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WO2025200455A1 - Matériau d'alliage aluminium-fer-nickel-silicium-magnésium-titane de coulée et son procédé de préparation - Google Patents

Matériau d'alliage aluminium-fer-nickel-silicium-magnésium-titane de coulée et son procédé de préparation

Info

Publication number
WO2025200455A1
WO2025200455A1 PCT/CN2024/129566 CN2024129566W WO2025200455A1 WO 2025200455 A1 WO2025200455 A1 WO 2025200455A1 CN 2024129566 W CN2024129566 W CN 2024129566W WO 2025200455 A1 WO2025200455 A1 WO 2025200455A1
Authority
WO
WIPO (PCT)
Prior art keywords
aluminum
casting
nickel
iron
magnesium
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.)
Pending
Application number
PCT/CN2024/129566
Other languages
English (en)
Chinese (zh)
Inventor
张煜琰
赵海东
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.)
Shenzhen Xingfuli Industrial Development Co Ltd
Original Assignee
Shenzhen Xingfuli Industrial Development Co Ltd
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 Shenzhen Xingfuli Industrial Development Co Ltd filed Critical Shenzhen Xingfuli Industrial Development Co Ltd
Publication of WO2025200455A1 publication Critical patent/WO2025200455A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/006—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals with use of an inert protective material including the use of an inert gas
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/10—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals with refining or fluxing agents; Use of materials therefor, e.g. slagging or scorifying agents
    • 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
    • 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
    • C22C1/03—Making non-ferrous alloys by melting using master alloys
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Definitions

