EP1201335B1 - Einrichtung zur Herstellung von Metall-Druckgussteilen, insbesondere aus NE-Metallen - Google Patents

Einrichtung zur Herstellung von Metall-Druckgussteilen, insbesondere aus NE-Metallen Download PDF

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Publication number
EP1201335B1
EP1201335B1 EP00123367A EP00123367A EP1201335B1 EP 1201335 B1 EP1201335 B1 EP 1201335B1 EP 00123367 A EP00123367 A EP 00123367A EP 00123367 A EP00123367 A EP 00123367A EP 1201335 B1 EP1201335 B1 EP 1201335B1
Authority
EP
European Patent Office
Prior art keywords
nozzle
die
casting
hot
gate
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
EP00123367A
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German (de)
English (en)
French (fr)
Other versions
EP1201335A1 (de
Inventor
Roland Fink
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.)
Oskar Frech GmbH and Co KG
Original Assignee
Oskar Frech GmbH and Co KG
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 Oskar Frech GmbH and Co KG filed Critical Oskar Frech GmbH and Co KG
Priority to AT00123367T priority Critical patent/ATE327849T1/de
Priority to ES00123367T priority patent/ES2262479T3/es
Priority to EP00123367A priority patent/EP1201335B1/de
Priority to DE50012864T priority patent/DE50012864D1/de
Priority to JP2001297179A priority patent/JP4620305B2/ja
Priority to TW090126156A priority patent/TW568804B/zh
Priority to PL350443A priority patent/PL199992B1/pl
Priority to CZ20013903A priority patent/CZ302980B6/cs
Priority to US09/984,970 priority patent/US6830094B2/en
Publication of EP1201335A1 publication Critical patent/EP1201335A1/de
Priority to HK02104785.9A priority patent/HK1043079B/zh
Application granted granted Critical
Publication of EP1201335B1 publication Critical patent/EP1201335B1/de
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
    • B22D17/02—Hot chamber machines, i.e. with heated press chamber in which metal is melted
    • B22D17/04—Plunger machines
    • 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
    • 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
    • B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
    • B22D17/2272—Sprue channels
    • 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
    • B22D17/22—Dies; Die plates; Die supports; Cooling equipment for dies; Accessories for loosening and ejecting castings from dies
    • B22D17/2272—Sprue channels
    • B22D17/2281—Sprue channels closure devices therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D35/00—Equipment for conveying molten metal into beds or moulds
    • B22D35/06—Heating or cooling equipment

