EP1405685A1 - Chambre de coulée pour la coulée sous pression de métaux - Google Patents

Chambre de coulée pour la coulée sous pression de métaux Download PDF

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Publication number
EP1405685A1
EP1405685A1 EP03021456A EP03021456A EP1405685A1 EP 1405685 A1 EP1405685 A1 EP 1405685A1 EP 03021456 A EP03021456 A EP 03021456A EP 03021456 A EP03021456 A EP 03021456A EP 1405685 A1 EP1405685 A1 EP 1405685A1
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EP
European Patent Office
Prior art keywords
casting
jacket body
casting chamber
ceramic
casting material
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
EP03021456A
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German (de)
English (en)
Inventor
F. Ortmann Ulrich
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.)
Ortmann Druckgiesstechnik GmbH
Original Assignee
Ortmann Druckgiesstechnik 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 Ortmann Druckgiesstechnik GmbH filed Critical Ortmann Druckgiesstechnik GmbH
Publication of EP1405685A1 publication Critical patent/EP1405685A1/fr
Ceased 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
    • B22D17/20—Accessories: Details
    • B22D17/2015—Means for forcing the molten metal into the die
    • B22D17/2023—Nozzles or shot sleeves

Definitions

  • the invention relates to a horizontal casting chamber for die casting of metal with a metallic jacket body, which has a casting material filling opening at its machine-side end and one at its mold end Has molding material outlet opening. Furthermore concerns the invention a vertical casting chamber for die casting of metal with one upright in operation metallic jacket body, in the lower machine side Engages at the end of a piston and at its upper, Mold-side end of a casting material filling and casting material outlet opening is provided. Also concerns the Invention a use of interchangeable ceramic segments.
  • Casting chambers of the type mentioned above are in the first Line in die casting machines for die casting metals such as aluminum, magnesium and brass.
  • there horizontal casting chambers are used on the one hand used horizontally in operation and at one end on the machine side one on the top Casting material filling opening and on its other, mold-side End have a casting material outlet opening (DE-A 199 08 392).
  • so-called vertical Casting chambers used that stand upright in operation, in this case the piston into the casting chamber from below forth and at the top of the casting chamber an opening is provided through which the material is poured in and poured out.
  • the casting chambers are sometimes high thermal and exposed to mechanical loads. So be especially with horizontal casting chambers during the Filling process depending on the metal to be cast or the metal alloy to be cast below the filler openings Temperatures of well over 600 ° C achieved. At this temperature, iron atoms can surface diffuse the casting chamber, causing the surface becomes brittle and flakes off, so that washouts occur.
  • the strongest during the filling process of the casting material by washing out through the casting material The area of the inner surface of the jacket body depends on the type the casting chamber. In the case of a horizontal casting chamber is in the manner described opposite the filling opening Area of the inner surface of the jacket body most stressed while vertical Casting chamber in the longitudinal direction or in the area of the machine Middle section of the Jacket body inner wall through the hot casting material on strongest thermal stress. Furthermore kick during the pressing process next to the hot molding material caused high temperatures in particular Area of the mold-side end of the casting chamber when pressed together high pressures of the material.
  • the object of the invention is therefore, the casting chambers of the beginning mentioned type so that they are comparatively have a long service life.
  • This object is according to the invention in a horizontal casting chamber solved in that the inner surface of the jacket body at its the pouring material filling opening in the circumferential direction of the jacket body opposite portion and / or at the one surrounding the casting material outlet opening Provide partial area with at least one ceramic segment is to make local contact between the metal material to prevent the jacket body and the casting material.
  • the task is with a vertical casting chamber solved in that a in the longitudinal direction of the jacket body on the machine side or in the middle Partial area of the inner surface of the casing with at least a ceramic segment is provided to in the partial area locally contact between the metal material of the jacket body and to prevent the hot molding material.
  • the invention is therefore based on the consideration, those Areas of the casting chambers, which to a large extent thermal and / or mechanical stress during operation exposed to the hot cast material Protect ceramic segments that have high temperature resistance have and much more resistant to leaching are as the metal material of the shell body. It It has been shown that the use of ceramic segments the lifespan of the casting chambers many times over Can be extended so that downtime is low are.
  • the inner surface of the jacket body in the affected areas directly with a ceramic material to coat.
  • ceramic segments in the form of Wear rings or wear sleeves used the are shrunk into the casing. These wear sleeves can be replaced if necessary, what a high profitability of the casting chamber provides.
