ATE364464T1 - SEALING RING AND PISTON FOR A DIE CASTING CYLINDER - Google Patents

SEALING RING AND PISTON FOR A DIE CASTING CYLINDER

Info

Publication number
ATE364464T1
ATE364464T1 AT02727355T AT02727355T ATE364464T1 AT E364464 T1 ATE364464 T1 AT E364464T1 AT 02727355 T AT02727355 T AT 02727355T AT 02727355 T AT02727355 T AT 02727355T AT E364464 T1 ATE364464 T1 AT E364464T1
Authority
AT
Austria
Prior art keywords
sealing ring
plunger
pressure chamber
casting cylinder
plunger base
Prior art date
Application number
AT02727355T
Other languages
German (de)
Inventor
Andre Mueller
Original Assignee
Allper Ag
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 Allper Ag filed Critical Allper Ag
Application granted granted Critical
Publication of ATE364464T1 publication Critical patent/ATE364464T1/en

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
    • B22D17/2015—Means for forcing the molten metal into the die
    • B22D17/203—Injection pistons

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
  • Forging (AREA)
  • Sealing Devices (AREA)

Abstract

The invention relates to a plunger for a cold chamber diecasting machine in whose casting cylinder (3) the plunger (1) defines a pressure chamber (5) for the molten metal in an axially displaceable manner. The plunger (1) has a plunger base (7) and a sealing ring (17) that is fixed in the range of the pressure chamber-side plunger front in an outer annular recess (19) of the plunger base (7). The plunger base (7) axially projects beyond the sealing ring on the pressure chamber side and radially extends on the pressure chamber side across the sealing ring across a part of its radial thickness. The plunger base (7) can be cooled at least in the area of its plunger front (15). The sealing ring (17) is movably disposed with a radial and axial play in the annular recess (19). A projection (43) of the plunger base (7) that radially extends across the sealing ring (17) defines with its outer peripheral surface (46) an annular gap (47) between itself and the casting cylinder, said annular gap being cooled to solidification temperature during casting. The melt that solidifies in the annular gap (47) additionally seals the sealing ring (17) and prevents the melt from reaching the play of the sealing ring (17) or getting between the sealing ring (17) and the casting cylinder (3), thereby reducing wear of the sealing ring (17).
AT02727355T 2002-03-04 2002-03-04 SEALING RING AND PISTON FOR A DIE CASTING CYLINDER ATE364464T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2002/002356 WO2003074214A1 (en) 2002-03-04 2002-03-04 Sealing ring and piston for a pressure die casting cylinder

Publications (1)

Publication Number Publication Date
ATE364464T1 true ATE364464T1 (en) 2007-07-15

Family

ID=27771816

Family Applications (1)

Application Number Title Priority Date Filing Date
AT02727355T ATE364464T1 (en) 2002-03-04 2002-03-04 SEALING RING AND PISTON FOR A DIE CASTING CYLINDER

Country Status (6)

Country Link
EP (2) EP1483074B1 (en)
AT (1) ATE364464T1 (en)
AU (2) AU2002257612A1 (en)
DE (1) DE50210331D1 (en)
ES (1) ES2287274T3 (en)
WO (2) WO2003074214A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20309181U1 (en) * 2003-06-13 2004-10-28 Allper Ag Multi-part piston for a cold chamber die casting machine
DE102005048717A1 (en) 2005-10-12 2007-04-19 Allper Ag Multi-part piston for a cold chamber casting machine
ITBS20060087A1 (en) * 2006-04-12 2007-10-13 Copromec S R L PISTON FOR COLD ROOM DIE CASTING MACHINES
BRPI0703362A2 (en) * 2007-08-15 2009-03-31 W Fischer Tecnica Ltda cast metal injection piston
IT1393330B1 (en) * 2009-01-21 2012-04-20 Brondolin S P A PISTONS FOR DIE CASTING
IT1393329B1 (en) * 2009-01-21 2012-04-20 Brondolin S P A PISTON AND SEALING RING FOR DIE CASTING
DE102009057197B3 (en) 2009-11-30 2011-05-19 Oskar Frech Gmbh + Co. Kg Casting unit for a die casting machine
DE102011052446A1 (en) 2011-08-05 2013-02-07 Schmelzmetall Ag Die-cast piston head
TW201501838A (en) 2013-04-04 2015-01-16 Gani Murselaj Piston for metal die casting
DE102014018795A1 (en) * 2014-12-19 2016-06-23 Gebr. Krallmann Gmbh Delivery device for a molten metal in an injection molding unit
SG10201609578XA (en) * 2016-08-29 2018-03-28 Copromec Die Casting S R L A Socio Unico Piston for a die-casting machine

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1080739B (en) * 1957-11-16 1960-04-28 Friedr Fingscheidt G M B H Pistons for die casting machines
US4899804A (en) * 1989-02-21 1990-02-13 Hammerer Norman L Plunger tip for cold chamber die cast machine
ES2102354T3 (en) * 1989-10-18 1997-08-01 Allper Ag PISTON, FOR A LOW PRESSURE CASTING DEVICE.
EP0525229B1 (en) * 1991-07-29 1996-11-06 Allper Ag Piston, especially for pushing out liquid metal from a pouring cylinder
JP2517509B2 (en) * 1992-01-30 1996-07-24 日本軽金属株式会社 Hot chamber-plunger for die casting machine injection
IT250574Y1 (en) * 2000-10-13 2003-09-24 Copromec S R L COLD CHAMBER PISTON FOR DIE CASTING

Also Published As

Publication number Publication date
WO2003074211A3 (en) 2004-06-10
WO2003074211A2 (en) 2003-09-12
AU2002358495A8 (en) 2003-09-16
AU2002358495A1 (en) 2003-09-16
AU2002257612A1 (en) 2003-09-16
EP1483074B1 (en) 2007-06-13
EP1483075A2 (en) 2004-12-08
EP1483074A1 (en) 2004-12-08
DE50210331D1 (en) 2007-07-26
ES2287274T3 (en) 2007-12-16
WO2003074214A1 (en) 2003-09-12

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Legal Events

Date Code Title Description
REN Ceased due to non-payment of the annual fee