EP0221964A1 - Procede de moulage de produits polymeres avec renforcement a l'aide de fibres ou de filaments - Google Patents

Procede de moulage de produits polymeres avec renforcement a l'aide de fibres ou de filaments

Info

Publication number
EP0221964A1
EP0221964A1 EP19860903173 EP86903173A EP0221964A1 EP 0221964 A1 EP0221964 A1 EP 0221964A1 EP 19860903173 EP19860903173 EP 19860903173 EP 86903173 A EP86903173 A EP 86903173A EP 0221964 A1 EP0221964 A1 EP 0221964A1
Authority
EP
European Patent Office
Prior art keywords
fact
ized
character
accordance
strengthening
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.)
Withdrawn
Application number
EP19860903173
Other languages
German (de)
English (en)
Inventor
Luiz Carlos Oliveira Da Cunha Lima
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
Publication of EP0221964A1 publication Critical patent/EP0221964A1/fr
Withdrawn legal-status Critical Current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
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/26—Component parts, details or accessories; Auxiliary operations
    • B29C51/28—Component parts, details or accessories; Auxiliary operations for applying pressure through the wall of an inflated bag or diaphragm
    • 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
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/14—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor using multilayered preforms or sheets
    • B29C51/145—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor using multilayered preforms or sheets having at least one layer of textile or fibrous material combined with at least one plastics layer
    • 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
    • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B29C43/10—Isostatic pressing, i.e. using non-rigid pressure-exerting members against rigid parts or dies
    • B29C43/12—Isostatic pressing, i.e. using non-rigid pressure-exerting members against rigid parts or dies using bags surrounding the moulding material or using membranes contacting the moulding material
    • 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
    • B29K2105/08—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of continuous length, e.g. cords, rovings, mats, fabrics, strands or yarns

Definitions

  • the present invention is relative to a process for obtaining polymeric products, strengthened, wholly or partly, with fibres or filaments, either natural, artificial or syn ⁇ thetic, in conventional moulds, utilizing as a moulding ele ⁇ ment, a vacuum and/or a fluid under pressure.
  • vullcanization chambers are used in the moulding or mending of tyres.
  • the vulcanizing chamber used with water, steam or air pressure, moulds the body of the tyre or of the mend on the mould.
  • the vulcanizing is processed for a given time, the pressure is then relaxed and the moulded or mended tyre is withdrawn from the vulcanizing chamber.
  • the mould is constituted of two principal parts, male and female, made of the same material, which is generally metal.
  • Another method is to place the reinforced polymeric product directly in the mould, without prior modelling or deformation.
  • the present invention consists of • a system, in which a flat plastic membrane is used and on this is placed
  • the polymeric product wholly or partly strengthened with fibres or filaments.
  • the mould is hermetically sealed a and pressure is made on the elastic membrane, with a fluid which compresses the strengthened polymeric product, which then takes on the form of the .mould.
  • the strengthened polymeric product is free of tensions and is pressured by the elastic mem ⁇ b ane into taking the form of the mould, its lengthening is spread equally along the whole body, proportionately to the form of the mould. It is thus easy to calculate
  • the process consists of a mould (Fig.A), composed of a base 1, a lid 2, the strengthened polymeric product 3,

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

Le procédé ci-décrit consiste essentiellement à mouler des produits polymères, avec renforcement total ou partiel, en appliquant une pression sur les parois du moule au moyen d'une membrane élastique, donnant ainsi au même temps forme au produit polymère et soumettant le renforcement à un allongement défini et résiduel permanent.
EP19860903173 1985-05-21 1986-05-21 Procede de moulage de produits polymeres avec renforcement a l'aide de fibres ou de filaments Withdrawn EP0221964A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BR8502414A BR8502414A (pt) 1985-05-21 1985-05-21 Processo para moldar produtos polimericos com reforco de fibras ou filamentos
BR8502414 1985-05-22

Publications (1)

Publication Number Publication Date
EP0221964A1 true EP0221964A1 (fr) 1987-05-20

Family

ID=4037913

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19860903173 Withdrawn EP0221964A1 (fr) 1985-05-21 1986-05-21 Procede de moulage de produits polymeres avec renforcement a l'aide de fibres ou de filaments

Country Status (3)

Country Link
EP (1) EP0221964A1 (fr)
BR (1) BR8502414A (fr)
WO (1) WO1986007005A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NZ217405A (en) * 1986-08-29 1991-02-26 Kelly Tarlton S Underwater Wor Thermoforming by supporting material until plastic then allowing to form
SE461456B (sv) * 1988-06-23 1990-02-19 Ericsson Telefon Ab L M Formverktyg
US5037599A (en) * 1989-06-26 1991-08-06 Basf Aktiengesellschaft Single diaphragm forming of drapeable thermoplastic impregnated composite materials
GB2241194B (en) * 1990-02-06 1994-07-27 Honda Motor Co Ltd Method for molding fiber-reinforced resin
ES2112744B1 (es) * 1994-12-02 1998-12-01 Porta Miguel Alives Procedimiento y disposicion para modelado de una forma tridimensional en una tela.
FR2915128B1 (fr) * 2007-04-23 2016-08-05 Cie Europeenne D'etude Et De Rech De Dispositifs Pour L'implantation Par Laparoscopie Procede de formage d'une feuille souple en elastomere ou en matiere plastique et dispositif correspondant

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2329425A (en) * 1943-01-29 1943-09-14 Columbian Rope Co Molding apparatus
US3446686A (en) * 1964-07-29 1969-05-27 Gen Tire & Rubber Co Method in laminating reinforced sheet
BE754422A (nl) * 1969-08-13 1971-02-05 Shell Int Research Methode en apparaat voor het vormen van voorwerpen uit een vel
US3744262A (en) * 1971-06-30 1973-07-10 R Bose Method for cooling thermoformed plastic parts
DE2542588C3 (de) * 1975-09-24 1979-01-11 The Upjohn Co., Kalamazoo, Mich. (V.St.A.) Vorrichtung zum Unterdruck- oder Überdruckformen einer Folie
US4230764A (en) * 1979-04-30 1980-10-28 The United States Of America As Represented By The Secretary Of The Army Prestressed article

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8607005A1 *

Also Published As

Publication number Publication date
WO1986007005A1 (fr) 1986-12-04
BR8502414A (pt) 1986-12-30

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 19870223