IT947068B - METHOD FOR INJECTION MOLDING OF FOAM MATERIAL ARTICLES - Google Patents

METHOD FOR INJECTION MOLDING OF FOAM MATERIAL ARTICLES

Info

Publication number
IT947068B
IT947068B IT19915/72A IT1991572A IT947068B IT 947068 B IT947068 B IT 947068B IT 19915/72 A IT19915/72 A IT 19915/72A IT 1991572 A IT1991572 A IT 1991572A IT 947068 B IT947068 B IT 947068B
Authority
IT
Italy
Prior art keywords
injection molding
foam material
material articles
articles
foam
Prior art date
Application number
IT19915/72A
Other languages
Italian (it)
Original Assignee
Usm Corp
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 Usm Corp filed Critical Usm Corp
Application granted granted Critical
Publication of IT947068B publication Critical patent/IT947068B/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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/47—Means for plasticising or homogenising the moulding material or forcing it into the mould using screws
    • B29C45/50—Axially movable screw
    • 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
    • B29C44/422—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 injecting by forward movement of the plastizising screw

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Coating By Spraying Or Casting (AREA)
IT19915/72A 1971-01-29 1972-01-28 METHOD FOR INJECTION MOLDING OF FOAM MATERIAL ARTICLES IT947068B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP322371A JPS5428426B1 (en) 1971-01-29 1971-01-29

Publications (1)

Publication Number Publication Date
IT947068B true IT947068B (en) 1973-05-21

Family

ID=11551429

Family Applications (1)

Application Number Title Priority Date Filing Date
IT19915/72A IT947068B (en) 1971-01-29 1972-01-28 METHOD FOR INJECTION MOLDING OF FOAM MATERIAL ARTICLES

Country Status (20)

Country Link
JP (1) JPS5428426B1 (en)
AT (1) AT342290B (en)
BE (1) BE778748A (en)
CA (1) CA977114A (en)
CH (1) CH533001A (en)
CS (1) CS166042B2 (en)
DE (1) DE2204157B2 (en)
DK (1) DK142608B (en)
ES (1) ES399703A1 (en)
FI (1) FI56641C (en)
FR (1) FR2123540B1 (en)
GB (1) GB1382274A (en)
HU (1) HU167065B (en)
IL (1) IL38667A (en)
IS (1) IS2054A7 (en)
IT (1) IT947068B (en)
NL (1) NL172131C (en)
NO (1) NO138281C (en)
PL (1) PL84475B1 (en)
SE (1) SE8103741L (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3805215A1 (en) * 1988-02-19 1989-08-31 Triumph Adler Ag METHOD FOR PRODUCING A PLASTIC WRITING ROLL FOR WRITING OR SIMILAR OFFICE MACHINES

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3384691A (en) * 1965-09-10 1968-05-21 Allied Chem Method for molding a structure having a foamed plastic core substantially enclosed within an essentially unfoamed plastic layer
CH471671A (en) * 1967-06-09 1969-04-30 United Shoe Machinery Corp Method and device for injection molding objects made of foam
DE1950406C3 (en) * 1968-10-15 1981-12-03 USM Corp., 06032 Farmington, Conn. Process for the injection molding of objects from a mixture of a foamable plastic and a temperature-sensitive blowing agent

Also Published As

Publication number Publication date
CH533001A (en) 1973-01-31
BE778748A (en) 1972-05-16
NO138281B (en) 1978-05-02
ATA68972A (en) 1977-07-15
FR2123540B1 (en) 1975-10-24
DK142608B (en) 1980-12-01
FI56641B (en) 1979-11-30
NL172131C (en) 1983-07-18
CS166042B2 (en) 1976-01-29
FR2123540A1 (en) 1972-09-08
NO138281C (en) 1978-08-09
PL84475B1 (en) 1976-04-30
IL38667A0 (en) 1972-03-28
IS2054A7 (en) 1972-02-16
ES399703A1 (en) 1974-12-01
SE8103741L (en) 1981-06-15
IL38667A (en) 1975-05-22
DE2204157C3 (en) 1989-02-23
DE2204157A1 (en) 1972-08-10
DK142608C (en) 1981-08-03
CA977114A (en) 1975-11-04
NL172131B (en) 1983-02-16
FI56641C (en) 1980-03-10
AT342290B (en) 1978-03-28
DE2204157B2 (en) 1981-02-26
GB1382274A (en) 1975-01-29
NL7201213A (en) 1972-08-01
HU167065B (en) 1975-07-28
JPS5428426B1 (en) 1979-09-17

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