IT1027943B - METHOD OF PRODUCTION OF SHAPED ARTICLES FROM SYNTHETIC RESIN MATERIALS - Google Patents

METHOD OF PRODUCTION OF SHAPED ARTICLES FROM SYNTHETIC RESIN MATERIALS

Info

Publication number
IT1027943B
IT1027943B IT3089374A IT3089374A IT1027943B IT 1027943 B IT1027943 B IT 1027943B IT 3089374 A IT3089374 A IT 3089374A IT 3089374 A IT3089374 A IT 3089374A IT 1027943 B IT1027943 B IT 1027943B
Authority
IT
Italy
Prior art keywords
production
synthetic resin
resin materials
shaped articles
articles
Prior art date
Application number
IT3089374A
Other languages
Italian (it)
Original Assignee
Asahi Dow Ltd
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
Priority claimed from JP741245A external-priority patent/JPS5325352B2/ja
Priority claimed from JP7362874A external-priority patent/JPS512763A/en
Priority claimed from JP7464274A external-priority patent/JPS514255A/en
Application filed by Asahi Dow Ltd filed Critical Asahi Dow Ltd
Application granted granted Critical
Publication of IT1027943B publication Critical patent/IT1027943B/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
    • B29C44/10—Applying counter-pressure during expanding
    • B29C44/105—Applying counter-pressure during expanding the counterpressure being exerted by a fluid
    • 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
    • B29C45/1703—Introducing an auxiliary fluid into the mould
    • B29C45/1704—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles
    • 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
    • B29C45/1703—Introducing an auxiliary fluid into the mould
    • B29C45/1704—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles
    • B29C45/1706—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles using particular fluids or fluid generating substances
    • 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
    • B29C45/1703—Introducing an auxiliary fluid into the mould
    • B29C45/1704—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles
    • B29C45/1706—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles using particular fluids or fluid generating substances
    • B29C2045/1707—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles using particular fluids or fluid generating substances using a liquid, e.g. water
    • B29C2045/1708—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles using particular fluids or fluid generating substances using a liquid, e.g. water removing the liquid from the hollow
    • 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
    • B29C45/1703—Introducing an auxiliary fluid into the mould
    • B29C45/1704—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles
    • B29C45/1706—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles using particular fluids or fluid generating substances
    • B29C2045/1709—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles using particular fluids or fluid generating substances using a cooling fluid
    • 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
    • B29C45/1703—Introducing an auxiliary fluid into the mould
    • B29C45/1704—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles
    • B29C2045/1726—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles moving the fluid through the hollow using a fluid inlet and a fluid outlet
    • 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
    • B29C45/56—Means for plasticising or homogenising the moulding material or forcing it into the mould using mould parts movable during or after injection, e.g. injection-compression moulding
    • B29C45/561—Injection-compression moulding
    • B29C2045/563—Enlarging the mould cavity during injection
    • 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
    • B29C45/1703—Introducing an auxiliary fluid into the mould
    • B29C45/1704—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles
    • B29C45/1705—Introducing an auxiliary fluid into the mould the fluid being introduced into the interior of the injected material which is still in a molten state, e.g. for producing hollow articles using movable mould parts
    • 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
    • B29C45/1703—Introducing an auxiliary fluid into the mould
    • B29C45/174—Applying a pressurised fluid to the outer surface of the injected material inside the mould cavity, e.g. for preventing shrinkage marks

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)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
IT3089374A 1973-12-28 1974-12-20 METHOD OF PRODUCTION OF SHAPED ARTICLES FROM SYNTHETIC RESIN MATERIALS IT1027943B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP741245A JPS5325352B2 (en) 1973-12-28 1973-12-28
JP7362874A JPS512763A (en) 1974-06-27 1974-06-27 ATSUNIKUBUTSUPINNOSEIKEIHOHOOYOBI SOCHI
JP7464274A JPS514255A (en) 1974-06-29 1974-06-29 Chukubutsupinno seikeihoho

Publications (1)

Publication Number Publication Date
IT1027943B true IT1027943B (en) 1978-12-20

Family

ID=27274836

Family Applications (1)

