Abstract

In a process for forming hollow or tubular sections, esp. of reinforced plastics by filaments winding, a layer of stretchable or destructible material is applied to the mandrel opt. by adhesive bonding and a film of release material is then applied to the outer surface, followed by the plastic filament to form the tube. The tube is finally extracted by stretching or destroying the inner layer. By the process lengths of up to 10m can be moulded without using a tapered mandrel. The inner layer is pref. of expanded plastic and may be removed by plastic drawing, or by dissolution in a solvent, or by fusion, or it may be of expanded polystyrene. The release film may be of polyethylene terephthalate.
FR7120843A 1971-06-09 1971-06-09 Reinforced plastic tubes - formed on mandrel with destructable outer layer Granted FR2140295A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7120843A FR2140295A1 (en) 1971-06-09 1971-06-09 Reinforced plastic tubes - formed on mandrel with destructable outer layer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7120843A FR2140295A1 (en) 1971-06-09 1971-06-09 Reinforced plastic tubes - formed on mandrel with destructable outer layer

Publications (2)

Publication Number Publication Date
FR2140295A1 true FR2140295A1 (en) 1973-01-19
FR2140295B1 FR2140295B1 (en) 1977-08-05

Family

ID=9078334

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7120843A Granted FR2140295A1 (en) 1971-06-09 1971-06-09 Reinforced plastic tubes - formed on mandrel with destructable outer layer

Country Status (1)

Country Link
FR (1) FR2140295A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2427188A1 (en) * 1978-05-31 1979-12-28 Nitto Electric Ind Co PROCESS FOR PRODUCING A MOLDED PLASTIC ARTICLE CONTAINING A HOLLOW PORTION OF COMPLICATED SHAPE
FR2531904A1 (en) * 1982-08-13 1984-02-24 Atomic Energy Authority Uk METHOD AND CHUCK FOR MANUFACTURING OBJECTS OF ARMORED PLASTIC MATERIAL, AND OBJECTS OBTAINED BY THEIR IMPLEMENTATION
GB2518637A (en) * 2013-09-26 2015-04-01 Dunlop Oil & Marine Ltd A method of hose construction

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2427188A1 (en) * 1978-05-31 1979-12-28 Nitto Electric Ind Co PROCESS FOR PRODUCING A MOLDED PLASTIC ARTICLE CONTAINING A HOLLOW PORTION OF COMPLICATED SHAPE
FR2531904A1 (en) * 1982-08-13 1984-02-24 Atomic Energy Authority Uk METHOD AND CHUCK FOR MANUFACTURING OBJECTS OF ARMORED PLASTIC MATERIAL, AND OBJECTS OBTAINED BY THEIR IMPLEMENTATION
GB2518637A (en) * 2013-09-26 2015-04-01 Dunlop Oil & Marine Ltd A method of hose construction
US10137652B2 (en) 2013-09-26 2018-11-27 Dunlop Oil & Marine Limited Method of hose construction
GB2518637B (en) * 2013-09-26 2020-07-15 Dunlop Oil & Marine Ltd A method of hose construction

Also Published As

Publication number Publication date
FR2140295B1 (en) 1977-08-05

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Legal Events

Date Code Title Description
ST Notification of lapse