ES2167867T3 - Procedimiento de fabricacion de un producto plastico. - Google Patents

Procedimiento de fabricacion de un producto plastico.

Info

Publication number
ES2167867T3
ES2167867T3 ES98904468T ES98904468T ES2167867T3 ES 2167867 T3 ES2167867 T3 ES 2167867T3 ES 98904468 T ES98904468 T ES 98904468T ES 98904468 T ES98904468 T ES 98904468T ES 2167867 T3 ES2167867 T3 ES 2167867T3
Authority
ES
Spain
Prior art keywords
hot runner
volume
injected
plastic product
fluid
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.)
Expired - Lifetime
Application number
ES98904468T
Other languages
English (en)
Inventor
Manfred Brauner
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.)
Perstorp AB
Original Assignee
Perstorp AB
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 Perstorp AB filed Critical Perstorp AB
Application granted granted Critical
Publication of ES2167867T3 publication Critical patent/ES2167867T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • B29C45/1711—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 and removing excess material from the mould cavity by the introduced fluid, e.g. to an overflow cavity
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

LA INVENCION SE REFIERE A UN PROCEDIMIENTO DE FABRICACION DE UN PRODUCTO PLASTICO EN UN MOLDE (20) QUE COMPRENDE UN SISTEMA CON CANAL DE BEBEDERO CALENTADO (22) Y AL MENOS UNA CAVIDAD DE MOLDE (21). UN FLUIDO A PRESION SE INYECTA A TRAVES DE AL MENOS UN CANAL DE FLUIDO (23) PARA CREAR UN ESPACIO HUECO (1) EN EL PRODUCTO FABRICADO. EL CANAL DE BEBEDERO CALENTADO 822) ESTA DOTADO POR AL MENOS UN MEDIO DE AJUSTE DE VOLUMEN (24) QUE PERMITE AUMENTAR Y REDUCIR SU VOLUMEN. UNA DETERMINADA CANTIDAD DE MATERIAL TERMOPLASTICO EN FUSION SE INYECTA MIENTRAS QUE EL VOLUMEN DEL CANAL DE BEBEDERO CALENTADO (22) SE REDUCE MEDIANTE EL MEDIO DE AJUSTE DE VOLUMEN (24). UN FLUIDO A PRESION SE INYECTA DESPUES DE QUE EL MATERIAL TERMOPLASTICO HAYA TENIDO EL TIEMPO DE SOLIDIFICARSE UN POCO. EL FLUIDO A PRESION REPELE LA MASA TERMOPLASTICA EN EL CANAL DE BEBEDERO CALENTADO (22), PUDIENDO EL VOLUMEN DE ESTE ULTIMO AUMENTAR MEDIANTE EL MEDIO DE AJUSTE DE VOLUMEN (24). LA MASA TERMOPLASTICA EN LA CAVIDAD DE MOLDE (21) PUEDE SEGUIR SOLIDIFICANDOSE , DESPUES DE LO CUAL SE EVACUA EL FLUIDO.
ES98904468T 1997-02-10 1998-02-09 Procedimiento de fabricacion de un producto plastico. Expired - Lifetime ES2167867T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9700469A SE508528C2 (sv) 1997-02-10 1997-02-10 Förfarande vid formsprutning av termoplastprodukter innefattande hålrum

Publications (1)

Publication Number Publication Date
ES2167867T3 true ES2167867T3 (es) 2002-05-16

Family

ID=20405748

Family Applications (1)

Application Number Title Priority Date Filing Date
ES98904468T Expired - Lifetime ES2167867T3 (es) 1997-02-10 1998-02-09 Procedimiento de fabricacion de un producto plastico.

Country Status (8)

Country Link
EP (1) EP0958120B1 (es)
AT (1) ATE208257T1 (es)
AU (1) AU6233198A (es)
DE (1) DE69802381T2 (es)
DK (1) DK0958120T3 (es)
ES (1) ES2167867T3 (es)
SE (1) SE508528C2 (es)
WO (1) WO1998034771A1 (es)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6998174B2 (en) 2000-02-24 2006-02-14 Conix Corporation Integrated co-injection molded vehicle components and methods of making the same
US6843954B2 (en) 2000-02-24 2005-01-18 Conix Corporation Injection molding techniques utilizing fluid channels
WO2001062486A1 (en) * 2000-02-24 2001-08-30 Conix Corporation Low-density injection-molded body components
US6787097B1 (en) * 2003-06-20 2004-09-07 Lear Corporation Multiple cavity gas assisted plastic injection molding
DE102007001756B4 (de) 2007-01-11 2008-12-18 Itw Automotive Products Gmbh & Co. Kg Verfahren und Spritzgussform zum Spritzgießen von hohlen Formteilen aus Kunststoff
WO2009112387A1 (de) * 2008-03-11 2009-09-17 Basf Se VERFAHREN UND VORRICHTUNG ZUM SPRITZGIEßEN VON HOHLEN FORMTEILEN AUS KUNSTSTOFF

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5098637A (en) * 1988-07-11 1992-03-24 Milad Limited Partnership Process for injection molding and hollow plastic article produced thereby
DE4319381C2 (de) * 1993-06-11 1996-07-11 Battenfeld Gmbh Verfahren zum Spritzgießen von Formteilen aus thermoplastischem Kunststoffmaterial sowie Formwerkzeug zur Durchführung desselben
SE503969E (sv) * 1994-01-28 2004-05-04 Perstorp Ab Sarg
US5639417A (en) * 1994-07-15 1997-06-17 Mitsubishi Gas Chemical Company, Inc. Mold apparatus for process for injection molding

Also Published As

Publication number Publication date
SE9700469L (sv) 1998-08-11
AU6233198A (en) 1998-08-26
SE508528C2 (sv) 1998-10-12
ATE208257T1 (de) 2001-11-15
EP0958120A1 (en) 1999-11-24
EP0958120B1 (en) 2001-11-07
DK0958120T3 (da) 2001-12-17
DE69802381D1 (de) 2001-12-13
WO1998034771A1 (en) 1998-08-13
DE69802381T2 (de) 2002-07-11
SE9700469D0 (sv) 1997-02-10

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