Thermal conductivity in aluminum cylinder heads: process optimization

近年来，人们对轻合金在汽车上的应用越来越感兴趣。燃料成本的增加和政府对碳排放的立法促使汽车制造商生产更轻、更省油的汽车。铝合金汽车部件，如气缸盖的使用，大大减轻了车辆重量，使其更省油。气缸盖是内燃机的一个组成部分。它将空气和汽油输送到燃烧室，并作为气缸的盖子。气缸盖只有通过有效的冷却才能支撑高燃烧温度。当材料受热不均匀时，就会产生热应力，这些热应力会缩短发动机的使用寿命，甚至导致故障。具有高导热性的材料可以使发动机的温度分布更低、更均匀，减少热应力和疲劳。拟议的研究项目旨在通过合作伙伴与研究人员的创新专业知识之间的合作，建立能够优化导热性和机械性能的程序，提高工艺效率并降低成本。显著的好处包括增加气缸盖寿命和减少碳排放。

In recent years, there has been heightened interest in the use of light alloys for automotive applications. Increased fuel costs and government legislation on carbon emissions has pushed automobile manufacturers to produce lighter and more fuel efficient automobiles. The use of aluminum alloy automotive components, such as cylinder heads, greatly reduces vehicle weight, making them more fuel efficient. The cylinder head is an integral component of internal combustion engines. It conveys air and gasoline to the combustion chamber and serves as a cover for the cylinders. The cylinder head can support the high combustion temperatures only with efficient cooling. When a material is heated unevenly, thermal stresses result and these stresses can reduce the lifetime of engines or even cause failures. A material with high thermal conductivity results in a lower and more even temperature distribution in the engine and reduces thermal stresses and fatigue. The proposed research project aims, through collaboration between the partner and the innovative expertise of the researchers, to establish the procedures that will result in optimized thermal conductivity and mechanical properties, improved process efficiency and reduced costs. The significant benefits include increase of the cylinder head life and reduction of carbon emissions.