一、前言铍青铜分级时效是目前国外出现的一种最新工艺。这种时效工艺与以往传统的时效工艺的区别在于,它是采用两级时效的方法,我们把它叫做分级时效法,而以往传统的时效工艺都是单级时效。据国外资料(专利号No.511382)介绍,分级时效可以大大提高铍青铜的弹性性能和疲劳强度,还可以减少零件的变形,这对于弹性元 First, the preface Beryllium bronze classification aging is the latest appearance of a foreign technology. The difference between this aging process and the traditional aging process is that it uses a two-stage aging method, which is called grading aging method, whereas the conventional aging process is single-stage aging. According to foreign information (Patent No.511382) introduction, grading aging can greatly enhance the elasticity and fatigue strength of beryllium bronze, but also can reduce the deformation of parts, which for the elastic element