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本文以目前轿车悬架中用得最多的螺旋弹簧为对象,介绍一下弹簧用钢的选材及其热处理。对弹簧而言,有所谓“弹簧硬度”这样一个术语。根据使用条件,一般规定一定的硬度范围。对于弹簧材料,必须要有高的弹性极限和抗疲劳性能,以此保证弹簧不折断和不降低弹性。所谓弹性衰退,系指当弹簧承受静或动载荷时产生的永久变形,若弹性衰退超过规定
In this paper, the most used coil springs in the current suspension of passenger cars are targeted at the selection of spring steel and its heat treatment. For springs, there is a term called “spring hardness.” According to the conditions of use, the general provisions of the hardness range. For spring materials, there must be a high elastic limit and fatigue resistance to ensure that the spring does not break and does not reduce the elasticity. The so-called elastic recession, when the spring is subjected to static or dynamic load generated permanent deformation, if the elasticity of decline exceeds the provisions