GB1361038A - Die-casting machine and method - Google Patents

Die-casting machine and method

Info

Publication number
GB1361038A
GB1361038A GB5222171A GB5222171A GB1361038A GB 1361038 A GB1361038 A GB 1361038A GB 5222171 A GB5222171 A GB 5222171A GB 5222171 A GB5222171 A GB 5222171A GB 1361038 A GB1361038 A GB 1361038A
Authority
GB
United Kingdom
Prior art keywords
piston
pressure
valve
chamber
reservoir
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
GB5222171A
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.)
Idra Pressen GmbH
Original Assignee
Idra Pressen 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 Idra Pressen GmbH filed Critical Idra Pressen GmbH
Publication of GB1361038A publication Critical patent/GB1361038A/en
Expired legal-status Critical Current

Links

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
    • B22D17/20—Accessories: Details
    • B22D17/32—Controlling equipment

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Forging (AREA)
  • Control Of Presses (AREA)
  • Fluid-Pressure Circuits (AREA)

Abstract

1361038 Pressure casting machines IDRA-PRESSEN GmbH 10 Nov 1971 [26 Nov 1970] 52221/71 Heading B3F In a method of pressure diecasting in which pressure is applied to the press piston 2 in three phases, the initiation of the intensified pressure applied to the press piston during the third phase is effected in dependence on the position of said press piston. The machine has a multiplier piston 5 movable in a cylinder 4, the chamber 7 formed in front of the piston 5 being connected to a pressure reservoir 8 via a valve 9. A second pressure reservoir 18 is connected to a chamber 16 which is opened or shut off in relation to the piston 5 by a valve having a closure piece 19. With a reversing valve 21 in the position shown, the pressures in the chambers 16, 32 and 33 are equal and the closure members 19 and 11 are maintained in their closed positions. After a first, slow movement of the press piston 2, the valve 21 is actuated by the press piston or by the rod 3 linking it to the injection piston. This causes the chamber 32 to be connected to a line 35 leading to a tank 34 so that atmospheric pressure now prevails in the chamber 32. This allows the member 19 to move to its open position thus causing the pressure in the reservoir 18 to be applied to the piston 5. An bydraulically operated time delay device 27 may be located in the line leading from the chamber 33 to the tank 35. The operation of this is initiated on the actuation of the reversing valve 21. After the valve 23 of said time delay device has moved from the position shown, the chamber 33 is open to atmospheric pressure and the valve 9 opens, thus allowing the fluid in the chamber 7 to pass to the reservoir 8 and the piston 5 to move to the left under the influence of the pressure of the fluid from the reservoir 18. This constitutes the third phase in the injection process and is arranged to take place after the mould has been filled with metal. The second phase begins on reversal of the valve 21 and is brought about by means not disclosed.
GB5222171A 1970-11-26 1971-11-10 Die-casting machine and method Expired GB1361038A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702058112 DE2058112C3 (en) 1970-11-26 1970-11-26 Method and device for controlling the connection of the multiplier to the plunger on multiplier die casting machines

Publications (1)

Publication Number Publication Date
GB1361038A true GB1361038A (en) 1974-07-24

Family

ID=5789140

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5222171A Expired GB1361038A (en) 1970-11-26 1971-11-10 Die-casting machine and method

Country Status (8)

Country Link
AU (1) AU462146B2 (en)
DE (1) DE2058112C3 (en)
DK (1) DK127959B (en)
FI (1) FI51777C (en)
FR (1) FR2115236B1 (en)
GB (1) GB1361038A (en)
IT (1) IT941284B (en)
SE (1) SE383840B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2491792A1 (en) * 1980-10-14 1982-04-16 Harvill John PRESSURE CASTING MACHINE WITH HOT CHAMBER AND HORIZONTAL LOADING MECHANISM

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2922914A1 (en) * 1979-06-06 1980-12-11 Oskar Frech Werkzeugbau Gmbh & METHOD AND ARRANGEMENT FOR CONTROLLING THE INPRESSION PROCESS IN COLD CHAMBER DIE CASTING MACHINES
DE3132909A1 (en) * 1981-08-20 1983-03-03 Hans-Gebhard Krines "VALVE DEVICE, IN PARTICULAR FOR DIE CASTING MACHINES
US4519572A (en) * 1982-08-18 1985-05-28 Vickers, Incorporated Valve device, especially for die casting machines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2491792A1 (en) * 1980-10-14 1982-04-16 Harvill John PRESSURE CASTING MACHINE WITH HOT CHAMBER AND HORIZONTAL LOADING MECHANISM

Also Published As

Publication number Publication date
IT941284B (en) 1973-03-01
DE2058112C3 (en) 1979-10-31
DE2058112B2 (en) 1978-09-21
SE383840B (en) 1976-04-05
DE2058112A1 (en) 1972-05-31
AU462146B2 (en) 1975-05-29
FI51777C (en) 1977-04-12
FR2115236A1 (en) 1972-07-07
FI51777B (en) 1976-12-31
DK127959B (en) 1974-02-11
AU3577071A (en) 1973-05-24
FR2115236B1 (en) 1975-10-10

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee