使用 Al-25%Si 压铸轻质薄翅片散热器

Metals Pub Date : 2024-05-24 DOI:10.3390/met14060622
Toshio Haga, H. Fuse
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引用次数: 0

摘要

对重量轻、成本低的散热片的需求与日俱增。经济地制造复杂形状散热器的典型方法是压铸。为了减轻压铸散热器的重量,通常的做法是将散热片和底座减薄。我们尝试在传统压铸机中使用 Al-25%Si 铸造散热器,目的是经济地生产出更薄的散热片和底座。与传统压铸中使用的铝合金相比,Al-25%Si 具有优异的流动性,这对于减薄鳍片和底座的厚度非常有用。因此,我们使用 Al-25%Si 和传统压铸机成功地减轻了散热器的重量。为了研究生产出的 Al-25%Si 薄鳍散热器的性能,我们比较了鳍片厚度、鳍片高度、鳍片数量和基座厚度对散热和减重的影响。此外,我们还将重量和散热性能与商用散热器进行了比较,发现我们的铝-25% 硅散热器保持了相同的散热性能,但重量减轻了 35%。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Die Casting of Lightweight Thin Fin Heat Sink Using Al-25%Si
The demand for lightweight and cost-effective heat sinks is increasing. A typical method for economically manufacturing complex-shape heat sinks is die casting. To reduce the weight of the die-cast heat sinks, thinning the fins and base is common practice. We experimented with casting heat sinks using Al-25%Si in a conventional die casting machine with the aim of economically producing thinner fins and bases. Compared with the aluminum alloy used in conventional die casting, Al-25%Si has superior fluidity, which is proven to be very useful for reducing the thickness of the fins and base. As a result, we successfully reduced the heat sink weight using Al-25%Si and a conventional die casting machine. To investigate the properties of the produced Al-25%Si thin fin heat sink, we compared the effects of fin thickness, fin height, number of fins, and base thickness on heat dissipation and weight reduction. Additionally, we compared the weight and heat dissipation properties with those of a commercial heat sink and found that our Al-25%Si heat sink maintains the same heat dissipation performance but for 35% lower weight.
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