EP2398609B2 - Giessverfahren von aluminiumlegierungen - Google Patents

Giessverfahren von aluminiumlegierungen Download PDF

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Publication number
EP2398609B2
EP2398609B2 EP10707100.3A EP10707100A EP2398609B2 EP 2398609 B2 EP2398609 B2 EP 2398609B2 EP 10707100 A EP10707100 A EP 10707100A EP 2398609 B2 EP2398609 B2 EP 2398609B2
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Prior art keywords
casting
gas
process according
dried gas
aluminum alloy
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French (fr)
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EP2398609B1 (de
EP2398609A1 (de
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Guillaume Bes
Robert Rey-Flandrin
Olivier Ribaud
Stéphane VERNEDE
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Constellium Issoire SAS
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Constellium Issoire SAS
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D21/00—Casting non-ferrous metals or metallic compounds so far as their metallurgical properties are of importance for the casting procedure; Selection of compositions therefor
    • B22D21/02—Casting exceedingly oxidisable non-ferrous metals, e.g. in inert atmosphere
    • B22D21/04—Casting aluminium or magnesium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/001—Continuous casting of metals, i.e. casting in indefinite lengths of specific alloys
    • B22D11/003—Aluminium alloys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/10—Supplying or treating molten metal
    • B22D11/11—Treating the molten metal
    • B22D11/116—Refining the metal
    • B22D11/117—Refining the metal by treating with gases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D21/00—Casting non-ferrous metals or metallic compounds so far as their metallurgical properties are of importance for the casting procedure; Selection of compositions therefor
    • B22D21/002—Castings of light metals
    • B22D21/007—Castings of light metals with low melting point, e.g. Al 659 degrees C, Mg 650 degrees C

