机械从生产出来后,在保管和使用中就开始了一个逐渐老化、直至报废的过程;研究这一老化过程的规律性,探讨适应这一规律的相应对策是机械修理学的核心内容,是指导机械维修生产的理论基础。一、机械老化的分类机械老化可以分为以下几类; After the machinery is produced, it begins a process of gradual aging and scrapping during its storage and use. It studies the regularity of this aging process, and discusses that the corresponding countermeasures to adapt to this law are the core contents of the mechanical repair science. The theoretical basis of mechanical maintenance production. First, the classification of mechanical aging Mechanical aging can be divided into the following categories;