EP1156900B1 - Chambre de coulee, notamment pour la coulee sous pression de metaux - Google Patents

Chambre de coulee, notamment pour la coulee sous pression de metaux Download PDF

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Publication number
EP1156900B1
EP1156900B1 EP00903698A EP00903698A EP1156900B1 EP 1156900 B1 EP1156900 B1 EP 1156900B1 EP 00903698 A EP00903698 A EP 00903698A EP 00903698 A EP00903698 A EP 00903698A EP 1156900 B1 EP1156900 B1 EP 1156900B1
Authority
EP
European Patent Office
Prior art keywords
casting chamber
casting
chamber according
coolant
coolant duct
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
EP00903698A
Other languages
German (de)
English (en)
Other versions
EP1156900A1 (fr
Inventor
Ulrich F. Ortmann
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 EP1156900A1 publication Critical patent/EP1156900A1/fr
Application granted granted Critical
Publication of EP1156900B1 publication Critical patent/EP1156900B1/fr
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
    • B22D17/2038—Heating, cooling or lubricating the injection unit
    • 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, in particular for die casting of metals, with one Outer jacket and one inserted in the outer jacket and associated with it in particular through a shrink fit Inner cylinder, one at an axial end region Casting material filling opening and on the other side of the mold A cast material outlet opening is provided in the end region and a coolant channel between the inner cylinder and the outer jacket is trained.
  • Casting chambers of the type mentioned above are used primarily in die casting machines Die casting of metals such as aluminum, Magnesium and brass used. This will be mainly horizontal casting chambers used on their one, machine-side end on the top a casting material filling opening and at its other, mold-side end, have a molding material outlet opening.
  • the casting chambers are sometimes very heavy during operation exposed primarily to the high temperatures of the casting material. So rule in the Casting chamber between the machine side, where the hot casting material is poured into the casting chamber and the mold side, where the casting material leaves the casting chamber, Temperature differences of up to 300 ° C that lead to this can cause the casting chamber to warp in a banana shape.
  • Another problem is that due to the different Filling heights of the casting material the casting chamber becomes differently hot during die casting, with the result that it deforms out of round. Furthermore, at Filling process below the filling opening temperatures achieved of more than 600 ° C. At this temperature you can Iron atoms from the surface of the casting chamber steel body diffuse, making the surface brittle and flaking off, so that washouts occur.
  • the object of the invention is therefore a casting chamber type mentioned in such a way that deformations due to temperature stresses and washouts in the Area of the filling opening can be largely prevented.
  • Coolant channels can be a coolant such as during operation Oil or water are passed through the casting chamber at least in those areas where particularly high Temperatures occur, cools. This allows in optimally a uniform temperature profile in the Adjust the casting chamber so that there is a risk of tension or deformations of the entire casting chamber significantly reduced from excessive temperature differences becomes. In the area of the filling opening is due cooling also delays the occurrence of leaching.
  • the coolant channels can be practically arbitrary in the Annular gap formed between outer jacket and inner cylinder his.
  • they can be helical extend around the longitudinal axis of the casting chamber, then the cooling capacity in a simple manner via the slope and so that the distance of the helix from each other can be determined can.
  • the pitch of the helix is constant remains. But it is also possible to climb the slope and / or to vary the pitch of the coil to match this be higher in certain areas and in others Areas to achieve a lower cooling capacity.
  • the helix on machine-side end of the casting chamber, where also the filling opening is located and accordingly the casting chamber is strongly heated lie close together or one have a small slope, in this way a high Achieve cooling performance while at the mold end such a high cooling is not required for the casting chamber is, so that there the slope of the helix accordingly can be bigger.
