EP2992983B1 - Aluminiumlegierung für druckguss und herstellungsverfahren dafür - Google Patents

Aluminiumlegierung für druckguss und herstellungsverfahren dafür Download PDF

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EP2992983B1
EP2992983B1 EP15183486.8A EP15183486A EP2992983B1 EP 2992983 B1 EP2992983 B1 EP 2992983B1 EP 15183486 A EP15183486 A EP 15183486A EP 2992983 B1 EP2992983 B1 EP 2992983B1
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weight
alloy
aluminum alloy
aluminum
iron
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French (fr)
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EP2992983A1 (de
Inventor
Yong-Wook Hwang
Dae-Uk KIM
Sung-Guk Kim
Bong-Gi Lee
Jung-Mok Lee
Il Huh
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Samsung Electronics Co Ltd
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Samsung Electronics Co Ltd
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    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C21/00—Alloys based on aluminium
    • C22C21/02—Alloys based on aluminium with silicon as the next major constituent
    • 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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • C22C1/02—Making non-ferrous alloys by melting
    • C22C1/026—Alloys based on aluminium

Definitions

  • Various embodiments of the present disclosure relate to an alloy for die casting and, for example, relate to an aluminum alloy for die casting and a manufacturing method thereof.
  • aluminum the second-most used metal after iron, is light and has excellent corrosion resistance and workability and high electrical and thermal conductivity, and may be used to manufacture various types of high-strength and high-corrosion-resistance alloys along with materials, such as Cu, Mg, Si, Zn, Mn, Ni, or the like. Accordingly, aluminum may be utilized in various applications, such as airplane manufacturing, household article manufacturing, architecture, vehicle manufacturing, and machinery manufacturing.
  • Aluminum alloys are classified according to the amount of aluminum they contain as well as the type of other metals that are present in them.
  • 1xxx series aluminum may be pure aluminum containing at least 99.00 wt % aluminum
  • 2xxx series alloys may include Al-Cu alloys
  • 3xxx series alloys may include Al-Mn alloys
  • 4xxx series alloys may include Al-Si alloys
  • 5xxx series alloys may include Al-Mg alloys
  • 6xxx series alloys may include Al-Mg-Si alloys
  • 7xxx alloys may include Al-Zn alloys.
  • US 8,409,374 B2 describes various aluminium alloys prepared by die casting having a tensile strength in the range of about 250 to 490 MPa.
  • KR 2012-0134680 describes an aluminum alloy material for an air compressor comprising 0.025-0.25weight% of Cu, 6.5-7.5 weight% of Si, 0.15-0.4 weight% of Fe, 0.25-0.45 weight% of Mg, 0.04-0.35 weight% of Mn, 0.02-0.35 weight% of Zn, 0.014-0.1 weight% of Ni, 0.1-0.2 weight% of Ti, 0.01-0.2 weight% of Cr, 0.007-0.05 weight% of Sn, and 90.15-92.884 weight% of Al.
  • An aluminum alloy comprising:4.0 to 10.0 weight % silicon (Si), 0.1 to 4.0 weight % magnesium (Mg), 0.1 to 1.0 weight % chromium (Cr), 0.05 to 1.0 weight % zinc (Zn), 0.05 to 1.0 weight % manganese (Mn), 0.01 to 1.0 weight % titanium (Ti), 0.001 to 0.5 weight % tin (Sn), 0.01 to 1 weight % zirconium (Zr), and balance aluminum and impurities, wherein at least one impurity included in the aluminum alloy is identified during a melting process through an ingredient analysis of each element included in of the aluminum alloy, wherein the at least one impurity is at least one of copper (Cu), nickel (Ni), or iron (Fe), wherein the copper (Cu) or nickel (Ni) is adjusted to be equal to or less than 0.05 weight% of the aluminum alloy, and wherein the iron (Fe) is adjusted to be equal to or less than 0.3 weight% of the aluminum alloy.
