EP0095513A1 - Procédé de coulée sous pression de type vertical - Google Patents

Procédé de coulée sous pression de type vertical Download PDF

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Publication number
EP0095513A1
EP0095513A1 EP82104661A EP82104661A EP0095513A1 EP 0095513 A1 EP0095513 A1 EP 0095513A1 EP 82104661 A EP82104661 A EP 82104661A EP 82104661 A EP82104661 A EP 82104661A EP 0095513 A1 EP0095513 A1 EP 0095513A1
Authority
EP
European Patent Office
Prior art keywords
melt
gates
cavities
plunger tip
tip
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
EP82104661A
Other languages
German (de)
English (en)
Other versions
EP0095513B1 (fr
Inventor
Toshika Masaoka
Atsushi Ota
Masaaki Tokui
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.)
Toyota Motor Corp
Original Assignee
Toyota Motor 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 Toyota Motor Corp filed Critical Toyota Motor Corp
Priority to DE8282104661T priority Critical patent/DE3272131D1/de
Priority to EP82104661A priority patent/EP0095513B1/fr
Publication of EP0095513A1 publication Critical patent/EP0095513A1/fr
Application granted granted Critical
Publication of EP0095513B1 publication Critical patent/EP0095513B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/08—Cold chamber machines, i.e. with unheated press chamber into which molten metal is ladled
    • B22D17/12—Cold chamber machines, i.e. with unheated press chamber into which molten metal is ladled with vertical press motion

Definitions

  • the present invention relates to a vertical type pressure casting method used for accurately casting aluminum alloy products, comprising the steps of closing gates communicating with the cavities of clamped molds with a counter-tip, pouring melt into the portion of the interior of a sleeve which is between the counter-tip and a lifted plunger tip, displacing the counter-tip to open the gates and allow the melt to flow into the cavities by the force of gravity, and thereafter pressure-filling the cavities with the melt using the plunger tip, and more particularly to a vertical type pressure casting method comprising the steps of first lowering a plunger tip, subsequently displacing a counter-tip before the plunger tip reaches the melt in the sleeve to open the gates to the cavities and allow the melt to flow into the cavities by the force of gravity, and thereafter pressurizing the melt to fill the cavities, the melt being thus injected into the cavities calmly and continuously at a low rate to prevent gas from being sucked therein, the cross-sectional area of the gates being set so that the ratio of the volume
  • the speed, at which the plunger tip moves down is set to a level between the upper limit level in an upper limit speed curve R 1 , above which the plunger tip 9 moves down too fast and reaches the upper surface of the melt 15 in the sleeve 5 to start the pressure-filling operation before the gates 4 have been opened by the counter tip 7, and a lower limit level in a lower limit speed curve R 2 , above which the plunger tip 9 reaches the upper surface of the melt 15 in the sleeve 5 after the gates 4 have been fully opened by the counter tip 7 allowing the melt 15 to flow into the cavities by the force of gravity until the flow of melt has stopped, whereby the melt 15 can be fed to the cavities calmly and continuously at a low rate.
  • the percentage of the melt to be fed into the cavities by the force of gravity before the plunger tip 9 reaches the upper surface of the melt 15 in the sleeve 5 is set to 20-70, and the speed of the melt through the gates during the feeding of the melt to the cavities by the force of gravity to not less than 0.1 m/sec with the speed of the melt through the gates when pressure-filling the cavities using the plunger tip 9 set to 0.4-0.8 m/sec.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
EP82104661A 1982-05-27 1982-05-27 Procédé de coulée sous pression de type vertical Expired EP0095513B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE8282104661T DE3272131D1 (en) 1982-05-27 1982-05-27 Vertical type pressure casting method
EP82104661A EP0095513B1 (fr) 1982-05-27 1982-05-27 Procédé de coulée sous pression de type vertical

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP82104661A EP0095513B1 (fr) 1982-05-27 1982-05-27 Procédé de coulée sous pression de type vertical

Publications (2)

Publication Number Publication Date
EP0095513A1 true EP0095513A1 (fr) 1983-12-07
EP0095513B1 EP0095513B1 (fr) 1986-07-23

Family

ID=8189057

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82104661A Expired EP0095513B1 (fr) 1982-05-27 1982-05-27 Procédé de coulée sous pression de type vertical

Country Status (2)

Country Link
EP (1) EP0095513B1 (fr)
DE (1) DE3272131D1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994002271A1 (fr) * 1992-07-23 1994-02-03 Hi-Tec Metals Limited Dispositif de moulage
GB2283445A (en) * 1992-07-23 1995-05-10 Hi Tec Metals Ltd A moulding device
GB2286786A (en) * 1994-02-18 1995-08-30 New Pro Foundries Limited Metal composite casting
AU665015B2 (en) * 1992-07-23 1995-12-14 Papervision Limited A moulding device
GB2299534B (en) * 1994-02-18 1998-04-22 New Pro Foundries Limited Metal composite casting method
ES2774396A1 (es) * 2020-02-28 2020-07-20 Diepress Tech S L U Equipo de inyeccion para la fabricacion de piezas metalicas en molde y proceso de inyeccion para dicha fabricacion

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2705607A1 (de) * 1977-02-10 1979-01-04 Ube Industries Vertikale druckgussmaschine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2705607A1 (de) * 1977-02-10 1979-01-04 Ube Industries Vertikale druckgussmaschine

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994002271A1 (fr) * 1992-07-23 1994-02-03 Hi-Tec Metals Limited Dispositif de moulage
GB2283445A (en) * 1992-07-23 1995-05-10 Hi Tec Metals Ltd A moulding device
AU665015B2 (en) * 1992-07-23 1995-12-14 Papervision Limited A moulding device
GB2283445B (en) * 1992-07-23 1996-03-06 Hi Tec Metals Ltd A moulding device
US5611387A (en) * 1992-07-23 1997-03-18 Hi-Tec Metals Limited Moulding device
GB2286786A (en) * 1994-02-18 1995-08-30 New Pro Foundries Limited Metal composite casting
GB2299534B (en) * 1994-02-18 1998-04-22 New Pro Foundries Limited Metal composite casting method
ES2774396A1 (es) * 2020-02-28 2020-07-20 Diepress Tech S L U Equipo de inyeccion para la fabricacion de piezas metalicas en molde y proceso de inyeccion para dicha fabricacion
WO2021170894A1 (fr) * 2020-02-28 2021-09-02 Diepress Tech S.L.U. Équipement d'injection pour la fabrication de pièces métalliques en moule et procédé d'injection pour ladite fabrication

Also Published As

Publication number Publication date
DE3272131D1 (en) 1986-08-28
EP0095513B1 (fr) 1986-07-23

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