MX172083B - Mejoras en metodo y aparato para el moldeo por inyeccion de articulos de plastico con ayuda de gas - Google Patents
Mejoras en metodo y aparato para el moldeo por inyeccion de articulos de plastico con ayuda de gasInfo
- Publication number
- MX172083B MX172083B MX024733A MX2473391A MX172083B MX 172083 B MX172083 B MX 172083B MX 024733 A MX024733 A MX 024733A MX 2473391 A MX2473391 A MX 2473391A MX 172083 B MX172083 B MX 172083B
- Authority
- MX
- Mexico
- Prior art keywords
- gas
- injection molding
- aid
- plastic articles
- plastic
- Prior art date
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
- B29C45/1705—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
- B29C45/1704—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
- B29C2045/1718—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 sealing or closing the fluid injection opening
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
- Y10S425/812—Venting
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Coating By Spraying Or Casting (AREA)
- Nozzles (AREA)
Abstract
La presente invención se refiere a mejoras en método para el moldeo por inyección de artículos de plástico con ayuda de gas, caracterizadas porque comprenden los pasos de: inyectar la placa presurizada de plástico fundido a través de una trayectoria de flujo y hacia el interior de una cavidad de un molde que define el artículo: despresurizar el plástico fundido en la trayectoria de flujo en una cantidad controlada después de la etapa de inyección; introducir una carga de gas presurizado en un nivel predeterminado hacia el plástico fundido para ayudar a moldear el artículo de conformidad con la cavidad que define el artículo; mantener el gas bajo presión mientras que el plástico se solidifica en la cavidad que define el artículo; ventilar el gas presurizado y retirar el artículo del molde.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/488,980 US5028377A (en) | 1990-03-05 | 1990-03-05 | Method for injection molding plastic article with gas-assistance |
Publications (1)
Publication Number | Publication Date |
---|---|
MX172083B true MX172083B (es) | 1993-12-01 |
Family
ID=23941905
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX024733A MX172083B (es) | 1990-03-05 | 1991-02-28 | Mejoras en metodo y aparato para el moldeo por inyeccion de articulos de plastico con ayuda de gas |
Country Status (12)
Country | Link |
---|---|
US (1) | US5028377A (es) |
EP (1) | EP0524181B1 (es) |
JP (1) | JP3118645B2 (es) |
AT (1) | ATE131106T1 (es) |
AU (1) | AU648778B2 (es) |
BR (1) | BR9106092A (es) |
CA (1) | CA2077445C (es) |
DE (1) | DE69115265T2 (es) |
ES (1) | ES2082968T3 (es) |
MX (1) | MX172083B (es) |
NO (1) | NO303051B1 (es) |
WO (1) | WO1991013740A1 (es) |
Families Citing this family (47)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5225141A (en) * | 1988-07-11 | 1993-07-06 | Milad Limited Partnership | Process for injection molding a hollow plastic article |
DE3913109C5 (de) * | 1989-04-21 | 2010-03-18 | Ferromatik Milacron Maschinenbau Gmbh | Verfahren zum Spritzgießen fluidgefüllter Kunststoffkörper und Vorrichtung zur Durchführung des Verfahrens |
US5295800A (en) * | 1990-12-17 | 1994-03-22 | Automotive Plastic Technology, Inc. | Apparatus for gas assisted injection molding having precise control of injection and holding pressure with stepped holding pressure capability |
US5304058A (en) * | 1991-06-12 | 1994-04-19 | Automotive Plastic Technologies | Injection nozzle |
US5306134A (en) * | 1991-06-12 | 1994-04-26 | Automotive Plastic Technologies | Fluid forcing nozzle |
GB9114324D0 (en) * | 1991-07-03 | 1991-08-21 | Kontor Moulding Systems Ltd | Injection moulding of thermoplastic polymers |
US5204050A (en) * | 1991-10-09 | 1993-04-20 | Loren Norman S | Gas assisted injection molding |
US5328352A (en) * | 1992-03-03 | 1994-07-12 | Pierce William D | Sprue and valve assembly for delivering a curable liquid material to a mold cavity |
