US20210108290A1 - Thermally conductive aluminum alloy and application thereof - Google Patents

Thermally conductive aluminum alloy and application thereof Download PDF

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Publication number
US20210108290A1
US20210108290A1 US16/463,426 US201716463426A US2021108290A1 US 20210108290 A1 US20210108290 A1 US 20210108290A1 US 201716463426 A US201716463426 A US 201716463426A US 2021108290 A1 US2021108290 A1 US 2021108290A1
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aluminum alloy
heat
conductive aluminum
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Qiang Guo
Yunchun Li
Chunmeng ZHANG
Yongliang XIE
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BYD Co Ltd
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BYD Co Ltd
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Assigned to BYD COMPANY LIMITED reassignment BYD COMPANY LIMITED ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: GUO, QIANG, XIE, Yongliang, ZHANG, Chunmeng, LI, YUNCHUN
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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
    • C22C21/04—Modified aluminium-silicon alloys
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
    • F28F21/081—Heat exchange elements made from metals or metal alloys
    • F28F21/084—Heat exchange elements made from metals or metal alloys from aluminium or aluminium alloys
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C2202/00—Physical properties

Definitions

  • the present disclosure relates to the technical field of aluminum alloy, and in particular to a thermally conductive aluminum alloy and application thereof.
  • Aluminum alloy materials are widely used in aviation, aerospace, electronic and electrical products, automotive, machinery manufacturing and other fields because of their characteristics of low density, high strength, good plasticity, excellent electrical conductivity, thermal conductivity and corrosion resistance.
  • An object of the present disclosure is to provide a heat-conductive aluminum alloy.
  • the heat-conductive aluminum alloy has a high thermal conductivity and can be recycled.
  • the present disclosure provides a heat-conductive aluminum alloy, containing alloying elements, unavoidable impurities and the balance of an aluminum element, where based on the total weight of the heat-conductive aluminum alloy, the alloying elements include: 5.0 to 11.0% by weight of Si, 0.4 to 1.0% by weight of Fe, 0.2 to 1.0% by weight of Mg, less than 0.1% by weight of Zn, less than 0.1% by weight of Mn, less than 0.1% by weight of Sr and less than 0.1% by weight of Cu.
  • the heat-conductive aluminum alloy prepared by the present disclosure has a tensile strength of not less than 250 MPa, a yield strength of not less than 150 MPa, an elongation of not less than 3.5%, and a thermal conductivity of not less than 150 W/(m ⁇ K).
  • the heat-conductive aluminum alloy has high mechanical properties and good flow forming property, and the forming fluidity measured by a mosquito coil mold is not less than 1150 mm.
  • the heat-conductive aluminum alloy can be recycled and reused multiple times.
  • the thermal conductivity of the die-casting material after 5 times of recycling is >125 W/(m ⁇ K), which is 83% or above of the thermal conductivity of the new material.
  • the thermal conductivity of the die-casting material after 10 times of recycling is >112 W/(m ⁇ K), which is 75% or above of the thermal conductivity of the new material.
  • the alloying elements include: 8.0 to 11.0% by weight of Si, 0.4 to 0.6% by weight of Fe, 0.4 to 0.8% by weight of Mg, less than 0.01% by weight of Zn, less than 0.01% by weight of Mn, less than 0.1% by weight of Sr and less than 0.01% by weight of Cu.
  • the heat-conductive aluminum alloy prepared according to the formula has a tensile strength of not less than 270 MPa, a yield strength of not less than 160 MPa, an elongation of not less than 5%, and a thermal conductivity of not less than 160 W/(m ⁇ K).
  • the impurity elements in the heat-conductive aluminum alloy do not exceed 0.2% by weight.
  • the heat-conductive aluminum alloy consists of 5.0 to 11.0% by weight of Si, 0.4 to 1.0% by weight of Fe, 0.2 to 1.0% by weight of Mg, less than 0.1% by weight of Zn, less than 0.1% by weight of Mn, less than 0.1% by weight of Sr, less than 0.1% by weight of Cu, not more than 0.2% by weight of impurity elements and the balance of aluminum.