  • the present invention relates to the field of preparation of aluminum alloy materials, and specifically to an aluminum-iron-nickel-silicon-magnesium-titanium alloy material for casting with high conductivity, high temperature (>180°C) and high strength, and a preparation method thereof.
  • Aluminum alloys offer advantages such as low density, high specific strength, corrosion resistance, and excellent processability, making them widely used in a variety of fields, including automotive, machinery, and aerospace. Cast aluminum alloys are the most widely used. However, in certain medium- and high-temperature environments, such as automotive engines and induction motors, the strength of cast aluminum alloys decreases as operating temperatures rise, making them susceptible to deformation and fracture due to insufficient strength.
  • the high-temperature mechanical properties of aluminum alloys primarily depend on the stability of their microstructure at high temperatures.
  • the primary strategy for improving the high-temperature mechanical properties of cast aluminum alloys is to introduce various alloying elements, such as copper, iron, nickel, and silicon, into the alloy. By manipulating the microstructure, these elements form thermally stable strengthening phases within the matrix, enhancing the pinning effect of relative dislocations and ultimately improving the alloy's high-temperature mechanical properties.
  • Pure aluminum has the best electrical conductivity among aluminum alloys.
  • Aluminum's electrical conductivity is proportional to the electron's free path. Impurity scattering is a key factor influencing this path: the stronger the impurity scattering, the shorter the electron's free path.
  • various alloying elements such as copper, iron, nickel, and silicon are introduced into cast aluminum alloys. This increases impurity scattering and reduces the alloy's electrical conductivity.
  • A356 alloy the most widely used cast aluminum alloy, has an as-cast yield strength of 130 MPa, but its electrical conductivity is less than 40% IACS.
  • Patent 201980053078.0 invents a high-yield strength ( ⁇ 90MPa) and high-conductivity ( ⁇ 48% IACS) aluminum alloy containing 4% to 6% nickel, with an iron content of 0.2% to 0.8%.
  • nickel is expensive.
  • the present invention provides an aluminum-iron-nickel-silicon-magnesium-titanium alloy material for casting, comprising the following elemental components: Fe 1.4-1.7wt%, Ni 0.5-1.0wt%, Si 0.10-0.15%, Mg 0.08-0.15%, Ti 0.015-0.020%, Cu ⁇ 0.05wt%, and the remainder is aluminum and other inevitable trace impurity elements, the content of a single element in the trace impurity elements ⁇ 0.03wt%, and the total amount of trace impurity elements ⁇ 0.10wt%.
  • the present invention introduces appropriate Fe and Ni elements to form stable Al 3 Fe phase and Al 9 (Fe, Ni) 2 phase in the alloy, thereby improving the high-temperature mechanical properties of the alloy. Due to the presence of Ni, the Al 9 (Fe, Ni) 2 phase contributes to the electrical conductivity of the alloy; the Mg element is dissolved in the matrix during the pressure casting process, thereby improving the yield strength of the matrix; the Ti element forms Al 3 Ti or (AlSi) 3 Ti phase with Al and Si elements in the alloy, which can promote nucleation, refine grains, and improve the yield strength of the alloy.
  • the aluminum-iron-nickel-silicon-magnesium-titanium alloy material for casting of the present invention has the following outstanding advantages:
  • the aluminum-iron-nickel-silicon-magnesium-titanium alloy material for casting of the present invention has high room temperature and high temperature mechanical properties and electrical conductivity through the control of element content and structure.
  • the aluminum-iron-nickel-silicon-magnesium-titanium alloy material for casting of the present invention has a cast tensile strength of 150-180 MPa, a yield strength of 80-90 MPa, and an elongation of 6-14% at room temperature; at 180°C, the cast tensile strength can reach 120-170 MPa, a yield strength of 75-85 MPa, and an elongation of 6-14%. 7 ⁇ 18%; the room temperature conductivity can reach 47 ⁇ 53% IACS.
  • the main alloying element in the aluminum-iron-nickel-silicon-magnesium-titanium alloy material for casting of the present invention is iron, and it can be prepared using recycled aluminum alloy; the nickel content in the alloy material is 0.5-1.0wt%, which is much lower than other existing highly conductive and heat-resistant casting aluminum alloys; the room temperature and high temperature mechanical properties and electrical conductivity of the alloy of the present invention are comparable to those of existing highly conductive and heat-resistant casting aluminum alloys; the aluminum-iron-nickel-silicon-magnesium-titanium alloy material for casting of the present invention has lower cost while ensuring mechanical properties and electrical conductivity.
  • the solidification range of the aluminum-iron-nickel-silicon-magnesium-titanium alloy material for casting of the present invention is 15-25°C, it has good fluidity and low thermal cracking tendency, and has a low content of alloy elements and a higher content of ⁇ -Al phase, so the alloy has higher electrical conductivity and elongation.
  • the aluminum-iron-nickel-silicon-magnesium-titanium alloy material for casting of the present invention is prepared by recycling aluminum alloy, introducing trace amounts of elements such as magnesium and copper, and utilizing the high solidification rate of the pressure casting process to achieve solid solution of elements such as magnesium and copper in the ⁇ -Al matrix, thereby improving the yield strength of the alloy material.
  • the high-temperature mechanical properties and electrical conductivity of the aluminum-iron-nickel-silicon-magnesium-titanium alloy material for casting of the present invention in the cast state can meet the mechanical and electrical conductivity requirements of components such as induction motor rotors.
  • FIG1 is a SEM image of an alloy of a specific embodiment.
  • the mold is pre-sprayed with a release agent and then preheated to 200°C.
  • the temperature of the molten aluminum is controlled between 720°C and 740°C before pressure casting.
  • the alloy composition is: Fe1.4%, Ni0.5%, Si0.13%, Mg0.1%, Ti0.015%, Cu0.038%, other elements ⁇ 0.100%, and the rest is aluminum.
  • the alloy composition is: Fe1.68%, Ni0.9%, Si0.129%, Mg0.136%, Ti0.02%, Cu0.044%, other elements ⁇ 0.100%, and the rest is aluminum.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Conductive Materials (AREA)