  • the coolant channel can also be at least one axial section of the casting chamber meandering with in Direction of the mold side and back again Extend sections around the circumference of the casting chamber.
  • helical sections with meandering sections can also be used Sections can be combined alternately.
  • the inlet of the coolant channel on the machine side and the outlet is on the mold side of the casting chamber, the at least one coolant channel then being designed in this way can be that the cooling fluid the coolant channel in one direction from the machine side to the mold side flows through.
  • the inlet and the Outlet of the coolant channel also both on the machine side the casting chamber, then the coolant channel according to a preferred embodiment one of Inlet towards the mold end of the casting chamber extending first helical section and one adjoin and extend back to the outlet has a second helical section, so that the coolant channel in the manner of a two-start thread is trained. It is essential that the inlet on the hot machine side, so that it is still cold here Coolant can achieve the greatest cooling effect.
  • the casting chamber can axially in a base body and a the filling opening for the Casting material having exchangeable bushing can be divided.
  • a coolant channel in the base body be formed, being in the interchangeable socket a coolant channel is also formed.
  • the coolant channel in the change socket can either independent of the coolant channel in the base body be supplied with coolant, or its outlet can with the inlet of the coolant channel in the base body be connected so that the coolant first through the Interchangeable socket and then guided through the base body becomes.
  • FIGS. 1 to 6 a horizontal casting chamber 1 according to the present Invention shown as in die casting machines for the die casting of metals such as aluminum, Magnesium or brass is used.
  • the casting chambers 1 are made in one piece, i. H. in your Axial direction not divided, and include an outer jacket 2 and one shrunk into the outer jacket 2 Inner cylinder 3.
  • a filling opening 4 is provided, through which liquid or in the interior of the casting cylinder 1 solidified metal can be filled or inserted can, and at the other, mold-side end of the casting chamber 1, an outlet opening, not shown, is provided.
  • a coolant channel 5 in all embodiments through which a coolant such as oil, Water or the like can be passed to the casting chamber 1 to cool and in this way deformations of the Casting chamber 1, which otherwise due to temperature differences to prevent or at least prevent this counteract.
  • the coolant channel 5, which is in the inner wall of the outer jacket 2 and / or in the outer wall of the inner cylinder 3 can be formed at the various shown in Figures 1 to 6 Different designs:
  • the slope of the spiral of the coolant channel 5 is there constant over the entire length of the horizontal cooling chamber 1.
  • the slope can also be climbed over the axial length of the cooling chamber 5 vary.
  • the pitch of the helix is less, so that the coils are closer together and thus a stronger one Cooling takes place.
  • Fig. 2 lie the inlet 6 and the outlet 7 of the coolant channel 5 also at the opposite ends of the casting chamber 1.
  • the coolant channel 5 extends here in a meandering manner with from the machine side to the mold side and back sections A, B around the casting chamber 1 around so that the coolant between the axial End regions of the casting chamber 9 flows back and forth.
  • the third embodiment of a shown in FIG Casting chamber 1 represents a combination of the previously described embodiments in which the coolant channel 5 has a first section 5a in the area the inlet filler opening 4 has a meandering shape with from the machine side to the mold side and again back sections A, B is formed. Connects to the meandering first channel section 5a a second channel section 5b in which the coolant channel 5 is helical.
  • This embodiment has the advantage that in the area of the filling opening 4 due to the meandering formation and narrow adjacent sections A, B have a high cooling capacity is achievable.