Definitions

  • the invention relates to the casting of aluminum alloys, in particular the casting of alloys containing magnesium and/or lithium which are sensitive to oxidation.
  • beryllium has a certain toxicity which has notably led to its elimination in aluminum alloys used as food packaging. Calcium can cause edge cracks during hot rolling. It has also been proposed to protect the surface of the liquid metal by various devices.
  • the patent US 4,582,118 proposes using a non-reactive and non-combustible atmosphere, such as for example an atmosphere of argon, helium, neon, or krypton or even nitrogen or carbon dioxide, for the casting of aluminum alloys- lithium. The implementation of such methods is however very expensive.
  • the patent application EP 0 109 170 A1 describes the use of a baffle on the periphery of the casting loom to sweep the liquid metal surface with an inert gas (usually nitrogen and/or argon with or without chlorine or other halogen).
  • an inert gas usually nitrogen and/or argon with or without chlorine or other halogen.
  • carbon dioxide or flue gases to limit oxidation is also known from CN Cochran, DL Belitskus and DL Kinosz, Metallurgical Transcations B, Volume 8B, 1977, pages 323-331 .
  • the patent application EP 1 964 628 A1 describes a method for producing aluminum ingots in which at least one process step is carried out under an atmosphere containing a fluorinated gas.
  • the patent US 5,415,220 describes the use of molten salts of lithium chloride and potassium chloride to protect the surface of aluminium-lithium alloys during casting.
  • the use of molten salts has the disadvantage of the risk of contamination of the liquid metal with impurities as well as the difficulty of implementation.
  • the patent US 7,267,158 describes the forced addition of a moist gas, containing more than 0.005 kg/m 3 of water, to the surface of the molten metal so as to improve the surface quality of the cast ingots.
  • this process has the disadvantage of bringing the steam and the liquid aluminum into contact despite the dangers of explosion linked to the contact of the water and the liquid aluminum.
  • the document US-A-2005/000677 discloses a method of casting an aluminum alloy containing at least 0.1% by weight of Mg in which a liquid surface of said alloy is contacted during solidification with a dry gas comprising at least about 2% by volume of oxygen and whose water partial pressure has a dew point of 0°C.
  • the problem posed is to find a casting process suitable for the most oxidizable aluminum alloys, in particular aluminum alloys containing magnesium and/or lithium, which does not have these drawbacks and makes it possible to obtain cast ingots free from surface defects and pollution, in complete safety.
  • a first object of the invention is a method of casting an aluminum alloy containing at least approximately 0.1% Mg and/or at least approximately 0.1% Li according to claim 1.
  • the designation of the alloys follows the rules of The Aluminum Association, known to those skilled in the art.
  • the chemical composition of standardized aluminum alloys is defined for example in standard EN 573-3. Unless otherwise stated, the definitions of the European standard EN 12258-1 apply.
  • the term “casting installation” is used here to refer to all the devices making it possible to transform a metal in any form into a semi-finished product in raw form by passing through the liquid phase.
  • a casting installation can include many devices such as one or more furnaces necessary for melting the metal and/or maintaining it at temperature and/or for preparing the liquid metal and adjusting the composition, one or several tanks (or “pockets") intended to carry out a treatment for the elimination of impurities dissolved and/or suspended in the liquid metal, this treatment possibly consisting in filtering the liquid metal on a filter medium in a "filtration pocket” or introducing a so-called “treatment” gas into the bath, which may be inert or reactive, in a “degassing ladle", a device for solidifying the liquid metal (or “casting machine"), for example by vertical semi-continuous casting by direct cooling, horizontal casting, continuous wire casting, continuous strip casting between rolls, continuous strip casting between caterpillars, which may include devices such as a mold (or “mold”) ), a liquid metal supply device (or “nozzle”) a cooling system, these various furnaces, tanks and solidification devices being interconnected by channels called “chutes” in which the liquid metal can be transported.
  • devices such
  • the present inventors have found that, when brought into contact with a dry gas comprising at least approximately 2% by volume of oxygen and whose water partial pressure is less than approximately 150 Pa, a surface of liquid aluminum s oxidizes little, which makes it possible to make castings free from unacceptable surface defects.
  • a surface of liquid aluminum s oxidizes little, which makes it possible to make castings free from unacceptable surface defects.
  • This result is surprising because it is commonly accepted that, on the contrary, the humidity contained in the air makes it possible to limit the oxidation of aluminum alloys in the liquid state.
  • this surprising effect is implemented in a casting process.
  • the method according to the invention is useful for highly oxidizable aluminum alloys, containing at least approximately 0.1% of Mg and/or at least approximately 0.1% of Li.
  • the method according to the invention is particularly useful for alloys of families 2XXX, 3XXX, 5XXX, 6XXX, 7XXX or 8XXX, in particular when these alloys do not contain any deliberate addition of beryllium and/or calcium.
  • the process according to the invention is particularly advantageous for alloys containing less than 3 ppm of beryllium or even less than 1 ppm of beryllium and/or less than 15 ppm of calcium or even less than 5 ppm of calcium.
  • alloys for which the process according to the invention is particularly advantageous are, in the family of 2XXX alloys, the alloys AA2014, AA2017, AA2024, AA2024A, AA2027, AA2139, AA2050, AA2195, AA2196, AA2098, AA2198, AA2214 , AA2219, AA2524 in the 3XXX alloy family AA3003, AA3005, AA3104, AA3915 alloys in the 5XXX alloy family 7XXX alloys AA7010, AA7020, AA7040, AA7140, AA7050, AA7055, AA7056, AA7075, AA7449, AA7450, AA7475, AA7081, AA7085, AA7910, AA7975.
