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EP1057561B1 - Casting chamber for a pressure die casting machine - Google Patents

Casting chamber for a pressure die casting machine Download PDF

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Publication number
EP1057561B1
EP1057561B1 EP99810489A EP99810489A EP1057561B1 EP 1057561 B1 EP1057561 B1 EP 1057561B1 EP 99810489 A EP99810489 A EP 99810489A EP 99810489 A EP99810489 A EP 99810489A EP 1057561 B1 EP1057561 B1 EP 1057561B1
Authority
EP
European Patent Office
Prior art keywords
casting chamber
inner jacket
jacket
casting
conical
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 - Lifetime
Application number
EP99810489A
Other languages
German (de)
French (fr)
Other versions
EP1057561A1 (en
Inventor
André Müller
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE59910520T priority Critical patent/DE59910520D1/en
Priority to ES99810489T priority patent/ES2227994T3/en
Priority to EP99810489A priority patent/EP1057561B1/en
Priority to CA002305841A priority patent/CA2305841C/en
Priority to US09/585,959 priority patent/US6425434B1/en
Publication of EP1057561A1 publication Critical patent/EP1057561A1/en
Application granted granted Critical
Publication of EP1057561B1 publication Critical patent/EP1057561B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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 present invention relates to a casting chamber for a die casting machine, the cylindrical inner surface serves as a sliding surface for a pressure piston, wherein in Casting chamber jacket over its entire length or over part of the sliding surface for the inner jacket having the pressure piston is used interchangeably, which Inner jacket is pressed against the casting chamber jacket by means of a pressing device and where the casting chamber jacket and inner jacket with a feed opening for liquid Casting material are provided
  • Giesskammem are known and have an oil or water cooling device so that excess heat introduced by the liquid casting material is carried away and the Casting chamber can be kept at a constant operating temperature, so that the Thermal deformation of the casting chamber remains as low as possible.
  • DE 44 21 598 a casting chamber, in which one Half-shell with feed opening for various uses of the casting machine is interchangeably arranged on the casting machine.
  • an exchangeable ceramic insert is arranged in the area of the casting chamber opposite the feed opening, where the largest Wear occurs.
  • the invention now has the task of creating a casting chamber in which no oil or Water cooling device is necessary without the risk of heat deformation increases. Furthermore, should the sliding surface for the pressure piston not wear out whole casting chamber must be replaced. There should also be the possibility with to pour higher casting chamber temperatures.
  • the task is carried out with a casting chamber of the type mentioned solved according to the invention in that the pressing device has a conical wedge and Has screws, the conical wedge in a conical slot of the inner shell is inserted and of the screws screwed into its threaded holes is pressed together with the inner jacket on the casting chamber jacket.
  • the inner jacket is inserted over the entire length, the heat is distributed evenly Over the whole length. It is possible, however, to do this over a partial length inserted inner jacket is sufficient.
  • a good contact is made by means of the pressing device reached between the inner jacket and the casting chamber jacket made of steel, so that the heat in
  • the latter is forwarded.
  • the pressing device it is also conceivable to use the pressing device as Form shrinking device, but the interchangeability of the inner jacket is much easier by loosening the screws screwed into the wedge. So that Heat is also distributed evenly over the inner circumference of the jacket, this has grooves in which there are also rings made of copper with a conical slot, Copper alloy or any other highly thermally conductive material are used. If the inner jacket is made of hot-work steel, it ensures together with the used Rings for even heat distribution over length and circumference. If for the Piston sliding surface a ceramic layer is used, the heat flow can be counteracted be reduced outside.
  • the inner jacket is made of a highly heat-resistant Special alloy with high nickel content, is advantageous on the outer circumference Insulating layer attached, so that because of the significantly higher thermal conductivity than at Steel can be cast with higher casting chamber temperatures. So that Piston sliding surface forms a unit, the conical wedge advantageously consists of same material as the inner jacket.
  • FIG. 1 An exemplary embodiment of a casting chamber according to the invention is described below the only drawing figure explained.
  • the figure shows a perspective View of the casting chamber, the part of the chamber with the casting chamber shield is connected, a quarter is cut away for a better overview, in the chamber part the unchanged view is shown, however, which is connected to the form plate.
  • the casting chamber 1 consists of a cylindrical casting chamber jacket 2 made of steel, in which an inner jacket 3 made of hot-work steel is used, the cylindrical Inner surface forms a sliding surface 4 for the pressure piston.
  • Casting chamber jacket 2 and Inner jacket 3 have a feed opening 5 for liquid casting material.
  • the inner jacket 3 is provided with a conical slot 6, in which one with six threaded holes 7 provided conical wedge 8 is used.
  • Six Allen screws 9 are in corresponding Bores 10 of the casting chamber shell 2 sunk and into the threaded holes 7 screwed so that the conical wedge 8 and through this also the inner jacket 3 against the casting chamber jacket 2 is pressed.
  • the inner jacket 3 has its length uniformly distributed grooves 11, in which also a conical slot 12 having rings 13 made of copper, copper alloy or another highly thermally conductive material are used for example by brazing.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)

