FR2309328A1 - Double skin tubes of reinforced synthetic material - preformed rib structure forms inner reinforcements embedded in outer layer - Google Patents

Double skin tubes of reinforced synthetic material - preformed rib structure forms inner reinforcements embedded in outer layer

Info

Publication number
FR2309328A1
FR2309328A1 FR7612690A FR7612690A FR2309328A1 FR 2309328 A1 FR2309328 A1 FR 2309328A1 FR 7612690 A FR7612690 A FR 7612690A FR 7612690 A FR7612690 A FR 7612690A FR 2309328 A1 FR2309328 A1 FR 2309328A1
Authority
FR
France
Prior art keywords
synthetic material
outer layer
reinforced synthetic
rib structure
structure forms
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
FR7612690A
Other languages
French (fr)
Other versions
FR2309328B3 (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.)
BECOM SpA
Original Assignee
BECOM SpA
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 IT2287675A external-priority patent/IT1037746B/en
Priority claimed from IT2154676A external-priority patent/IT1058524B/en
Application filed by BECOM SpA filed Critical BECOM SpA
Publication of FR2309328A1 publication Critical patent/FR2309328A1/en
Application granted granted Critical
Publication of FR2309328B3 publication Critical patent/FR2309328B3/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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/56—Winding and joining, e.g. winding spirally
    • 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
    • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
    • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
    • B29C70/28—Shaping operations therefor
    • B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
    • B29C70/32—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core on a rotating mould, former or core

Abstract

Tubes of reinforced synthetic material consisting of bonded coaxial layers, an inner and an outer layer enclosing a zone in which there are solid ribs consolidating the whole laminate, has a first tubular layer built up as normally on a revolving arbor, on which the preformed ribs are fitted. These comprise a solid profile of resin with a reinforcement, in the form of an undulating strip which is spirally wound on to the inner layer at a definite pitch. On these rib windings, endless resin-impregnated threads or bands are wound so as to form a second solid tubular layer, and the finished tube is removed from the arbor.
FR7612690A 1975-04-30 1976-04-29 Double skin tubes of reinforced synthetic material - preformed rib structure forms inner reinforcements embedded in outer layer Granted FR2309328A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT2287675A IT1037746B (en) 1975-04-30 1975-04-30 Double skin tubes of reinforced synthetic material - preformed rib structure forms inner reinforcements embedded in outer layer
IT2154676A IT1058524B (en) 1976-03-24 1976-03-24 Double skin tubes of reinforced synthetic material - preformed rib structure forms inner reinforcements embedded in outer layer

Publications (2)

Publication Number Publication Date
FR2309328A1 true FR2309328A1 (en) 1976-11-26
FR2309328B3 FR2309328B3 (en) 1979-01-19

Family

ID=26327928

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7612690A Granted FR2309328A1 (en) 1975-04-30 1976-04-29 Double skin tubes of reinforced synthetic material - preformed rib structure forms inner reinforcements embedded in outer layer

Country Status (4)

Country Link
AR (1) AR209649A1 (en)
BR (1) BR7602658A (en)
DE (1) DE2619337A1 (en)
FR (1) FR2309328A1 (en)

Also Published As

Publication number Publication date
AR209649A1 (en) 1977-05-13
DE2619337A1 (en) 1976-11-11
FR2309328B3 (en) 1979-01-19
BR7602658A (en) 1976-11-23

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Legal Events

Date Code Title Description
ST Notification of lapse