Application Number Title Priority Date Filing Date
IT3089374A IT1027943B (en) 1973-12-28 1974-12-20 METHOD OF PRODUCTION OF SHAPED ARTICLES FROM SYNTHETIC RESIN MATERIALS

Country Status (3)

Country Link
DE (1) DE2461580B2 (en)
FR (1) FR2256021A1 (en)
IT (1) IT1027943B (en)

Families Citing this family (50)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4136220A (en) * 1976-07-14 1979-01-23 Union Carbide Corporation Process for the molding of plastic structural web and the resulting articles
US4164523A (en) * 1976-09-09 1979-08-14 Robert Hanning Method of injection-molding and cooling of shaped synthetic-resin bodies
JPS59383B2 (en) * 1977-01-05 1984-01-06 旭化成株式会社 molding method
JPS53102960A (en) * 1977-02-21 1978-09-07 Asahi Chem Ind Co Ltd Injection mold
US4247515A (en) * 1978-08-23 1981-01-27 Union Carbide Corporation Process for molding of plastic structural web articles
US4234642A (en) * 1978-12-08 1980-11-18 Union Carbide Corporation Molded plastic structural web articles
US4255368A (en) * 1979-07-18 1981-03-10 Union Carbide Corporation Structural foam molding process
WO1981000535A1 (en) * 1979-08-24 1981-03-05 Ex Cell O Corp Method and apparatus for injection molding foamed resin parts with a smooth finish
GB2139548B (en) * 1983-05-11 1986-11-19 James Watson Hendry Injection moulding
US4935191A (en) * 1986-10-16 1990-06-19 Thomas W. Johnson Process of insection molding with pressurized gas assist
US5112563A (en) * 1986-05-19 1992-05-12 Nitrojection Corporation Process of injection molding with pressurized gas assist
AU7247087A (en) * 1986-05-19 1987-11-26 Hendry, J.W. Injection with screw feed and subsequently gas pressure
GB8706204D0 (en) * 1987-03-16 1987-04-23 Peerless Cinpres Ltd Injection moulding apparatus
JPH0788025B2 (en) * 1987-04-28 1995-09-27 三菱瓦斯化学株式会社 Manufacturing method of synthetic resin molded product having uneven wall reinforcement structure
GB8722620D0 (en) * 1987-09-25 1987-11-04 Cinpres Ltd Injection moulding
FR2624425B1 (en) * 1987-12-15 1990-05-25 Plastic Omnium Cie PROCESS FOR OVERMOLDING NON-RIGID SHEETS BY INJECTION OF THERMOPLASTIC MATERIALS TO MAKE COMPOSITE PARTS
FR2646801B1 (en) * 1989-05-12 1991-10-18 Peugeot METHOD FOR MANUFACTURING A PLASTIC WINDSCREEN WIPER ARM, PARTICULARLY FOR A MOTOR VEHICLE, WINDSCREEN WIPER ARM OBTAINED BY THIS METHOD AND WINDSCREEN WIPER ASSEMBLY COMPRISING SUCH ARM
GB2231834A (en) * 1989-05-27 1990-11-28 Dunlop Ltd Hollow elongate mouldings
US5076778A (en) * 1989-05-29 1991-12-31 Schade Kg Arrangement for producing a hollow shaped body
DE3917366A1 (en) * 1989-05-29 1991-01-10 Schade Kg METHOD FOR PRODUCING HOLLOW-INJECTED MOLDED BODIES FROM PLASTIC AND DEVICE FOR IMPLEMENTING THE METHOD
DE3927122C3 (en) * 1989-08-17 1995-03-23 Thyssen Polymer Gmbh Injection molding process and device for the production of hollow plastic objects
DE3936289C2 (en) * 1989-11-01 1996-01-25 Battenfeld Gmbh Device for injection molding plastic objects containing cavities
US5049056A (en) * 1990-03-14 1991-09-17 Nitrojection Corporation Gas supply sprue bushing for injection molding machines
AT398292B (en) * 1990-05-22 1994-11-25 Engel Gmbh Maschbau INJECTION MOLDING MACHINE
NL9001522A (en) * 1990-07-04 1992-02-03 Schreiner Luchtvaart METHOD FOR MANUFACTURING AN ARTICLE COMPOSITION OF A FOAM CORE AND POSSIBLE ONE OR MORE COATINGS
JPH0712619B2 (en) * 1990-07-18 1995-02-15 豊田合成株式会社 Injection hollow mold
DE4024549C2 (en) * 1990-08-02 1994-12-08 Helphos Gmbh Process for the production of injection molded parts
