WO2012178145A3 - Appareil de moulage par injection et procédé permettant l'injection aval d'un fluide dans un écoulement de matériau - Google Patents

Appareil de moulage par injection et procédé permettant l'injection aval d'un fluide dans un écoulement de matériau Download PDF

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Publication number
WO2012178145A3
WO2012178145A3 PCT/US2012/043944 US2012043944W WO2012178145A3 WO 2012178145 A3 WO2012178145 A3 WO 2012178145A3 US 2012043944 W US2012043944 W US 2012043944W WO 2012178145 A3 WO2012178145 A3 WO 2012178145A3
Authority
WO
WIPO (PCT)
Prior art keywords
fluid
barrel
polymer material
manifold
downstream
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.)
Ceased
Application number
PCT/US2012/043944
Other languages
English (en)
Other versions
WO2012178145A2 (fr
Inventor
Mark D. Moss
Vito Galati
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.)
Synventive Molding Solutions Inc
Original Assignee
Synventive Molding Solutions 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 Synventive Molding Solutions Inc filed Critical Synventive Molding Solutions Inc
Publication of WO2012178145A2 publication Critical patent/WO2012178145A2/fr
Publication of WO2012178145A3 publication Critical patent/WO2012178145A3/fr
Anticipated expiration legal-status Critical
Ceased 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
    • B29C44/34—Auxiliary operations
    • B29C44/3469—Cell or pore nucleation
    • B29C44/348—Cell or pore nucleation by regulating the temperature and/or the pressure, e.g. suppression of foaming until the pressure is rapidly decreased
    • 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
    • B29C44/3446—Feeding the blowing agent
    • 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
    • B29C45/18—Feeding the material into the injection moulding apparatus, i.e. feeding the non-plastified material into the injection unit
    • B29C45/1816—Feeding auxiliary material, e.g. colouring 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
    • 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
    • B29C45/1701—Component parts, details or accessories; Auxiliary operations using a particular environment during moulding, e.g. moisture-free or dust-free
    • B29C2045/1702—Component parts, details or accessories; Auxiliary operations using a particular environment during moulding, e.g. moisture-free or dust-free dissolving or absorbing a fluid in the plastic 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
    • 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
    • B29C45/26—Moulds
    • B29C45/27—Sprue channels ; Runner channels or runner nozzles
    • B29C45/2701—Details not specific to hot or cold runner channels
    • 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
    • B29C45/26—Moulds
    • B29C45/27—Sprue channels ; Runner channels or runner nozzles
    • B29C45/2725—Manifolds

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)

Abstract

L'invention concerne un appareil permettant de provoquer l'expansion de la matrice d'un matériau polymère injecté sous pression dans la cavité (60c) d'un moule (60), l'appareil comprenant : une machine d'injection comportant un fût (70) dans lequel un matériau polymère sélectionné est distribué, le fût (70) comprenant un passage tubulaire allongé se terminant à une extrémité aval dans un orifice de sortie de fût (74), le matériau polymère étant converti au sein du fût (70) en un fluide qui se déplace sous la forme d'un écoulement sous pression ; une tubulure (50), une ou plusieurs buses (64) ayant chacune un orifice de sortie aval communiquant de façon étanche avec une porte correspondante dans la cavité (60c) du moule (60) ; et un système d'injection (30, 30h, 30n) ayant un orifice de sortie ou de refoulement (X) communiquant de façon étanche avec une admission (40) vers la tubulure (50) ou avec un canal en direction de la tubulure ou avec une ou plusieurs des buses, le système d'injection injectant un fluide inerte sélectionné dans le matériau polymère fluide sous pression.
PCT/US2012/043944 2011-06-23 2012-06-25 Appareil de moulage par injection et procédé permettant l'injection aval d'un fluide dans un écoulement de matériau Ceased WO2012178145A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201161500349P 2011-06-23 2011-06-23
US61/500,349 2011-06-23

Publications (2)

Publication Number Publication Date
WO2012178145A2 WO2012178145A2 (fr) 2012-12-27
WO2012178145A3 true WO2012178145A3 (fr) 2013-07-04

Family

ID=46514772

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2012/043944 Ceased WO2012178145A2 (fr) 2011-06-23 2012-06-25 Appareil de moulage par injection et procédé permettant l'injection aval d'un fluide dans un écoulement de matériau

Country Status (1)

Country Link
WO (1) WO2012178145A2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3720675B1 (fr) * 2017-12-04 2022-01-19 Sapa S.P.A. Méthode de production par injection-compression ou combinaison d'injection-compression et d'injection d'un objet en polymère thermoplastique mélangé à au moins un gaz à l'état supercritique
WO2019111086A1 (fr) * 2017-12-04 2019-06-13 Sapa S.P.A. Méthode de production d'un objet constitué d'un polymère thermoplastique mélangé à au moins un gaz à l'état supercritique
CN112895281A (zh) * 2021-03-30 2021-06-04 泰瑞机器股份有限公司 一种无流道多喷嘴装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4255367A (en) * 1978-09-21 1981-03-10 Standard Oil Company (Indiana) Method for injection molding articles wherein additives are added in selective portions
WO1998043798A1 (fr) * 1997-04-02 1998-10-08 Coraltech Limited Introduction de gaz
WO2000054952A1 (fr) * 1999-03-15 2000-09-21 Ulrich Stieler Procede de production d'articles moules par injection mousses physiquement

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5158986A (en) 1991-04-05 1992-10-27 Massachusetts Institute Of Technology Microcellular thermoplastic foamed with supercritical fluid
US5866053A (en) 1993-11-04 1999-02-02 Massachusetts Institute Of Technology Method for providing continuous processing of microcellular and supermicrocellular foamed materials
WO1997006935A1 (fr) 1995-08-14 1997-02-27 Massachusetts Institute Of Technology Dispositif d'etranglement a engrenage en tant que dispositif de nuceation dans un systeme d'extrusion en continu d'un materiau microcellulaire
US20020147244A1 (en) 2001-03-07 2002-10-10 Kishbaugh Levi A. Injection-molded crystalline/semicrystalline material

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4255367A (en) * 1978-09-21 1981-03-10 Standard Oil Company (Indiana) Method for injection molding articles wherein additives are added in selective portions
WO1998043798A1 (fr) * 1997-04-02 1998-10-08 Coraltech Limited Introduction de gaz
WO2000054952A1 (fr) * 1999-03-15 2000-09-21 Ulrich Stieler Procede de production d'articles moules par injection mousses physiquement

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
STIELER ULRICH: "Schäumen im Werkzeug", KUNSTOFFE INTERNATIONAL, CARL HANSER VERLAG, MUNCHEN, DE, vol. 9, 1 January 2008 (2008-01-01), pages 68 - 71, XP008099929, ISSN: 0023-5563 *

Also Published As

Publication number Publication date
WO2012178145A2 (fr) 2012-12-27

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