Abstract

L'invention concerne un matériau d'alliage aluminium-fer-nickel-silicium-magnésium-titane de coulée et son procédé de préparation. Le matériau d'alliage aluminium-fer-nickel-silicium-magnésium-titane de coulée est préparé au moyen d'un procédé de coulée sous pression ou de coulée par extrusion, et présente les composants suivants : de 1,4 à 1,7 % en poids de Fe, de 0,5 à 1,0 % en poids de Ni, de 0,10 à 0,15 % de Si, de 0,08 à 0,15 % de Mg, de 0,015 à 0,020 % de Ti, 0,05 % en poids ou moins de Cu et le reste étant de l'aluminium et d'autres éléments d'impureté à l'état de trace inévitables, la teneur de chaque élément d'impureté à l'état de trace individuel étant inférieure ou égale à 0,03 % en poids, et la quantité totale de tous les éléments d'impureté à l'état de trace étant inférieure ou égale à 0,10 % en poids. Le matériau d'alliage aluminium-fer-nickel-silicium-magnésium-titane préparé présente de bonnes propriétés mécaniques à température ambiante et des températures élevées dans l'état brut de coulée et une excellente conductivité électrique, et présente de larges perspectives d'application dans le domaine des composants de transport électrique tels que des rotors de moteur à induction.
PCT/CN2024/129566 2024-03-29 2024-11-04 Matériau d'alliage aluminium-fer-nickel-silicium-magnésium-titane de coulée et son procédé de préparation Pending WO2025200455A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202410378804.9 2024-03-29
CN202410378804.9A CN118256779A (zh) 2024-03-29 2024-03-29 一种铸造用铝铁镍硅镁钛合金材料及其制备方法

Publications (1)

Publication Number Publication Date
WO2025200455A1 true WO2025200455A1 (fr) 2025-10-02

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Family Applications (1)

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PCT/CN2024/129566 Pending WO2025200455A1 (fr) 2024-03-29 2024-11-04 Matériau d'alliage aluminium-fer-nickel-silicium-magnésium-titane de coulée et son procédé de préparation

Country Status (2)

Country Link
CN (1) CN118256779A (fr)
WO (1) WO2025200455A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118256779A (zh) * 2024-03-29 2024-06-28 深圳星富丽实业发展有限责任公司 一种铸造用铝铁镍硅镁钛合金材料及其制备方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005045080A1 (fr) * 2003-11-10 2005-05-19 Arc Leichtmetallkompe- Tenzzentrum Ranshofen Gmbh Alliage d'alminium
US20100307645A1 (en) * 2008-02-06 2010-12-09 Nippon Light Metal Co., Ltd. Aluminum alloy sheet for motor vehicle and process for producing the same
CN110983114A (zh) * 2019-11-28 2020-04-10 江苏鼎胜新能源材料股份有限公司 一种散热塔用波纹翅片铝箔基材及其制备方法
CN114015912A (zh) * 2021-10-18 2022-02-08 柳州市智甲金属科技有限公司 一种高导热高延伸率压铸铝合金及其制备方法
CN114606414A (zh) * 2022-03-11 2022-06-10 北京理工大学 一种高导电率再生铝合金导线及其制备方法
CN118256779A (zh) * 2024-03-29 2024-06-28 深圳星富丽实业发展有限责任公司 一种铸造用铝铁镍硅镁钛合金材料及其制备方法

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108118197B (zh) * 2017-12-22 2020-05-05 广州致远新材料科技有限公司 一种高导热压铸铝合金材料的制备方法
CN113481414A (zh) * 2021-06-21 2021-10-08 安徽标兵实业有限公司 一种软包锂电池极耳正极用1系铝合金箔材的制备方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005045080A1 (fr) * 2003-11-10 2005-05-19 Arc Leichtmetallkompe- Tenzzentrum Ranshofen Gmbh Alliage d'alminium
US20100307645A1 (en) * 2008-02-06 2010-12-09 Nippon Light Metal Co., Ltd. Aluminum alloy sheet for motor vehicle and process for producing the same
CN110983114A (zh) * 2019-11-28 2020-04-10 江苏鼎胜新能源材料股份有限公司 一种散热塔用波纹翅片铝箔基材及其制备方法
CN114015912A (zh) * 2021-10-18 2022-02-08 柳州市智甲金属科技有限公司 一种高导热高延伸率压铸铝合金及其制备方法
CN114606414A (zh) * 2022-03-11 2022-06-10 北京理工大学 一种高导电率再生铝合金导线及其制备方法
CN118256779A (zh) * 2024-03-29 2024-06-28 深圳星富丽实业发展有限责任公司 一种铸造用铝铁镍硅镁钛合金材料及其制备方法

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