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ES8801774A1 - Procedimiento para la produccion de articulos moldeados de material termoplastico del tipo emparedado. - Google Patents

Procedimiento para la produccion de articulos moldeados de material termoplastico del tipo emparedado.

Info

Publication number
ES8801774A1
ES8801774A1 ES551938A ES551938A ES8801774A1 ES 8801774 A1 ES8801774 A1 ES 8801774A1 ES 551938 A ES551938 A ES 551938A ES 551938 A ES551938 A ES 551938A ES 8801774 A1 ES8801774 A1 ES 8801774A1
Authority
ES
Spain
Prior art keywords
mould
producing sandwich
forming
sandwich moulding
mouldings
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.)
Expired
Application number
ES551938A
Other languages
English (en)
Other versions
ES551938A0 (es
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.)
BP Chemicals Ltd
Original Assignee
BP Chemicals Ltd
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 BP Chemicals Ltd filed Critical BP Chemicals Ltd
Publication of ES551938A0 publication Critical patent/ES551938A0/es
Publication of ES8801774A1 publication Critical patent/ES8801774A1/es
Expired 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
    • B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B29C37/005—Compensating volume or shape change during moulding, in general
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1642—Making multilayered or multicoloured articles having a "sandwich" structure
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/57—Exerting after-pressure on 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
    • B29K2105/16—Fillers

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)

Abstract

MODIFICACIONES EN UN PROCEDIMIENTO PARA PRODUCIR ARTICULOS MOLDEADOS DE MATERIAL TERMOPLASTICO. CONSISTENTES EN RELLENAR EL MOLDE DE LOS MATERIALES QUE SE SUMINISTRAN MEDIANTE MAQUINAS DE MOLDEO POR INYECCION SEPARADAS, INYECTANDOSE AL INTERIOR DEL MOLDE A TRAVES DE UNA BOQUILLA COMUN; Y APLICAR UNA PRESION OSCILANTE DE RELLENO AL MATERIAL DEL MOLDE DURANTE EL ENFRIAMIENTO INICIAL DE LA FUSION TERMOPLASTICA Y, SIMULTANEAMENTE, INTRODUCIR DENTRO DEL MOLDE MAS MATERIAL TERMOPLASTICO; DONDE LA PRESION OSCILANTE DE RELLENO, MEDIDA EN LA SECCION DE ENTRADA DEL MOLDE, SE DERIVA DE LA CICLACION DE LA PRESION EN UNA GAMA DE DIFERENCIA DE PRESION DE 5 A 150 MPA; Y DONDE LA FRECUENCIA DE OSCILACION DE LA PRESION DE RELLENO ES DE 0,4 A 2 HZ. TIENE APLICACION EN LA INDUSTRIA DEL AUTOMOVIL.
ES551938A 1985-02-13 1986-02-13 Procedimiento para la produccion de articulos moldeados de material termoplastico del tipo emparedado. Expired ES8801774A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB858503695A GB8503695D0 (en) 1985-02-13 1985-02-13 Sandwich mouldings

Publications (2)

Publication Number Publication Date
ES551938A0 ES551938A0 (es) 1987-07-01
ES8801774A1 true ES8801774A1 (es) 1987-07-01

Family

ID=10574427

Family Applications (1)

Application Number Title Priority Date Filing Date
ES551938A Expired ES8801774A1 (es) 1985-02-13 1986-02-13 Procedimiento para la produccion de articulos moldeados de material termoplastico del tipo emparedado.

Country Status (3)

Country Link
EP (1) EP0191623A3 (es)
ES (1) ES8801774A1 (es)
GB (1) GB8503695D0 (es)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2300587B (en) * 1992-09-24 1997-04-30 Fuller H B Co Coated Substrates
GB2318757B (en) * 1996-11-01 2000-07-12 Univ Brunel Moulding process and article produced by the process
WO1999010157A1 (de) * 1997-08-21 1999-03-04 Structoform Spritzgiessen Anisotroper Strukturkomponenten Gmbh Verfahren und vorrichtung zum spritzgiessen von spritzgussteilen aus plastifizierbarem material
JP4201481B2 (ja) * 2000-12-25 2008-12-24 株式会社神戸製鋼所 成形品およびその射出成形方法、その射出成形装置
DE20106350U1 (de) * 2001-04-11 2002-08-14 Uvex Arbeitsschutz GmbH, 90766 Fürth Schutzschuh, Sicherheitsschuh bzw. -stiefel
WO2019079480A1 (en) 2017-10-17 2019-04-25 Magic Leap, Inc. METHODS AND APPARATUS FOR CASTING POLYMER PRODUCTS
GB2571722B (en) 2018-03-05 2021-10-06 Roto Hybrid Holdings Ltd Method of manufacturing a printing cylinder using injection moulding
EP3867677A4 (en) * 2018-10-16 2021-12-22 Magic Leap, Inc. METHODS AND APPARATUS FOR CASTING POLYMERIC PRODUCTS

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2996764A (en) * 1956-12-03 1961-08-22 Dow Chemical Co Method of molding plastic articles from two or more plastic materials
GB1339443A (en) * 1970-11-30 1973-12-05 Ici Ltd Production of laminar articles
BE792162A (fr) * 1971-11-30 1973-05-30 Bp Chem Int Ltd Procede de moulage
DE2524942A1 (de) * 1975-06-05 1976-12-09 Braas & Co Gmbh Kunststoff-spritzgussmaschine mit oszillierendem stempel
DE2614213A1 (de) * 1976-04-02 1977-10-20 Ver Foerderung Inst Kunststoff Verfahren und vorrichtung zum spritzgiessen von dickwandigen grossvolumigen kunststoff-formteilen in formwerkzeugen
FR2432137A1 (fr) * 1978-07-25 1980-02-22 Seima Procede pour la realisation de reflecteur optique et notamment pour projecteur d'automobile et machine pour sa mise en oeuvre
DE3305931A1 (de) * 1983-02-21 1984-08-23 Battenfeld Maschfab Vorrichtung zum diskontinuierlichen herstellen von mehrschicht-formkoerpern aus kunststoff

Also Published As

Publication number Publication date
ES551938A0 (es) 1987-07-01
EP0191623A2 (en) 1986-08-20
GB8503695D0 (en) 1985-03-13
EP0191623A3 (en) 1987-09-02

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