Definitions

  • the invention relates to a device for producing metal die-cast parts, in particular of non-ferrous metals, according to the preamble of claim 1.
  • Hot chamber die casting machines with associated mold design are known.
  • the non-ferrous metals zinc and magnesium and, to a lesser extent, lead or tin are cast. Metal has the ability to cool quickly. In die casting, it is therefore poured to achieve the best casting quality, at high speed and high pressure.
  • the mold filling process is between 5ms and 30ms.
  • the closing force of hot chamber machines is up to 10000kN.
  • a hot chamber die casting machine of the type mentioned is disclosed, which is of a type with a so-called self-tearing shape.
  • the runner system in the local molding machine includes a runner which is heatable in a portion adjacent to an entry-side runner within a fixed runner block fixed to a fixed mold half and therefrom along a parting line between the fixed runner block and a movable mold fixed to a movable mold half Runner block and along a dividing line of solid and movable mold half leads to the mold.
  • the invention has for its object to provide a configuration in a device of the type mentioned, can be used in the work with much less Angußanteil.
  • the invention solves this problem by a device having the features of claim 1.
  • the inventive design it is possible to keep the material in the always required, sometimes very complex runners in the liquid state, so that after the cooling of the metal in the Form no cooling of the material located in the runners occurs. This material can be reused on the next shot.
  • nozzle tips are attached to the nozzles provided with a Kammanguß- or Docherangußsystem and connect directly to the contour of the part, wherein the comb or Docherangußsystem forms the gate or this is immediately upstream.
  • This embodiment has the advantage that the metal melt located in the gate cross section of the nozzle tips at least in the semi-solid state passes, because the nozzle tips are not heated themselves. As a result, this material prevents metal from flowing out of the hot runner system after the mold has been opened, or from passing back into the mouthpiece, the riser channel or the casting container.
  • nozzle tips and nozzles are each provided with conical plug-in connections, which ensure a sufficient seal by the application of metal to metal even at the aforementioned, very high temperatures of 650 ° C and 420 ° C.
  • the nozzle tips themselves can be plugged into heated nozzles and the nozzles in turn to the heated channels.
  • the nozzle tips can be adapted to the particular shape of the part to be produced.
  • the nozzle tips can be attached to this form laterally or centrally.
  • An alternative to preventing the backflow of the liquid metal into the riser and the pouring vessel can also be achieved by associating with the mouthpiece an unheated nozzle tip adjacent the runner system in which a plug forms after mold filling, which in turn forms the return flow in the mouthpiece and rising pipe melt can prevent the casting container.
  • This plug is pressed in the next shot in the hot runner system, where a corresponding receiving space is provided for the plug into which the plug passes and thereby the further injection liquid material is not further hindered. The plug melts again in the hot runner system.
  • a check valve is arranged in the riser.
  • a check valve can also be arranged in the casting piston, so that the disadvantage occurring so far in die casting machines, that when the withdrawal of the casting piston from the riser channel no material flows through the material occurring in the casting cylinder vacuum material flows past the piston rings in the casting cylinder, avoided can be.
  • material can now flow directly from the casting container through the casting piston into the casting cylinder.
  • the check valves to be used in this case should be made of high-temperature resistant metal or ceramics in view of the high temperatures that occur.
  • Fig. 1 shows first more or less schematically the casting container 1 of a hot-chamber die casting machine, which is inserted into the melt 2 of the metal to be cast, for example magnesium or zinc. This molten metal 2 is held within a crucible 3, which is used in a manner not shown in a holding furnace.
  • the casting container 1 has a casting cylinder 4 with a casting piston 5, which is not shown in detail, because known manner provided with a subsequent to its piston rod 6 drive, which may be hydraulic or electrical type.
  • the casting cylinder 4 has in its upper region a lateral inflow opening 7, through which the melt 2 can flow into the interior of the casting cylinder 4 when the piston 5 is in a position lying above this opening 7.
  • the casting piston 5 has exceeded the filling position and is moved in the direction of the arrow 8 down, wherein the melt located in the casting cylinder 4 and in the casting cylinder 4 subsequent riser 9 melt on the - heated - nozzle 10 is supplied to the sprue tip 11 which is located in the schematically indicated solid mold half 12.
