Thermal conductivity in aluminum cylinder heads: process optimization

铝制气缸盖的导热性：工艺优化

• 批准号: 437659-2012
• 负责人: Ravindran, Comondore
• 金额: $ 4.78万
• 依托单位: Ryerson University
• 依托单位国家: 加拿大
• 项目类别: College - University Idea to Innovation Grants
• 财政年份: 2016
• 资助国家: 加拿大
• 起止时间: 2016-01-01 至 2017-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=596931
• 关键词: Thermal; conductivity; aluminum; cylinder; heads

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.

近年来，人们对轻合金在汽车应用中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推动了汽车制造商生产更轻、更省油的汽车。使用铝合金汽车部件，如气缸盖，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，并作为气缸盖。气缸盖只有通过有效的冷却才能承受高燃烧温度。当材料被不均匀地加热时，会产生热应力，这些应力会降低发动机的寿命，甚至导致故障。具有高导热性的材料导致发动机中更低和更均匀的温度分布，并减少热应力和疲劳。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，建立优化导热性和机械性能，提高工艺效率和降低成本的程序。显著的好处包括增加气缸盖寿命和减少碳排放。