  • the dried gas must contain at least about 2% by volume of oxygen and have a water partial pressure of less than about 150 Pa, preferably less than 100 Pa and even more preferably less than 70 Pa. particularly advantageous invention, the partial water pressure is even less than 30 Pa, preferably less than 5 Pa and even more preferably less than 1 Pa.
  • the water partial pressure of a gas is also known as the vapor pressure.
  • the partial pressure of an ideal gas i in a mixture of ideal gases of total pressure P is defined as the pressure which would be exerted by the molecules of gas i if this gas alone occupied all the volume offered to the mixture.
  • the dew point of a gas is the temperature at which, while keeping current barometric conditions unchanged, the gas becomes saturated with water vapour.
  • a water partial pressure of 150 Pa corresponds to a dew point of -17.9°C and a quantity of water of 0.0013 kg/m 3 at this temperature.
  • a water partial pressure of 100 Pa corresponds to a dew point of -22.6°C and a quantity of water of 0.0009 kg/m 3 at this temperature.
  • a water partial pressure of 70 Pa corresponds to a dew point of -26.5°C and a quantity of water of 0.0006 kg/m 3 at this temperature.
  • the dried gas also advantageously comprises at least one gas selected from air, helium, argon, nitrogen, carbon dioxide, carbon monoxide, natural gas combustion products, methane, ethane, propane, natural gas, organic fluorinated compounds, organic chlorine compounds. Adding carbon dioxide to the dry gas can in some cases enhance the antioxidant effect.
  • the dry gas comprises between 1 and 10% by volume of CO 2
  • the CO 2 content of the dry gas is less than 1% by volume or even less than 0.1% by volume in another advantageous embodiment of the invention.
  • said dried gas is essentially air dried by any appropriate means to reach the desired water partial pressure.
  • the dried gas is brought into contact with a liquid surface of an aluminum alloy during most of the solidification of said alloy.
  • the bringing into contact of the gas with the surface is preferably carried out in such a way as to establish above this surface an atmosphere whose water content is substantially equal, generally different by less than 10% or 20%, to that of the dry gas, that is to say so as to avoid a significant diffusion of water vapor from the ambient air into said atmosphere.
  • this flow it is advantageous for this flow to be sufficient with respect to the liquid surface subjected to the dry flow so as to establish said atmosphere, if this flow is too low, the composition of said atmosphere may be influenced too much by the external atmosphere and its water content may no longer correspond to the desired content.
  • the liquid surface of the aluminum alloy brought into contact with the dried gas represents at least 10%, preferably at least 25% and even more preferably at least 50% of the total liquid surface of said aluminum alloy.
  • a liquid surface of the aluminum alloy is kept in contact with the dry gas during most of the solidification.
  • an increase in the flow rate of a flow of dry gas makes it possible in certain cases to make furrows disappear in the cast product.
  • the contact between the liquid surface and the dried gas can possibly be eliminated before the end of the casting, in particular when a zone is reached which will be cut off during the following operations.
  • a liquid surface of the aluminum alloy is kept in contact with the dry gas for at least 50% or even at least 90% of the solidification.
  • the present invention applies to various casting processes and preferably to a casting process chosen from among vertical semi-continuous casting by direct cooling, horizontal casting, continuous casting of wire, continuous casting of strips between rolls, continuous casting of strips between caterpillars (“belt caster”).
  • the semi-continuous process of vertical casting by direct cooling of aluminum alloys known to those skilled in the art in particular by its name in English "Direct Chill casting” or "DC casting”, is a preferred process in the context of the present invention.
  • an aluminum alloy is poured into an ingot mold having a false bottom by moving vertically and continuously the false bottom so as to maintain a substantially constant level of liquid metal during the solidification of the alloy, the solidified faces being cooled directly with water.
  • the figure 1 illustrates this process.
  • the aluminum alloy is fed through a conduit (4) into a mold (3) placed on a false bottom (21).
  • the aluminum alloy solidifies by direct cooling (5).
  • the solidifying aluminum alloy (1) has at least one solid surface (11, 12, 13) and at least one liquid state aluminum alloy surface which can be coated with oxides, which is called “liquid surface” in the present description (14, 15).
  • a descender (2) makes it possible to gradually lower the alloy during solidification so as to maintain the vertical position of the liquid aluminum surface (14, 15) substantially constant.
  • the method according to the invention is particularly advantageous for the casting of plates and billets by vertical semi-continuous casting by direct cooling.
  • the process according to the invention is particularly advantageous for the casting of plates of large dimensions, in particular with a section greater than 0.5 m 2 .
  • the device is fixed around a liquid metal injector so as to introduce the dried gas from the center of the liquid surface towards its periphery and/or from the periphery towards the center.
  • a device for the supply of gas in the case of semi-continuous vertical casting by direct cooling is illustrated by the figure 2 .
  • the dry gas is supplied by means of a device (6) fixed around the liquid metal injector (4) so that the flow of dry gas (7) is directed from the core of said liquid surface towards its periphery and/or from the periphery towards the core in the liquid metal injection zone.
  • the gas supply device can be fixed on a dam retaining the oxides (“dross dam”) which is positioned around the liquid metal injection zone.
