EP1687107B8 - Vorrichtung zum giessen von artikeln aus aluminium, aluminiumlegierungen, leichtmetalllegierungen und dergleichen - Google Patents

Vorrichtung zum giessen von artikeln aus aluminium, aluminiumlegierungen, leichtmetalllegierungen und dergleichen Download PDF

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Publication number
EP1687107B8
EP1687107B8 EP04797599A EP04797599A EP1687107B8 EP 1687107 B8 EP1687107 B8 EP 1687107B8 EP 04797599 A EP04797599 A EP 04797599A EP 04797599 A EP04797599 A EP 04797599A EP 1687107 B8 EP1687107 B8 EP 1687107B8
Authority
EP
European Patent Office
Prior art keywords
liquid metal
aluminum
die
flow control
control element
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.)
Not-in-force
Application number
EP04797599A
Other languages
English (en)
French (fr)
Other versions
EP1687107B1 (de
EP1687107B2 (de
EP1687107A2 (de
Inventor
Claudio Frulla
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.)
Hydromec SRL
Original Assignee
HCF Srl Hybrid Casting Forging
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
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Application filed by HCF Srl Hybrid Casting Forging filed Critical HCF Srl Hybrid Casting Forging
Publication of EP1687107A2 publication Critical patent/EP1687107A2/de
Publication of EP1687107B1 publication Critical patent/EP1687107B1/de
Application granted granted Critical
Publication of EP1687107B8 publication Critical patent/EP1687107B8/de
Publication of EP1687107B2 publication Critical patent/EP1687107B2/de
Anticipated expiration legal-status Critical
Not-in-force legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D18/00—Pressure casting; Vacuum casting
    • B22D18/08—Controlling, supervising, e.g. for safety reasons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D18/00—Pressure casting; Vacuum casting
    • B22D18/02—Pressure casting making use of mechanical pressure devices, e.g. cast-forging
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D18/00—Pressure casting; Vacuum casting
    • B22D18/04—Low pressure casting, i.e. making use of pressures up to a few bars to fill the mould
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D2/00—Arrangement of indicating or measuring devices, e.g. for temperature or viscosity of the fused mass
    • B22D2/003—Arrangement of indicating or measuring devices, e.g. for temperature or viscosity of the fused mass for the level of the molten metal

Definitions

  • WO 03/066254 provides an apparatus for forming aluminum articles, which is constituted by a lower die and by and upper die that can be coupled one another.
  • the liquid metal is introduced by means of a feed duct that approaches from below and is connected to a furnace, so that the liquid metal exits directly into a concave portion of a lower impression formed in the lower die.
  • the upper die is provided with a movable plug, which forms the upper impression, mates with the lower impression in order to form the shape of the product being cast, and can move so as to close the shape and form in practice an element for blocking the port for connection to the liquid metal feed duct.
  • This solution which has proved to be quite valid in many respects, is susceptible of improvements especially as regards the possibility to provide articles that have a substantial extension in the direction in which the plug slides; with known solutions, dosage may in fact be difficult, especially when the plug makes contact with the liquid metal before the connecting port is closed, and therefore difficulties can occur in correctly dosing the product.
  • any overflow of the product during closure of the die may cause deposits at such port, and therefore over time substantial inaccuracies in production would occur.
  • an object of the invention is to provide an apparatus that allows to achieve considerable process uniformity, further providing an always perfect dosage of the material that is introduced in the casting impression.
  • Another object of the present invention is to provide an apparatus that allows to cast items in a shorter time, thus contributing to a significant reduction in production costs.
  • Another object of the present invention is to provide an apparatus that thanks to its particular constructive characteristics is capable of giving the greatest assurances of reliability and safety in use and further provides products that are highly competitive from a merely economical standpoint.
  • an apparatus for casting articles made of aluminum, aluminum alloys, light alloys and the like comprising, on a platen, at least one lower die and at least one upper die, a duct for introducing liquid metal that approaches from below and is connected to a furnace leading into said at least one lower die, said at least one lower die forming at least one lower impression which, in cooperation with an upper impression of said upper die, provides a region for containing a dosed quantity of liquid metal, characterized in that it comprises, on said at least one upper die, a flow control element that acts on the connecting port of said feed duct, and a compaction plug, which forms at least one portion of said upper impression and is adapted to perform a translational motion independently of said flow control element in order to provide the article being cast.
  • Figure 1 is a sectional view of the apparatus with the upper die spaced from the lower die
  • Figure 2 is a sectional view of the apparatus with the die in closed position
  • Figure 3 is a view of the step for introducing liquid metal
  • Figure 4 is a view of the apparatus after stopping introduction of liquid metal and after the return of the excess liquid metal into the feed tube of the furnace
  • Figure 5 is a view of the step for closing the connecting port
  • Figure 6 is a view of the descent of the plug for compacting the article being cast
  • Figure 7 is a view of the apparatus during the extraction of the cast article.
  • the apparatus for casting articles made of aluminum, alurninum alloys, light alloys and the like comprises a platen, generally designated by the reference numeral 1, which supports a lower die 2, with which an upper die 3 cooperates, the upper die being movable toward and away from the lower die.
  • a duct 4 for introducing liquid metal which approaches from below and is connected to a furnace for the liquid metal, which is not shown in the drawings and is preferably of the pressurized type.
  • the term “below” refers to a normal "use” position of the apparatus as shown in the figures, and is not intended to be interpreted in a limiting way.
  • the feed duct 4 passes through the platen and along its extension conventional heating means for keeping the metal liquid are provided.
  • the lower die forms a lower impression, designated by the reference numeral 10, which in cooperation with an upper impression 11 provides a region for containing a dosed quantity of liquid metal and forms the contour of the product to be produced.
  • the impression 11 is formed partially by the upper die 3 and by a compaction plug 20, which can move with respect to the upper die 3 and supports a flow control element 30, which acts on the connecting port 5 of the feed duct 4 in order to close hermetically the contour being formed.
  • the flow control element 30 is connected to a piston 31, which can move in a chamber 32 formed in the compaction plug, so as to be able to have an independent movement between the flow control element 30 and the compaction plug 20.
  • a level sensor 40 is provided, which is designed to control the infeed of liquid metal, in particular to stop the rise of the liquid metal.
  • liquid metal begins to be introduced by means of the feed duct 4, so that the metal overflows in order to fill the portion of the contour that is arranged at a lower level than the connecting port of the feed duct 4.
  • the level sensor 40 When the liquid metal reaches the level sensor 40, its inflow is stopped and the liquid metal descends again; the liquid metal that remains in the die is arranged flush with the upper port of the feed duct, as shown in Figure 4, thus obtaining the dosed quantity.
  • the flow control element 30 is actuated ( Figure 5), closing the connecting port, with the assurance that a preset quantity of liquid metal has been introduced in the contour delimited by the lower and upper impressions.
  • the compaction plug is operated and displaces the liquid metal, completely filling the die and at the same time allowing to uniform and compact the pressure inside the metal, obtaining accordingly a finished product that has undergone a compaction that allows to obtain parts having considerable structural uniformity and improved mechanical strength.
  • the die is opened ( Figure 7) and it is possible to subsequently extract the part.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Forging (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Table Devices Or Equipment (AREA)
  • Lubricants (AREA)
  • Telephone Function (AREA)
EP04797599.0A 2003-11-12 2004-11-04 Vorrichtung zum giessen von artikeln aus aluminium, aluminiumlegierungen, leichtmetalllegierungen und dergleichen Not-in-force EP1687107B2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT002186A ITMI20032186A1 (it) 2003-11-12 2003-11-12 Apparecchiatuira per lo stampaggio di oggetti in alluminio,
PCT/EP2004/012473 WO2005049248A2 (en) 2003-11-12 2004-11-04 Apparatus for casting articles made of aluminum, aluminum alloys, light alloys and the like