  • the heat-conductive aluminum alloy consists of 8.0 to 11.0% by weight of Si, 0.4 to 0.6% by weight of Fe, 0.4 to 0.8% by weight of Mg, less than 0.01% by weight of Zn, less than 0.01% by weight of Mn, less than 0.1% by weight of Sr, less than 0.01% by weight of Cu, not more than 0.2% by weight of impurity elements and the balance of aluminum.
  • the present disclosure further provides applications of the heat-conductive aluminum alloy as described above in the manufacture of metal structural members and/or heat sinks for electronic and electrical products.
  • the values of tensile strength, yield strength and elongation of a heat-conductive aluminum alloy refer to the tensile strength, yield strength and elongation of a metallic material tested in accordance with GB/T 228.1-2010 Metallic Materials-Tensile Testing-Part 1: Method of test at room temperature.
  • a first aspect of the present disclosure provides a heat-conductive aluminum alloy, containing alloying elements, unavoidable impurities and the balance of an aluminum element, where based on the total weight of the heat-conductive aluminum alloy, the alloying elements may include: 5.0 to 11.0% by weight of Si, 0.4 to 1.0% by weight of Fe, 0.2 to 1.0% by weight of Mg, less than 0.1% by weight of Zn, less than 0.1% by weight of Mn, less than 0.1% by weight of Sr and less than 0.1% by weight of Cu.
  • the heat-conductive aluminum alloy prepared by the present disclosure has a tensile strength of not less than 250 MPa, a yield strength of not less than 150 MPa, an elongation of not less than 3.5%, and a thermal conductivity of not less than 150 W/(m ⁇ K).
  • the heat-conductive aluminum alloy has high mechanical properties and good flow forming property, and the forming fluidity measured by a mosquito coil mold is not less than 1150 mm.
  • the heat-conductive aluminum alloy can be recycled and reused multiple times.
  • the thermal conductivity of the die-casting material after 5 times of recycling is not less than 125 W/(m ⁇ K), which is 83% or above of the thermal conductivity of the new material.
  • the thermal conductivity of the die-casting material after 10 times of recycling is not less than 112 W/(m ⁇ K), which is 75% or above of the thermal conductivity of the new material.
  • the alloying elements may include: 8.0 to 11.0% by weight of Si, 0.4 to 0.6% by weight of Fe, 0.4 to 0.8% by weight of Mg, less than 0.01% by weight of Zn, less than 0.01% by weight of Mn, less than 0.1% by weight of Sr and less than 0.01% by weight of Cu.
  • the heat-conductive aluminum alloy prepared according to the formula has a tensile strength of not less than 270 MPa, a yield strength of not less than 160 MPa, an elongation of not less than 5%, and a thermal conductivity of not less than 160 W/(m ⁇ K).
  • the thermal conductivity of the die-casting material after 5 times of recycling is not less than 138 W/(m ⁇ K), which is 86% or above of the thermal conductivity of the new material.
  • the thermal conductivity of the die-casting material after 10 times of recycling is not less than 125 W/(m ⁇ K), which is 78% or above of the thermal conductivity of the new material.
  • the purity of the aluminum alloy is one of the important factors affecting the properties of the aluminum alloy.
  • the impurity elements in the heat-conductive aluminum alloy do not exceed 0.2 wt %.
  • the heat-conductive aluminum alloy consists of 5.0 to 11.0% by weight of Si, 0.4 to 1.0% by weight of Fe, 0.2 to 1.0% by weight of Mg, less than 0.1% by weight of Zn, less than 0.1% by weight of Mn, less than 0.1% by weight of Sr, less than 0.1% by weight of Cu, not more than 0.2% by weight of impurity elements and the balance of aluminum.
  • the heat-conductive aluminum alloy prepared according to the formula has a tensile strength of not less than 250 MPa, a yield strength of not less than 150 MPa, an elongation of not less than 3.5%, and a thermal conductivity of not less than 150 W/(m ⁇ K).
  • the heat-conductive aluminum alloy has good flow forming property, and the forming fluidity measured by a mosquito coil mold is not less than 1150 mm.
