[go: up one dir, main page]

WO1997037822A1 - Outil de formage - Google Patents

Outil de formage Download PDF

Info

Publication number
WO1997037822A1
WO1997037822A1 PCT/DE1997/000594 DE9700594W WO9737822A1 WO 1997037822 A1 WO1997037822 A1 WO 1997037822A1 DE 9700594 W DE9700594 W DE 9700594W WO 9737822 A1 WO9737822 A1 WO 9737822A1
Authority
WO
WIPO (PCT)
Prior art keywords
gas
molding tool
inlet opening
cooling
distance
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.)
Ceased
Application number
PCT/DE1997/000594
Other languages
German (de)
English (en)
Inventor
Karl-Heinz Rosenthal
Carsten Wolansky
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.)
Bielsteiner Verschlubtechnik GmbH
Original Assignee
Bielsteiner Verschlubtechnik GmbH
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 Bielsteiner Verschlubtechnik GmbH filed Critical Bielsteiner Verschlubtechnik GmbH
Publication of WO1997037822A1 publication Critical patent/WO1997037822A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/02—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means
    • B29C33/04—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means using liquids, gas or steam
    • B29C33/046—Moulds or cores; Details thereof or accessories therefor with incorporated heating or cooling means using liquids, gas or steam using gas
    • 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
    • B29C33/00—Moulds or cores; Details thereof or accessories therefor
    • B29C33/38—Moulds or cores; Details thereof or accessories therefor characterised by the material or the manufacturing process
    • B29C33/3814—Porous moulds
    • 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
    • B29C45/72—Heating or cooling
    • B29C45/73—Heating or cooling of the mould
    • B29C45/7337—Heating or cooling of the mould using gas or steam

Definitions

  • the cooling gas flows out of the mold via the gas discharge device. Since the cooling gas always strives to take the path of least resistance and the distance between each point of the evaporation surface and the gas inlet opening is greater than the distance between the point of the gas inlet opening and the cooling surface closest to the cooling surface, no cooling gas can penetrate into the mold chamber through the cooling surface.
  • the flow of the cooling gas within the mold can be regulated by suitable arrangement of the gas inlet opening, so that a uniform temperature field is created within the mold in this way.
  • each tube has a corresponding material accumulation, which is preferably uniform, so that the distance from the evaporation surface to the corresponding gas inlet opening of the tube is always the same.
  • the steel cavity 1 consists entirely of a porous sintered steel, in the upper end of which an expansion chamber 3 is formed.
  • the expansion chamber is closed gas-tight at the top with the cover 4.
  • a sealing ring 5 is inserted in a circular annular groove 6 of the lid 4 between the steel cavity 1 and the lid 4 on the upper, horizontally extending contact surface of the steel cavity.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

L'invention concerne un outil formage servant à mouler des matériaux plastiques, s'utilisant notamment dans des machines automatiques de moulage par injection pour polymères synthétiques ou non synthétiques. Cet outil comporte au moins une paroi de séparation (9) perméable aux gaz qui sépare une chambre d'expansion (3) servant à vaporiser des gaz liquéfiés pour refroidir l'outil de formage, d'une chambre de moulage (10). Cette paroi de séparation (9) présente une surface de vaporisation (11) qui fait face à la chambre d'expansion (3) et une surface de refroidissement (12) qui fait face à la chambre de moulage. Afin d'obtenir un champ uniforme des températures sur la surface de refroidissement (12) et de réguler le flux du gaz de refroidissement dans l'outil de formage, il est prévu que la paroi de séparation (9) comporte un dispositif d'évacuation des gaz (2) avec au moins un orifice d'entrée de gaz (15) à travers lequel le gaz vaporisé dans la chambre d'expansion (3) et pénétrant à travers le matériau poreux peut être évacué. La distance X par rapport à chaque point de la surface de vaporisation (11) et de l'orifice d'entrée des gaz (15) est inférieure à l'épaisseur Y de la paroi de séparation (9) et la distance X entre chaque point de la surface de vaporisation (11) et l'orifice d'entrée des gaz (15) est supérieure à la distance Z entre le point de l'orifice d'entrée des gaz (15), le plus proche de la surface de refroidissement (12) et ladite surface de refroidissement (12).
PCT/DE1997/000594 1996-04-04 1997-03-21 Outil de formage Ceased WO1997037822A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1996113558 DE19613558A1 (de) 1996-04-04 1996-04-04 Formwerkzeug
DE19613558.3 1996-04-04