  • a method comprising die casting an electronic device component from an aluminum alloy, wherein the alloy comprises 4.0 to 10.0 weight % silicon (Si), 0.1 to 4.0 weight % magnesium (Mg), 0.1 to 1.0 weight % chromium (Cr), 0.05 to 1.0 weight % zinc (Zn), 0.05 to 1.0 weight % manganese (Mn), 0.01 to 1.0 weight % titanium (Ti), 0.001 to 0.5 weight % tin (Sn), 0.01 to 1 weight % zirconium (Zr), and balance aluminum and impurities, wherein at least one impurity included in the aluminum alloy is identified during a melting process through an ingredient analysis of each element included in of the aluminum alloy, wherein the at least one impurity is at least one of copper (Cu), nickel (Ni), or iron (Fe), wherein the copper (Cu) or nickel (Ni) is adjusted to be equal to or less than 0.05 weight% of the aluminum alloy, and wherein the iron (Fe) is adjusted to be equal to or less than
  • a method for manufacturing an aluminum alloy comprising: melting aluminum (Al) by heating the aluminum (Al) up to a temperature of 700°C to 800°C; heating the melted aluminum to a temperature between 850°C and 900°C and adding silicon (Si) to the melted aluminum (Al) to produce a first intermediate alloy; heating up the first intermediate alloy to a temperature of 1200°C or less, and adding chromium (Cr), manganese (Mn), and titanium (Ti) to the first intermediate alloy to produce a second intermediate alloy; cooling the second intermediate alloy to a temperature between 700°C and 800°C and adding zinc (Zn), and tin (Sn) to the second intermediate alloy to produce the aluminum alloy, wherein the aluminum alloy comprises 4.0 to 10.0 weight % silicon (Si), 0.1 to 4.0 weight % magnesium (Mg), 0.1 to 1.0 weight % chromium (Cr), 0.05 to 1.0 weight % zinc (Zn), 0.05 to 1.0 weight % manganese (Mn)
  • Aluminum alloys prepared by manufacturing methods may be applied to case frames, bezels, and the like of electronic devices.
  • An electronic device may be a device including a communication function.
  • the electronic device may include at least one of a smart phone, a tablet Personal Computer (PC), a mobile phone, a video phone, an e-book reader, a desktop PC, a laptop PC, a netbook computer, a PDA, a Portable Multimedia Player (PMP), an MP3 player, a mobile medical device, a camera, a wearable device (for example, a Head-Mounted-Device (HMD) such as electronic glasses, electronic clothes, an electronic bracelet, an electronic necklace, an electronic appcessory, an electronic tattoo, and a smart watch.
  • HMD Head-Mounted-Device
  • the electronic device may be a smart home appliance with a communication function.
  • the smart home appliances may include at least one of, for example, televisions, digital video disk (DVD) players, audio players, refrigerators, air conditioners, cleaners, ovens, microwaves, washing machines, air purifiers, set-top boxes, TV boxes (e.g., HomeSyncTM of Samsung, Apple TVTM, or Google TVTM), game consoles, electronic dictionaries, electronic keys, camcorders, or electronic frames.
  • DVD digital video disk
  • the electronic device may include at least one of various medical devices such as a magnetic resonance angiography (MRA) scanner, a magnetic resonance imaging (MRI) scanner, a computed tomography (CT) scanner, a scanner, an ultrasonograph, or the like, a navigation device, a Global Positioning System (GPS) receiver, an Event Data Recoder (EDR), a Flight Data Recoder (FDR), a vehicle infotainment device, an electronic equipment for ship (for example a ship navigation device and gyro-compass and the like, avionics, a security device, a head unit for vehicle, an industrial or household robot, ATM(automatic teller machine) in banking facilities or POS(point of sales) in stores.
  • MRA magnetic resonance angiography
  • MRI magnetic resonance imaging
  • CT computed tomography
  • ultrasonograph ultrasonograph
  • a navigation device a Global Positioning System (GPS) receiver
  • EDR Event Data Recoder
  • FDR Flight Data Recoder
  • the electronic device may be integrated into furniture or be part of a building. Additionally or alternatively, the electronic device may include an electronic board, an electronic signature receiving device, a projector, and various types of measuring devices (for example, a water meter, an electric meter, a gas meter, a radio wave meter and the like) including a camera function.
  • an electronic device according to various embodiments of the present disclosure may be a combination of one or more of above described various devices.
  • an electronic device according to various embodiments of the present disclosure may be a flexible device.
  • an electronic device according to various embodiments of the present disclosure is not limited to the above described devices.
  • an aluminum alloy may include at least some of Silicon (Si), Magnesium (Mg), chromium (Cr), Zinc (Zn), Manganese (Mn), titanium (Ti), and tin (Sn), Zirconium (Zn), Nickel (Ni), Magnesium (Mg), and iron (Fe).
