JPS51576A - Method and device for the production of articles having a non-cellular smooth skin and a cellular from polymer materials - Google Patents

Method and device for the production of articles having a non-cellular smooth skin and a cellular from polymer materials

Info

Publication number
JPS51576A
JPS51576A JP49071233A JP7123374A JPS51576A JP S51576 A JPS51576 A JP S51576A JP 49071233 A JP49071233 A JP 49071233A JP 7123374 A JP7123374 A JP 7123374A JP S51576 A JPS51576 A JP S51576A
Authority
JP
Japan
Prior art keywords
cellular
articles
batch
nozzle
skin
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
JP49071233A
Other languages
Japanese (ja)
Other versions
JPS534873B2 (en
Inventor
Ivan D Nikolov
Stefan G Semerdjiev
Dragan I Nenov
Nikolay T Popov
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Institute po Metaloznanie i Technologia na Metalite
Original Assignee
Institute po Metaloznanie i Technologia na Metalite
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 Institute po Metaloznanie i Technologia na Metalite filed Critical Institute po Metaloznanie i Technologia na Metalite
Publication of JPS51576A publication Critical patent/JPS51576A/en
Publication of JPS534873B2 publication Critical patent/JPS534873B2/ja
Granted legal-status Critical Current

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
    • B29C44/0407—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 regulating the temperature of the mould or parts thereof, e.g. cold mould walls inhibiting foaming of an outer layer
    • 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
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
    • B29K2105/043—Skinned foam

Landscapes

  • Injection Moulding Of Plastics Or The Like (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Molding Of Porous Articles (AREA)

Abstract

1460101 Injection-moulding; cellular cored articles INSTITUTE PO METALOZNANIE I TECHNOLOGIA NA METALITE 9 May 1974 [9 May 1973] 20650/74 Heading B5A Articles having a non-cellular skin and a cellular core are formed from materials contain- ing a blowing agent by firstly injecting the material into a mould at a temperature below that at which foaming takes place and then in- jecting a second batch into the mould at a tem- perature above that at which foaming takes place, the first batch forming the skin and the second batch the core. As shown in Fig. 1, the injection nozzle comprises parts 1, 5 connected by nut 4 and separated by electrically insulating rings 3. An electric heating element 2 is located on the axis of the nozzle with one end welded to part 1, the other end to part 5, and is controlled by supply/control block 7. The nozzle is attached to the plasticizing unit 6 of the injection machine.
JP49071233A 1973-05-09 1974-06-21 Method and device for the production of articles having a non-cellular smooth skin and a cellular from polymer materials Granted JPS51576A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BG23557A BG18676A1 (en) 1973-05-09 1973-05-09

Publications (2)

Publication Number Publication Date
JPS51576A true JPS51576A (en) 1976-01-06
JPS534873B2 JPS534873B2 (en) 1978-02-21

Family

ID=3899438

Family Applications (1)

Application Number Title Priority Date Filing Date
JP49071233A Granted JPS51576A (en) 1973-05-09 1974-06-21 Method and device for the production of articles having a non-cellular smooth skin and a cellular from polymer materials

Country Status (12)

Country Link
JP (1) JPS51576A (en)
AT (1) AT353471B (en)
BE (1) BE814758A (en)
BG (1) BG18676A1 (en)
CA (1) CA1053872A (en)
DD (1) DD111323A5 (en)
DE (1) DE2422579A1 (en)
FR (1) FR2228598B1 (en)
GB (1) GB1460101A (en)
IT (1) IT1035534B (en)
NL (1) NL7406286A (en)
SE (1) SE402547B (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4457511A (en) * 1982-03-15 1984-07-03 William Witkowski Plastic bowling pin and method of making the same
GB2139548B (en) * 1983-05-11 1986-11-19 James Watson Hendry Injection moulding
IT1212799B (en) * 1983-12-15 1989-11-30 Ates Componenti Elettron ELECTRONIC DEVICE WITH CONTROLLED SWITCH FOR THE SUPPRESSION OF TRANSITORS.
US4935191A (en) * 1986-10-16 1990-06-19 Thomas W. Johnson Process of insection molding with pressurized gas assist
GB8706204D0 (en) * 1987-03-16 1987-04-23 Peerless Cinpres Ltd Injection moulding apparatus
US5032345A (en) * 1987-07-09 1991-07-16 Michael Ladney Method of injection molding with pressurized-fluid assist and variable-volume reservoir
US4855094A (en) * 1987-09-21 1989-08-08 Michael Ladney Method for the injection molding of plastic articles using fluid pressure
US4943407A (en) * 1987-09-21 1990-07-24 Michael Ladney Method of and apparatus for injection molding with pressurized fluid assist
US5069859A (en) * 1987-12-16 1991-12-03 Milad Limited Partnership Method of injection molding with pressurized-fluid assist
US4830812A (en) * 1988-04-15 1989-05-16 Michael Ladney Method and system for making a hollow-shaped body from molten resin by injection molding
US4913644A (en) * 1988-04-15 1990-04-03 Michael Ladney System for making a hollow-shaped body from molten resin by injection molding
US5098637A (en) * 1988-07-11 1992-03-24 Milad Limited Partnership Process for injection molding and hollow plastic article produced thereby
US6053720A (en) * 1997-09-22 2000-04-25 Larry J. Winget Mold for use in a gas-assisted injection molding system and gas pin assembly for use therein
US6767487B2 (en) 2001-07-10 2004-07-27 Cinpres Gas Injection Ltd. Plastic expulsion process
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
CN104647679B (en) * 2013-11-22 2018-07-17 法国圣戈班玻璃公司 Form method, vehicle window and the mold of automobile glass encapsulation

Also Published As

Publication number Publication date
JPS534873B2 (en) 1978-02-21
FR2228598B1 (en) 1976-10-15
FR2228598A1 (en) 1974-12-06
DD111323A5 (en) 1975-02-12
IT1035534B (en) 1979-10-20
BG18676A1 (en) 1975-03-20
AT353471B (en) 1979-11-12
SE402547B (en) 1978-07-10
BE814758A (en) 1974-09-02
CA1053872A (en) 1979-05-08
GB1460101A (en) 1976-12-31
NL7406286A (en) 1974-11-12
DE2422579A1 (en) 1974-11-28

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