  • the heat-conductive aluminum alloy in order to further improve the mechanical properties, thermal conductivity and casting properties of the heat-conductive aluminum alloy, the heat-conductive aluminum alloy consists of 8.0 to 11.0% by weight of Si, 0.4 to 0.6% by weight of Fe, 0.4 to 0.8% by weight of Mg, less than 0.01% by weight of Zn, less than 0.01% by weight of Mn, less than 0.1% by weight of Sr and less than 0.01% by weight of Cu.
  • the heat-conductive aluminum alloy prepared according to the formula has a tensile strength of not less than 270 MPa, a yield strength of not less than 160 MPa, an elongation of not less than 5%, and a thermal conductivity of not less than 160 W/(m ⁇ K).
  • the thermal conductivity of the die-casting material after 5 times of recycling is not less than 138 W/(m ⁇ K), which is 86% or above of the thermal conductivity of the new material.
  • the thermal conductivity of the die-casting material after 10 times of recycling is not less than 125 W/(m ⁇ K), which is 78% or above of the thermal conductivity of the new material.
  • a second aspect of the present disclosure provides application of the heat-conductive aluminum alloy as described above in the manufacture of metal structural members and/or heat sinks for electronic and electrical products.
  • the heat-conductive aluminum alloy contains 5.0 parts by weight of Si, 1.0 part by weight of Fe, 0.2 part by weight of Mg, 0.05 part by weight of Zn, 0.05 part by weight of Mn, 0.05 part by weight of Sr, 0.05 part by weight of Cu and the balance of Al.
  • the furnace was preheated at 400° C. for 25 minutes and purged with argon gas, the corresponding parts by weight of pure aluminum ingot was added for melting, and when the temperature of the pure aluminum liquid reached 800° C., the pure aluminum liquid was allowed to stand for 25 minutes to fully melt the pure aluminum ingot.
  • the furnace was cooled to 760° C., 5.0 parts by weight of pure silicon was added, and the mixture was allowed to stand at a constant temperature for 25 minutes, and after melting, stirring was continued for 15 minutes.
  • the furnace was cooled to 700° C., the remaining intermediate alloy was added, and after melting was completed, the mixture was allowed to stand.
  • the heat-conductive aluminum alloy contains 11.0 parts by weight of Si, 0.4 part by weight of Fe, 1.0 part by weight of Mg, 0.05 part by weight of Zn, 0.05 part by weight of Mn, 0.05 part by weight of Sr, 0.05 part by weight of Cu and the balance of Al.
  • the furnace was preheated at 400° C. for 25 minutes and purged with argon gas, the corresponding parts by weight of pure aluminum ingot was added for melting, and when the temperature of the pure aluminum liquid reached 800° C., the pure aluminum liquid was allowed to stand for 25 minutes to fully melt the pure aluminum ingot.
  • the furnace was cooled to 760° C., 11.0 parts by weight of pure silicon was added, and the mixture was allowed to stand at a constant temperature for 25 minutes, and after melting, stirring was continued for 15 minutes.
  • the furnace was cooled to 700° C., the remaining intermediate alloy was added, and after melting was completed, the mixture was allowed to stand.
  • the heat-conductive aluminum alloy contains 8.0 parts by weight of Si, 0.4 part by weight of Fe, 0.4 part by weight of Mg, 0.008 part by weight of Zn, 0.008 part by weight of Mn, 0.05 part by weight of Sr, 0.008 part by weight of Cu and the balance of Al.
  • the furnace was preheated at 400° C. for 25 minutes and purged with argon gas, the corresponding parts by weight of pure aluminum ingot was added for melting, and when the temperature of the pure aluminum liquid reached 800° C., the pure aluminum liquid was allowed to stand for 25 minutes to fully melt the pure aluminum ingot.
  • the furnace was cooled to 760° C., 8.0 parts by weight of pure silicon was added, and the mixture was allowed to stand at a constant temperature for 25 minutes, and after melting, stirring was continued for 15 minutes.
  • the furnace was cooled to 700° C., the remaining intermediate alloy was added, and after melting was completed, the mixture was allowed to stand.
  • the heat-conductive aluminum alloy contains 11.0 parts by weight of Si, 0.6 part by weight of Fe, 0.8 part by weight of Mg, 0.002 part by weight of Zn, 0.002 part by weight of Mn, 0.002 part by weight of Sr, 0.002 part by weight of Cu and the balance of Al.