  • the dry gas from the casting process according to the invention can also be used in other parts of a casting installation on a liquid surface of aluminum alloys containing at least about 0.1% Mg and/or at least about 0.1% Li, to minimize oxidation.
  • a casting installation includes several other devices in which liquid surfaces of aluminum alloy are in contact with the atmosphere.
  • the dried gas can advantageously be used to limit the oxidation of the liquid surface of alloys in a furnace, in particular melting or holding, in a treatment tank such as a filtration ladle or a degassing ladle or in a transfer channel such as a chute.
  • conditions for using the dried gas and/or an aluminum alloy composition similar to those of the process according to the invention are preferably used, in particular concerning the supply of the dried gas.
  • the dried gas is also used in at least one furnace, in particular melting or holding and/or in at least one treatment tank such as a filtration ladle or a degassing ladle and/or in at least one transfer channel such as a chute .
  • the products obtained by a process according to the invention and/or by a use according to the invention can optionally be wrought in particular by rolling, spinning and/or forging, so as to obtain in particular sheets and profiles.
  • the invention allows in particular the casting of the most oxidizable aluminum alloys, in particular aluminum alloys containing magnesium and/or lithium, without using additives such as beryllium and/or calcium and without using expensive device and/or gas while obtaining cast ingots free from surface defects and pollution, in complete safety.
  • the oxidation of the liquid metal was measured by thermogravimetric analysis.
  • a crucible containing the liquid metal is maintained at a controlled temperature.
  • This crucible contains approximately 5 kg of metal, for a diameter of 100 mm.
  • the significant size of these experiments which makes it possible to take macroscopic effects into account, may explain the differences with the experiments carried out on very small quantities often reported in the prior art.
  • the mass of the sample is weighed continuously. The weight gain is due to the oxidation of the liquid metal.
  • a diagram illustrating this experiment is presented on the figure 4 .
  • the dried gas (7) is brought to the surface of the liquid metal (14) by a metal tube (6) with an inside diameter of 4 mm, arranged obliquely with respect to this surface.
  • the balance (92) makes it possible to continuously measure the weight of the crucible (93) and of its contents in situ in the furnace (91).
  • the distance between the orifice of the metal tube and the surface of the liquid metal was 120 mm.
  • the air used can be dried until it reaches a water partial pressure of less than 70 Pa.
  • Three alloys were studied: the AA7449, AA2196 and AA5182 alloys. The conditions of the different runs are summarized in Table 1. In all runs, beryllium and calcium content were similar and less than 1 ppm and 10 ppm, respectively. Table 1.
  • thermobalance Trials alloy Gas flow (1/min) Gas Water partial pressure of the injected gas (Pa) 1 AA5182 7.9 Dry air ⁇ 70Pa 2 AA5182 0 Ambiant air > 600Pa 3 AA2196 7.9 Dry air ⁇ 70Pa 4 AA2196 0 Ambiant air > 600Pa 5 AA7449 4.1 Dry air ⁇ 70Pa 6 AA7449 3.8 Ambiant air > 600Pa 7 AA7449 0 Ambiant air > 600Pa 8 AA7449 4.1 Dry air 180Pa 9 AA7449 3.8 Dry air 600Pa
  • the figures 5 to 8 present the results obtained.
  • the figure 5 shows the results obtained with the AA7449 alloy. Significantly lower weight gains are obtained for test 5 for which a very dry air flow was carried out. Bringing a liquid surface into contact with dry air whose water partial pressure is still 600 Pa (dew point of -0.2°C, test 9) or even 180 Pa (dew point -15.6°C, test 8) do not significantly limit oxidation. Likewise, the ambient air does not make it possible to limit the oxidation with or without flow (tests 6 and 7), which excludes a purely mechanical effect linked to a flow of gas.
  • the figure 6 shows the results obtained with the AA5182 alloy. A significantly lower oxidation in the presence of a very dry air flow is also observed for this alloy.
  • the figure 7 shows the results obtained with the AA2196 alloy. Again, for this alloy, significantly lower oxidation is observed in the presence of a very dry air flow.
  • the figure 8a is a photograph of the surface obtained after the test in the case of test 7 (ambient air). A very significant oxidation is observed, leading to oxidation products in the characteristic form of dark colored cauliflower.
  • the figure 8b is a photograph of the surface obtained after the test in the case of test 5 (dry air). A uniform surface of light gray color corresponding to a thin oxide film is observed.
  • Plates of rectangular section 446 mm x 2160 mm in AA7449 alloy were cast vertically using a semi-continuous direct-chill casting (DC-cast) installation, using an AlTiC quench.
  • the length of the plates obtained was between 900 mm and 4000 mm.
  • the beryllium content of the alloy was less than 1 ppm and the calcium content was less than 15 ppm.
  • the picture 3 illustrates the gas supply device having been used to supply dry air during the casting of the plates.
  • the device consists of 4 tubes (611, 612, 621 and 622) regularly pierced with orifices (63) making it possible to inject the dried gas (7) onto the liquid surface of the aluminum alloy.
  • the tubes are connected by screw connections (9) to form a rectangle.
  • the tubes are supplied with gas by two of these screwed connections, by two pipes (81) and (82).
  • the dried gas was dry air with a water partial pressure of 60 Pa, containing in some cases 5% by volume of CO 2 .
  • Table 2 describes the conditions of the various tests carried out as well as the results obtained. Table 2. Casting test condition and results obtained. Test Cast length [mm] dry air flow [m 3 /h] (cast length) % CO2 of dry air flow comments 21 917 Any - Long ( ⁇ 200mm) and deep vertical furrows 22 2776 None (Startup) - Long ( ⁇ 200mm) and deep vertical furrows 22 (1150mm) 5% No furrow 23 3575 22 (Start) 0% A few short (-40 mm) and shallow vertical furrows 27 (1150mm) 0% A few short (-40 mm) and shallow vertical furrows 32 (2500mm) 0% No furrow