Publications (4)

Publication Number Publication Date
EP1687107A2 EP1687107A2 (de) 2006-08-09
EP1687107B1 EP1687107B1 (de) 2010-09-29
EP1687107B8 true EP1687107B8 (de) 2010-11-03
EP1687107B2 EP1687107B2 (de) 2014-08-13

Family

ID=34611230

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04797599.0A Not-in-force EP1687107B2 (de) 2003-11-12 2004-11-04 Vorrichtung zum giessen von artikeln aus aluminium, aluminiumlegierungen, leichtmetalllegierungen und dergleichen

Country Status (5)

Country Link
EP (1) EP1687107B2 (de)
AT (1) ATE482781T1 (de)
DE (1) DE602004029387D1 (de)
IT (1) ITMI20032186A1 (de)
WO (1) WO2005049248A2 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009051879B3 (de) * 2009-11-04 2011-06-01 Baumgartner, Heinrich G. Metall-Druckgussmaschine
US9475119B2 (en) 2012-08-03 2016-10-25 General Electric Company Molded articles
ITUB20152405A1 (it) * 2015-07-22 2017-01-22 Hydromec S R L Procedimento per la realizzazione di oggetti in alluminio, leghe di alluminio, leghe leggere, ottone, bronzo e simili
ITUB20155732A1 (it) 2015-11-19 2017-05-19 Idra S R L Procedimento e apparecchiatura per lo stampaggio di oggetti in alluminio, leghe di alluminio, leghe leggere, ottone e simili
IT201800007754A1 (it) 2018-08-02 2020-02-02 Idra Srl Procedimento e apparecchiatura per lo stampaggio di oggetti in alluminio, leghe di alluminio, leghe leggere, ottone e simili.
CN114433770A (zh) * 2021-12-27 2022-05-06 芜湖三联锻造股份有限公司 一种法兰类零件锻造用晶粒度优化装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5728662A (en) † 1980-07-30 1982-02-16 Nikkei Giken:Kk Pressure die-casting equipment for material having opened part
JPH0245942B2 (ja) † 1986-06-24 1990-10-12 Toshiba Machine Co Ltd Puranjakaatsuchuzohohooyobisochi
JPH01158320A (ja) † 1987-12-16 1989-06-21 Kobe Steel Ltd 金型内溶湯感知センサ
IT1268996B1 (it) † 1994-09-05 1997-03-18 Borli Engineering Srl Impianto di fusione multi stadi
BG63426B1 (bg) * 1999-02-01 2002-01-31 Любомир ПЕТКАНЧИН Метод и устройство за леене на детайли
ITMI20020223A1 (it) * 2002-02-07 2003-08-07 Claudio Frulla Apparecchiatura per la realizzazione di oggetti in alluminio leghe dialluminio leghe leggere e simili

Also Published As

Publication number Publication date
WO2005049248A2 (en) 2005-06-02
ITMI20032186A1 (it) 2005-05-13
EP1687107B1 (de) 2010-09-29
EP1687107B2 (de) 2014-08-13
EP1687107A2 (de) 2006-08-09
WO2005049248A3 (en) 2005-11-24
ATE482781T1 (de) 2010-10-15
DE602004029387D1 (de) 2010-11-11

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