  • the furnace was preheated at 400° C. for 25 minutes and purged with argon gas, the corresponding parts by weight of pure aluminum ingot was added for melting, and when the temperature of the pure aluminum liquid reached 800° C., the pure aluminum liquid was allowed to stand for 25 minutes to fully melt the pure aluminum ingot.
  • the furnace was cooled to 760° C., 11.0 parts by weight of pure silicon was added, and the mixture was allowed to stand at a constant temperature for 25 minutes, and after melting, stirring was continued for 15 minutes.
  • the furnace was cooled to 700° C., the remaining intermediate alloy was added, and after melting was completed, the mixture was allowed to stand.
  • the heat-conductive aluminum alloy contains 9.5 parts by weight of Si, 0.6 part by weight of Fe, 0.6 part by weight of Mg, 0.005 part by weight of Zn, 0.005 part by weight of Mn, 0.05 part by weight of Sr, 0.005 part by weight of Cu and the balance of Al.
  • the furnace was preheated at 400° C. for 25 minutes and purged with argon gas, the corresponding parts by weight of pure aluminum ingot was added for melting, and when the temperature of the pure aluminum liquid reached 800° C., the pure aluminum liquid was allowed to stand for 25 minutes to fully melt the pure aluminum ingot.
  • the furnace was cooled to 760° C., 9.5 parts by weight of pure silicon was added, and the mixture was allowed to stand at a constant temperature for 25 minutes, and after melting, stirring was continued for 15 minutes.
  • the furnace was cooled to 700° C., the remaining intermediate alloy was added, and after melting was completed, the mixture was allowed to stand.
  • the heat-conductive aluminum alloy contains 4.2 parts by weight of Si, 0.2 part by weight of Fe, 0.4 part by weight of Mg, 0.05 part by weight of Zn, 0.05 part by weight of Mn, 0.05 part by weight of Ni, 0.05 part by weight of Cr and the balance of Al.
  • the furnace was preheated at 400° C. for 25 minutes and purged with argon gas, the corresponding parts by weight of pure aluminum ingot was added for melting, and when the temperature of the pure aluminum liquid reached 800° C., the pure aluminum liquid was allowed to stand for 25 minutes to fully melt the pure aluminum ingot.
  • the furnace was cooled to 760° C., 4.2 parts by weight of pure silicon was added, and the mixture was allowed to stand at a constant temperature for 25 minutes, and after melting, stirring was continued for 15 minutes.
  • the furnace was cooled to 700° C., the remaining intermediate alloy was added, and after melting was completed, the mixture was allowed to stand.
  • the heat-conductive aluminum alloy contains 4.0 parts by weight of Si, 0.2 part by weight of Fe, 0.1 part by weight of Mg, 0.15 part by weight of Zn, 0.15 part by weight of Mn, 0.15 part by weight of Sr, 0.15 part by weight of Cu and the balance of Al.
  • the furnace was preheated at 400° C. for 25 minutes and purged with argon gas, the corresponding parts by weight of pure aluminum ingot was added for melting, and when the temperature of the pure aluminum liquid reached 800° C., the pure aluminum liquid was allowed to stand for 25 minutes to fully melt the pure aluminum ingot.
  • the furnace was cooled to 760° C., 4.0 parts by weight of pure silicon was added, and the mixture was allowed to stand at a constant temperature for 25 minutes, and after melting, stirring was continued for 15 minutes.
  • the furnace was cooled to 700° C., the remaining intermediate alloy was added, and after melting was completed, the mixture was allowed to stand.
  • the heat-conductive aluminum alloy contains 12.0 parts by weight of Si, 0.2 part by weight of Fe, 0.1 part by weight of Mg, 0.15 part by weight of Zn, 0.15 part by weight of Mn, 0.15 part by weight of Sr, 0.15 part by weight of Cu and the balance of Al.
  • the furnace was preheated at 400° C. for 25 minutes and purged with argon gas, the corresponding parts by weight of pure aluminum ingot was added for melting, and when the temperature of the pure aluminum liquid reached 800° C., the pure aluminum liquid was allowed to stand for 25 minutes to fully melt the pure aluminum ingot.
