GCr15钢丝的生产过程必须以球化退火做预处理,同时中间退火次数多,生产周期长,金属损耗大,影响经济效益,因而查清其拉拔性能,以制定经济合理的拉拔工艺是非常必要的。在一定拉拔条件下钢丝的拉拔性能可由其拉拔直至断裂的容量来表示(1)。拉断 The production process of GCr15 steel wire must be pretreatment with spheroidizing annealing, meanwhile there are many intermediate annealing times, long production cycle and large metal loss, which affect the economic benefits, so it is very difficult to find out the drawing performance in order to make the economic and reasonable drawing process necessary. Under certain drawing conditions, the drawing performance of the wire can be expressed by its capacity of drawing until breaking (1). Pull off