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Claims (11)

  1. Verfahren zum Gießen einer Aluminiumlegierung, die mindestens 0,1% Mg und/oder mindestens 0,1% Li enthält, wobei eine flüssige Oberfläche der Aluminiumlegierung in der Gießmaschine während eines Großteils der Erstarrung mit einem getrockneten Gas in Kontakt gebracht wird, das mindestens 2 Vol.-% Sauerstoff enthält und dessen Wasserpartialdruck niedriger als 150 Pa ist, wobei das Gas mittels einer Vorrichtung (6) zugeführt wird, die um die Flüssigmetalleinspritzdüse (4) herum befestigt ist, so dass der getrocknete Strom vom Kern der flüssigen Oberfläche zu ihrer Peripherie und/oder von der Peripherie zum Kern in der Flüssigmetalleinspritzzone geleitet wird.
  2. Verfahren nach Anspruch 1, wobei der Wasserpartialdruck des getrockneten Gases niedriger als 100 Pa und vorzugsweise niedriger als 70 Pa ist.
  3. Verfahren nach Anspruch 1 oder 2, wobei das Inkontaktbringen des Gases mit der Oberfläche so erfolgt, dass über der Oberfläche eine Atmosphäre gebildet wird, deren Wasseranteil im Wesentlichen gleich dem des getrockneten Gases ist.
  4. Verfahren nach irgendeinem der Ansprüche 1 bis 3, wobei die dem getrockneten Gasstrom ausgesetzte flüssige Oberfläche der Aluminiumlegierung mindestens 10 %, bevorzugt mindestens 25 % und besonders bevorzugt mindestens 50 % der gesamten flüssigen Oberfläche der Aluminiumlegierung darstellt.
  5. Verfahren nach irgendeinem der Ansprüche 1 bis 4, wobei die Aluminiumlegierung eine Legierung der Familie 2XXX, 3XXX, 5XXX, 6XXX, 7XXX oder 8XXX ist.
  6. Verfahren nach Anspruch 5, wobei die Aluminiumlegierung keine gewollte Beimischung von Beryllium und/oder Calcium enthält.
  7. Verfahren nach irgendeinem der Ansprüche 1 bis 6, wobei das getrocknete Gas zudem wenigstens ein Gas umfasst, ausgewählt aus Luft, Helium, Argon, Stickstoff, Kohlendioxid, Kohlenmonoxid, Verbrennungsprodukten von Erdgas, Methan, Ethan, Propan, Erdgas, organischen Fluorverbindungen, organischen Chlorverbindungen.
  8. Verfahren nach Anspruch 7, wobei das getrocknete Gas im Wesentlichen Luft ist.
  9. Verfahren nach irgendeinem der Ansprüche 1 bis 8, wobei der CO2-Gehalt des getrockneten Gases niedriger als 1 Vol.-% und vorzugsweise niedriger als 0,1 Vol.-% ist.
  10. Gießverfahren nach irgendeinem der Ansprüche 1 bis 9, ausgewählt aus halbkontinuierlichem Vertikalgießen mit direkter Kühlung, Horizontalgießen, Drahtgießen, Bandgießen zwischen Walzen, Bandgießen zwischen Raupen.
  11. Gießverfahren nach irgendeinem der Ansprüche 1 bis 10, wobei das getrocknete Gas zudem in wenigstens einem Ofen, insbesondere einem Schmelzofen oder Warmhalteofen, und/oder in mindestens einem Behandlungsbehälter wie einer Filtrierpfanne oder einer Entgasungspfanne und/oder in wenigstens einem Überführungskanal wie einer Rinne verwendet wird.
EP10707100.3A 2009-02-20 2010-02-15 Giessverfahren von aluminiumlegierungen Active EP2398609B2 (de)