  • the Angussmund While now lead in conventional die-casting process with hot-chamber die casting machines from Angusmund Ser 11 from rotor channels each to the mold cavities and pass into these on the gates, in the device according to the invention, the Angussmund Sort 11 part of a H Strukturlalangußsytemes 13, which is a heating of the rotor channels 14 and these downstream nozzles 15 to the mold 16 provides.
  • the hot runner system 13 now avoids the occurrence of such considerable cast residues. It can initially be seen in FIG. 2 that the sprue tip 11 is surrounded by a heating sleeve 17 is surrounded, which is supplied via the connecting line 18 with energy.
  • FIG. 3 now shows that the nozzle 15 is provided with a cone 21 in front of the mold cavity 16 and is inserted therewith into the associated receiving cone of the part 22 of the hot runner system 13 and kept sealed there.
  • a metal to metal seal is achieved, which is required at the high temperatures when casting non-ferrous (NE) metals (650 ° C for magnesium and 420 ° C for zinc).
  • NE non-ferrous
  • a nozzle tip 23 is now inserted at the end facing away from the cone 21, and also with a cone 24 which is inserted tightly and firmly into a corresponding counter-cone of the nozzle 15.
  • the nozzle 23 itself is provided at its lower end with comb-like injection channels 25 which open directly into the mold cavity 16.
  • the cross-section of all the injection channels 25 must correspond as a whole to the gate cross-section, which is necessary according to the empirical values for the production of a particular shape which are valid for the hot-chamber die-casting method. In this way it is ensured that the casting speed occurring in these channels 25 does not exceed the permissible maximum speed, as has already been mentioned at the outset.
  • the melt present in the hot runner system 13 can be maintained at a temperature at which it is still in the liquid state.
  • the melt held under pressure in the mold 16 after completion of the pressure casting process solidifies relatively quickly.
  • the melt located in the comb gate of the plurality of channels 25 is at least in the semi-solid state.
  • the nozzle tip 23 is, as can be seen, not heated and it is located in the region of the mold cavity 16.
  • This gate, which is formed by the plurality of channels 25 is separated on removal of the movable mold half 26 of the remaining on the fixed mold half 12 channel portion 27, so that no solidified sprue remains, the then again would have to be melted down.
  • the form 16a which is additionally indicated schematically and by way of example, and which is connected to the nozzle 23a via a gate fan 28 (FIG. 6) with a gate 29 merging into the mold cavity 16a.
  • the runners 25a are located at the bottom of the nozzle and extend substantially in the direction of the axis of the nozzle 15a. Below the nozzle tip 23a therefore arises during casting of the sprue fan 28, which merges via the gate 29 in the mold cavity 16a.
  • the Sprue fan 28 is ejected with. He can then easily be separated from the finished part of his bleed 29.
  • the nozzle tips 23 and 23a of Figs. 3 to 6 have each been designed so that the sprue takes place laterally at the nozzle.
  • FIGS. 7 and 8 now show a further possibility of configuring a nozzle tip 23b, which in turn is connected to the nozzle 15b via a cone 21b.
  • This nozzle tip 23b is placed with its sprue channels 25b and 30 centrally on the mold cavity 16b and thereby causes the melt is pressed centrally directly into the mold cavity 16b.
  • the non-ferrous metals used such as, for example, magnesium and zinc in the liquid state, i. So at their melting temperatures of about 650 ° C for magnesium and about 420 ° C for zinc, almost as fluid as water. You can therefore easily push through the "Kammanguss" in the corresponding mold cavities.
  • the mold filling process requires times of the order of between 5 ms and 30 ms.
  • the material in the mold then solidifies relatively quickly, while the material in the small bores 25, 25a and 25b of the nozzle tips 23, 23a and 23b merges into the semisolid phase and thereby terminates the hot runner system 13 at the completion of the die casting process. On the next shot, this material, which is still in the semisolid phase, is pressed into the mold.
  • FIG. 10 shows a further possibility of preventing the reflux of melt from the hot runner casting system 13 in a relatively simple manner.
  • a mouthpiece body 34 is used, which is not heated and therefore forms a "freezing zone".
  • a cold plug 35 will be created within this mouthpiece body 34, which seals the through hole of the nozzle 10. Melt in the hot runner system 13 can therefore not flow back through the Angussmund Anlagen 11.
  • Fig. 2 shows that the H thoroughlykanalangußsystem 13 in alignment with the passage bore 36 of the mouthpiece 10 on the rotor channel 14 has a receiving space 37 (Fig. 2), in which the plug 35 is collected at the next shot and therefore not through the channel system to the mold cavities can get. This plug melts in the hot runner system 13 until the next shot.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
EP00123367A 2000-10-31 2000-10-31 Einrichtung zur Herstellung von Metall-Druckgussteilen, insbesondere aus NE-Metallen Expired - Lifetime EP1201335B1 (de)