  • In the casting chamber 1 shown in Fig. 4 are the Inlet 6 and outlet 7 of the coolant channel 5 both on machine-side end of the casting chamber 1.
  • the coolant channel 5 is in the manner of a two-start thread formed and has a first portion 5a, the from the inlet to the mold end of the casting chamber 1 extends, and a second portion 5b that adjoins connects the first section 5a and to the machine side End runs back.
  • This embodiment, in which Inlet 6 and outlet 7 of the coolant channel 5 both on the machine side End of the casting chamber 1 has the Advantage that the die casting machine for which the casting chamber 1 is determined, not specifically at the mold end to be designed for the removal of the coolant needs.
  • the embodiment shown in Fig. 5 corresponds to essentially of the embodiment shown in FIG. 2, since the coolant channel 5 also meanders with the machine side to the mold side and back again extending sections A, B is formed.
  • the embodiment shown in Fig. 6 represents one Combination of the two embodiments from the figures 4 and 5.
  • the coolant channel 5 has here in one first section 5a, which is essentially in the range of Filling opening 4 is located, with a meandering shape the machine side to the mold side and back again extending sections A, B, and is in an adjoining second channel section 5b in the manner of a two-start thread, the coolant channel 5 from the first channel section 5a initially to to the form end and then stretched back.
  • the outlet end of the second channel section 5b is then connected to the outlet 7, the connecting portion can also be meandering.
  • the casting chamber 1 can also be axially divided, then they are one Base body 8 and a machine side connectable to it Has interchangeable bush 10 with the filling opening 4.
  • Coolant channel 5 is provided, in the interchangeable socket 10 a coolant channel is also formed.
  • FIGs 7 to 10 are each Base body 8 with differently designed coolant channels 9, wherein it is provided that this coolant channel 9 separately from one provided in the interchangeable sleeve 10 coolant channel a coolant is supplied.
  • the coolant channel 9 is similar to that in FIG. 1 shown casting chamber 1 between one on the machine side End provided inlet 12 and one on the mold side End provided outlet 13 helically so that a coolant flows through the base body 8 in one direction.
  • Fig. 8 lie Inlet 12 and outlet 13 of the coolant channel 9 both on machine-side end of the base body 8 and is the Coolant channel 9 in the manner of a two-start thread with a first section 9 a, which extends from the inlet 12 extends to the mold-side end of the base body 8, and an adjoining second section 9b, the extends back to outlet 13, formed.
  • the coolant channel 9 extends in each case meandering between the two axial ends of the Base body 8 along the circumference of the casting chamber 1, wherein inlet 12 and outlet 13 at that in FIG. 10 Embodiment shown both on the machine side End of the base body 8, while in FIG. 8 illustrated embodiment of the inlet 12 on the machine side End and the outlet 13 at the mold end of the Base body 8 are provided.
  • FIGS to 13 and 14 to 16 are two embodiments represented by interchangeable bushings 10, which to the Base body 8 of Figures 7 to 10 are connected can.
  • the two change sockets 10 are with one extending between outer jacket 2 and inner cylinder 3 Coolant channel 11 provided, which meanders between the axial ends along the circumference of the interchangeable bush 10 extends. Distinguish the two interchangeable sockets 10 only to the extent that in the case of FIGS to 16 illustrated embodiment inlet 14 and outlet 15 of the coolant channel 11 both at the machine end of the interchangeable bush 10, while in FIGS to 13 illustrated embodiment of the inlet 14 and the outlet 15 of the coolant channel 11 to the opposite one another axial ends of the interchangeable bush 10 are provided are.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Continuous Casting (AREA)
  • Macromonomer-Based Addition Polymer (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Manufacture Of Alloys Or Alloy Compounds (AREA)
  • Moulding By Coating Moulds (AREA)
  • Organic Insulating Materials (AREA)
  • Measuring Fluid Pressure (AREA)

