The technics of boron, physical gas deposit, ozone immitting and multiple intermingle, whose property and effect in strengthening tools and mould life, is introduced through analysis of the treatment of high speed steel tools and its practical application.%针对冷冲模高速钢刀具的处理和实际应用，介绍渗硼、物理气相沉积、离子注入、多元共渗工艺方法的特点和延长工模具寿命的效果。
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