DE4034663A1 (en) * 1990-10-31 1992-05-07 Delbrouck Franz Gmbh METHOD FOR INJECTION MOLDING PARTS FROM THERMOPLASTIC PLASTIC
DE69030108T2 (en) * 1990-12-20 1997-10-09 Asahi Chemical Ind MANUFACTURING METHOD FOR A MOLDED PLASTIC OBJECT
JP2976059B2 (en) * 1991-02-08 1999-11-10 住友化学工業株式会社 Manufacturing method of hollow molded products
US5474723A (en) * 1992-04-17 1995-12-12 Horikoshi; Maki Method of forming a shaped article of resin using cavity enlargement to induce foaming
US5284429A (en) * 1992-05-07 1994-02-08 Cascade Engineering, Inc. Gas-assisted injection molding apparatus
DE19516290C2 (en) * 1995-05-04 1997-09-11 Battenfeld Gmbh Method and device for injection molding plastic objects
DE19519801A1 (en) * 1995-05-30 1996-12-05 Bauer Engineering Gmbh Mold, in particular for plastic injection molding by means of internal gas pressure, and method for producing plastic injection molded parts using the mold
DE19929700A1 (en) * 1999-06-29 2001-01-04 Achim Bernhardt Plastic molding production, by injecting plastic through inlet into closed mould, feeding gas into mould via second inlet to form cavity, removing it, increasing cross-section of second inlet and feeding in liquid coolant
US6579489B1 (en) 1999-07-01 2003-06-17 Alliance Gas Systems, Inc. Process for gas assisted and water assisted injection molding
DE10007994C2 (en) 2000-02-22 2003-11-13 Battenfeld Gmbh Method and device for injection molding of at least one cavity with molded parts
DE10011144B4 (en) * 2000-03-07 2004-09-23 Elco Kunststoffe Gmbh Process for the production of molded plastic parts with a cavity by the injection molding process
DE10036101A1 (en) * 2000-07-25 2002-03-28 Volker Heppert Process for the production of foamed plastic objects
DE10114415B4 (en) 2001-03-23 2004-11-18 Battenfeld Gmbh Process for the injection molding of at least one cavity with molded parts
DE10114419B4 (en) 2001-03-23 2004-11-18 Battenfeld Gmbh Process for the injection molding of at least one cavity with molded parts
DE10114418B4 (en) * 2001-03-23 2005-03-17 Battenfeld Gmbh Method for injection molding of thermosetting plastic moldings having at least one cavity
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
GB0314451D0 (en) * 2003-06-20 2003-07-23 Cinpres Gas Injection Ltd Liquid assisted moulding method and apparatus
BR0303147A (en) * 2003-07-25 2005-04-05 Metagal Ind & Comercio Method for Obtaining External Rearview Mirror Bracket and External Rearview Mirror Bracket
AT502381B1 (en) * 2005-11-11 2007-03-15 Engel Austria Gmbh Production of moldings with outer layer of plastic foam and central cavity comprises feeding fluid, especially water, into foam in mold to produce cavity
DE102006054709A1 (en) * 2006-11-18 2008-05-21 Friedrich Westphal Spraying mold for use with injection molding machine for producing component part, has valve provided for dosing fluid, arranged in flow direction of fluid during application into mold in front of fluid-injector and directly in or on mold
DE102007029493B4 (en) * 2007-06-26 2015-07-16 Incoe International, Inc. Process and apparatus for injection molding foamed injection molded articles and injection molded articles produced by the process

Also Published As

Publication number Publication date
DE2461580B2 (en) 1978-10-12
DE2461580A1 (en) 1975-07-17
FR2256021B1 (en) 1977-07-08
FR2256021A1 (en) 1975-07-25

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19931229