T10A钢冷冲模具目前通用的工艺,如图1示。按图1工艺处理的冷冲模,使用中失效形式多为脆性断裂或多次冲击疲劳断裂。为提高模具的使用寿命,模具的硬度、强度、韧性、塑性应有合理配合。碳化物超细化处理可满足这个要求,处理后显微组织中小而圆的细粒状超细化碳化物,可以提高小能量 T10A steel die cold current common technology, shown in Figure 1 shows. According to the process of Figure 1 cold die, the failure of the form of mostly brittle fracture or multiple impact fatigue fracture. To improve the service life of the mold, the mold hardness, strength, toughness, plastic should be a reasonable fit. Carbide ultrafine treatment to meet this requirement, after treatment, the microstructure of small and round fine grained ultrafine carbide, can increase the small energy