  • Silicon (Si) content 4.0 wt % to 10.0 wt %
  • the silicon (Si) content of the alloy may be between 4.0 weight percent (wt %) and 10.0 wt %.
  • the silicon (Si) may function to enhance strength without degradation in corrosion resistance and may ensure a minimum fluidity, which is needed for the alloy to be usable for die casting.
  • the silicon (Si) is for increasing fluidity of molten material, decreasing shrinkage thereof, and enhancing heat resistance.
  • the silicon is combined with magnesium (Mg) and separated as Mg 2 Si through aging to affect mechanical properties, and the residual silicon (Si) left after the combination with the magnesium (Mg) is separated alone to enhance mechanical properties and effective in the fluidity improvement of molten metal.
  • Magnesium (Mg) content 0.1 wt % to 4.0 wt %
  • the magnesium (Mg) content of the alloy may be between 0.1 wt % and 4.0 wt %.
  • the magnesium (Mg) may contribute to the enhancement of corrosion resistance, strength, ductility, weight, and machinability.
  • an amount of added magnesium is less than 0.1 wt %, the additive effect thereof is insufficient.
  • an amount of added magnesium exceeds 4.0 wt %, the magnesium may foam with the start of ignition.
  • another gas may be used, and it may be solved by content control.
  • the magnesium (Mg) is separated as a compound along with the above described silicon (Si) to enhance mechanical properties.
  • the Mg content does not reach 0.1 wt %, necessary strength cannot be obtained due to a small amount of Mg 2 Si that is separated, and in contrast, when the Mg content exceeds 4.0 wt %, the presence of the magnesium may cause the degradation of various alloy characteristics.
  • the presence of the magnesium may lower the alloy's strength, and reduce its forming efficiency, thereby decreasing productivity, as in the case of the excessive silicon (Si).
  • the residual Mg which does not form Mg 2 Si, may prevent the solid solution of Mg 2 Si to degrade strength.
  • the magnesium (Mg) may cause an oxidized layer (MgO) to form fast on the surface of a product that is made from the alloy, and the oxidized layer (MgO) may function as a coating film on the surface to enhance corrosion resistance.
  • Chromium (Cr) content 0.1 wt % to 1.0 wt %
  • the chromium content of the alloy may be between 0.1 wt % and 1.0 wt %.
  • the chromium (Cr) is for enhancing wear resistance through crystal grain refinement and may contribute to a certain amount of heat-resistance enhancement.
  • the chromium (Cr) may restrain the creation and growth of a re-crystallized layer and may be distributed on grain boundaries while forming a compound along with aluminum (Al) to restrain precipitation during an aging process, thereby enhancing elongation.
  • the chromium (Cr) may contribute to corrosion resistance enhancement by increasing the density of the oxidized layer (MgO) of the magnesium.
  • Zinc (Zn) content 0.05 wt % to 1.0 wt %
  • the zinc (Zn) content of the alloy may be between 0.05 wt % and 1.0 wt %.
  • the zinc (Zn) is for enhancing corrosion resistance and strength. In cases where an amount of added zinc exceeds 1.0 wt %, physical properties, such as weldability, corrosion resistance, and the like, may be deteriorated.
  • the zinc (Zn) may also contribute to strength enhancement through age-hardening.
  • Manganese (Mn) content 0.05 wt % to 1.0 wt %
  • the manganese (Mn) content of the alloy may be between 0.05 wt % and 1.0 wt %. According to an embodiment, the presence of manganese (Mn) may result in increased corrosion resistance, increased softening resistance, and improved surface-treatment characteristics at a predetermined high temperature.
  • a small amount of added manganese (Mn) may contribute to strength improvement through a solid-solution hardening effect and a fine-precipitate dispersion effect with a slight reduction in corrosion resistance.
  • Titanium (Ti) content 0.01 wt % to 1.0 wt %
  • the titanium (Ti) content of the alloy may be between 0.01 wt % and 1.0 wt %.
  • the titanium (Ti) is an effective element in grain refinement, and when an amount of added titanium exceeds 1.0 wt %, the titanium may produce a large amount of large and coarse intermetallic compounds, such as TiAl 3 , thereby degrading mechanical characteristics of an alloy. According to an embodiment, the titanium may contribute to forming-efficiency and strength enhancement through grain refinement.