Claims (15)

  1. Chambre de coulage, notamment pour le coulage sous pression de métaux, avec une enveloppe extérieure (2) et un cylindre intérieur (3) introduit dans l'enveloppe extérieure (2) et lié avec ladite enveloppe notamment au moyen d'un frettage dans laquelle chambre on a prévu sur une zone terminale axiale une ouverture de remplissage pour la matière de coulage (4) et sur l'autre zone terminale du coté du moule une ouverture de sortie pour la matière de coulage et dans laquelle chambre on a formé entre le cylindre intérieur et l'enveloppe extérieure un canal de réfrigérant (5, 9, 11), caractérisé en ce que le canal de réfrigérant (5, 9, 11) s'étend essentiellement sur toute la longueur axiale de la chambre de coulage, la zone de l'ouverture de remplissage pour la matière de coulage (4) et la zone terminale du coté du moule de la chambre de coulage (1).
  2. Chambre de coulage selon la revendication 1, caractérisée en ce que le canal de réfrigérant (5, 9) s'étend de façon hélicoïdale sur au moins un tronçon partiel axial de la chambre de coulage (1).
  3. Chambre de coulage selon la revendication 2, caractérisée en ce que l'inclinaison de l'hélice est constante.
  4. Chambre de coulage selon la revendication 2, caractérisée en ce que l'inclinaison de l'hélice varie sur la longueur axiale de la chambre de coulage (1).
  5. Chambre de coulage selon la revendication 4 , caractérisée en ce que les hélices sont plus rapprochés sur l'extrémité du coté de la machine que sur l'extrémité du coté du moule de la chambre de coulage (1).
  6. Chambre de coulage selon une des revendications précédentes, caractérisée en ce que le canal de réfrigérant (5, 9, 11) s'étend au moins dans un tronçon partiel axial de la chambre de coulage (1) de façon méandreuse avec des tronçon (A, B) s'étendant en direction du coté du moule et puis retournant vers l'arrière autour de la circonférence de la chambre de coulage (1).
  7. Chambre de coulage selon la revendication 6 , caractérisé en ce que le tronçon (5, 5a, 9, 11) méandreux du canal de réfrigérant (5, 9, 11) est réalisé dans la zone de l'ouverture de remplissage pour la matière de coulage (4) de la chambre de coulage (1).
  8. Chambre de coulage selon une des revendications précédentes, caractérisée en ce que l'entrée (6, 12, 14) du canal de réfrigérant (5, 9, 11) est située sur le coté de la machine et que la sortie (7, 13, 15) est située sur coté du moule de la chambre (1).
  9. Chambre de coulage selon une des revendications 1 à 7, caractérisée en ce que l'entrée (6, 12, 14) et la sortie 7, 13, 15) du canal de réfrigérant (5) sont situées sur le coté de la machine de la chambre de coulage (1).
  10. Chambre de coulage selon la revendication 9, caractérisée en ce que le canal de réfrigérant (5, 9) comporte un premier tronçon hélicoïdal (5a, 9a) s'étendant en direction de l'extrémité du coté du moule de la chambre de coulage (1) et un deuxième tronçon hélicoïdal (5b, 9b) s'étendant vers l'arrière en direction de la sortie (7, 13).
  11. Chambre de coulage selon une des revendications précédentes, caractérisée en ce que la chambre de coulage (1) est axialement divisée en un corps de base (8) et un manchon (10) comportant l'ouverture de remplissage pour la matière de remplissage (4).
  12. Chambre de coulage selon la revendication 11, caractérisée en ce que l'on a réalisé dans le corps de base (8) un canal de réfrigérant (9).
  13. Chambre de coulage selon la revendication 12, caractérisée en ce que l'on a réalisé dans le manchon (10) un canal de réfrigérant (11), dont la sortie est reliée à l'entrée du canal de réfrigérant du corps de base (8).
  14. Chambre de coulage selon la revendication 11 ou 12, caractérisée en ce que l'on a réalisé dans le corps de base (8) et dans le manchon (10) des canaux de réfrigérant (9, 11) alimentés de façon indépendante en réfrigérant.
  15. Chambre de coulage selon une des revendications précédentes, caractérisée en ce que les canaux de réfrigérant (5, 9, 11) sont réalisés sur le coté intérieur de l'enveloppe extérieure (2) et / ou sur le coté extérieur du cylindre intérieur.
EP00903698A 1999-02-26 2000-02-16 Chambre de coulee, notamment pour la coulee sous pression de metaux Expired - Lifetime EP1156900B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19908392 1999-02-26
DE19908392A DE19908392C2 (de) 1999-02-26 1999-02-26 Gießkammer, insbesondere für das Druckgießen von Metallen
PCT/EP2000/001237 WO2000051764A1 (fr) 1999-02-26 2000-02-16 Chambre de coulee, notamment pour la coulee sous pression de metaux

