IT946116B - IMPROVEMENTS RELATING TO THE PRODUCTION OF LAMELLAR ARTICLES - Google Patents

IMPROVEMENTS RELATING TO THE PRODUCTION OF LAMELLAR ARTICLES

Info

Publication number
IT946116B
IT946116B IT3178971A IT3178971A IT946116B IT 946116 B IT946116 B IT 946116B IT 3178971 A IT3178971 A IT 3178971A IT 3178971 A IT3178971 A IT 3178971A IT 946116 B IT946116 B IT 946116B
Authority
IT
Italy
Prior art keywords
lamellar
articles
production
improvements relating
relating
Prior art date
Application number
IT3178971A
Other languages
Italian (it)
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 filed Critical
Application granted granted Critical
Publication of IT946116B publication Critical patent/IT946116B/en

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)
IT3178971A 1970-11-30 1971-11-29 IMPROVEMENTS RELATING TO THE PRODUCTION OF LAMELLAR ARTICLES IT946116B (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
IT946116B true IT946116B (en) 1973-05-21

Family

ID=10477300

Family Applications (2)

Application Number Title Priority Date Filing Date
IT3179071A IT961052B (en) 1970-11-30 1971-11-29 IMPROVEMENTS RELATING TO THE PRODUCTION OF LAMELAR ARTICLES
IT3178971A IT946116B (en) 1970-11-30 1971-11-29 IMPROVEMENTS RELATING TO THE PRODUCTION OF LAMELLAR ARTICLES

Family Applications Before (1)

Application Number Title Priority Date Filing Date
IT3179071A IT961052B (en) 1970-11-30 1971-11-29 IMPROVEMENTS RELATING TO THE PRODUCTION OF LAMELAR ARTICLES

Country Status (4)

Country Link
DE (3) DE2159344A1 (en)
FR (2) FR2115488B1 (en)
GB (1) GB1339443A (en)
IT (2) IT961052B (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2257408B1 (en) * 1973-09-25 1978-01-13 Billion Sa
DE2616309C2 (en) * 1976-04-12 1984-08-02 Helmut Prof. Dr. 4020 Mettmann Käufer Process for the manufacture of composite materials
DE3405231A1 (en) * 1983-04-19 1984-10-25 Kork AG Boswil, Boswil MOLDED BODY, METHOD AND DEVICE FOR ITS PRODUCTION AND USE THEREOF
GB8503695D0 (en) * 1985-02-13 1985-03-13 Bp Chem Int Ltd Sandwich mouldings
DE8903322U1 (en) * 1989-03-17 1989-07-20 Gefinex Gesellschaft für innovative Extrusionsprodukte mbH, 33803 Steinhagen Foam board
DE3913109C5 (en) * 1989-04-21 2010-03-18 Ferromatik Milacron Maschinenbau Gmbh Method for injection molding of fluid-filled plastic body and device for carrying out the method
DE19518963C2 (en) * 1995-05-23 1998-04-09 Eldra Kunststofftechnik Gmbh Method and device for injection molding hollow-blown plastic bodies
DE19518964C2 (en) * 1995-05-23 1998-04-09 Eldra Kunststofftechnik Gmbh Method and device for injection molding hollow-blown plastic bodies
FR2763014B1 (en) * 1997-05-07 2000-07-13 Allibert Ind PROCESS AND DEVICE FOR SELECTIVE TWO-MATERIAL INJECTION MOLDING OF A PLASTIC MATERIAL, AND PART MADE THEREWITH
US6767487B2 (en) 2001-07-10 2004-07-27 Cinpres Gas Injection Ltd. Plastic expulsion process
DE10233447A1 (en) * 2002-06-05 2004-01-08 Windsor Kunststofftechnologie Gmbh Coinjections unit for injection molding machines
US6899843B2 (en) 2003-03-25 2005-05-31 Lear Corporation Plastic injection molding with moveable mold members forming speaker grill
US6890477B2 (en) 2003-03-25 2005-05-10 Lear Corporation Plastic injection molded articles with hollow rib members
DE102005026790B4 (en) * 2005-06-10 2016-06-09 Bayerische Motoren Werke Aktiengesellschaft Injection molding process for producing a flat plastic part
DE102012100422B4 (en) 2012-01-19 2024-01-04 Auria Solutions Uk I Ltd. Device and method for producing an injection molded component, in particular a sound insulation component of a motor vehicle
DE102020109197A1 (en) 2020-04-02 2021-10-07 STG Stanztechnik GmbH & Co. KG Channel system for the continuous injection of a plasticized molding compound into a molding tool, injection molding device and a method for controlling and regulating a continuous injection process of such an injection molding device
DE102020005761A1 (en) 2020-09-21 2022-03-24 Koller Beteiligungs Holding GmbH & Co. KG Method and device for creating at least one polymer body and polymer body

Also Published As

Publication number Publication date
DE2159345A1 (en) 1972-05-31
FR2115487A1 (en) 1972-07-07
IT961052B (en) 1973-12-10
FR2115488B1 (en) 1974-07-19
FR2115487B1 (en) 1974-07-19
DE2159344A1 (en) 1972-05-31
DE2159383A1 (en) 1972-06-08
GB1339443A (en) 1973-12-05
FR2115488A1 (en) 1972-07-07

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