Priority Applications (10)

Application Number Priority Date Filing Date Title
AT00123367T ATE327849T1 (de) 2000-10-31 2000-10-31 Einrichtung zur herstellung von metall- druckgussteilen, insbesondere aus ne-metallen
ES00123367T ES2262479T3 (es) 2000-10-31 2000-10-31 Dispositivo para la fabricacion de piezas de metal moldeadas a presion, en particular de metales no ferreos.
EP00123367A EP1201335B1 (de) 2000-10-31 2000-10-31 Einrichtung zur Herstellung von Metall-Druckgussteilen, insbesondere aus NE-Metallen
DE50012864T DE50012864D1 (de) 2000-10-31 2000-10-31 Einrichtung zur Herstellung von Metall-Druckgussteilen, insbesondere aus NE-Metallen
JP2001297179A JP4620305B2 (ja) 2000-10-31 2001-09-27 金属加圧鋳造部品を形成する装置
TW090126156A TW568804B (en) 2000-10-31 2001-10-23 Device for producing die cast metal parts, in particular from non-ferrous metals
PL350443A PL199992B1 (pl) 2000-10-31 2001-10-30 Urządzenie do wytwarzania odlewów ciśnieniowych z metali, zwłaszcza z metali nieżelaznych
CZ20013903A CZ302980B6 (cs) 2000-10-31 2001-10-30 Zarízení k výrobe tlakove litých kovových odlitku, predevším z neželezných kovu
US09/984,970 US6830094B2 (en) 2000-10-31 2001-10-31 Device and method for producing metal diecast parts, particularly made of nonferrous metals
HK02104785.9A HK1043079B (zh) 2000-10-31 2002-06-27 用於制造金属压铸件尤其是有色金属压铸件的设备

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP00123367A EP1201335B1 (de) 2000-10-31 2000-10-31 Einrichtung zur Herstellung von Metall-Druckgussteilen, insbesondere aus NE-Metallen

Publications (2)

Publication Number Publication Date
EP1201335A1 EP1201335A1 (de) 2002-05-02
EP1201335B1 true EP1201335B1 (de) 2006-05-31

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP00123367A Expired - Lifetime EP1201335B1 (de) 2000-10-31 2000-10-31 Einrichtung zur Herstellung von Metall-Druckgussteilen, insbesondere aus NE-Metallen

Country Status (10)

Country Link
US (1) US6830094B2 (cs)
EP (1) EP1201335B1 (cs)
JP (1) JP4620305B2 (cs)
AT (1) ATE327849T1 (cs)
CZ (1) CZ302980B6 (cs)
DE (1) DE50012864D1 (cs)
ES (1) ES2262479T3 (cs)
HK (1) HK1043079B (cs)
PL (1) PL199992B1 (cs)
TW (1) TW568804B (cs)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2295172A1 (de) 2007-05-24 2011-03-16 Oskar Frech GmbH + Co. KG Angussblockeinheit, Angusssystem und Steuerungseinrichtung für eine Druckgiessmaschine
DE102011017610B3 (de) * 2011-04-27 2012-06-21 Oskar Frech Gmbh + Co. Kg Gießkolben und Gießeinheit mit Absperrventil
DE102013105433B3 (de) * 2013-05-27 2014-05-22 Schuler Pressen Gmbh Gießvorrichtung mit einer Ringleitung und Gießverfahren
DE102015210403A1 (de) 2015-06-05 2016-12-08 Oskar Frech Gmbh + Co. Kg Angusssystem für eine Druckgießform
WO2016193458A1 (de) 2015-06-05 2016-12-08 Oskar Frech Gmbh + Co. Kg Heisskanal-angusssystem für eine druckgiessform
DE102015224410A1 (de) 2015-12-07 2017-06-08 Volkswagen Aktiengesellschaft Düse für Metall-Druckgussanwendungen