Description

Die vorliegende Erfindung betrifft eine Giesskammer für eine Druckgiessmaschine, deren zylindrische Innenfläche als Gleitfläche für einen Druckkolben dient, wobei im Giesskammermantel auf seiner ganzen Länge oder auf einer Teillänge ein die Gleitfläche für den Druckkolben aufweisender Innenmantel austauschbar eingesetzt ist, welcher Innenmantel mittels einer Anpresseinrichtung an den Giesskammermantel gepresst wird und wobei Giesskammermantel und Innenmantel mit einer Zuführöffnung für flüssiges Giessmaterial versehen sindThe present invention relates to a casting chamber for a die casting machine, the cylindrical inner surface serves as a sliding surface for a pressure piston, wherein in Casting chamber jacket over its entire length or over part of the sliding surface for the inner jacket having the pressure piston is used interchangeably, which Inner jacket is pressed against the casting chamber jacket by means of a pressing device and where the casting chamber jacket and inner jacket with a feed opening for liquid Casting material are provided

Giesskammem sind bekannt und weisen eine Öl- oder Wasserkühleinrichtung auf, damit die durch das flüssige Giessmaterial eingeführte überflüssige Wärme weggeführt und die Giesskammer auf konstanter Betriebstemperatur gehalten werden kann, so dass die Wärmeverformung der Giesskammer möglichst gering bleibt. Weiter ist in der Offenlegungsschrift DE 44 21 598 eine Giesskammer bekannt geworden, bei der eine die Zuführöffnung aufweisende Halbschale für verschiedene Verwendungen der Giessmaschine austauschbar an der Giessmaschine angeordnet ist. Bei einer weiteren Ausführungsform ist im der Zuführöffnung gegenüberliegenden Bereich der Giesskammer, wo der grösste Verschleiss stattfindet, ein austauschbarer Keramikeinsatz angeordnet. Auch ist in der Offenlegungsschrift DE 42 29 338 eine Giesskammer mit einer Zuführöffnung beschrieben, die nur im Bereich der Zuführöffnung einen austauschbar eingesetzten Innenmantel aufweist, der mittels einer aus Zentrierring, Spannring und Stiften bestehenden Anpresseinrichtung in axialer und radialer Richtung in der Giesskammerinnenwand verspannt und koaxial ausgerichtet wird. Eine solche Anpresseinrichtung ist aber für einen auf der ganzen Länge der Giesskammer eingesetzten Innenmantel ungeeignet.Giesskammem are known and have an oil or water cooling device so that excess heat introduced by the liquid casting material is carried away and the Casting chamber can be kept at a constant operating temperature, so that the Thermal deformation of the casting chamber remains as low as possible. Next is in the Published patent application DE 44 21 598 a casting chamber, in which one Half-shell with feed opening for various uses of the casting machine is interchangeably arranged on the casting machine. In another embodiment in the area of the casting chamber opposite the feed opening, where the largest Wear occurs, an exchangeable ceramic insert is arranged. Is also in the Published patent application DE 42 29 338 describes a casting chamber with a feed opening, which has a replaceable inner jacket only in the area of the feed opening has, which consists of a centering ring, clamping ring and pins Pressing device in the axial and radial direction in the inner wall of the casting chamber is clamped and aligned coaxially. Such a pressing device is for one unsuitable inner jacket used along the entire length of the casting chamber.

