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一前言近年来,城市使用的自行车趋向于“高档”、“轻型”。但是,采用传统的钢制零件组装的自行车已经难以再轻了。因此,研究开发轻合金材料制造自行车零件,乃是一种实现自行车轻型化的突破性措施。国外早已进行这项工作并取得很大进展。如日本某些公司生产的摩托车,采用了十六种(20件)铝结构零件。美国、西欧一些公司在七十年代中期已经生产各种规格的铝合金整铸式轮圈。国内也有部分高档自行车采用铝合金零件。由于铝合金和结构钢的力学物理性能差异甚大,以铝代钢制造自行车关键零件时,必须进行全面的受力分析与力学物理性能试验研究,才能得出可行性结论。本文就采用新研制的NG-Ⅲ稀土光
A foreword In recent years, bicycles used in cities tend to be “upscale”, “light”. However, bicycles assembled with traditional steel parts are no longer easy to use. Therefore, the research and development of light alloy materials for manufacturing bicycle parts is a breakthrough measure to realize lightweighting of bicycles. This work has long been done abroad and great progress has been made. For example, some Japanese companies produce motorcycles, using 16 kinds of (20) aluminum parts. Some companies in the United States and Western Europe have produced all-aluminum alloy wheels of various specifications in the mid-1970s. There are some high-end domestic use of aluminum alloy bicycle parts. As the mechanical and physical properties of aluminum alloy and structural steel have great differences, it is necessary to carry out a comprehensive force analysis and mechanical and physical performance test research on the key parts of bicycle made of aluminum, in order to draw a feasible conclusion. In this paper, the newly developed NG-Ⅲ rare earth light