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DE102013101962B3 (de) * 2013-02-27 2014-05-22 Schuler Pressen Gmbh Gießvorrichtung und Gießverfahren
TW201442803A (zh) * 2013-05-06 2014-11-16 hui-long Li 壓鑄機之射出頭結構
DE102014018796A1 (de) * 2014-12-19 2016-06-23 Gebr. Krallmann Gmbh Fördervorrichtung für eine Metallschmelze in einem Spritzgussaggregat
DE102015100861B4 (de) * 2015-01-21 2018-07-19 TransMIT Gesellschaft für Technologietransfer mbH Heißkanal für eine Druckgussvorrichtung und Betriebsverfahren dafür
AT517860B1 (de) * 2015-10-27 2020-02-15 Christian Platzer Verfahren und Vorrichtung zur Herstellung zumindest eines Formteils
DE102015224414A1 (de) * 2015-12-07 2017-06-08 Volkswagen Aktiengesellschaft Gusseinrichtung
JP6772278B2 (ja) * 2016-03-01 2020-10-21 フェッロファクタ ゲーエムベーハー ダイカストノズルシステム
CN108568497A (zh) * 2017-03-09 2018-09-25 四川省宜宾普什驱动有限责任公司 一种高速铁路钢轨扣件专用热流道装置
AT522266A1 (de) * 2019-03-07 2020-09-15 Dynamic Metal Systems R & D Gmbh Verfahren und Vorrichtung zur Herstellung zumindest eines metallischen Bauteiles
CN110076316A (zh) * 2019-05-26 2019-08-02 深圳市宝田精工塑胶模具有限公司 一种锌合金产品的成型方法及锌合金成型模具
JP7403753B2 (ja) * 2019-12-09 2023-12-25 表面機能デザイン研究所合同会社 ダイキャスト装置及びダイキャスト製品の製造方法
CN110918924A (zh) * 2019-12-24 2020-03-27 深圳丰发一诺科技有限公司 一种用于金属制品的具有散热功能的铸造设备

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2295172A1 (de) 2007-05-24 2011-03-16 Oskar Frech GmbH + Co. KG Angussblockeinheit, Angusssystem und Steuerungseinrichtung für eine Druckgiessmaschine
DE102011017610B3 (de) * 2011-04-27 2012-06-21 Oskar Frech Gmbh + Co. Kg Gießkolben und Gießeinheit mit Absperrventil
WO2012146408A1 (de) 2011-04-27 2012-11-01 Oskar Frech Gmbh + Co. Kg Giesskolben und giesseinheit mit absperrventil
US9505053B2 (en) 2011-04-27 2016-11-29 Oskar Frech Gmbh + Co. Kg Casting plunger and casting unit with shut-off valve
DE102013105433B3 (de) * 2013-05-27 2014-05-22 Schuler Pressen Gmbh Gießvorrichtung mit einer Ringleitung und Gießverfahren
EP2835192A1 (de) 2013-05-27 2015-02-11 Schuler Pressen GmbH Gießvorrichtung mit einer Ringleitung und Gießverfahren
DE102015210403A1 (de) 2015-06-05 2016-12-08 Oskar Frech Gmbh + Co. Kg Angusssystem für eine Druckgießform
WO2016193458A1 (de) 2015-06-05 2016-12-08 Oskar Frech Gmbh + Co. Kg Heisskanal-angusssystem für eine druckgiessform
WO2016193397A1 (de) 2015-06-05 2016-12-08 Oskar Frech Gmbh + Co. Kg Angusssystem für eine druckgiessform
DE102015210400A1 (de) 2015-06-05 2016-12-08 Oskar Frech Gmbh + Co. Kg Heißkanal-Angusssystem für eine Druckgießform
DE102015224410A1 (de) 2015-12-07 2017-06-08 Volkswagen Aktiengesellschaft Düse für Metall-Druckgussanwendungen
DE102015224410B4 (de) * 2015-12-07 2020-11-19 Volkswagen Aktiengesellschaft Düse für Metall-Druckgussanwendungen

Also Published As

Publication number Publication date
TW568804B (en) 2004-01-01
ES2262479T3 (es) 2006-12-01
PL199992B1 (pl) 2008-11-28
CZ302980B6 (cs) 2012-02-01
PL350443A1 (en) 2002-05-06
CZ20013903A3 (cs) 2002-07-17
HK1043079B (zh) 2006-11-10
JP4620305B2 (ja) 2011-01-26
EP1201335A1 (de) 2002-05-02
JP2002144002A (ja) 2002-05-21
HK1043079A1 (en) 2002-09-06
US6830094B2 (en) 2004-12-14
US20020056537A1 (en) 2002-05-16
DE50012864D1 (de) 2006-07-06
ATE327849T1 (de) 2006-06-15

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