Die Erfindung stellt sich nun die Aufgabe, eine Giesskammer zu schaffen, bei der keine Öloder Wasserkühleinrichtung notwendig ist, ohne dass die Gefahr der Wärmeverformung zunimmt. Weiter soll bei einem Verschleiss der Gleitfläche für den Druckkolben nicht die ganze Giesskammer ersetzt werden müssen. Femer soll auch die Möglichkeit bestehen mit höheren Giesskammertemperaturen zu giessen.The invention now has the task of creating a casting chamber in which no oil or Water cooling device is necessary without the risk of heat deformation increases. Furthermore, should the sliding surface for the pressure piston not wear out whole casting chamber must be replaced. There should also be the possibility with to pour higher casting chamber temperatures.

Die gestellte Aufgabe wird mit einer Giesskammer der eingangs genannten Art erfindungsgemäss dadurch gelöst, dass die Anpresseinrichtung einen konischen Keil und Schrauben aufweist, wobei der konische Keil in einen konischen Schlitz des Innenmantels eingesetzt ist und von den in seinen Gewindebohrungen eingeschraubten Schrauben zusammen mit dem Innenmantel an den Giesskammermantel gepresst wird. Indem der Innenmantel über die ganze Länge eingesetzt ist, erfolgt die Wärmeverteilung gleichmässig über die ganze Länge. Es ist aber möglich, dass dazu schon ein über eine Teillänge eingesetzter Innenmantel genügt. Mittels der Anpresseinrichtung wird ein guter Kontakt zwischen Innenmantel und Giesskammermantel aus Stahl erreicht, so dass die Wärme inThe task is carried out with a casting chamber of the type mentioned solved according to the invention in that the pressing device has a conical wedge and Has screws, the conical wedge in a conical slot of the inner shell is inserted and of the screws screwed into its threaded holes is pressed together with the inner jacket on the casting chamber jacket. By the The inner jacket is inserted over the entire length, the heat is distributed evenly Over the whole length. It is possible, however, to do this over a partial length inserted inner jacket is sufficient. A good contact is made by means of the pressing device reached between the inner jacket and the casting chamber jacket made of steel, so that the heat in