  • the wear bushes expediently point a wall thickness of> 2 to about 20 mm. This ensures on the one hand the required mechanical stability and on the other hand a sufficient service life.
  • Ceramic materials of all kinds can be used as the material for the ceramic segments.
  • oxide ceramic materials are preferred. These are polycrystalline, silica-free materials made of pure oxides or oxide compounds, to which sintering aids or stabilizers have been added in order to facilitate production or to achieve certain properties.
  • the oxide ceramic is manufactured according to ceramic methods and differs from the conventional silicate ceramic, in which silica is the essential material component. With the exception of SiO 2 , oxide ceramics include all solid oxides and oxide compounds that can be sintered without decomposition. The most commonly used oxide is Al 2 O 3 (sintered corundum) in addition to the following oxides: BeO, MgO, ZrO 2 and MgAl 2 O 4 (spinel).
  • Oxide-ceramic materials made from ferrites, titanites, yttrium, thorium and uranium oxides are possible. Extrusion, casting with subsequent sintering, powder metallurgy methods and flame spraying are suitable for the production of oxide ceramics.
  • the oxide ceramic materials used according to the invention are generally resistant to thermal changes, temperature-resistant, impact resistant, tough, tough and chemical resistant to molten metal.
  • Oxide systems are particularly suitable, which on zirconium oxide, zirconium corundum, spinel, zirconium silicate and / or aluminum titanate based. plasma sprayed Oxide ceramics have become the high temperature resistance, good chemical resistance, easy workability, insensitivity to surface damage and especially because of the high abrasion resistance proven.
  • FIGS. 1 to 3 Various embodiments are shown in FIGS. 1 to 3 a casting chamber according to the present invention shown as in die casting machines for die casting of metals such as aluminum, magnesium or brass can be used.
  • the jacket body 3 which consists of steel, has a casting material filling opening at its machine end 2 5, through which in the interior the casting chamber liquid or solidified (with thixocasting) Material can be inserted or inserted, and at the other mold-side end 1 of the casting chamber an outlet opening 12 is provided. Furthermore, intervenes in the end 2 of the casting chamber on the machine side is a piston 4 one that is movable in the direction of the mold-side end 1 is the metal material filled into the casting chamber through the outlet opening 12 under pressure into a mold contribute.
  • the gun chamber inner wall locally in those areas that operate in particular Dimensions of thermal and / or mechanical loads are exposed to wear.
  • a wear sleeve 6 made of a ceramic material is used, which is flush with the inner wall of the jacket body.
  • the wear sleeve 6 is in the jacket body 3 attached by a shrink fit and additionally by a retaining ring 7 which, like the casing body 3, is made of steel exists, secured.
  • a wear ring 8 is used, the inside also is flush with the inner surface of the jacket body and shrunk into the jacket body 3.
  • the temperature and wear resistant ceramic material of the Wear sleeve 6 and the wear ring 8 prevented direct contact between the hot molding material and the metal material of the jacket body 3 locally the part area opposite the filling opening 5, where the casting material meets the inner wall of the jacket body which is why there is usually too much washing out comes, and the wear ring 8 at the mold end 1 protects the jacket body 3 from the high occurring there Pressures and associated higher temperatures of the casting material.
  • the casting chamber can also be made in several parts.
  • the jacket body 3 for example, axially into a casting material outlet opening 12 having base body 9 and the steels having the casting material filling opening 5 Interchangeable sleeve 10 divided. The latter is inside with a wear sleeve 6 into which the piston 4th intervenes.
  • FIG of the present invention shown in operation is used upright.
  • this casting chamber intervenes from the machine side below Piston 4 a, and the open top of the jacket body 3 simultaneously forms the casting material filling opening 5 and the casting material outlet opening 12 of the casting chamber.
  • this vertical casting chamber is the sub-area the inner surface of the jacket body, to the greatest extent thermal and mechanical stresses during operation is subject to a wear sleeve 13 made of a ceramic material protected.
  • This wear sleeve 13 is in a recess on the inside of the casing body 3 inserted from the machine side 2 and in the longitudinal direction of the jacket body 3 viewed approximately in the central region of the jacket body 3 positioned.
  • the wear sleeve 6 is also shrunk in the jacket body 3 and closes with its inner edge flush with the inner wall of the jacket body from.
  • a pressure bushing 11 is provided, which the wear sleeve 13 against a paragraph of the metal body 3 presses to position them axially, and which further a guide for the piston 4 forms.
  • the wear sleeve 13 In the vertical casting chamber, the wear sleeve 13 the central part of the casting chamber is protected, because there when pouring the casting material from the above cast material filler opening 5 ago Casting material in contact with the inner wall of the jacket body comes, which is why this section is the most wear is subject.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
EP03021456A 2002-09-25 2003-09-23 Chambre de coulée pour la coulée sous pression de métaux Ceased EP1405685A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20214882U DE20214882U1 (de) 2002-09-25 2002-09-25 Gießkammer für das Druckgießen von Metallen
DE20214882U 2002-09-25

