ES2076906T1 - Moldeo por inyeccion asistido por gas. - Google Patents

Moldeo por inyeccion asistido por gas.

Info

Publication number
ES2076906T1
ES2076906T1 ES93113433T ES93113433T ES2076906T1 ES 2076906 T1 ES2076906 T1 ES 2076906T1 ES 93113433 T ES93113433 T ES 93113433T ES 93113433 T ES93113433 T ES 93113433T ES 2076906 T1 ES2076906 T1 ES 2076906T1
Authority
ES
Spain
Prior art keywords
thermoplastic
flow duct
mold
duct
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.)
Granted
Application number
ES93113433T
Other languages
English (en)
Other versions
ES2076906T3 (es
Inventor
David R Schneider
Robert W Russell
Brett S Sorola
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.)
Cascade Engineering Inc
Original Assignee
Cascade Engineering 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 Cascade Engineering Inc filed Critical Cascade Engineering Inc
Publication of ES2076906T1 publication Critical patent/ES2076906T1/es
Application granted granted Critical
Publication of ES2076906T3 publication Critical patent/ES2076906T3/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
    • B29C45/1734—Nozzles therefor
    • B29C45/1736—Nozzles therefor provided with small holes permitting the flow of gas therethrough, e.g. using a porous element of sintered material
    • 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)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

SE PUEDE MOLDEAR POR INYECCION UN ARTICULO TERMOPLASTICO EN UN MOLDE (10) QUE CONSTA DE UNA CAVIDAD (28) QUE DEFINE LA FORMA DEL ARTICULO, AL MENOS UNA APERTURA DE ENTRADA TERMOPLASTICA (23) ADAPTADA PARA RECIBIR LA RESINA TERMOPLASTICA DERRETIDA PROCEDENTE DE LA BOQUILLA (22) DE UNA MAQUINA DE MOLDEO POR INYECCION (24), UN CONDUCTO DE FLUJO TERMOPLASTICO (21, 26, 30) QUE SE COMUNICA CON LA APERTURA DE ENTRADA TERMOPLASTICA Y CON LA CAVIDAD Y UN CONDUCTO PARA EL FLUJO DE FLUIDOS (32, 34) QUE SE EXTIENDE ENTRANDO EN EL MOLDE. EL CONDUCTO PARA EL FLUJO DE FLUIDOS SE EXTIENDE DESDE UNA SUPERFICIE EXTERIOR DEL MOLDE HASTA EL CONDUCTO DE FLUJO TERMOPLASTICO. SE PUEDE INYECTAR UN FLUIDO DE BAJA VISCOSIDAD, TAL COMO UN GAS, A TRAVES DEL CONDUCTO PARA EL FLUJO DE FLUIDOS Y HACERLO ENTRAR EN EL CONDUCTO DE FLUJO TERMOPLASTICO. UNA PORCION FINAL (44) DEL CONDUCTO PARA EL FLUJO DE FLUIDOS ADYACENTE AL CONDUCTO DE FLUJO TERMOPLASTICO TIENE UN OBTURADOR METALICO POROSO (50) DENTRO DE EL. EL OBTURADOR METALICO POROSO CONSTA DE UN NUCLEO METALICO POROSO (64) QUE PERMITE QUE EL FLUIDO DE BAJA VISCOSIDAD FLUYA A SU TRAVES PERO EVITA QUE EL PLASTICO DERRETIDO PASE A SU TRAVES. EL NUCLEO METALICO POROSO PUEDE CONSISTIR EN METAL SINTERIZADO. ALTERNATIVAMENTE, EL CONDUCTO PARA EL FLUJO DE FLUIDOS SE PUEDE EXTENDER DIRECTAMENTE DESDE UNA SUPERFICIE EXTERIOR DEL MOLDE HASTA LA CAVIDAD DEL MOLDE , EN LUGAR DE HASTA EL CONDUCTO DE FLUJO TERMOPLASTICO.
ES93113433T 1992-05-07 1993-08-23 Moldeo por inyeccion asistido por gas. Expired - Lifetime ES2076906T3 (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US07/879,605 US5284429A (en) 1992-05-07 1992-05-07 Gas-assisted injection molding apparatus
EP93113433A EP0640456B1 (en) 1992-05-07 1993-08-23 Gas-assisted injection molding
JP5235856A JPH0776031A (ja) 1992-05-07 1993-08-30 ガス補助式射出成型用金型とそれを使用する成型方法

Publications (2)

Publication Number Publication Date
ES2076906T1 true ES2076906T1 (es) 1995-11-16
ES2076906T3 ES2076906T3 (es) 1997-10-16

Family

ID=27235200

Family Applications (1)

Application Number Title Priority Date Filing Date
ES93113433T Expired - Lifetime ES2076906T3 (es) 1992-05-07 1993-08-23 Moldeo por inyeccion asistido por gas.

Country Status (5)

Country Link
US (1) US5284429A (es)
EP (1) EP0640456B1 (es)
JP (1) JPH0776031A (es)
DE (2) DE640456T1 (es)
ES (1) ES2076906T3 (es)

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US5639405A (en) * 1995-09-01 1997-06-17 Elizabeth Erikson Trust Method for providing selective control of a gas assisted plastic injection apparatus
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US5820889A (en) * 1996-01-22 1998-10-13 Elizabeth Erikson Trust Gas nozzle for a gas assisted injection molding system
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US6053720A (en) * 1997-09-22 2000-04-25 Larry J. Winget Mold for use in a gas-assisted injection molding system and gas pin assembly for use therein
US6120275A (en) * 1997-09-22 2000-09-19 Larry J. Winget Mold for use in a gas-assisted injection molding system and gas pin assembly for use therein
US6042361A (en) * 1998-03-12 2000-03-28 Larry J. Winget Mold for use in plastic injection molding system and venting pin assembly for use therein
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ATE468958T1 (de) * 2006-12-14 2010-06-15 Sulzer Chemtech Ag Poröses dosierelement mit beschichtung
JP4917456B2 (ja) * 2007-03-06 2012-04-18 サカエ理研工業株式会社 射出成形工法に用いられるガス注入用ノズル装置
GB0807398D0 (en) * 2008-04-23 2008-05-28 Airbus Uk Ltd Improved method of tape laying of thermoplastic composite materials
WO2014010560A1 (ja) * 2012-07-09 2014-01-16 オリンパス株式会社 成形品の成形金型構造および成形品の製造方法
US20220203589A1 (en) * 2020-12-24 2022-06-30 Next Chapter Manufacturing Corporation Vented Mold Pin

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Also Published As

Publication number Publication date
JPH0776031A (ja) 1995-03-20
ES2076906T3 (es) 1997-10-16
DE69311336D1 (de) 1997-07-10
EP0640456B1 (en) 1997-06-04
DE640456T1 (de) 1995-09-28
DE69311336T2 (de) 1997-11-20
EP0640456A1 (en) 1995-03-01
US5284429A (en) 1994-02-08

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