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Novel aluminium alloy material with high thermal conductivity

An aluminum alloy material, high thermal conductivity technology, applied in the field of aluminum alloy, can solve the problems of slow heat dissipation and poor thermal conductivity, and achieve the effect of improving thermal conductivity

Inactive Publication Date: 2019-08-30
HUAJIN NEW MATERIALS RES INST GUANGZHOU CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The current mobile phones and signal relay stations generally use cast aluminum alloy ADC12 or aluminum silicon 12. This material has good casting performance, but the thermal conductivity is not very good. Taking ADC12 as an example, the thermal conductivity is ≥92w / m.k, and the heat dissipation is slow, so it is not suitable The requirements of 5G technology and the urgent market require a new aluminum alloy material with high thermal conductivity and high strength

Method used

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  • Novel aluminium alloy material with high thermal conductivity
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  • Novel aluminium alloy material with high thermal conductivity

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Embodiment 1

[0020] A new type of high thermal conductivity aluminum alloy material, the composition of which is calculated by mass percentage: silicon 6%-8%, magnesium ≤0.25%-0.35%, iron 0.50%-0.80%, copper ≤0.15%, zinc ≤0.10%, Lead ≤ 0.05%, strontium content 0.04% ~ 0.06%, boron 0.02% ~ 0.04%, manganese ≤ 001%, vanadium ≤ 0.15%, chromium ≤ 0.01%, titanium ≤ 0.01%; unavoidable impurities ≤ 0.20%, residual The content is aluminum; the silicon content is 6% to 8%; the boron content is 0.02% to 0.04%; the iron content is 0.5% to 0.8%; the strontium content is 0.04% to 0.06%; the magnesium content is 0.25% to 0.35%; Impurities to avoid include one or more of copper, zinc, tin, lead, titanium, chromium, manganese and vanadium. 7% silicon, 0.06% strontium and the balance of pure aluminum ingots are prepared; ② Then melt the alloy raw materials: put the pure aluminum ingots into the continuous melting reverberatory furnace for melting, and the temperature in the furnace is controlled at 800°C-85...

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Abstract

The invention discloses a novel aluminium alloy material with high thermal conductivity. Aluminum intermediate alloy is utilized to remove the element affecting the electric conductivity of molten aluminum. According to the novel aluminium alloy material, the tensile strength is greater than that of aluminium-silicon alloy 12, the thermal conductivity is equal to or greater than 150w / m.k, the tensile strength is equal to or greater than 190 MPa, the yield strength is equal to or greater than 150 MPa, and the ductility is equal to or greater than 4%; in the aspects of element content, casting technology, impurity removing technology (removing the element preventing increase of thermal conductivity) and thermal treatment technology (rapidly improving the casting thermal conductivity), the novel aluminium alloy material is different from the traditional aluminium alloy material, suitable for the artificial aging process applied in a die casting factory to improve the thermal conductivityof a casting after die casting, and has the characteristics of being subjected to die-casting, and high in thermal conductivity and strength.

Description

technical field [0001] The invention relates to the field of aluminum alloys, in particular to a novel high thermal conductivity aluminum alloy material. Background technique [0002] With the application of 5G technology, the future network speed will be higher, the CPU will run faster, and the CPU will generate more heat. If the heat generated by the CPU cannot be dissipated quickly, it will slow down the operation speed, shut down, or even burn the CPU. Whether it is a mobile phone or a signal relay station, stage lighting, and motor housing, there is a large demand for high thermal conductivity aluminum alloy materials. [0003] The current mobile phones and signal relay stations generally use cast aluminum alloy ADC12 or aluminum silicon 12. This material has good casting performance, but the thermal conductivity is not very good. Taking ADC12 as an example, the thermal conductivity is ≥92w / m.k, and the heat dissipation is slow, so it is not suitable The requirements o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C21/02C22C1/03C22C1/06
CPCC22C1/026C22C1/03C22C1/06C22C21/02
Inventor 范卫忠高伟全闫俊
Owner HUAJIN NEW MATERIALS RES INST GUANGZHOU CO LTD