letzteren weitergeleitet wird.Es ist aber auch denkbar, die Anpresseinrichtung als Schrumpfeinrichtung auszubilden, wobei aber die Austauschbarkeit des Innenmantels mittels Lösen der in den Keil eingeschraubten Schrauben wesentlich einfacher ist. Damit die Wärme auch gleichmässig über den Innenmantelumfang verteilt wird, weist dieser Nuten auf, in denen ebenfalls einen konischen Schlitz aufweisende Ringe aus Kupfer, Kupferlegierung oder jedem anderen hochwärmeleitfähigen Werkstoff eingesetzt sind. Wenn der Innenmantel aus Warmarbeitsstahl besteht, sorgt er zusammen mit den eingesetzten Ringen für eine gleichmässige Wärmeverteilung über Länge und Umfang. Falls für die Kolbengleitfläche eine Keramikschicht eingesetzt wird, kann der Wärmeabfluss gegen aussen vermindert werden. Wenn der Innenmantel aus einer hochwärmefesten Speziallegierung mit hohem Nickelgehalt besteht, wird vorteilhaft am Aussenumfang eine Isolierschicht angebracht, so dass wegen der bedeutend höheren Wärmeleitfähigkeit als bei Stahl mit höheren Giesskammertemperaturen gegossen werden kann. Damit die Kolbengleitfläche eine Einheit bildet, besteht der konische Keil vorteilhafterweise aus dem gleichen Material wie der Innenmantel.the latter is forwarded. However, it is also conceivable to use the pressing device as Form shrinking device, but the interchangeability of the inner jacket is much easier by loosening the screws screwed into the wedge. So that Heat is also distributed evenly over the inner circumference of the jacket, this has grooves in which there are also rings made of copper with a conical slot, Copper alloy or any other highly thermally conductive material are used. If the inner jacket is made of hot-work steel, it ensures together with the used Rings for even heat distribution over length and circumference. If for the Piston sliding surface a ceramic layer is used, the heat flow can be counteracted be reduced outside. If the inner jacket is made of a highly heat-resistant Special alloy with high nickel content, is advantageous on the outer circumference Insulating layer attached, so that because of the significantly higher thermal conductivity than at Steel can be cast with higher casting chamber temperatures. So that Piston sliding surface forms a unit, the conical wedge advantageously consists of same material as the inner jacket.

Nachfolgend wird ein Ausführungsbeispiel einer erfindungsgemässen Giesskammer anhand der einzigen Zeichnungsfigur näher erläutert. Dabei zeigt die Figur eine perspektivische Ansicht der Giesskammer, wobei beim Kammerteil, der mit dem Giesskammerschild verbunden wird, zur besseren Übersicht ein Viertel weggeschnitten ist, beim Kammerteil hingegen, der mit dem Formschild verbunden wird, die unveränderte Ansicht gezeigt ist.An exemplary embodiment of a casting chamber according to the invention is described below the only drawing figure explained. The figure shows a perspective View of the casting chamber, the part of the chamber with the casting chamber shield is connected, a quarter is cut away for a better overview, in the chamber part the unchanged view is shown, however, which is connected to the form plate.

Die Giesskammer 1 besteht aus einem zylindrischen Giesskammermantel 2 aus Stahl, in welchen ein Innenmantel 3 aus Warmarbeitsstahl eingesetzt ist, dessen zylindrische Innenoberfläche eine Gleitfläche 4 für den Druckkolben bildet. Giesskammermantel 2 und Innenmantel 3 weisen eine Zuführöffnung 5 für flüssiges Giessmaterial auf. Der Innenmantel 3 ist mit einem konischen Schlitz 6 versehen, in welchen ein mit sechs Gewindebohrungen 7 versehener konischer Keil 8 eingesetzt ist. Sechs Inbusschrauben 9 sind in entsprechenden Bohrungen 10 des Giesskammermantels 2 versenkt und in die Gewindebohrungen 7 eingeschraubt, so dass der konische Keil 8 und durch diesen auch der Innenmantel 3 gegen den Giesskammermantel 2 gepresst wird. Der Innenmantel 3 weist über seine Länge gleichmässig verteilte Nuten 11 auf, in welchen ebenfalls einen konischen Schlitz 12 aufweisende Ringe 13 aus Kupfer, Kupferlegierung oder einem ändern hochwärmeleitfähigen Werkstoff beispielsweise durch Hartlöten eingesetzt sind.The casting chamber 1 consists of a cylindrical casting chamber jacket 2 made of steel, in which an inner jacket 3 made of hot-work steel is used, the cylindrical Inner surface forms a sliding surface 4 for the pressure piston. Casting chamber jacket 2 and Inner jacket 3 have a feed opening 5 for liquid casting material. The inner jacket 3 is provided with a conical slot 6, in which one with six threaded holes 7 provided conical wedge 8 is used. Six Allen screws 9 are in corresponding Bores 10 of the casting chamber shell 2 sunk and into the threaded holes 7 screwed so that the conical wedge 8 and through this also the inner jacket 3 against the casting chamber jacket 2 is pressed. The inner jacket 3 has its length uniformly distributed grooves 11, in which also a conical slot 12 having rings 13 made of copper, copper alloy or another highly thermally conductive material are used for example by brazing.