Publications (2)

Publication Number Publication Date
EP1156900A1 EP1156900A1 (fr) 2001-11-28
EP1156900B1 true EP1156900B1 (fr) 2003-05-21

Family

ID=7898983

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00903698A Expired - Lifetime EP1156900B1 (fr) 1999-02-26 2000-02-16 Chambre de coulee, notamment pour la coulee sous pression de metaux

Country Status (8)

Country Link
EP (1) EP1156900B1 (fr)
AT (1) ATE240809T1 (fr)
AU (1) AU2548900A (fr)
DE (2) DE19908392C2 (fr)
DK (1) DK1156900T3 (fr)
ES (1) ES2199771T3 (fr)
PT (1) PT1156900E (fr)
WO (1) WO2000051764A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012103661A1 (fr) 2011-02-01 2012-08-09 Muller Frederic Dispositif de refroidissement pour une machine à coulée sous pression
EP2486994A3 (fr) * 2011-02-09 2012-10-31 United Technologies Corporation Piston de seringue pour système de moulage

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10123028A1 (de) * 2001-05-11 2002-11-21 Ludger Weier Verfahren und Vorrichtung zur Aufbereitung abgenutzter Druckguß-Füllkammern
DE10205246B4 (de) * 2002-02-08 2004-04-15 Wieland-Werke Ag Füllkammer für eine Druckgießmaschine
DE102017011321B3 (de) * 2017-12-08 2019-05-16 Wieland-Werke Ag Füllkammer für eine Druckgießmaschine
ES2763861B2 (es) * 2018-11-29 2022-05-10 Alrotec Tecnology S L U Sistema de inyeccion
CN110202116A (zh) * 2019-07-18 2019-09-06 上海普锐赛司实业有限公司 压铸用料筒制作方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3516480A (en) * 1968-06-17 1970-06-23 Hamilton Die Cast Inc Shot tube for a die casting type machine
AT338307B (de) * 1973-07-23 1977-08-25 Voest Ag Metallurgisches gefass, insbesondere konverter
DE3323328C1 (de) * 1983-06-29 1984-05-03 Mahle Gmbh, 7000 Stuttgart Einteiliger flüssigkeitsgekühlter Gießkolben
JPS6167556A (ja) * 1984-09-12 1986-04-07 Nichiei Kozai Kk ダイカスト射出スリ−ブ
JPS61144256A (ja) * 1984-12-18 1986-07-01 Ube Ind Ltd ダイカストマシンにおける溶湯鋳込方法
US5010946A (en) * 1987-10-07 1991-04-30 Hitachi Metals, Ltd. Die casting cylinder
US4926926A (en) * 1988-12-05 1990-05-22 Zecman Kenneth P Three layer shot sleeve assembly
DE4440933C1 (de) * 1994-11-17 1996-03-14 Gerhard Dr Ing Betz Horizontale Kaltkammer-Druckgießmaschine und Gießverfahren
DE19522716C1 (de) * 1995-06-22 1996-09-19 Hotset Heizpatronen Zubehoer Vorrichtung zur Beheizung von Verteilerrohren zum Zuführen von Fluiden

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012103661A1 (fr) 2011-02-01 2012-08-09 Muller Frederic Dispositif de refroidissement pour une machine à coulée sous pression
EP2486994A3 (fr) * 2011-02-09 2012-10-31 United Technologies Corporation Piston de seringue pour système de moulage

Also Published As

Publication number Publication date
PT1156900E (pt) 2003-09-30
DE19908392A1 (de) 2000-09-07
EP1156900A1 (fr) 2001-11-28
ATE240809T1 (de) 2003-06-15
DE19908392C2 (de) 2001-06-07
ES2199771T3 (es) 2004-03-01
AU2548900A (en) 2000-09-21
WO2000051764A1 (fr) 2000-09-08
DE50002259D1 (de) 2003-06-26
DK1156900T3 (da) 2003-09-15

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