IT972265B - Procedimento per la fabbricazione di pezzi formati fatti di materie plastiche varie prodotti mediante delle macchine per effettuare ge ti col processo ad iniezione - Google Patents

Procedimento per la fabbricazione di pezzi formati fatti di materie plastiche varie prodotti mediante delle macchine per effettuare ge ti col processo ad iniezione

Info

Publication number
IT972265B
IT972265B IT3213572A IT3213572A IT972265B IT 972265 B IT972265 B IT 972265B IT 3213572 A IT3213572 A IT 3213572A IT 3213572 A IT3213572 A IT 3213572A IT 972265 B IT972265 B IT 972265B
Authority
IT
Italy
Prior art keywords
machines
procedure
manufacturing
carry out
plastic materials
Prior art date
Application number
IT3213572A
Other languages
English (en)
Inventor
W Hunter
Original Assignee
Demag Kunstofftechnik Gmbh
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 Demag Kunstofftechnik Gmbh filed Critical Demag Kunstofftechnik Gmbh
Application granted granted Critical
Publication of IT972265B publication Critical patent/IT972265B/it

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
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
IT3213572A 1971-11-29 1972-11-28 Procedimento per la fabbricazione di pezzi formati fatti di materie plastiche varie prodotti mediante delle macchine per effettuare ge ti col processo ad iniezione IT972265B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712159089 DE2159089A1 (de) 1971-11-29 1971-11-29 Verfahren zur herstellung von formteilen aus mehreren kunststoffen auf spritzgiessmaschinen

Publications (1)

Publication Number Publication Date
IT972265B true IT972265B (it) 1974-05-20

Family

ID=5826453

Family Applications (1)

Application Number Title Priority Date Filing Date
IT3213572A IT972265B (it) 1971-11-29 1972-11-28 Procedimento per la fabbricazione di pezzi formati fatti di materie plastiche varie prodotti mediante delle macchine per effettuare ge ti col processo ad iniezione

Country Status (9)

Country Link
JP (1) JPS4864143A (it)
AT (1) AT325843B (it)
BR (1) BR7208215D0 (it)
CH (1) CH538929A (it)
DE (1) DE2159089A1 (it)
FR (1) FR2162014B1 (it)
GB (1) GB1418034A (it)
IT (1) IT972265B (it)
NL (1) NL7216169A (it)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3735099A1 (de) * 1987-10-16 1989-04-27 Battenfeld Gmbh Verfahren und vorrichtung zur herstellung von mehrschicht-formteilen

Also Published As

Publication number Publication date
CH538929A (de) 1973-07-15
FR2162014A1 (it) 1973-07-13
GB1418034A (en) 1975-12-17
BR7208215D0 (pt) 1973-08-30
DE2159089A1 (de) 1973-05-30
AT325843B (de) 1975-11-10
NL7216169A (it) 1973-06-01
FR2162014B1 (it) 1975-05-30
ATA965472A (de) 1975-01-15
JPS4864143A (it) 1973-09-05

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