Claims (6)

  1. A casting chamber for a die casting machine, the cylindrical internal surface of which serves as a sliding surface for a pressure plunger, an inner jacket (3) which provides the sliding surface (4) for the pressure plunger being exchangeably inserted in the casting chamber jacket over its entire length or over a portion of its length, which inner jacket (3) is pressed against the casting chamber jacket (2) by means of a pressing device, and the casting chamber jacket and the inner jacket being provided with a feed aperture (5) for molten casting material, characterised in that the pressing device has a conical wedge (8) and screws (9), the conical wedge (8) being inserted into a conical slot (6) in the inner jacket (3) and being pressed by the screws (9) screwed into its threaded bores (7), together with the inner jacket (3), against the casting chamber jacket (2).
  2. A casting chamber according to claim 1, characterised in that the inner jacket (3) is provided with grooves (11) into which rings (13) of copper, copper alloy or another highly heat-conductive material that similarly have a conical slot (12) are inserted.
  3. A casting chamber according to either claim 1 or claim 2, characterised in that the inner jacket (3) consists of hot work steel.
  4. A casting chamber according to any one of claims 1 to 3, characterised in that a ceramic layer is used as the sliding surface (4) for the pressure plunger in the inner jacket (3).
  5. A casting chamber according to any one of claims 1 to 4, characterised in that the inner jacket (3) consists of a high-temperature special alloy having a high nickel content.
  6. A casting chamber according to any one of claims 1 to 5, characterised in that the conical wedge (8) consists of the same material as the inner jacket (3).
EP99810489A 1999-06-04 1999-06-04 Casting chamber for a pressure die casting machine Expired - Lifetime EP1057561B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE59910520T DE59910520D1 (en) 1999-06-04 1999-06-04 Casting chamber for a die casting machine
ES99810489T ES2227994T3 (en) 1999-06-04 1999-06-04 CHAMBER OF FOUNDRY FOR A PRESSURE MOLDING MACHINE.
EP99810489A EP1057561B1 (en) 1999-06-04 1999-06-04 Casting chamber for a pressure die casting machine
CA002305841A CA2305841C (en) 1999-06-04 2000-04-13 Casting chamber for a die-casting machine
US09/585,959 US6425434B1 (en) 1999-06-04 2000-06-02 Casting chamber for a die casting machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP99810489A EP1057561B1 (en) 1999-06-04 1999-06-04 Casting chamber for a pressure die casting machine

Publications (2)

Publication Number Publication Date
EP1057561A1 EP1057561A1 (en) 2000-12-06
EP1057561B1 true EP1057561B1 (en) 2004-09-15

Family

ID=8242866

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99810489A Expired - Lifetime EP1057561B1 (en) 1999-06-04 1999-06-04 Casting chamber for a pressure die casting machine

Country Status (5)

Country Link
US (1) US6425434B1 (en)
EP (1) EP1057561B1 (en)
CA (1) CA2305841C (en)
DE (1) DE59910520D1 (en)
ES (1) ES2227994T3 (en)

Cited By (1)

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Publication number Priority date Publication date Assignee Title
DE102004024952A1 (en) * 2004-05-21 2005-12-22 Bayerische Motoren Werke Ag Die casting mold assembly with tubular filling chamber, includes readily-replaceable cylindrical bush accepting pressure plunger in tubular filling chamber

