根据锻模的损伤机理 ,针对模具的高寿命和良好的抗磨损要求 ,提出了一种局域气氛下电接触瞬态热源表面强化新工艺 ,并设计了一台用于材料表面强化的新设备。应用该设备对典型热锻模材料进行表面强化处理 ,取得了良好的改性效果 According to the damage mechanism of forging die, aiming at the high service life and good anti-wear requirement of die, a new technology of surface toughening of instantaneous heat source under local atmosphere was proposed and a new equipment for surface strengthening of material was designed . Application of this equipment to the surface of a typical hot forging material strengthening treatment, and achieved good modification