  • Tin (Sn) content 0.001 wt % to 0.5 wt %
  • the tin (Sn) content of the alloy may be between 0.001 wt % and 0.5 wt %.
  • the addition of tin (Sn) to the alloy may enhance its forming efficiency and machinability.
  • the amount of tin added exceeds 0.5 wt %, the alloy's hot workability and cold workability may be impacted negatively.
  • the zirconium (Zr) content of the alloy may be between 0.01 wt % and 1.0 wt %. According to an embodiment, the zirconium (Zr) may reinforce the strength of the aluminum alloy while also improving elongation.
  • Nickel (Ni) content 0.05 wt % or less
  • the nickel (Ni) may be present in the alloy as an impurity.
  • the nickel (Ni) may introduced into the alloy with the aluminum that is used to manufacture the alloy.
  • the nickel (Ni) content of the alloy may be no more than 0.05 wt %
  • Ni nickel
  • the corrosion resistance of the alloy may decrease.
  • the iron (Fe) may be present in the alloy as an impurity.
  • the iron (Fe) may introduced into the alloy with the aluminum that is used to manufacture the alloy.
  • the iron (Fe) content of the alloy may be no more than 0.3 wt %.
  • the iron (Fe) is an element that can contribute to strength enhancement by increasing the density of an alloy and enhance form removal capability by decreasing viscosity.
  • the iron is effective in preventing re-crystallized grains from being coarsened and refining grains during casting, the presence of iron may reduce the alloy's extruding efficiency and ductility. More particularly, when 0.3 wt % or more iron is contained in the alloy, the iron may cause the alloy to corrode.
  • the copper (Cu) may be present in the alloy as an impurity.
  • the copper (Cu) may introduced into the alloy with the aluminum that is used to manufacture the alloy.
  • the copper (Cu) content of the alloy may be no more than 0.05 wt %.
  • the presence of copper (Cu) in the alloy may enhance the alloy's strength, ductility (through precipitation hardening), corrosion resistance, as well as its fluidity when the alloy is in a molten state.
  • the presence of copper may also decrease corrosion resistance, weldability, and extruding efficiency. Accordingly, when 0.05 wt % or more copper is contained in the alloy, the copper may cause the alloy to corrode faster.
  • the aluminum (Al) content of the alloy may be 90 wt %.
  • the copper (Cu) and the nickel (Ni) may be controlled to be 0.05 wt % or less on the basis of the entire weight and the iron (Fe) may be controlled to be 0.3 wt % or less on the basis of the entire weight, thereby making it possible to manufacture an aluminum ally for die casting with stable corrosion resistance, high strength, and excellent fluidity.
  • FIG. 1 is a flowchart of a process for manufacturing the aluminum alloy according to various embodiments of the present disclosure.
  • 90 wt % or more of aluminum (Al) may be completely melted by heating it up to a temperature of 700°C to 800°C.
  • a predetermined amount of silicon (Si) may be added to the completely molten aluminum (Al).
  • the silicon (Si) may be added after the completely molten aluminum (Al) reaches a temperature of 850°C to 950°C.
  • the silicon (Si) may be added in the range of 4.0 wt % to 10.0 wt %.
  • the temperature may be raised to 1200°C after the aluminum (Al) and the silicon (Si) are added.
  • titanium (Ti), chromium (Cr), and manganese (Mn) may be added to the heated molten material and then completely melted by heating at a corresponding temperature for a predetermined period of time.
  • the heating may be conducted in the range of 4 to 5 hours.
  • the titanium (Ti) may be added in the range of 0.01 wt % to 1.0 wt %
  • the chromium (Cr) may be added in the range of 0.1 wt % to 1.0 wt %
  • the manganese (Mn) may be added in the range of 0.05 wt % to 1.0 wt %.
  • zirconium (Zr) may also be added in addition to the titanium, manganese, and chromium in the range of 0.01 wt % to 1.0 wt %.
  • the zirconium (Zr) may reinforce the strength of the aluminum alloy while also improving elongation.
  • the amount of impurities present in the alloy is adjusted based on an outcome of the analysis.
  • the high-temperature melt may be cooled to a temperature of 700°C to 800°C through natural cooling, and then zinc (Zn) and magnesium (Mg) may be added and completely melted.