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 |
US5304341A (en) * | 1992-12-14 | 1994-04-19 | General Motors Corporation | Injection molding apparatus and method having in-cavity control of plastics and gas flow rates |
JPH0784037B2 (ja) * | 1993-05-11 | 1995-09-13 | アァルピィ東プラ株式会社 | 合成樹脂製容器類の製法 |
DE4319381C2 (de) * | 1993-06-11 | 1996-07-11 | Battenfeld Gmbh | Verfahren zum Spritzgießen von Formteilen aus thermoplastischem Kunststoffmaterial sowie Formwerkzeug zur Durchführung desselben |
US5728325A (en) * | 1994-04-05 | 1998-03-17 | Blankenburg; Karl | Gas assist injection molding apparatus and method with multiple temperature gas supply |
US5773109A (en) * | 1994-04-14 | 1998-06-30 | Asahi Kasei Kogyo Kabushiki Kaisha | Hollow, resin mechanical part having a shaft integrally formed therewith and an injection molding method for producing the same |
US5482669A (en) * | 1994-05-23 | 1996-01-09 | General Motors Corporation | Pulsating gas-assisted injection molding method and apparatus |
US5702656A (en) * | 1995-06-07 | 1997-12-30 | United States Surgical Corporation | Process for making polymeric articles |
US5849236A (en) * | 1996-05-10 | 1998-12-15 | Siegel-Robert, Inc. | Method and apparatus for plastic injection molding flow control |
TW438658B (en) * | 1997-05-07 | 2001-06-07 | Idemitsu Petrochemical Co | Method of obtaining a gas-introduced fiber-reinforced resin injection molding and molding obtained by the same |
DE19750523B4 (de) * | 1997-11-14 | 2007-08-02 | Vereinigung zur Förderung des Instituts für Kunststoffverarbeitung in Industrie und Handwerk an der RWTH Aachen | Verfahren zur Herstellung verrippter Bauteile nach der Gasinjektionstechnik |
US6000925A (en) * | 1997-12-22 | 1999-12-14 | Alexander V. Daniels | Gas assisted injection molding system |
US6099284A (en) * | 1998-07-13 | 2000-08-08 | Green Tokai, Co., Ltd. | Pressure-activated gas injection valve for an injection molding apparatus |
JP3240515B2 (ja) * | 1998-12-10 | 2001-12-17 | 住友重機械工業株式会社 | 射出成形機の射出制御方法 |
US7036501B2 (en) * | 2002-01-17 | 2006-05-02 | Wall W Henry | Oro-pharyngeal airway with breath monitor |
US7226374B2 (en) * | 2002-10-15 | 2007-06-05 | Warrior Lacrosse, Inc. | Lacrosse head and method of forming same |
US8029390B2 (en) * | 2002-05-14 | 2011-10-04 | Warrior Sports, Inc. | Reinforced lacrosse head and related method of manufacture |
US6855280B2 (en) * | 2002-11-27 | 2005-02-15 | Lear Corporation | Method for injection molding of plastic materials using gas holding pressure in mold |
US6890477B2 (en) * | 2003-03-25 | 2005-05-10 | Lear Corporation | Plastic injection molded articles with hollow rib members |
US6899843B2 (en) * | 2003-03-25 | 2005-05-31 | Lear Corporation | Plastic injection molding with moveable mold members forming speaker grill |
US8079843B1 (en) * | 2006-03-31 | 2011-12-20 | Joe Garvin | Self-stripping forming insert |
TWI386301B (zh) * | 2008-03-07 | 2013-02-21 | Hon Hai Prec Ind Co Ltd | 模具裝置及使用該模具裝置之成型方法 |
US20100171244A1 (en) * | 2009-01-07 | 2010-07-08 | Randy Hire | Reaction injection molding |
US8282512B1 (en) | 2009-03-26 | 2012-10-09 | Warrior Sports, Inc. | Lacrosse head |
US8267814B1 (en) | 2009-05-15 | 2012-09-18 | Warrior Sports, Inc. | Climate variable lacrosse heads and related methods of use |
US20130115399A1 (en) | 2010-10-27 | 2013-05-09 | Richard W. Roberts | In-situ foam core articles |
US9346237B2 (en) | 2010-10-27 | 2016-05-24 | Richard W. Roberts | Recyclable plastic structural articles and method of manufacture |
US9272484B2 (en) | 2012-01-25 | 2016-03-01 | Richard W. Roberts, JR. | Structural plastic articles, method of use, and methods of manufacture |
US9073462B2 (en) | 2012-03-28 | 2015-07-07 | Richard W. Roberts | In-situ foam core vehicle seating system and method of manufacture |
US8840819B2 (en) | 2012-03-28 | 2014-09-23 | Richard W. Roberts, JR. | In-situ foam core structural energy management system and method of manufacture |