Publications (1)

Publication Number Publication Date
WO1997037822A1 true WO1997037822A1 (fr) 1997-10-16

Family

ID=7790508

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1997/000594 Ceased WO1997037822A1 (fr) 1996-04-04 1997-03-21 Outil de formage

Country Status (2)

Country Link
DE (1) DE19613558A1 (fr)
WO (1) WO1997037822A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100366410C (zh) * 1998-06-11 2008-02-06 里坦普控股有限公司 温度控制方法和装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3743809A1 (de) * 1987-07-02 1989-01-19 Ktx Co Ltd Poroeses formwerkzeug und ein verfahren zum formen eines synthetischen harzes unter verwendung desselben
WO1992015439A1 (fr) * 1991-03-05 1992-09-17 Toolvac Engineering Ab Methode de realisation du revenu d'un outil de moulage

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3743809A1 (de) * 1987-07-02 1989-01-19 Ktx Co Ltd Poroeses formwerkzeug und ein verfahren zum formen eines synthetischen harzes unter verwendung desselben
WO1992015439A1 (fr) * 1991-03-05 1992-09-17 Toolvac Engineering Ab Methode de realisation du revenu d'un outil de moulage

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100366410C (zh) * 1998-06-11 2008-02-06 里坦普控股有限公司 温度控制方法和装置

Also Published As

Publication number Publication date
DE19613558A1 (de) 1997-10-09

Similar Documents

Publication Publication Date Title
DE68908177T2 (de) Flüssigkeitsverteiler und flüssigkeitsbehandlungsvorrichtung sowie ein mit einem solchen verteiler versehener chromatograph.
EP2448697B1 (fr) Moule de coulée à dispositif de tirage d'air
DE69632221T2 (de) Zweistoffdüse, insbesondere für ein Sprühwerkzeug einer Formsprühvorrichtung und auswechselbare Anordnung für diese Düsen
DE1097662B (de) Vorrichtung zum Herstellen von Hohlkoerpern aus thermoplastischem Kunststoff nach der Methode des Aufblasens eines Vorformlings
CH626563A5 (fr)
DE2510804A1 (de) Vorrichtung zur herstellung von extrudierten schlauchfoermigen thermoplastischen kunststoffilmen
DE2201519A1 (de) Verfahren und Vorrichtung zum Schmelzspinnen
WO1997037822A1 (fr) Outil de formage
DE3541768C2 (de) Verfahren zur Herstellung von Kunststoff-Formteilen mit an- oder eingeformten gummielastischen Teilen
DE1905229A1 (de) Einrichtungen mit einem eine Vielzahl von Durchlaessen aufweisenden Lochkoerper
DE3152917T1 (de) Metallgiessform und entlueftungsvorrichtung dafuer
EP0160840B1 (fr) Séparateur de phase d'hélium-II
DE3047621A1 (de) "formeinlass, der die einleitung einer steifen formmasse in einen formraum zulaesst"
DE2342957A1 (de) Verfahren zum diskontinuierlichen herstellen von mehrschicht-formteilen aus thermoplastischem kunststoff
EP2045065B1 (fr) Moule de moulage par injection destiné à être utilisé dans un dispositif de moulage par injection
EP1518619A1 (fr) Aube de turbine de moteur d'avion et moule de fonderie pour sa manufacture
EP0387470A1 (fr) Dispositif pour le filage de matières thermoplastiques fondues
EP0195211B1 (fr) Dispositif pour le filtrage de bains métalliques
DE1812078A1 (de) Kuehlring fuer Folienblasvorrichtung od.dgl.
DE19913119B4 (de) Verfahren zur Herstellung einer Sandform
DE19955227A1 (de) Texturierdüse
EP0910445B1 (fr) Distributeur de liquide pour colonne echangeuse de substances
DE151209C (fr)
DE19713281A1 (de) Blaskopf
DE3621740A1 (de) Pressform zur herstellung von ringfoermigen polymeren erzeugnissen

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE

121 Ep: the epo has been informed by wipo that ep was designated in this application
122 Ep: pct application non-entry in european phase