IT958372B - Apparecchio per la formatura di articoli termoplastici schiumeg gianti - Google Patents

Apparecchio per la formatura di articoli termoplastici schiumeg gianti

Info

Publication number
IT958372B
IT958372B IT50899/72A IT5089972A IT958372B IT 958372 B IT958372 B IT 958372B IT 50899/72 A IT50899/72 A IT 50899/72A IT 5089972 A IT5089972 A IT 5089972A IT 958372 B IT958372 B IT 958372B
Authority
IT
Italy
Prior art keywords
schiumeg
gianti
equipment
forming thermoplastic
thermoplastic articles
Prior art date
Application number
IT50899/72A
Other languages
English (en)
Original Assignee
Structural Foam Prod Inc
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 Structural Foam Prod Inc filed Critical Structural Foam Prod Inc
Application granted granted Critical
Publication of IT958372B publication Critical patent/IT958372B/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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/34—Auxiliary operations
    • B29C44/36—Feeding the material to be shaped
    • B29C44/38—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length
    • B29C44/42—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length using pressure difference, e.g. by injection or by vacuum
    • B29C44/421—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length using pressure difference, e.g. by injection or by vacuum by plastizising the material into a shot cavity and injecting using a plunger
    • 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
    • B29C44/34—Auxiliary operations
    • B29C44/3442—Mixing, kneading or conveying the foamable material
    • 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
    • B29C44/34—Auxiliary operations
    • B29C44/36—Feeding the material to be shaped
    • B29C44/38—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length
    • B29C44/42—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length using pressure difference, e.g. by injection or by vacuum
    • B29C44/424—Details of machines
    • 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
    • B29C44/34—Auxiliary operations
    • B29C44/36—Feeding the material to be shaped
    • B29C44/38—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length
    • B29C44/42—Feeding the material to be shaped into a closed space, i.e. to make articles of definite length using pressure difference, e.g. by injection or by vacuum
    • B29C44/424—Details of machines
    • B29C44/425—Valve or nozzle constructions; Details of injection devices
    • B29C44/427—Valve or nozzle constructions; Details of injection devices having several injection gates
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/83—Injection molding of polyolefin-type foam
IT50899/72A 1971-06-14 1972-06-14 Apparecchio per la formatura di articoli termoplastici schiumeg gianti IT958372B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15261271A 1971-06-14 1971-06-14

Publications (1)

Publication Number Publication Date
IT958372B true IT958372B (it) 1973-10-20

Family

ID=22543643

Family Applications (1)

Application Number Title Priority Date Filing Date
IT50899/72A IT958372B (it) 1971-06-14 1972-06-14 Apparecchio per la formatura di articoli termoplastici schiumeg gianti

Country Status (5)

Country Link
US (1) US3746492A (it)
DE (2) DE7222252U (it)
FR (1) FR2141873A1 (it)
GB (1) GB1400292A (it)
IT (1) IT958372B (it)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3941529A (en) * 1970-06-01 1976-03-02 Union Carbide Corporation Apparatus for forming thermoplastic articles
US3891362A (en) * 1971-06-14 1975-06-24 Structural Foam Products Apparatus for molding foamed thermoplastic articles
US3952927A (en) * 1974-04-26 1976-04-27 Standard Oil Company Injection nozzle having guides for nozzle rod
US4255367A (en) * 1978-09-21 1981-03-10 Standard Oil Company (Indiana) Method for injection molding articles wherein additives are added in selective portions
US5531581A (en) * 1995-03-27 1996-07-02 Donnell, Jr.; Emerson B. Ajustable injection molding apparatus
US5599568A (en) * 1995-08-10 1997-02-04 Donnell, Jr.; Emerson B. Adjustable injection molding apparatus for creating of products within a mold from fluid plastic material
US6052470A (en) * 1996-09-04 2000-04-18 Victor Company Of Japan, Ltd. System for processing audio surround signal
US6287494B1 (en) * 1997-04-02 2001-09-11 Coraltech Limited Gas introduction
US7754134B2 (en) 2007-11-08 2010-07-13 Wagner Michael S Injection molding process

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2478013A (en) * 1942-02-09 1949-08-02 Fred M Roddy Process for preparing and fashioning thermoplastic and thermosetting materials
US3253303A (en) * 1962-06-20 1966-05-31 Rexford H Bradt Injection molding apparatus
US3516123A (en) * 1966-10-03 1970-06-23 Theo O Lang Injection molding machine
US3535742A (en) * 1967-07-31 1970-10-27 Paul Marcus Molding apparatus valve and nozzle
US3674401A (en) * 1969-12-22 1972-07-04 Usm Corp Apparatus for injection molding articles of foam material

Also Published As

Publication number Publication date
DE2228969A1 (de) 1973-01-11
US3746492A (en) 1973-07-17
GB1400292A (en) 1975-07-16
FR2141873A1 (it) 1973-01-26
DE7222252U (de) 1973-09-20

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