  • an aluminum alloy pre-form may be formed.
  • a casting pressure of 75 MPa may be applied to the pre-form during die casting.
  • the pre-form may be formed to exhibit a tensile strength characteristic in the range of 250 MPa to 350 MPa during die casting.
  • the pre-form may be formed to exhibit a yield strength characteristic in the range of 150 MPa to 250 MPa during die casting.
  • the pre-form may be formed to exhibit a break elongation of 2.0% to 4.5%.
  • the ingredient analysis process may be conducted every a new element is added.
  • Table 1 and table 2 below show composition tables of properly prepared aluminum alloys according to various embodiments of the present disclosure.
  • Classification Chemical composition (%) Total Al Cu Si Mg Zn Fe Mn Ti Ni Sn Cr Representative composition 100 90.12 0.0 7.0 2.0 0.1 0.0 0.1 0.1 0.05 0.03 0.5 Range 100 Bal. 0.0-0.3 4-10.0 0.1-4.0 0.01-1.0 0.0-0.5 0.01-1.0 0.01-1.0 0.001-1.0 0.001-0.5 0.01-1.0
  • Example Chemical composition (%) Total Al Cu Si Mg Zn Fe Mn Ti Ni Sn Cr Zr 1 100 Bal. 0.0 7.0 2.0 0.1 0.0 0.1 0.1 0.05 0.03 0.5 0.0 2 100 Bal.
  • the copper (Cu), the iron (Fe), and the nickel (Ni), which are unavoidable impurities capable of affecting corrosion resistance, may not be intentionally added to the alloy.
  • the copper (Cu), the iron (Fe), and the nickel (Ni), which may be contained in aluminum may be identified through an ingredient analysis during the melting process of each element, and the copper (Cu) and the nickel (Ni) may be controlled to be 0.05 wt % or less on the basis of the entire weight.
  • the iron (Fe) may be controlled to be 0.3 wt % or less on the basis of the entire weight.
  • FIG. 2 illustrates a graph and a table showing physical property test results of diverse specimens according to various embodiments of the present disclosure.
  • aluminum alloys having desired physical properties may be manufactured by controlling wt % of compositions thereof.
  • an alloy having increased strength may be obtained by increasing the contents of silicon (Si) and magnesium (Mg).
  • Si silicon
  • Mg magnesium
  • the proper composition of elements has to be made in order to obtain an alloy having desired physical properties (e.g., tensile strength, yield strength, elongation, etc.).
  • FIG. 3 illustrates a comparative example of the corrosion of an aluminum alloy, according to various embodiments of the present disclosure, and a general aluminum alloy.
  • the aluminum alloy (the left specimen in the drawing) manufactured according to the various embodiments of the present disclosure has more excellent corrosion resistance than an aluminum alloy known in the art (the right specimen in the drawing).
  • an aluminum alloy for die casting can have stable corrosion resistance in a saline-water environment, in water, and in air due to a stable and dense surface oxidation layer formed thereon compared to commercial alloys and general alloys.
  • an aluminum alloy can provide high-quality external and internal die-cast components having complex shapes and structures due to high strength and excellent fluidity thereof.

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  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
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  • Metallurgy (AREA)
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Claims (10)

  1. Aluminiumlegierung, umfassend:
    4,0 bis 10,0 Gewichts-% Silizium (Si),
    0,1 bis 4,0 Gewichts-% Magnesium (Mg),
    0,1 bis 1,0 Gewichts-% Chrom (Cr),
    0,05 bis 1,0 Gewichts-% Zink (Zn),
    0,05 bis 1,0 Gewichts-% Mangan (Mn),
    0,01 bis 1,0 Gewichts-% Titan (Ti),
    0,001 bis 0,5 Gewichts-% Zinn (Sn),
    0,01 bis 1 Gewichts-% Zirkonium (Zr), und
    der Rest ist Aluminium sowie Verunreinigungen,
    wobei wenigstens eine in der Aluminiumlegierung enthaltene Verunreinigung während eines Schmelzvorgangs mittels einer Inhaltsstoffanalyse jedes in der Aluminiumlegierung enthaltenen Elements identifiziert wird,
    wobei es sich bei der wenigstens einen Verunreinigung um wenigstens eines der Folgenden handelt: Kupfer (Cu), Nickel (Ni) und Eisen (Fe),
    wobei das Kupfer (Cu) oder Nickel (Ni) derart angepasst wird, dass es kleiner als oder gleich 0,05 Gewichts-% der Aluminiumlegierung ist, und
    wobei das Eisen (Fe) derart angepasst wird, dass es kleiner als oder gleich 0,3 Gewichts-% der Aluminiumlegierung ist.