Publications (1)

Publication Number Publication Date
EP1405685A1 true EP1405685A1 (fr) 2004-04-07

Family

ID=7975463

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03021456A Ceased EP1405685A1 (fr) 2002-09-25 2003-09-23 Chambre de coulée pour la coulée sous pression de métaux

Country Status (2)

Country Link
EP (1) EP1405685A1 (fr)
DE (1) DE20214882U1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006089442A1 (fr) * 2005-02-28 2006-08-31 Bühler Druckguss AG Chambre de coulee
CN100381231C (zh) * 2006-06-23 2008-04-16 兰州理工大学 金属半固态锭料连续输送加热装置
EP2620238A1 (fr) * 2012-01-26 2013-07-31 Bühler AG Chambre de coulée pour machine de coulée sous pression
DE102014009565A1 (de) * 2014-06-27 2015-12-31 Wieland-Werke Ag Füllkammer für eine Druckgießmaschine
EP3260221A1 (fr) 2016-06-24 2017-12-27 ORTMANN Druckgiesstechnik GmbH Giesskammern- Giessbehälter Druckgiesswerkzeuge-Formenbau Chambre de moulage horizontale, kit comprenant une chambre de moulage et une aide au remplissage et procédé de moulage par pression de métal dans une chambre de moulage

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004024952B4 (de) * 2004-05-21 2008-06-05 Bayerische Motoren Werke Ag Druckgusswerkzeug
DE102014018795A1 (de) * 2014-12-19 2016-06-23 Gebr. Krallmann Gmbh Fördervorrichtung für eine Metallschmelze in einem Spritzgussaggregat
DE102017011321B3 (de) * 2017-12-08 2019-05-16 Wieland-Werke Ag Füllkammer für eine Druckgießmaschine
DE102023111863A1 (de) * 2023-05-08 2024-11-14 Bayerische Motoren Werke Aktiengesellschaft Druckgusskammervorrichtung für eine Kaltkammerdruckgussmaschine

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3664411A (en) * 1969-10-25 1972-05-23 Gkn Group Services Ltd Die-casting apparatus with ceramic shot duct liner
JPS6372464A (ja) * 1986-09-17 1988-04-02 Hitachi Metals Ltd ダイカストスリ−ブ
DE4229338A1 (de) * 1992-09-02 1994-03-03 Hugo Kunz Füllkammer für eine Druckgießmaschine
US5322111A (en) * 1993-02-16 1994-06-21 A. H. Casting Services Limited Ceramic lined shot sleeve
DE4302157A1 (de) * 1993-01-27 1994-07-28 Hugo Kunz Füllkammer für eine Druckgießmaschine
EP0936010A1 (fr) * 1998-02-12 1999-08-18 Didier-Werke Ag Procédé et dispositif pour couler sous pression des métaux
DE19856971A1 (de) * 1998-12-10 2000-06-15 Buehler Druckguss Ag Uzwil Druckgussmaschine und Giesskammer hierzu