  • the furnace was cooled to 760° C., 12.0 parts by weight of pure silicon was added, and the mixture was allowed to stand at a constant temperature for 25 minutes, and after melting, stirring was continued for 15 minutes.
  • the furnace was cooled to 700° C., the remaining intermediate alloy was added, and after melting was completed, the mixture was allowed to stand.
  • the heat-conductive aluminum alloy contains 4.0 parts by weight of Si, 1.2 parts by weight of Fe, 1.0 part by weight of Mg, 0.15 part by weight of Zn, 0.15 part by weight of Mn, 0.15 part by weight of Sr, 0.15 part by weight of Cu and the balance of Al.
  • the furnace was preheated at 400° C. for 25 minutes and purged with argon gas, the corresponding parts by weight of pure aluminum ingot was added for melting, and when the temperature of the pure aluminum liquid reached 800° C., the pure aluminum liquid was allowed to stand for 25 minutes to fully melt the pure aluminum ingot.
  • the furnace was cooled to 760° C., 4.0 parts by weight of pure silicon was added, and the mixture was allowed to stand at a constant temperature for 25 minutes, and after melting, stirring was continued for 15 minutes.
  • the furnace was cooled to 700° C., the remaining intermediate alloy was added, and after melting was completed, the mixture was allowed to stand.
  • This test embodiment is used to determine the mechanical properties, thermal conductivity and flow formability at room temperature of the heat-conductive aluminum alloys obtained in Embodiments 1 to 5 and Comparative Examples 1 to 4.
  • the heat-conductive aluminum alloy in each of the embodiments and comparative examples was prepared into a circular sample having a diameter of 12.7 mm and a thickness of 25.4 mm; a graphite coating was uniformly sprayed on both sides of the sample to be tested; and the treated sample was placed in a laser thermal conductivity tester for testing.
  • the test was performed in accordance with ASTM E1461 Standard Test Method for Thermal Diffusivity by the Flash Method. The specific test results are shown in Table 1.
  • the tensile strength, yield strength and elongation of the aluminum alloy were tested in accordance with GB/T 228.1-2010 Metallic Materials-Tensile Testing-Part 1: Method of test at room temperature.
  • the sheets extruded in Embodiments 1 to 5 and Comparative Examples 1 to 4 were subjected to wire-cutting to prepare standard tensile samples, and the axial direction of the tensile specimens was consistent with the extrusion direction.
  • the specific test results are shown in Table 1.
  • the fluidity of the heat-conductive aluminum alloy material was determined by a mosquito coil mold:
  • the mosquito coil mold was a mold having a mold cavity in a mosquito coil shape, and the formed metal member had a spiral shape.
  • the heat-conductive aluminum alloys of Embodiments 1 to 5 and Comparative Examples 1 to 4 were smelted at 730° C., and after being completely melted, they were air-cooled to 690° C. and cast into a mosquito coil mold for a fluidity test. The length of the formed aluminum alloy spiral sample was measured. The specific results are shown in Table 1.
  • the heat-conductive aluminum alloy prepared by the present disclosure has better mechanical properties: the tensile strength is not less than 250 MPa, the yield strength is not less than 150 MPa, and the elongation is not less than 3.5%. While having good mechanical properties, the heat-conductive aluminum alloy has good flow forming property, and the forming fluidity measured by a mosquito coil mold is not less than 1150 mm. The thermal conductivity is not less than 150 W/(m ⁇ K).
  • the prepared heat-conductive aluminum alloy when the heat-conductive aluminum alloy contains 8.0 to 11.0% by weight of Si, 0.4 to 0.6% by weight of Fe, 0.4 to 0.8% by weight of Mg, less than 0.01% by weight of Zn, less than 0.01% by weight of Mn, less than 0.1% by weight of Sr and less than 0.01% by weight of Cu, the prepared heat-conductive aluminum alloy has a tensile strength of not less than 270 MPa, a yield strength of not less than 160 MPa, an elongation of not less than 5% and a thermal conductivity of not less than 160 W/(m ⁇ K).