  2. Verfahren umfassend das Druckgießen einer Komponente eines elektronischen Geräts aus einer Aluminiumlegierung, wobei die Legierung Folgendes umfasst: 4,0 bis 10,0 Gewichts-% Silizium (Si), 0,1 bis 4,0 Gewichts-% Magnesium (Mg), 0,1 bis 1,0 Gewichts-% Chrom (Cr), 0,05 bis 1,0 Gewichts-% Zink (Zn), 0,05 bis 1,0 Gewichts-% Mangan (Mn), 0,01 bis 1,0 Gewichts-% Titan (Ti), 0,001 bis 0,5 Gewichts-% Zinn (Sn), 0,01 bis 1 Gewichts-% Zirkonium (Zr), und der Rest ist Aluminium sowie Verunreinigungen,
    wobei wenigstens eine in der Aluminiumlegierung enthaltene Verunreinigung während eines Schmelzvorgangs mittels einer Inhaltsstoffanalyse jedes in der Aluminiumlegierung enthaltenen Elements identifiziert wird,
    wobei es sich bei der wenigstens einen Verunreinigung um wenigstens eines der Folgenden handelt: Kupfer (Cu), Nickel (Ni) und Eisen (Fe),
    wobei das Kupfer (Cu) oder Nickel (Ni) derart angepasst wird, dass es kleiner als oder gleich 0,05 Gewichts-% der Aluminiumlegierung ist, und
    wobei das Eisen (Fe) derart angepasst wird, dass es kleiner als oder gleich 0,3 Gewichts-% der Aluminiumlegierung ist.
  3. Verfahren nach Anspruch 2, wobei die Aluminiumlegierung beim Druckgießen einer Gießtemperatur von 680 bis 750 °C unterzogen wird.
  4. Verfahren nach Anspruch 2 oder 3, wobei die Aluminiumlegierung beim Druckgießen einem Gießdruck von 75 MPa unterzogen wird.
  5. Verfahren nach Anspruch 2, 3 oder 4, wobei die Aluminiumlegierung eine Zugfestigkeit von 250 bis 350 MPa aufweist.
  6. Verfahren nach einem der Ansprüche 2 bis 5, wobei die Aluminiumlegierung eine Streckgrenze von 150 bis 250 MPa aufweist.
  7. Verfahren nach einem der Ansprüche 2 bis 6, wobei die Aluminiumlegierung eine Bruchdehnung von 2,0 bis 4,5 % aufweist.
  8. Verfahren nach einem der Ansprüche 2 bis 7, wobei die Komponente des elektronischen Geräts ein äußeres Gehäuse, ein inneres Gehäuse und/oder einen Rahmen des elektronischen Geräts umfasst.
  9. Verfahren zur Herstellung einer Aluminiumlegierung, wobei das Verfahren Folgendes umfasst:
    Schmelzen von Aluminium (Al) durch Erhitzen des Aluminiums auf eine Temperatur von 700 °C bis 800 °C;
    Erhitzen des geschmolzenen Aluminiums (Al) auf eine Temperatur zwischen 850 °C und 900 °C und Zugeben von Silizium (Si) zu dem geschmolzenen Aluminium (Al), um eine erste Zwischenlegierung zu erzeugen;
    Erhitzen der ersten Zwischenlegierung auf eine Temperatur von 1200 °C oder weniger und Zugeben von Chrom (Cr), Mangan (Mn) und Titan (Ti) zu der ersten Zwischenlegierung, um eine zweite Zwischenlegierung zu erzeugen;
    Herunterkühlen der zweiten Zwischenlegierung auf eine Temperatur zwischen 700 °C und 800 °C und Zugeben von Zink (Zn) und Zinn (Sn) zu der zweiten Zwischenlegierung, um die Aluminiumlegierung zu erzeugen,
    wobei die Aluminiumlegierung 4,0 bis 10,0 Gewichts-% Silizium (Si), 0,1 bis 4,0 Gewichts-% Magnesium (Mg), 0,1 bis 1,0 Gewichts-% Chrom (Cr), 0,05 bis 1,0 Gewichts-% Zink (Zn), 0,05 bis 1,0 Gewichts-% Mangan (Mn), 0,01 bis 1,0 Gewichts-% Titan (Ti), 0,001 bis 0,5 Gewichts-% Zinn (Sn), 0,01 bis 1 Gewichts-% Zirkonium (Zr) umfasst und der Rest Aluminium sowie Verunreinigungen ist,
    wobei wenigstens eine in der Aluminiumlegierung enthaltene Verunreinigung während eines Schmelzvorgangs mittels einer Inhaltsstoffanalyse jedes in der Aluminiumlegierung enthaltenen Elements identifiziert wird,
    wobei es sich bei der wenigstens einen Verunreinigung um wenigstens eines der Folgenden handelt: Kupfer (Cu), Nickel (Ni) und Eisen (Fe),
    wobei das Kupfer (Cu) oder Nickel (Ni) derart angepasst wird, dass es kleiner als oder gleich 0,05 Gewichts-% der Aluminiumlegierung ist, und
    wobei das Eisen (Fe) derart angepasst wird, dass es kleiner als oder gleich 0,3 Gewichts-% der Aluminiumlegierung ist.