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DE602010003451T DE602010003451T8 (de) 2009-02-20 2010-02-15 Giessverfahren für aluminiumlegierungen

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0900780A FR2942479B1 (fr) 2009-02-20 2009-02-20 Procede de coulee pour alliages d'aluminium
US28659409P 2009-12-15 2009-12-15
PCT/FR2010/000122 WO2010094852A1 (fr) 2009-02-20 2010-02-15 Procédé de coulée pour alliages d'aluminium

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EP2398609B1 EP2398609B1 (de) 2012-10-31
EP2398609B2 true EP2398609B2 (de) 2022-01-19

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EP (1) EP2398609B2 (de)
KR (1) KR101742330B1 (de)
CN (1) CN102325611B (de)
BR (1) BRPI1008406A2 (de)
CA (1) CA2753089C (de)
DE (1) DE602010003451T8 (de)
ES (1) ES2398633T5 (de)
FR (1) FR2942479B1 (de)
WO (1) WO2010094852A1 (de)

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US8365808B1 (en) 2012-05-17 2013-02-05 Almex USA, Inc. Process and apparatus for minimizing the potential for explosions in the direct chill casting of aluminum lithium alloys
US8479802B1 (en) * 2012-05-17 2013-07-09 Almex USA, Inc. Apparatus for casting aluminum lithium alloys
WO2014121295A1 (en) 2013-02-04 2014-08-07 Almex USA, Inc. Process and apparatus for minimizing the potential for explosions in the direct chill casting aluminum lithium alloys
US9936541B2 (en) 2013-11-23 2018-04-03 Almex USA, Inc. Alloy melting and holding furnace
CN107532849B (zh) * 2015-02-18 2019-09-06 应达公司 用于活性金属和合金的电感应熔炼和保温炉
CN109158575A (zh) * 2018-09-12 2019-01-08 中国航发哈尔滨东安发动机有限公司 一种大型镁合金浇注防燃方法
CN110193588B (zh) * 2019-07-10 2021-01-12 东北大学 一种铝锂合金低频方波电磁连铸装置及方法
CN111036869A (zh) * 2019-12-30 2020-04-21 西南铝业（集团）有限责任公司 一种铸造工艺及铸造系统
CN118064747B (zh) * 2024-04-15 2024-07-09 湖南中创空天新材料股份有限公司 一种铝锂合金铸锭高安全性的制备方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2160393A (en) † 1936-11-16 1939-05-30 George M Trefts Pressure vessel of the boiler type and method of producing same
GB745769A (en) † 1952-12-15 1956-02-29 Kaiser Aluminium Chem Corp Improvements in or relating to the treatment of light metals
GB1065806A (en) † 1965-04-01 1967-04-19 Foseco Int Treatment of molten metals
EP0216393A1 (de) † 1985-09-27 1987-04-01 Showa Aluminum Corporation Verfahren zur Entfernung von Wasserstoffgas und nichtmetallischen Verunreinigungen aus Aluminiumschmelzen
JPS62240141A (ja) † 1986-04-11 1987-10-20 Showa Alum Corp 溶融金属処理装置
JPH0237954A (ja) † 1988-07-27 1990-02-07 Asahi Tec Corp 低圧鋳造装置
JP2000176606A (ja) † 1998-12-17 2000-06-27 Sumitomo Chem Co Ltd 高純度アルミニウムおよび合金の連続鋳造材の製造方法、該鋳造材、並びにそれを用いたアルミニウム合金単結晶ターゲット

