EP1080809A1 - Méthode pour contrôler la distribution de quantité de métal liquide - Google Patents

Méthode pour contrôler la distribution de quantité de métal liquide Download PDF

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Publication number
EP1080809A1
EP1080809A1 EP00114000A EP00114000A EP1080809A1 EP 1080809 A1 EP1080809 A1 EP 1080809A1 EP 00114000 A EP00114000 A EP 00114000A EP 00114000 A EP00114000 A EP 00114000A EP 1080809 A1 EP1080809 A1 EP 1080809A1
Authority
EP
European Patent Office
Prior art keywords
computer
melt
vacuum
vacuum valve
casting
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.)
Granted
Application number
EP00114000A
Other languages
German (de)
English (en)
Other versions
EP1080809B1 (fr
Inventor
Friedrich Georg Stummer
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.)
Mueller Weingarten AG
Original Assignee
Mueller Weingarten AG
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 Mueller Weingarten AG filed Critical Mueller Weingarten AG
Publication of EP1080809A1 publication Critical patent/EP1080809A1/fr
Application granted granted Critical
Publication of EP1080809B1 publication Critical patent/EP1080809B1/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
    • B22D17/32—Controlling equipment
    • 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
    • B22D17/14—Machines with evacuated die cavity
    • 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
    • B22D17/30—Accessories for supplying molten metal, e.g. in rations

Definitions

  • the invention relates to a method for regulating the Metal dosing of die casting machines where the Dosing is done by negative pressure.
  • a die casting machine which works according to the so-called vacuum die casting method.
  • the molten metal is sucked from a holding furnace into the casting chamber by means of a suction pipe by means of a vacuum, the vacuum being applied via a suction channel in the mold dividing surface of the casting mold.
  • the negative pressure applied to the casting mold should essentially fulfill two functions: On the one hand carry out the degassing of the casting chamber and the mold and on the other hand suck in the amount of metal required for the production of parts from the holding furnace into the casting chamber.
  • An essential factor for the quality of the cast workpieces is the dosing accuracy.
  • a high dosing accuracy also requires the corresponding adjustment of the machine parameters to achieve the desired process reliability.
  • DE 41 12 753 A1 A proven method for good dosing accuracy is disclosed in DE 41 12 753 A1.
  • the level in the measuring device is checked by a sensor Casting chamber measured.
  • this procedure is only suitable for cold chamber die casting machines where the Dosage e.g. through a measuring spoon into an opening of the Casting chamber takes place.
  • the function and the measuring accuracy of a sensor for level measurement is in EP 0 014 301 described in detail.
  • One after the vacuum process operated die casting machine works in a kind closed system, i.e. an external dosage is found not instead.
  • an upward one Dosing opening in the casting chamber, as in the DE 41 12 753 described is not available and that Process of level measurement in the casting chamber not easily applicable.
  • the invention with the characterizing features of the claim 1 the task is to propose a method which is high for vacuum die casting machines Dosing accuracy of the molten metal guaranteed.
  • the essence of the invention now consists of the method to further develop the inventor's DE 41 12 753 A1, that use in vacuum die casting machines is possible is. Because a level measurement in the casting chamber does not show up is simple to carry out, the corresponding Measurement carried out in the holding furnace. To this end a probe is installed in the holding furnace, which Fill level of the melt and its change during the Dosing phase recorded. Since the invention is not based on measurement a level change is limited, but one proposes complete control loop, is from the signal of the An actual value is formed by the probe and this with a setpoint compared. The setpoint is determined from that for a optimal part production required parameters and with allowable tolerances.
  • the furnace filling can be exemplified by the furnace weight be determined or the temperature-dependent viscosity of the Molten metal through the appropriate evaluation of a Temperature measurement. Monitoring of the suction time is also necessary provided on a vacuum valve. A setpoint violation is an indication of a malfunction or a defective parts production when required Dosing quantity during this period not by a level sensor has been confirmed. All of these measures serve the goal of Quality increase and thus the minimization of Committee parts. Because the entire casting process is marked is due to a large number of influences, it is important that to master individual parameters safely. So depends on the Dosing accuracy not only the geometry and structure quality of the casting part, but also several to achieve them Setting parameters of the die casting machine.
  • Decisive for the dosing of the melt 6 in the Casting chamber 9 is the vacuum, the suction time over the Vacuum valve 5 is regulated. Influence on the dosing quantity have different parameters such as the size of the Vacuum, the dosing time as a function of the regulation of the Vacuum valve 5, the level of the melt 6 in the holding furnace 7, the suction height of the melt 6 based on the installation height of the Casting chamber 9, the temperature of the melt 6 also as Conclusion on the viscosity.
  • the invention is not based on the described Embodiment of the method limited. it includes also rather all professional training and Refinements within the scope of the inventive idea.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Medicinal Preparation (AREA)
EP00114000A 1999-08-30 2000-07-01 Méthode pour contrôler la distribution de quantité de métal liquide Expired - Lifetime EP1080809B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19941430 1999-08-30
DE19941430A DE19941430A1 (de) 1999-08-30 1999-08-30 Verfahren zur Regelung der Metalldosiermenge

