剪刃特别是大型剪刃的热处理,是一项比较复杂的工艺,经常出现变形、裂纹和硬度不均等缺陷。剪刀的材料为TS工具钢,有时也用45号钢。毛坯锻造后,经表1所示的退火处理,然后对规格较小的剪刃采取乙炔-氧烧嘴一面加热至780～800℃,一面连续进入水槽冷至室温;和采用电炉780～800℃高温装炉,经加热保温后分垂直及水平进入冷却液冷至室温等方法进行试验,得出表2的结果。从表2可看出:用全部加热工件、水平进入冷却液的淬火方法,由于工件进入冷却液时两端没有时间间 Shear edge, especially large-scale shear edge heat treatment, is a more complex process, often deformed, cracked and uneven hardness defects. The material for the scissors is TS tool steel, sometimes with 45 steel. Blank forging, after the annealing shown in Table 1, and then the smaller specifications of the cutting edge to take acetylene - oxygen burner side heated to 780 ~ 800 ℃, while continuously into the sink cooled to room temperature; and the use of electric furnace 780 ~ 800 ℃ High temperature furnace, after heating and cooling points into the vertical and horizontal cooling liquid to room temperature and other methods of testing, the results shown in Table 2. Can be seen from Table 2: All heated workpiece, the level of quenching into the coolant, as the workpiece into the coolant when there is no time