ES459748A1 - Procedimiento para obtener un articulo de trama estructural plastica moldeada. - Google Patents

Procedimiento para obtener un articulo de trama estructural plastica moldeada.

Info

Publication number
ES459748A1
ES459748A1 ES459748A ES459748A ES459748A1 ES 459748 A1 ES459748 A1 ES 459748A1 ES 459748 A ES459748 A ES 459748A ES 459748 A ES459748 A ES 459748A ES 459748 A1 ES459748 A1 ES 459748A1
Authority
ES
Spain
Prior art keywords
fluid
mold cavity
plastic
plastic material
article
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
Application number
ES459748A
Other languages
English (en)
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.)
Union Carbide Corp
Original Assignee
Union Carbide Corp
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 Union Carbide Corp filed Critical Union Carbide Corp
Publication of ES459748A1 publication Critical patent/ES459748A1/es
Expired 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
    • 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
    • B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
    • B29C44/10—Applying counter-pressure during expanding
    • B29C44/105—Applying counter-pressure during expanding the counterpressure being exerted by a fluid
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
    • B29C49/06—Injection blow-moulding
    • 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
    • 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
    • B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
    • B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
    • B29C2049/023—Combined blow-moulding and manufacture of the preform or the parison using inherent heat of the preform, i.e. 1 step blow moulding
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/23—Sheet including cover or casing
    • Y10T428/233—Foamed or expanded material encased
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • Y10T428/24496—Foamed or cellular component
    • Y10T428/24504—Component comprises a polymer [e.g., rubber, etc.]
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24479—Structurally defined web or sheet [e.g., overall dimension, etc.] including variation in thickness
    • Y10T428/24562—Interlaminar spaces
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24744—Longitudinal or transverse tubular cavity or cell
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
    • Y10T428/249987—With nonvoid component of specified composition
    • Y10T428/249988—Of about the same composition as, and adjacent to, the void-containing component
    • Y10T428/249989—Integrally formed skin

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Molding Of Porous Articles (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Abstract

Procedimiento para obtener un artículo de trama estructural plástica moldeada, que comprende las etapas de: (a) pasar material plástico a una cavidad de molde, (b) inyectar fluido de baja viscosidad para puesta a presión, en dicha cavidad de molde, (c) coordinar el caudal de fluido y la presión, el volumen y la relación entre longitud de flujo y espesor de pieza de la cavidad de molde, la viscosidad, elasticidad, densidad y volumen del plástico, la viscosidad y densidad del fluido, y la tensión interfacial fluido-plástico, para hacer que el fluido de puesta a presión penetre en dicho material plástico, y haga que adopte el contorno de dicha cavidad de molde, formando así un artículo de trama estructural moldeada, sin hacer que el fluido de baja viscosidad para puesta a presión se abra paso a través del frente de flujo de material plástico e impida que el material plástico adopte de forma sustancialmente completa el contorno de dicha cavidad de molde, y (d) mantener una presiónpositiva en el molde hasta que dicho artículo sea autosoportante.
ES459748A 1976-07-14 1977-06-14 Procedimiento para obtener un articulo de trama estructural plastica moldeada. Expired ES459748A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/705,101 US4136220A (en) 1976-07-14 1976-07-14 Process for the molding of plastic structural web and the resulting articles

Publications (1)

Publication Number Publication Date
ES459748A1 true ES459748A1 (es) 1978-04-01

Family

ID=24832041

Family Applications (1)

Application Number Title Priority Date Filing Date
ES459748A Expired ES459748A1 (es) 1976-07-14 1977-06-14 Procedimiento para obtener un articulo de trama estructural plastica moldeada.

Country Status (11)

Country Link
US (1) US4136220A (es)
JP (1) JPS539870A (es)
AU (1) AU2690877A (es)
BE (1) BE855664A (es)
CA (1) CA1098273A (es)
DE (1) DE2726787C3 (es)
ES (1) ES459748A1 (es)
FR (1) FR2358250A1 (es)
GB (1) GB1585554A (es)
NL (1) NL7706540A (es)
SE (1) SE7706873L (es)

Families Citing this family (54)