Publications (2)

Publication Number Publication Date
EP1080809A1 true EP1080809A1 (fr) 2001-03-07
EP1080809B1 EP1080809B1 (fr) 2005-02-16

Family

ID=7920272

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00114000A Expired - Lifetime EP1080809B1 (fr) 1999-08-30 2000-07-01 Méthode pour contrôler la distribution de quantité de métal liquide

Country Status (6)

Country Link
US (1) US6379609B1 (fr)
EP (1) EP1080809B1 (fr)
JP (1) JP4660660B2 (fr)
AT (1) ATE289238T1 (fr)
DE (2) DE19941430A1 (fr)
ES (1) ES2237367T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002090021A1 (fr) * 2001-05-07 2002-11-14 Bühler Druckguss AG Procede de coulee sous pression et dispositif de coulee sous pression
CN106670441A (zh) * 2016-12-30 2017-05-17 北京航空航天大学 一种可实现金属熔体真空定量浇注的设备与方法

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7514033B1 (en) 2006-05-02 2009-04-07 Honda Motor Co., Ltd. Molten metal level burner output control for aluminum melt furnace
FR2951970B1 (fr) * 2009-11-05 2011-12-09 Peugeot Citroen Automobiles Sa Procede de controle de grappe en sortie de moule, en fonderie sous pression
JP5731922B2 (ja) * 2011-07-21 2015-06-10 本田技研工業株式会社 溶湯の供給方法及びその装置
DE102014222633B4 (de) 2013-12-05 2019-05-23 Heidelberger Druckmaschinen Ag Verfahren zur Herstellung einer Fertigeisenmarke
US9470457B2 (en) 2014-03-31 2016-10-18 Honda Motor Co., Ltd. Melt furnace, melt furnace control systems, and method of controlling a melt furnace
CN104259448A (zh) * 2014-10-14 2015-01-07 重庆大学 一种镁合金铸造方法及装置
ES2819773T3 (es) * 2015-05-20 2021-04-19 Alustrategy S R L Mejoras relativas a equipos para la fabricación de artículos de aleación ligera o similares
CN106424635A (zh) * 2016-08-29 2017-02-22 常州市蓝托金属制品有限公司 铝合金制造的真空压铸工艺
CN106424636A (zh) * 2016-08-29 2017-02-22 常州市蓝托金属制品有限公司 用于铝合金制造的真空压铸设备
CN109351943A (zh) * 2018-12-18 2019-02-19 深圳市银宝山新科技股份有限公司 一种铝合金低固相压铸控制方法及其系统
CN112548074A (zh) * 2019-09-26 2021-03-26 沈阳铸造研究所有限公司 一种调压充型高压凝固铸造装置与铸造方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0594961A1 (fr) * 1992-10-12 1994-05-04 Toyota Jidosha Kabushiki Kaisha Estimation de la température d'un métal liée à la consommation d'un tube de coulée qui est immergé dans un métal en fusion
EP0600324A1 (fr) * 1992-11-25 1994-06-08 Maschinenfabrik Müller-Weingarten AG Procédé pour l'obtention de pression réduite dans une machine à couler sous préssion
US5388633A (en) * 1992-02-13 1995-02-14 The Dow Chemical Company Method and apparatus for charging metal to a die cast