  10. Verfahren nach Anspruch 9, das weiterhin das Anpassen der Menge der wenigstens einen in der Legierung vorhandenen Verunreinigung umfasst,
    wobei die wenigstens eine Verunreinigung wenigstens eines der Folgenden umfasst: Kupfer (Cu), Nickel (Ni) und Eisen (Fe),
    wobei das Kupfer (Cu) höchstens 0,05 Gewichts-% der Legierung ausmacht und das Nickel (Ni) höchstens 0,05 Gewichts-% der Legierung ausmacht, und
    wobei das Eisen (Fe) höchstens 0,3 Gewichts-% der Legierung ausmacht.
EP15183486.8A 2014-09-02 2015-09-02 Aluminiumlegierung für druckguss und herstellungsverfahren dafür Active EP2992983B1 (de)

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KR102597784B1 (ko) 2018-08-24 2023-11-03 삼성전자주식회사 다이캐스팅용 알루미늄 합금 및 그 제조방법, 다이캐스팅 방법
KR101984707B1 (ko) * 2018-09-21 2019-05-31 주식회사 에스제이테크 내식성과 열전도도가 우수한 고강도 다이캐스팅용 알루미늄 합금과 이를 이용한 알루미늄 합금 주조품의 제조방법
KR102191138B1 (ko) * 2019-01-03 2020-12-15 유순경 도어록 다이캐스팅용 알루미늄 합금 및 그 제조방법
KR101992201B1 (ko) * 2019-02-21 2019-06-24 엘지전자 주식회사 다이캐스팅용 알루미늄 합금 및 다이캐스팅 주물
KR102217940B1 (ko) * 2019-03-29 2021-02-19 고등기술연구원연구조합 고방열특성을 갖는 다이캐스팅용 알루미늄 합금 및 이의 제조방법
KR20210076329A (ko) * 2019-12-16 2021-06-24 현대자동차주식회사 다이캐스팅용 알루미늄 합금 및 이를 이용한 알루미늄 합금 주조물 제조방법
CN112126807B (zh) * 2020-10-12 2022-01-11 安徽鑫发铝业有限公司 一种高强抗腐耐磨冲锋舟用铝型材的制备方法
KR20220084683A (ko) * 2020-12-14 2022-06-21 삼성전자주식회사 알루미늄 합금 소재 및 그를 포함하는 전자 장치
DE102021102268A1 (de) 2021-02-01 2022-08-04 Trimet Aluminium Se Aluminiumlegierung, Bauteil aus einer Aluminiumlegierung und Verfahren zum Herstellen eines Bauteils aus einer Aluminiumlegierung
KR102617997B1 (ko) 2021-11-29 2023-12-27 한국생산기술연구원 다이캐스팅 알루미늄 합금의 제조방법
KR102902931B1 (ko) 2022-11-30 2025-12-23 한국생산기술연구원 다이캐스팅 알루미늄 합금의 제조방법
CN121087327A (zh) 2024-06-06 2025-12-09 通用汽车环球科技运作有限责任公司 耐腐蚀铝合金

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ES2768682T3 (es) 2020-06-23
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