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2336512A (en) 1939-09-19 1943-12-14 Aluminum Co Of America Aluminum base alloy
DE3368883D1 (en) 1982-10-15 1987-02-12 Alcan Int Ltd Improvements in casting aluminium alloys
GB8309349D0 (en) * 1983-04-06 1983-05-11 Alcan Int Ltd Heat treatment of aluminium alloys containing lithium
US4709740A (en) * 1983-11-10 1987-12-01 Aluminum Company Of America Direct chill casting of aluminum-lithium alloys
EP0142341B1 (de) * 1983-11-10 1988-07-13 Aluminum Company Of America Strangguss
US4582118A (en) 1983-11-10 1986-04-15 Aluminum Company Of America Direct chill casting under protective atmosphere
US4607679A (en) * 1984-12-06 1986-08-26 Aluminum Company Of America Providing oligomer moisture barrier in direct chill casting of aluminum-lithium alloy
FR2607739B1 (fr) * 1986-12-03 1989-04-14 Cegedur Procede et dispositif de coulee dans une fosse, sans risque d'explosion, de l'aluminium et de ses alliages, notamment avec le lithium
US4987950A (en) * 1989-06-14 1991-01-29 Aluminum Company Of America Method and apparatus for controlling the heat transfer of liquid coolant in continuous casting
US5415220A (en) 1993-03-22 1995-05-16 Reynolds Metals Company Direct chill casting of aluminum-lithium alloys under salt cover
US6412164B1 (en) 2000-10-10 2002-07-02 Alcoa Inc. Aluminum alloys having improved cast surface quality
US7267158B2 (en) * 2003-07-02 2007-09-11 Alcoa Inc. Control of oxide growth on molten aluminum during casting using a high moisture atmosphere
JP4504914B2 (ja) * 2005-12-19 2010-07-14 株式会社神戸製鋼所 アルミニウム鋳塊の製造方法、アルミニウム鋳塊、およびアルミニウム鋳塊の製造用保護ガス

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2160393A (en) † 1936-11-16 1939-05-30 George M Trefts Pressure vessel of the boiler type and method of producing same
GB745769A (en) † 1952-12-15 1956-02-29 Kaiser Aluminium Chem Corp Improvements in or relating to the treatment of light metals
GB1065806A (en) † 1965-04-01 1967-04-19 Foseco Int Treatment of molten metals
EP0216393A1 (de) † 1985-09-27 1987-04-01 Showa Aluminum Corporation Verfahren zur Entfernung von Wasserstoffgas und nichtmetallischen Verunreinigungen aus Aluminiumschmelzen
JPS62240141A (ja) † 1986-04-11 1987-10-20 Showa Alum Corp 溶融金属処理装置
JPH0237954A (ja) † 1988-07-27 1990-02-07 Asahi Tec Corp 低圧鋳造装置
JP2000176606A (ja) † 1998-12-17 2000-06-27 Sumitomo Chem Co Ltd 高純度アルミニウムおよび合金の連続鋳造材の製造方法、該鋳造材、並びにそれを用いたアルミニウム合金単結晶ターゲット

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Cochran C.N. et al: "Oxidation of Aluminium-Magnesium Melst in Air, Oxygen, Flue Gas and Carbon dioxide", Metallurgical Transactions B, vol. 8B, jun 1977, p. 323-332 †
Wagstaff, "Air slip air casting technology mold", sales brochure, 2007 †

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EP2398609B1 (de) 2012-10-31
CN102325611A (zh) 2012-01-18
FR2942479A1 (fr) 2010-08-27
DE602010003451T8 (de) 2013-04-25
US8302657B2 (en) 2012-11-06
WO2010094852A1 (fr) 2010-08-26
EP2398609A1 (de) 2011-12-28
US20100212855A1 (en) 2010-08-26
KR101742330B1 (ko) 2017-05-31
DE10707100T1 (de) 2012-09-06
ES2398633T3 (es) 2013-03-20
BRPI1008406A2 (pt) 2016-03-15
CA2753089A1 (fr) 2010-08-26
KR20110128880A (ko) 2011-11-30
ES2398633T5 (es) 2022-05-06
CN102325611B (zh) 2013-09-04
CA2753089C (fr) 2019-02-26
FR2942479B1 (fr) 2011-02-25

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