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3632099A (en) * 1969-08-14 1972-01-04 Westinghouse Electric Corp Molten metal supplying apparatus
IT1192344B (it) 1978-12-20 1988-03-31 Ceda Spa Misuratore di livello
DE3041340A1 (de) * 1980-11-03 1982-05-13 Maschinenfabrik Weingarten Ag, 7987 Weingarten Druckgiessverfahren zur herstellung von gasarmer, porenarmer und oxydarmer gussstuecke sowie druckgiessmaschine zur durchfuehrung des verfahrens
DE4112753A1 (de) 1991-04-19 1992-10-22 Mueller Weingarten Maschf Verfahren zur regelung von giessparametern in einer druckgiessmaschine
DE4123463A1 (de) * 1991-07-16 1993-01-21 Audi Ag Verfahren zur herstellung von gussstuecken mittels einer druckgiessmaschine
JP2991003B2 (ja) * 1993-05-19 1999-12-20 トヨタ自動車株式会社 ダイカストマシンの給湯装置
JPH0716727A (ja) * 1993-06-30 1995-01-20 Toyota Motor Corp 真空鋳造法
JPH07124728A (ja) * 1993-10-29 1995-05-16 Ube Ind Ltd 金属溶解保持炉
DE4403285A1 (de) * 1994-01-31 1995-08-03 Alexander Fischer Dosierofen
JP2820895B2 (ja) * 1994-09-19 1998-11-05 田辺工業株式会社 プリレベル給湯制御方法における給湯精度向上の方法
US5643528A (en) * 1995-06-06 1997-07-01 Musket System Design And Control Inc. Controlled magnesium melt process, system and components therefor
JPH0924454A (ja) * 1995-07-11 1997-01-28 Toyota Motor Corp 鋳造装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5388633A (en) * 1992-02-13 1995-02-14 The Dow Chemical Company Method and apparatus for charging metal to a die cast
EP0594961A1 (fr) * 1992-10-12 1994-05-04 Toyota Jidosha Kabushiki Kaisha Estimation de la température d'un métal liée à la consommation d'un tube de coulée qui est immergé dans un métal en fusion
EP0600324A1 (fr) * 1992-11-25 1994-06-08 Maschinenfabrik Müller-Weingarten AG Procédé pour l'obtention de pression réduite dans une machine à couler sous préssion

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002090021A1 (fr) * 2001-05-07 2002-11-14 Bühler Druckguss AG Procede de coulee sous pression et dispositif de coulee sous pression
CN106670441A (zh) * 2016-12-30 2017-05-17 北京航空航天大学 一种可实现金属熔体真空定量浇注的设备与方法
CN106670441B (zh) * 2016-12-30 2017-11-14 北京航空航天大学 一种可实现金属熔体真空定量浇注的设备与方法

Also Published As

Publication number Publication date
EP1080809B1 (fr) 2005-02-16
DE50009534D1 (de) 2005-03-24
ATE289238T1 (de) 2005-03-15
JP2001079654A (ja) 2001-03-27
DE19941430A1 (de) 2001-03-01
US6379609B1 (en) 2002-04-30
JP4660660B2 (ja) 2011-03-30
ES2237367T3 (es) 2005-08-01

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