SE9604010L - Procedure for injection molding of products with hollow profiles - Google Patents

Procedure for injection molding of products with hollow profiles

Info

Publication number
SE9604010L
SE9604010L SE9604010A SE9604010A SE9604010L SE 9604010 L SE9604010 L SE 9604010L SE 9604010 A SE9604010 A SE 9604010A SE 9604010 A SE9604010 A SE 9604010A SE 9604010 L SE9604010 L SE 9604010L
Authority
SE
Sweden
Prior art keywords
fluid
mould
cavity
resin
pressure
Prior art date
Application number
SE9604010A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE507950C2 (en
SE9604010D0 (en
Inventor
Anders Aaberg
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
Priority to SE9604010A priority Critical patent/SE507950C2/en
Publication of SE9604010D0 publication Critical patent/SE9604010D0/en
Priority to AU49719/97A priority patent/AU4971997A/en
Priority to PCT/SE1997/001742 priority patent/WO1998019848A1/en
Publication of SE9604010L publication Critical patent/SE9604010L/en
Publication of SE507950C2 publication Critical patent/SE507950C2/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
    • B29C45/76—Measuring, controlling or regulating
    • B29C45/7613—Measuring, controlling or regulating the termination of flow of material into the mould
    • 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
    • B29C45/1732—Control circuits therefor

Abstract

Process where a part made of thermoplastic resin is manufactured. The mould (1) is provided with at least one material inlet (4), at least one fluid channel (10) and at least one moveable mould member (2). The mould (1) is further provided with at least one pressure sensor (5). The injection moulding process is initiated by reducing the volume of the mould cavity, whereby an amount of molten thermoplastic resin is injected. A skin is allowed to form in the resin. The pressurised fluid is introduced into the molten resin, forming a fluid cavity (11). The fluid exerts a pressure towards the walls of the mould cavity (3). This pressure is detected by the pressure sensor (5), which guides the movement of the moveable mould member (2). The volume of the mould cavity (3) increases while the fluid is allowed to flow into the growing fluid cavity (11). The resin is allowed to solidify further while the fluid pressure is maintained.
SE9604010A 1996-11-04 1996-11-04 Procedure for injection molding of products with hollow profiles SE507950C2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE9604010A SE507950C2 (en) 1996-11-04 1996-11-04 Procedure for injection molding of products with hollow profiles
AU49719/97A AU4971997A (en) 1996-11-04 1997-10-17 Process at an injection moulding of parts with hollow profiles
PCT/SE1997/001742 WO1998019848A1 (en) 1996-11-04 1997-10-17 Process at an injection moulding of parts with hollow profiles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9604010A SE507950C2 (en) 1996-11-04 1996-11-04 Procedure for injection molding of products with hollow profiles

Publications (3)

Publication Number Publication Date
SE9604010D0 SE9604010D0 (en) 1996-11-04
SE9604010L true SE9604010L (en) 1998-05-05
SE507950C2 SE507950C2 (en) 1998-08-03

Family

ID=20404467

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9604010A SE507950C2 (en) 1996-11-04 1996-11-04 Procedure for injection molding of products with hollow profiles

Country Status (3)

Country Link
AU (1) AU4971997A (en)
SE (1) SE507950C2 (en)
WO (1) WO1998019848A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
HUE024564T2 (en) † 2007-09-20 2016-02-29 Priamus System Tech Ag Method and device for monitoring, documenting, and/or controlling an injection molding machine

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3827333B2 (en) * 1993-04-14 2006-09-27 株式会社プライムポリマー Gas injection molding method and its mold
JPH0716864A (en) * 1993-06-30 1995-01-20 Mitsubishi Chem Corp Production of molded product and injection molding apparatus

Also Published As

Publication number Publication date
SE507950C2 (en) 1998-08-03
SE9604010D0 (en) 1996-11-04
AU4971997A (en) 1998-05-29
WO1998019848A1 (en) 1998-05-14

Similar Documents

Publication Publication Date Title
MX160422A (en) IMPROVEMENTS IN PROCEDURE AND APPARATUS TO MANUFACTURE A PLASTIC ARTICLE MOLDED BY INJECTION
DE59604583D1 (en) Process for the manufacture of plastic objects
DK0688652T3 (en) Injection molding method with opposite inlet
CA2065856A1 (en) Method for the use of gas assistance in the molding of plastic articles
EP0995569A3 (en) Method and device for injection moulding of plastic articles made of thermoplastic material
EP0380688A4 (en) Injecting molding method involving pressing
EP0806272A4 (en) Improved injection molding method for producing resin blow molded article and mold used for said method
JPS55291A (en) Production of form product
EP0666159A3 (en) Injection-molding clamp-reduction.
ATE254021T1 (en) DEVICE FOR INJECTION MOLDING PLASTICIZED PLASTIC MATERIAL INTO A MOLD CAVITY
SE9604010D0 (en) Procedure for injection molding of products with hollow profiles
EP1127674A3 (en) Method and apparatus for injection moulding articles having at least one hollow section
DK0646449T3 (en) Injection molding machine with inner edge inlet
DE3889661T2 (en) PRESSURE CONTROL AND CLOSING STACKED SHAPES OF A MULTI-PIECE SYSTEM WITH PERIODICALLY INJECTING PERIODS.
SE9700469L (en) Method of injection molding thermoplastic products including voids
ES2077776T3 (en) PROCEDURE FOR INJECTION MOLDING OF INJECTION MOLDABLE SYNTHETIC MOLDING PARTS AND DEVICE FOR PERFORMING THE PROCEDURE.
ATE332793T1 (en) INJECTION MOLDING PROCESS WITH VARIABLE MOLD CAVITY FOR PRODUCING CORKS
AU8717891A (en) Process for injection moulding parts made of synthetic thermoplastic materials
JPS6436421A (en) Injection molding method for gate seal
EP1283100A4 (en) Injection molding method and device
ATE359110T1 (en) REPLACEMENT FILTER
CA2208200A1 (en) Injection molding apparatus and method
WO2005097458A3 (en) Method and device for the production of plastic moulded items with an inner cavity by injecting liquid, particularly water, and liquid injection device therefor
Benenati Assembly of Injection Molding Manifold, Nozzles and Mold
NL7710070A (en) Injection moulding arrangement eliminating feed nozzle marks - has ejector operated key closing inlet to filled mould

Legal Events

Date Code Title Description
NUG Patent has lapsed