  • This test embodiment is used to determine the thermal conductivity of the heat-conductive aluminum alloys obtained in Embodiments 1 to 5 and Comparative Examples 1 to 4 after recycling.
  • the thermal conductivity of the die-casting material after 5 times of recycling is not less than 125 W/(m ⁇ K), which is 83% or above of the thermal conductivity of the new material.
  • the thermal conductivity of the die-casting material after 10 times of recycling is not less than 112 W/(m ⁇ K), which is 75% or above of the thermal conductivity of the new material.
  • the thermal conductivity of the die-casting material after 5 times of recycling of the heat-conductive aluminum alloy is not less than 138 W/(m ⁇ K), which is 86% or above of the thermal conductivity of the new material.
  • the thermal conductivity of the die-casting material after 10 times of recycling is not less than 125 W/(m ⁇ K), which is 78% or above of the thermal conductivity of the new material.

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  • Chemical & Material Sciences (AREA)
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US16/463,426 2016-11-23 2017-10-25 Thermally conductive aluminum alloy and application thereof Abandoned US20210108290A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN201611038514.1 2016-11-23
CN201611038514.1A CN108085541B (zh) 2016-11-23 2016-11-23 一种导热铝合金及其应用
PCT/CN2017/107692 WO2018095186A1 (fr) 2016-11-23 2017-10-25 Alliage d'aluminium thermoconducteur et son utilisation

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EP (1) EP3546607A4 (fr)
JP (1) JP2020500265A (fr)
KR (1) KR20190073465A (fr)
CN (1) CN108085541B (fr)
WO (1) WO2018095186A1 (fr)

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CN108866396B (zh) * 2018-06-22 2020-07-24 广州致远新材料科技有限公司 一种高导热铝合金材料及其热处理方法
CN108866397B (zh) * 2018-06-22 2020-07-24 广州致远新材料科技有限公司 高导热铝合金材料的制备方法及高导热铝合金
CN108866366A (zh) * 2018-06-25 2018-11-23 广州致远新材料科技有限公司 一种铝合金材料的制备方法
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CN109136696B (zh) * 2018-08-08 2023-11-03 倧奇健康科技有限公司 一种红外辐射材料及其制备方法以及红外发射基材
CN111979455B (zh) * 2019-05-24 2021-12-07 比亚迪股份有限公司 一种压铸铝合金及其制备方法和应用
CN110343918A (zh) * 2019-06-26 2019-10-18 华为技术有限公司 高导热铝合金材料及其制备方法
CN110343916A (zh) * 2019-08-19 2019-10-18 北京科技大学 适用于流变压铸的高导热铝合金及其制备方法和成形工艺
CN113817938B (zh) * 2020-06-18 2023-01-06 比亚迪股份有限公司 一种铝合金及其制备方法、应用
CN111945039B (zh) * 2020-07-20 2021-11-23 深圳市日研铝业有限公司 一种压铸铝合金、铝合金压铸件及其制造方法
CN112159916B (zh) * 2020-08-27 2021-09-03 比亚迪股份有限公司 一种铝合金及其应用
KR102553706B1 (ko) * 2021-01-07 2023-07-10 주식회사 에스제이테크 성형성, 내식성, 고열전도도 및 강도가 우수한 알루미늄 다이캐스팅 합금
KR102553711B1 (ko) * 2021-01-08 2023-07-10 주식회사 에스제이테크 성형성, 내식성, 고열전도도 및 강도가 우수한 알루미늄 다이캐스팅 합금
CN114959376B (zh) * 2021-02-18 2023-04-07 Oppo广东移动通信有限公司 压铸铝合金及其制备方法、电子设备结构件和电子设备
CN113528899B (zh) * 2021-07-20 2022-04-29 中铝瑞闽股份有限公司 一种高导热高强度铝合金薄板及其制备方法
KR102461964B1 (ko) * 2021-08-11 2022-11-03 레몬메탈 주식회사 알루미늄 합금
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CN108085541B (zh) 2020-04-24
EP3546607A1 (fr) 2019-10-02
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WO2018095186A1 (fr) 2018-05-31
KR20190073465A (ko) 2019-06-26
CN108085541A (zh) 2018-05-29

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