我国新一代“变截面轧机”问世板簧是汽车的重要部件。变截面板簧是等截面板簧的换代产品。这种板簧具有自重轻、疲劳寿命长、乘座舒适性好等优点，而且节省材料、节约能量、越来越被广泛采用。工业发达国家早已用专用的变截面轧机来生产变截面板簧。以北京科技大学压力加... China’s new generation of “variable cross-section mill” is the introduction of leaf springs is an important part of the car. The variable section leaf spring is the replacement of the leaf spring with the same section. This leaf spring has the advantages of light weight, long fatigue life, good riding comfort, etc., and saves materials and saves energy and is more and more widely adopted. Industrialized countries already use a special variable section rolling mill to produce variable section leaf spring. To Beijing University of Technology pressure ...