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Publication number Priority date Publication date Assignee Title
JPS54111557A (en) * 1978-02-22 1979-08-31 Asahi Chem Ind Co Ltd Hollow molded article having integrated internal ribs, and method for forming the same
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
NL7806374A (nl) * 1978-06-13 1979-12-17 Stamicarbon Werkwijze en inrichting voor het vervaardigen van voorwerpen van thermoplastisch struktuurschuim.
US4234642A (en) * 1978-12-08 1980-11-18 Union Carbide Corporation Molded plastic structural web articles
JPS58121930U (ja) * 1982-02-12 1983-08-19 株式会社クボタ 屋根構造
US4555225A (en) * 1982-05-24 1985-11-26 Lang Fastener Corporation Apparatus for making a twin-wall, internally corrugated plastic structural part with a smooth non-cellular skin
JPS5916728A (ja) * 1982-07-20 1984-01-27 Kishimoto Sangyo Kk 合成樹脂製品の製造方法
GB2139548B (en) * 1983-05-11 1986-11-19 James Watson Hendry Injection moulding
US4935191A (en) * 1986-10-16 1990-06-19 Thomas W. Johnson Process of insection molding with pressurized gas assist
GB8706204D0 (en) * 1987-03-16 1987-04-23 Peerless Cinpres Ltd Injection moulding apparatus
JPH0788025B2 (ja) * 1987-04-28 1995-09-27 三菱瓦斯化学株式会社 偏肉補強部構造を有する合成樹脂成形品の製造法
US5032345A (en) * 1987-07-09 1991-07-16 Michael Ladney Method of injection molding with pressurized-fluid assist and variable-volume reservoir
US4944910A (en) * 1987-07-09 1990-07-31 Michael Ladney Method of molding thermoplastic material
GB8722620D0 (en) * 1987-09-25 1987-11-04 Cinpres Ltd Injection moulding
DE3734164C3 (de) * 1987-10-09 1999-09-09 Battenfeld Gmbh Verfahren zum Spritzgießen von Formteilen aus thermoplastischen Kunststoffen sowie Vorrichtung zur Durchführung des Verfahrens
US5069859A (en) * 1987-12-16 1991-12-03 Milad Limited Partnership Method of injection molding with pressurized-fluid assist
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
US5098637A (en) * 1988-07-11 1992-03-24 Milad Limited Partnership Process for injection molding and hollow plastic article produced thereby
US5225141A (en) * 1988-07-11 1993-07-06 Milad Limited Partnership Process for injection molding a hollow plastic article
US5015166A (en) * 1988-11-02 1991-05-14 Encore Molding Systems, Inc. Injection molding apparatus for making a hollow object
US5066214A (en) * 1988-11-02 1991-11-19 Encore Molding Systems, Inc. Injection molding apparatus
DE3991547C2 (de) * 1988-12-26 1994-11-03 Asahi Chemical Ind Verfahren und Vorrichtung zum Spritzgießen eines hohlen, geformten Gegenstandes
JPH0735058B2 (ja) * 1989-06-06 1995-04-19 旭化成工業株式会社 中空型物の成形法
CH681503A5 (en) * 1989-10-24 1993-04-15 Lange Int Sa Gas assisted injection moulding of ski boot with hollow sole
DE4102319C2 (de) * 1990-01-30 1994-12-01 Toyoda Gosei Kk Verfahren und Vorrichtung zum Formen hohler Körper
NL9001522A (nl) * 1990-07-04 1992-02-03 Schreiner Luchtvaart Werkwijze voor het vervaardigen van een voorwerp bestaande uit een schuimkern en eventueel een of meer afdeklagen.
FR2666273B1 (fr) * 1990-08-28 1994-05-27 Hutchinson Procede de fabrication de corps creux moules en forme.
US5162092A (en) * 1990-11-29 1992-11-10 Cascade Engineering, Inc. Gas-assisted injection molding with a carpet layer
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
JPH0767716B2 (ja) * 1991-01-14 1995-07-26 新日鐵化学株式会社 熱可塑性樹脂成形品の射出成形法及び射出成形用金型
JP3345038B2 (ja) * 1991-01-28 2002-11-18 松下電器産業株式会社 中空構造部材
WO1992013699A1 (fr) * 1991-01-30 1992-08-20 Asahi Kasei Kogyo Kabushiki Kaisha Moule de moulage par injection-soufflage, procede de moulage par soufflage et moule metallique
JPH0712621B2 (ja) * 1991-01-30 1995-02-15 旭化成工業株式会社 中空射出成形型物、その中空射出成形方法及び金型
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CN112399911B (zh) 2018-06-26 2023-04-07 3M创新有限公司 共挤出制品、模头及其制备方法

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FR1338683A (fr) * 1962-10-27 1963-09-27 Procédé de fabrication, notamment de talons et semelles pour chaussures, ainsi quetalons, semelles et articles chaussants conformes à ceux obtenus à l'aide de ce procédé ou procédé similaire
US3865667A (en) * 1971-10-25 1975-02-11 Ottavio Ferrari Method for the production of sheath containers
US3935358A (en) * 1973-03-29 1976-01-27 E. I. Du Pont De Nemours & Co. Process for preparing a hollow, rib-reinforced laminated structure
JPS5030958A (es) * 1973-07-18 1975-03-27
CH570867A5 (es) * 1973-09-19 1975-12-31 Lo Sfruttamento Di Brevetti Sa
JPS5714968B2 (es) * 1973-10-25 1982-03-27
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JPS514255A (en) * 1974-06-29 1976-01-14 Asahi Dow Ltd Chukubutsupinno seikeihoho
IT1027943B (it) * 1973-12-28 1978-12-20 Asahi Dow Ltd Metodo di produzione di articoli sagonati da materiali di resina sintetica

Also Published As

Publication number Publication date
NL7706540A (nl) 1978-01-17
GB1585554A (en) 1981-03-04
JPS539870A (en) 1978-01-28
US4136220A (en) 1979-01-23
AU2690877A (en) 1979-01-18
DE2726787C3 (de) 1981-05-21
FR2358250A1 (fr) 1978-02-10
DE2726787B2 (de) 1980-09-04
SE7706873L (sv) 1978-01-15
BE855664A (fr) 1977-12-14
DE2726787A1 (de) 1978-01-19
CA1098273A (en) 1981-03-31

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