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5588971A (en) 1978-12-26 1980-07-05 Toshiba Mach Co Ltd Injection pump of hot chamber type die casting machine
JPS5588966A (en) 1978-12-26 1980-07-05 Toshiba Mach Co Ltd Injection pump of hot chamber type die casting machine
JPS56109150A (en) 1980-01-31 1981-08-29 Toshiba Mach Co Ltd Cold chamber type die casting machine
JPS5747566A (en) 1980-09-03 1982-03-18 Toshiba Mach Co Ltd Injection pump for hot chamber type die casting
US5983979A (en) 1996-09-06 1999-11-16 Sanki Company Hot chamber die casting machine for aluminum and its alloys

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3664411A (en) * 1969-10-25 1972-05-23 Gkn Group Services Ltd Die-casting apparatus with ceramic shot duct liner
JPS6372464A (ja) * 1986-09-17 1988-04-02 Hitachi Metals Ltd ダイカストスリ−ブ
DE4229338A1 (de) * 1992-09-02 1994-03-03 Hugo Kunz Füllkammer für eine Druckgießmaschine
DE4302157A1 (de) * 1993-01-27 1994-07-28 Hugo Kunz Füllkammer für eine Druckgießmaschine
US5322111A (en) * 1993-02-16 1994-06-21 A. H. Casting Services Limited Ceramic lined shot sleeve
EP0936010A1 (fr) * 1998-02-12 1999-08-18 Didier-Werke Ag Procédé et dispositif pour couler sous pression des métaux
DE19856971A1 (de) * 1998-12-10 2000-06-15 Buehler Druckguss Ag Uzwil Druckgussmaschine und Giesskammer hierzu

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 012, no. 294 (M - 730) 11 August 1988 (1988-08-11) *

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006089442A1 (fr) * 2005-02-28 2006-08-31 Bühler Druckguss AG Chambre de coulee
CN100381231C (zh) * 2006-06-23 2008-04-16 兰州理工大学 金属半固态锭料连续输送加热装置
EP2620238A1 (fr) * 2012-01-26 2013-07-31 Bühler AG Chambre de coulée pour machine de coulée sous pression
WO2013110485A1 (fr) * 2012-01-26 2013-08-01 Bühler AG Chambre de coulée pour machine de coulée sous pression
DE102014009565A1 (de) * 2014-06-27 2015-12-31 Wieland-Werke Ag Füllkammer für eine Druckgießmaschine
EP2962785A3 (fr) * 2014-06-27 2016-03-02 Wieland-Werke AG Chambre de remplissage pour une machine de coulee sous pression
DE102014009565B4 (de) 2014-06-27 2020-05-20 Wieland-Werke Ag Füllkammer für eine Druckgießmaschine
EP3260221A1 (fr) 2016-06-24 2017-12-27 ORTMANN Druckgiesstechnik GmbH Giesskammern- Giessbehälter Druckgiesswerkzeuge-Formenbau Chambre de moulage horizontale, kit comprenant une chambre de moulage et une aide au remplissage et procédé de moulage par pression de métal dans une chambre de moulage
DE102016111663A1 (de) 2016-06-24 2017-12-28 Ortmann Druckgießtechnik GmbH Gießkammern-Gießbehälter-Druckgießwerkzeuge-Formenbau Horizontale Gießkammer, Kit mit einer Gießkammer und einer Einfüllhilfe sowie Verfahren zum Druckgießen von Metall in einer Gießkammer
DE202017007128U1 (de) 2016-06-24 2019-08-29 Ortmann Druckgießtechnik GmbH Gießkammern-Gießbehälter-Druckgießwerkzeuge-Formenbau Horizontale Gießkammer sowie ein Kit mit einer Gießkammer und einer Einfüllhilfe

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Publication number Publication date
DE20214882U1 (de) 2002-12-19

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