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US20030051851A1 (en) * 2001-09-17 2003-03-20 Fujio Yamada Devices and methods for melting materials
DE10205246B4 (en) * 2002-02-08 2004-04-15 Wieland-Werke Ag Filling chamber for a die casting machine
JP4339135B2 (en) * 2004-01-15 2009-10-07 Ｙｋｋ株式会社 Injection casting equipment for forming amorphous alloys
US7464744B2 (en) 2005-09-13 2008-12-16 Peter Manoff Shot sleeve insert and method of retarding heat erosion within a shot sleeve bore
EP1934339B1 (en) * 2005-10-06 2011-12-14 Lucigen Corporation Thermostable viral polymerases and methods of use
KR100833694B1 (en) 2006-10-02 2008-05-29 안소윤 Shot sleeve of cold casting device and cold casting device using same
CH704444A2 (en) 2011-02-01 2012-08-15 Frederic Muller A one-piece casting chamber of a die casting machine having a cooling means for temperature compensation.
US9731348B1 (en) 2012-03-30 2017-08-15 Brunswick Corporation Method and apparatus for avoiding erosion in a high pressure die casting shot sleeve for use with low iron aluminum silicon alloys
US9114456B1 (en) 2012-03-30 2015-08-25 Brunswick Corporation Method and apparatus for avoiding erosion in a high pressure die casting shot sleeve for use with low iron aluminum silicon alloys
US10486229B1 (en) 2012-03-30 2019-11-26 Brunswick Corporation Method and apparatus for avoiding erosion in a high pressure die casting shot sleeve for use with low iron aluminum silicon alloys
US9114455B1 (en) 2012-03-30 2015-08-25 Brunswick Corporation Method and apparatus for avoiding erosion in a high pressure die casting shot sleeve for use with low iron aluminum silicon alloys
US9757795B1 (en) 2012-03-30 2017-09-12 Brunswick Corporation Method and apparatus for avoiding erosion in a high pressure die casting hot sleeve for use with low iron aluminum silicon alloys
SG2013072814A (en) 2013-09-26 2015-04-29 Pratt & Whitney Services Pte Ltd Insert for die cast shot sleeve
SG2013087382A (en) 2013-11-25 2015-06-29 Pratt & Whitney Services Pte Ltd Die casting machine shot sleeve with pour liner
CN103611914A (en) * 2013-12-05 2014-03-05 昆山市珍和模具五金机械有限公司 Water-cooled casting punch
CN106216630A (en) * 2016-08-31 2016-12-14 天津爱田汽车部件有限公司 The firing equipment of semisolid pressure casting slurry
CN106694843A (en) * 2017-02-22 2017-05-24 凯世曼铸造长春有限公司 Die-casting machine punch
DE102017011321B3 (en) * 2017-12-08 2019-05-16 Wieland-Werke Ag Filling chamber for a die casting machine
CN111151726A (en) * 2019-12-29 2020-05-15 盐城泰欧昌机械有限公司 High-efficient refrigerated die casting machine melts cup
CN111069565A (en) * 2019-12-30 2020-04-28 盐城泰欧昌机械有限公司 General melting cup of die casting machine
CN111644595A (en) * 2020-06-10 2020-09-11 盐城泰欧昌机械有限公司 Novel durable die-casting melting cup
DE102024109648A1 (en) * 2024-04-05 2025-10-09 Oskar Ketterer Druckgiesserei Gmbh Hot-chamber die-casting casting vessel and method therefor

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102004024952A1 (en) * 2004-05-21 2005-12-22 Bayerische Motoren Werke Ag Die casting mold assembly with tubular filling chamber, includes readily-replaceable cylindrical bush accepting pressure plunger in tubular filling chamber
DE102004024952B4 (en) * 2004-05-21 2008-06-05 Bayerische Motoren Werke Ag Diecast tool

Also Published As

Publication number Publication date
EP1057561A1 (en) 2000-12-06
ES2227994T3 (en) 2005-04-01
DE59910520D1 (en) 2004-10-21
US6425434B1 (en) 2002-07-30
CA2305841C (en) 2008-10-21
CA2305841A1 (en) 2000-12-04

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