共查询到20条相似文献,搜索用时 171 毫秒
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轻量化是我国汽车节能减排的重要途径,轻量化是现代汽车发展的追求,尽量多的采用铝制零部件是实现轻量化最可取的措施.目前,铝及铝合金是当前及未来汽车的理想材料.在制造厂追求轻量化、政府倡导节能减排与消费者追求高性能的作用下,铝合金材料在汽车领域的应用获得了长足进展. 相似文献
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铝质汽车散热器及其材料 总被引:11,自引:1,他引:10
散热器铝化是汽车实现轻量化的重要措施,介绍了铝质汽车散热器的发展过程,接合技术,散热片与冷却水管的加工制造及其材料,以及腐蚀问题,指出加快高精度,高性能铝合金硬钎焊薄板和薄壁管材的国产化是我国铝加工行业当前面临的重要课题。 相似文献
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材料加工技术创新与汽车轻量化 总被引:2,自引:0,他引:2
轻量化是当前汽车工业的发展方向,材料加工技术的创新是汽车轻量化的关键所在,这主要表现在两个方面:一是新型高强度或(和)低密度轻质材料的开发和轻质零件的制备,用其取代传统钢铁零部件,可以大大减轻汽车自重,如高强度钢、铝、镁合金等金属材料以及高分子材料和复合材料等;其二是采用新的成形工艺实现零件及车身部件结构的简化和轻型化,节约生产材料、提高工作性能,如剪裁毛坯、液压成形、零件轧制、发泡铝成形、激光焊接等.最后还展望了汽车轻量化的发展趋势. 相似文献
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《特种铸造及有色合金》2015,(12)
<正>新能源汽车与传统汽车不同,是采用电池作为动力来驱动汽车运行,其受动力电池质量、动力电池续航里程的制约以及汽车节能减排政策的高压,在车辆设计和材料应用上,其车体轻量化成为车企首先要考虑的问题。因此,电池驱动的新能源汽车比传统汽车更迫切需要车身减重。这也为铝等轻质材料开拓了更加广阔的市场空间。在汽车轻量化材料中,铝合金材料综合性价比要高于钢、镁、塑料和复合材料,无论应用技术还是运行安全性及循环再生利 相似文献
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Laser welding, regarded as one of the welding techniques for use with steel materials and employed in the fabrication of automobiles, has increasing applications in the manufacture of transmission systems and car bodies; however, there are not many examples of application to aluminium alloy components.1 The reasons for this are thought to be as follows: aluminium alloys have a higher laser reflectivity compared with that of steel materials; consequently an even higher power laser is required to input energy to the material for welding and also, due to the low viscosity of molten aluminium alloy, stable welding is difficult.2,3 相似文献
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High speed welding of aluminium alloy sheets with using the laser/AC pulsed MIG hybrid process 总被引:1,自引:0,他引:1
The reduction of energy consumption has become the global task in recent years as a countermeasure to address the global warming issue caused by the mass discharge of carbon dioxide. The volume of carbon dioxide emission from automobiles has become approximately 21 % of the total emission by volume, so improved fuel efficiency is strongly urged and the development and application of new technologies have been actively implemented; the technologies required to reduce the weight of the automobile body, in particular, has attracted a much attention.1 Amongst these, aluminium alloys have a high strength for their light weight and have superior recycling properties, so the move to reduce the automobile body weight by replacing the existing materials with aluminium alloys has progressed rapidly and totally aluminium alloy automobiles have now become commercially available.2 相似文献
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Abstract Laser welding, regarded as one of the welding techniques for use with steel materials and employed in the fabrication of automobiles, has increasing applications in the manufacture of transmission systems and car bodies; however, there are not many examples of application to aluminium alloy components.1 The reasons for this are thought to be as follows: aluminium alloys have a higher laser reflectivity compared with that of steel materials; consequently an even higher power laser is required to input energy to the material for welding and also, due to the low viscosity of molten aluminium alloy, stable welding is difficult.2,3 相似文献
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轿车发动机铝合金缸体和缸盖的铸造技术 总被引:9,自引:1,他引:9
为了降低燃料消耗 ,轿车铸件朝着轻量化、精确化、强韧化和复合化方向发展。而扩大铝合金的应用是轿车工业的重要发展趋势 ,目前几乎全部轿车缸盖已采用高强度铝合金生产 ,预计有更多的缸体也将采用铝合金生产。世界若干主要的轿车制造厂各自所采用铸造技术 ,如压力铸造、中压铸造、低压铸造、金属型铸造、Cosworth法、精确砂型铸造、实型铸造和湿型铸造 ,生产轿车用的铝合金缸体和缸盖 相似文献
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随着汽车轻量化策略的持续推进,作为汽车车身应用轻量化材料的铝合金板已成为汽车轻量化领域的研发重点,而连续铸轧技术是生产汽车车身铝板较为先进的技术之一。本文通过收集德温特创新索引国际专利数据库(DII)、普若凯斯特专利数据库(Proquest Dialog)等涉及连续铸轧生产铝汽车板的专利,利用汤姆森数据分析软件(Thomson Data Analyzer)等主流情报分析工具,对连续铸轧生产汽车板技术在全球的研发现状、态势及主要技术方向,以及美国铝业公司连续铸轧生产铝汽车板专利发展态势进行分析。 相似文献
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铝合金液态模锻的应用及发展 总被引:1,自引:0,他引:1
叙述了铝合金液态模锻成形的工艺实质、方法及其特点。阐述了铝合金液态模锻工艺的优点。介绍了液态模锻成形轿车零件的应用实例,指出了铸造技术和模锻技术有机结合成先进的液态模锻成形工艺是一种行之有效的新技术。 相似文献
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