DE2159345A1 - Verfahren zur Herstellung von Schichtstoffgegenständen - Google Patents

Verfahren zur Herstellung von Schichtstoffgegenständen

Info

Publication number
DE2159345A1
DE2159345A1 DE19712159345 DE2159345A DE2159345A1 DE 2159345 A1 DE2159345 A1 DE 2159345A1 DE 19712159345 DE19712159345 DE 19712159345 DE 2159345 A DE2159345 A DE 2159345A DE 2159345 A1 DE2159345 A1 DE 2159345A1
Authority
DE
Germany
Prior art keywords
injected
runner
skin
core material
core
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.)
Pending
Application number
DE19712159345
Other languages
German (de)
English (en)
Inventor
Paul Johnson Thorpe Bay Essex Garner (Großbritannien)
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries 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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Publication of DE2159345A1 publication Critical patent/DE2159345A1/de
Pending 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/04—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities
    • B29C44/0492—Devices for feeding the different materials
    • 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
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/04—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities
    • B29C44/0461—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities by having different chemical compositions in different places, e.g. having different concentrations of foaming agent, feeding one composition after the other
    • 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
    • B29C45/0025—Preventing defects on the moulded article, e.g. weld lines, shrinkage marks
    • B29C2045/0032—Preventing defects on the moulded article, e.g. weld lines, shrinkage marks sequential injection from multiple gates, e.g. to avoid weld lines
    • 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
    • B29C2045/1651—Independent injection runners or nozzles
    • 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
    • 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
    • B29K2101/00—Use of unspecified macromolecular compounds as moulding material
    • B29K2101/10—Thermosetting resins

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
DE19712159345 1970-11-30 1971-11-30 Verfahren zur Herstellung von Schichtstoffgegenständen Pending DE2159345A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5669570 1970-11-30

Publications (1)

Publication Number Publication Date
DE2159345A1 true DE2159345A1 (de) 1972-05-31

Family

ID=10477300

Family Applications (3)

Application Number Title Priority Date Filing Date
DE19712159345 Pending DE2159345A1 (de) 1970-11-30 1971-11-30 Verfahren zur Herstellung von Schichtstoffgegenständen
DE19712159344 Pending DE2159344A1 (de) 1970-11-30 1971-11-30 Verfahren zur Herstellung von Schichtstoffgegenständen
DE19712159383 Pending DE2159383A1 (de) 1970-11-30 1971-11-30 Verfahren zur Herstellung von Schichtstoffgegenständen

Family Applications After (2)

Application Number Title Priority Date Filing Date
DE19712159344 Pending DE2159344A1 (de) 1970-11-30 1971-11-30 Verfahren zur Herstellung von Schichtstoffgegenständen
DE19712159383 Pending DE2159383A1 (de) 1970-11-30 1971-11-30 Verfahren zur Herstellung von Schichtstoffgegenständen

Country Status (4)

Country Link
DE (3) DE2159345A1 (enExample)
FR (2) FR2115487B1 (enExample)
GB (1) GB1339443A (enExample)
IT (2) IT961052B (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2445786A1 (de) * 1973-09-25 1975-04-03 Billion Sa Verfahren und vorrichtung zur herstellung von spritzgussteilen

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2616309C2 (de) * 1976-04-12 1984-08-02 Helmut Prof. Dr. 4020 Mettmann Käufer Verfahren zum Herstellen von Verbundwerkstoffen
DE3405231A1 (de) * 1983-04-19 1984-10-25 Kork AG Boswil, Boswil Formkoerper, verfahren und vorrichtung zu seiner herstellung sowie verwendung desselben
GB8503695D0 (en) * 1985-02-13 1985-03-13 Bp Chem Int Ltd Sandwich mouldings
DE8903322U1 (de) * 1989-03-17 1989-07-20 Gefinex Gesellschaft für innovative Extrusionsprodukte mbH, 33803 Steinhagen Schaumstoffplatte
DE3913109C5 (de) * 1989-04-21 2010-03-18 Ferromatik Milacron Maschinenbau Gmbh Verfahren zum Spritzgießen fluidgefüllter Kunststoffkörper und Vorrichtung zur Durchführung des Verfahrens
DE19518964C2 (de) * 1995-05-23 1998-04-09 Eldra Kunststofftechnik Gmbh Verfahren und Vorrichtung zum Spritzgießen hohlgeblasener Kunststoffkörper
DE19518963C2 (de) * 1995-05-23 1998-04-09 Eldra Kunststofftechnik Gmbh Verfahren und Vorrichtung zum Spritzgießen hohlgeblasener Kunststoffkörper
FR2763014B1 (fr) * 1997-05-07 2000-07-13 Allibert Ind Procede et dispositif de moulage par injection bi-matiere selective d'une piece en matieres plastiques, et piece realisee avec ce procede
US6767487B2 (en) 2001-07-10 2004-07-27 Cinpres Gas Injection Ltd. Plastic expulsion process
DE10233447A1 (de) * 2002-06-05 2004-01-08 Windsor Kunststofftechnologie Gmbh Coinjections-Einheit für Spritzgießmaschinen
US6890477B2 (en) 2003-03-25 2005-05-10 Lear Corporation Plastic injection molded articles with hollow rib members
US6899843B2 (en) 2003-03-25 2005-05-31 Lear Corporation Plastic injection molding with moveable mold members forming speaker grill
DE102005026790B4 (de) * 2005-06-10 2016-06-09 Bayerische Motoren Werke Aktiengesellschaft Spritzgussverfahren zur Herstellung eines flächigen Kunststoffteils
DE102012100422B4 (de) 2012-01-19 2024-01-04 Auria Solutions Uk I Ltd. Vorrichtung und Verfahren zur Herstellung eines Spritzgussbauteils, insbesondere eines Schallisolationsbauteils eines Kraftfahrzeuges
DE202020006061U1 (de) 2020-04-02 2024-08-26 STG Stanztechnik GmbH & Co. KG Kanalsystem zum kontinuierlichen Einspritzen einer plastifizierten Formmasse in ein Formgebungswerkzeug sowie Spritzgussvorrichtung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2445786A1 (de) * 1973-09-25 1975-04-03 Billion Sa Verfahren und vorrichtung zur herstellung von spritzgussteilen

Also Published As

Publication number Publication date
FR2115488A1 (enExample) 1972-07-07
FR2115487B1 (enExample) 1974-07-19
IT961052B (it) 1973-12-10
GB1339443A (en) 1973-12-05
FR2115487A1 (enExample) 1972-07-07
DE2159344A1 (de) 1972-05-31
DE2159383A1 (de) 1972-06-08
IT946116B (it) 1973-05-21
FR2115488B1 (enExample) 1974-07-19

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