US10207606B2 (en) | 2012-03-28 | 2019-02-19 | Richard W. Roberts | Recyclable plastic structural articles and method of manufacture |
US9102086B2 (en) | 2012-03-28 | 2015-08-11 | Richard W. Roberts | In-situ foam core structural articles and methods of manufacture of profiles |
US10328662B2 (en) | 2012-11-01 | 2019-06-25 | Richard W. Roberts | In-situ foam core stress mitigation component and method of manufacture |
US9271610B2 (en) | 2013-04-12 | 2016-03-01 | Richard W. Roberts, JR. | Bathtub/shower tray support |
EP2886289B1 (en) | 2013-12-19 | 2016-08-03 | The Gillette Company | Method to manufacture an injection molded component and injection molded component |
US10513064B2 (en) | 2013-12-19 | 2019-12-24 | The Procter & Gamble Company | Process and apparatus for making multi-component hollow article and article made thereby |
US9713890B2 (en) | 2014-11-25 | 2017-07-25 | Faurecia Interior Systems, Inc. | Methods of making interior panels having integrated airbag deployment doors for motor vehicles |
US11007687B2 (en) | 2017-10-02 | 2021-05-18 | Legacy Foam Llc | Polyurethane injection system and method |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2991506A (en) * | 1958-06-02 | 1961-07-11 | Allied Chem | Apparatus for low pressure molding |
US4129635A (en) * | 1973-12-28 | 1978-12-12 | Asahi-Dow Limited | Method for producing foamed moldings from synthetic resin materials |
DE2501314A1 (de) * | 1975-01-15 | 1976-07-22 | Roehm Gmbh | Spritzgiessen hohler formteile aus thermoplastischen kunststoffen, insbesondere fuer den bausektor |
FR2419815A1 (fr) * | 1978-03-17 | 1979-10-12 | Rostovsky Na Donu Inst Tekhn | Installation pour la fabrication de modeles consommables fusibles employes dans le moulage a la cire perdue |
US4601870A (en) * | 1983-04-27 | 1986-07-22 | M.C.L. Co., Ltd. | Injection molding process |
GB8706204D0 (en) * | 1987-03-16 | 1987-04-23 | Peerless Cinpres Ltd | Injection moulding apparatus |
US4855094A (en) * | 1987-09-21 | 1989-08-08 | Michael Ladney | Method for the injection molding of plastic articles using fluid pressure |
GB8722620D0 (en) * | 1987-09-25 | 1987-11-04 | Cinpres Ltd | Injection moulding |
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 |
-
1990
- 1990-03-05 US US07/488,980 patent/US5028377A/en not_active Expired - Lifetime
-
1991
- 1991-02-06 ES ES91904363T patent/ES2082968T3/es not_active Expired - Lifetime
- 1991-02-06 AT AT91904363T patent/ATE131106T1/de not_active IP Right Cessation
- 1991-02-06 AU AU72590/91A patent/AU648778B2/en not_active Ceased
- 1991-02-06 BR BR919106092A patent/BR9106092A/pt not_active Application Discontinuation
- 1991-02-06 WO PCT/US1991/000819 patent/WO1991013740A1/en not_active Application Discontinuation
- 1991-02-06 CA CA002077445A patent/CA2077445C/en not_active Expired - Fee Related
- 1991-02-06 EP EP91904363A patent/EP0524181B1/en not_active Revoked
- 1991-02-06 DE DE69115265T patent/DE69115265T2/de not_active Revoked
- 1991-02-28 MX MX024733A patent/MX172083B/es unknown
- 1991-03-05 JP JP03062379A patent/JP3118645B2/ja not_active Expired - Lifetime
-
1992
- 1992-09-04 NO NO923468A patent/NO303051B1/no unknown
Also Published As
Publication number | Publication date |
---|---|
AU7259091A (en) | 1991-10-10 |
CA2077445A1 (en) | 1991-09-06 |
US5028377A (en) | 1991-07-02 |
EP0524181A1 (en) | 1993-01-27 |
NO303051B1 (no) | 1998-05-25 |
WO1991013740A1 (en) | 1991-09-19 |
JPH05138677A (ja) | 1993-06-08 |
CA2077445C (en) | 1995-12-19 |
DE69115265T2 (de) | 1996-08-01 |
DE69115265D1 (de) | 1996-01-18 |
ES2082968T3 (es) | 1996-04-01 |
BR9106092A (pt) | 1993-02-24 |
NO923468D0 (no) | 1992-09-04 |
EP0524181A4 (en) | 1993-05-26 |
AU648778B2 (en) | 1994-05-05 |
EP0524181B1 (en) | 1995-12-06 |
ATE131106T1 (de) | 1995-12-15 |
JP3118645B2 (ja) | 2000-12-18 |
NO923468L (no) | 1992-11-04 |
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