IT1003796B - IMPROVEMENT OF PROCEDURE AND INJECTION MOLDING MACHINES - Google Patents

IMPROVEMENT OF PROCEDURE AND INJECTION MOLDING MACHINES

Info

Publication number
IT1003796B
IT1003796B IT4933174A IT4933174A IT1003796B IT 1003796 B IT1003796 B IT 1003796B IT 4933174 A IT4933174 A IT 4933174A IT 4933174 A IT4933174 A IT 4933174A IT 1003796 B IT1003796 B IT 1003796B
Authority
IT
Italy
Prior art keywords
improvement
procedure
injection molding
molding machines
machines
Prior art date
Application number
IT4933174A
Other languages
Italian (it)
Original Assignee
Rhone Progil
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 Rhone Progil filed Critical Rhone Progil
Application granted granted Critical
Publication of IT1003796B publication Critical patent/IT1003796B/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
    • 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
    • B29C45/1645—Injecting skin and core materials from the same injection cylinder, e.g. mono-sandwich moulding
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
IT4933174A 1973-03-14 1974-03-15 IMPROVEMENT OF PROCEDURE AND INJECTION MOLDING MACHINES IT1003796B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7309087A FR2221267A1 (en) 1973-03-14 1973-03-14 Thermoplastic products with skin and core - by separately supplying two compositions to single injection block

Publications (1)

Publication Number Publication Date
IT1003796B true IT1003796B (en) 1976-06-10

Family

ID=9116282

Family Applications (1)

Application Number Title Priority Date Filing Date
IT4933174A IT1003796B (en) 1973-03-14 1974-03-15 IMPROVEMENT OF PROCEDURE AND INJECTION MOLDING MACHINES

Country Status (7)

Country Link
JP (1) JPS5046768A (en)
BE (1) BE812205A (en)
DE (1) DE2411808A1 (en)
FR (1) FR2221267A1 (en)
IT (1) IT1003796B (en)
LU (1) LU69623A1 (en)
NL (1) NL7403291A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2372016A1 (en) * 1976-11-29 1978-06-23 Ex Cell O Corp Prodn. of injection foam mouldings - using single moulding machine and extruder and introducing blowing agent into the extruder
FR2486864A1 (en) * 1980-07-21 1982-01-22 Pont A Mousson PROCESS FOR INJECTION MOLDING OF PLASTIC COATED PARTS AND DEVICE FOR IMPLEMENTING THE SAME
NL8601883A (en) * 1986-07-21 1988-02-16 Stamicarbon METHOD AND APPARATUS FOR MANUFACTURING AN ARTICLE OF MULTIPLE LAYERS OF DIFFERENT MATERIALS
FR2622501B1 (en) * 1987-10-29 1990-01-05 Cibie Projecteurs INJECTION MOLDING METHOD FOR THERMOPLASTIC MATERIAL, MOLDING COMPOSITION FOR PRODUCING AN OBJECT WITH MULTILAYER STRUCTURE AND OBJECT THUS PRODUCED, IN PARTICULAR REFLECTOR BODY
DE3932416A1 (en) * 1989-09-28 1991-04-11 Kloeckner Ferromatik Desma METHOD FOR INJECTION MOLDING MULTI-COMPONENT PLASTIC BODIES AND DEVICE FOR CARRYING OUT THE METHOD
CN110171093B (en) * 2019-06-20 2021-04-16 滁州益佳模具设备制造有限公司 Foaming injection mold for production of uniform feeding mixed injection

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1156217A (en) * 1967-05-03 1969-06-25 Ici Ltd Process for the Production of Cellular Articles

Also Published As

Publication number Publication date
NL7403291A (en) 1974-09-17
BE812205A (en) 1974-09-12
FR2221267B1 (en) 1976-05-21
LU69623A1 (en) 1974-10-09
JPS5046768A (en) 1975-04-25
FR2221267A1 (en) 1974-10-11
DE2411808A1 (en) 1974-09-26

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