加工硬化在工业生产中是一种重要的强化手段,同时,也能给生产过程中的金属继续塑性变形造成困难。因此,常采用“中间退火”工序以消除其不利影响。经研究试验,用适当提高加热温度并减少零件保温时间的快速退火法,代替原来的保温时间长、随炉冷却速度慢的普通热处理方法,对于民品板金件的大批量生产是经济、有效的。处理后的零件表面仅有一层氧化色,无较厚的氧化层,此亦优于传统工艺。 Work hardening in industrial production is an important means of strengthening, but also to the production process of metal continue to cause plastic deformation difficulties. Therefore, often use “intermediate annealing” process to eliminate its adverse effects. The research and experiments, with the appropriate increase in heating temperature and reduce the parts of the fast annealing time annealing method, instead of the original long holding time, with the furnace cooling slow ordinary heat treatment method for the civilian production of high-volume sheet metal parts is economical and effective. After treatment, the surface of the part is only a layer of oxidation color, no thick oxide layer, which is also superior to the traditional process.