DE502004004662D1 - PISTON FOR A COLD CHAMBER DIE CASTING MACHINE - Google Patents
PISTON FOR A COLD CHAMBER DIE CASTING MACHINEInfo
- Publication number
- DE502004004662D1 DE502004004662D1 DE502004004662T DE502004004662T DE502004004662D1 DE 502004004662 D1 DE502004004662 D1 DE 502004004662D1 DE 502004004662 T DE502004004662 T DE 502004004662T DE 502004004662 T DE502004004662 T DE 502004004662T DE 502004004662 D1 DE502004004662 D1 DE 502004004662D1
- Authority
- DE
- Germany
- Prior art keywords
- piston
- pressure side
- die casting
- casting machine
- low pressure
- 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 - Fee Related
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
Abstract
The invention relates to a piston (1) for a cold chamber die casting machine, said piston comprising a first part (3) that is to be fixed to a piston rod (9) of the die casting machine, which moves axially in a casting cylinder on the low pressure side, and a second part (11) that is releasably screwed to the first piston part (3)and which forms a front face (15) on the high pressure side. A sealing ring (27) is fixed to the first (3) and/or second (11) piston part at least in an axially overlapping manner. The outer periphery of the separation surface (33) between the first (3) and the second (11) piston parts is axially staggered towards the low pressure side in relation to the edge of the sealing surface of the sealing ring (27) on the high pressure side. Additionally or alternatively, said first piston part (3) has several axial through holes (35) distributed in peripheral direction, through which the second piston part (11) is fixed to the first piston part (3) by means of fastening screws (37). The separation surface (33) and the insertion holes of the through holes (35) are thus arranged on the low pressure side of the piston (1), thereby preventing the molten metal material from penetrating into and solidifying in the screw thread.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE20309181U DE20309181U1 (en) | 2003-06-13 | 2003-06-13 | Multi-part piston for a cold chamber die casting machine |
PCT/EP2004/006321 WO2004110679A1 (en) | 2003-06-13 | 2004-06-11 | Piston for a cold chamber die casting machine |
Publications (1)
Publication Number | Publication Date |
---|---|
DE502004004662D1 true DE502004004662D1 (en) | 2007-09-27 |
Family
ID=33395152
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE20309181U Expired - Lifetime DE20309181U1 (en) | 2003-06-13 | 2003-06-13 | Multi-part piston for a cold chamber die casting machine |
DE502004004662T Expired - Fee Related DE502004004662D1 (en) | 2003-06-13 | 2004-06-11 | PISTON FOR A COLD CHAMBER DIE CASTING MACHINE |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE20309181U Expired - Lifetime DE20309181U1 (en) | 2003-06-13 | 2003-06-13 | Multi-part piston for a cold chamber die casting machine |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1635973B1 (en) |
AT (1) | ATE369929T1 (en) |
DE (2) | DE20309181U1 (en) |
ES (1) | ES2293275T3 (en) |
WO (1) | WO2004110679A1 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005048717A1 (en) * | 2005-10-12 | 2007-04-19 | Allper Ag | Multi-part piston for a cold chamber casting machine |
WO2008123009A1 (en) * | 2007-04-05 | 2008-10-16 | Italpresse Industrie S.P.A. | Sealing device for injection system of die-casting machines |
BRPI0703362A2 (en) * | 2007-08-15 | 2009-03-31 | W Fischer Tecnica Ltda | cast metal injection piston |
DE202010008596U1 (en) | 2010-09-21 | 2010-12-02 | Schmelzmetall (Deutschland) Gmbh | Die-cast pistons |
DE102011052446A1 (en) | 2011-08-05 | 2013-02-07 | Schmelzmetall Ag | Die-cast piston head |
CN106623839B (en) * | 2015-11-03 | 2020-01-14 | 广东科达洁能股份有限公司 | Casting forming machine |
JP7134975B2 (en) * | 2016-12-30 | 2022-09-12 | エクスコ テクノロジーズ リミテッド | Die-casting piston and die-casting device with the same |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3300822A (en) * | 1965-05-03 | 1967-01-31 | Gen Motors Corp | Die casting plunger piston ring |
DE3305594C1 (en) * | 1983-02-18 | 1984-07-19 | Friedrich 8192 Geretsried Glas | Casting piston for die casting machines |
SU1225680A2 (en) * | 1984-11-06 | 1986-04-23 | Yagin Vasilij P | Pressing plunger of die=casting machine |
JPH0246961A (en) * | 1988-08-04 | 1990-02-16 | Hitachi Metals Ltd | Plunger tip |
EP0525229B1 (en) * | 1991-07-29 | 1996-11-06 | Allper Ag | Piston, especially for pushing out liquid metal from a pouring cylinder |
EP0901852B1 (en) * | 1997-09-09 | 2002-07-17 | André Müller | Plunger for a hot-chamber die-casting machine |
JP3793646B2 (en) * | 1998-07-17 | 2006-07-05 | 修 山本 | Die-casting machine plunger device and die-casting machine |
DE50210331D1 (en) * | 2002-03-04 | 2007-07-26 | Allper Ag | SEALING AND PISTON FOR A PRESSURE CYLINDER |
-
2003
- 2003-06-13 DE DE20309181U patent/DE20309181U1/en not_active Expired - Lifetime
-
2004
- 2004-06-11 ES ES04739812T patent/ES2293275T3/en active Active
- 2004-06-11 WO PCT/EP2004/006321 patent/WO2004110679A1/en active IP Right Grant
- 2004-06-11 EP EP04739812A patent/EP1635973B1/en not_active Not-in-force
- 2004-06-11 DE DE502004004662T patent/DE502004004662D1/en not_active Expired - Fee Related
- 2004-06-11 AT AT04739812T patent/ATE369929T1/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
EP1635973B1 (en) | 2007-08-15 |
DE20309181U1 (en) | 2004-10-28 |
WO2004110679A1 (en) | 2004-12-23 |
ES2293275T3 (en) | 2008-03-16 |
EP1635973A1 (en) | 2006-03-22 |
ATE369929T1 (en) | 2007-09-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |